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Knechtle B, Weiss K, Valero D, Villiger E, Nikolaidis PT, Andrade MS, Scheer V, Cuk I, Gajda R, Thuany M. Using machine learning to determine the nationalities of the fastest 100-mile ultra-marathoners and identify top racing events. PLoS One 2024; 19:e0303960. [PMID: 39172797 PMCID: PMC11340887 DOI: 10.1371/journal.pone.0303960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 05/04/2024] [Indexed: 08/24/2024] Open
Abstract
The present study intended to determine the nationality of the fastest 100-mile ultra-marathoners and the country/events where the fastest 100-mile races are held. A machine learning model based on the XG Boost algorithm was built to predict the running speed from the athlete's age (Age group), gender (Gender), country of origin (Athlete country) and where the race occurred (Event country). Model explainability tools were then used to investigate how each independent variable influenced the predicted running speed. A total of 172,110 race records from 65,392 unique runners from 68 different countries participating in races held in 44 different countries were used for analyses. The model rates Event country (0.53) as the most important predictor (based on data entropy reduction), followed by Athlete country (0.21), Age group (0.14), and Gender (0.13). In terms of participation, the United States leads by far, followed by Great Britain, Canada, South Africa, and Japan, in both athlete and event counts. The fastest 100-mile races are held in Romania, Israel, Switzerland, Finland, Russia, the Netherlands, France, Denmark, Czechia, and Taiwan. The fastest athletes come mostly from Eastern European countries (Lithuania, Latvia, Ukraine, Finland, Russia, Hungary, Slovakia) and also Israel. In contrast, the slowest athletes come from Asian countries like China, Thailand, Vietnam, Indonesia, Malaysia, and Brunei. The difference among male and female predictions is relatively small at about 0.25 km/h. The fastest age group is 25-29 years, but the average speeds of groups 20-24 and 30-34 years are close. Participation, however, peaks for the age group 40-44 years. The model predicts the event location (country of event) as the most important predictor for a fast 100-mile race time. The fastest race courses were occurred in Romania, Israel, Switzerland, Finland, Russia, the Netherlands, France, Denmark, Czechia, and Taiwan. Athletes and coaches can use these findings for their race preparation to find the most appropriate racecourse for a fast 100-mile race time.
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Affiliation(s)
- Beat Knechtle
- Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Katja Weiss
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - David Valero
- Ultra Sports Science Foundation, Pierre-Benite, France
| | - Elias Villiger
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | | | | | - Volker Scheer
- Ultra Sports Science Foundation, Pierre-Benite, France
| | - Ivan Cuk
- Faculty of Sport and Physical Education, University of Belgrade, Belgrade, Serbia
| | - Robert Gajda
- Center for Sports Cardiology at the Gajda-Med Medical Center in Pułtusk, Pułtusk, Poland
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Jastifer JR, Jastifer EJ, Hoffman MD. COVID-19 Infection in Ultramarathon Runners: Findings of the Ultrarunners Longitudinal TRAcking Study. Clin J Sport Med 2024:00042752-990000000-00208. [PMID: 38975933 DOI: 10.1097/jsm.0000000000001252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 05/31/2024] [Indexed: 07/09/2024]
Abstract
OBJECTIVE Ultramarathon runners are a unique patient population who have been shown to have a lower rate of severe chronic medical conditions. This study aimed to determine the effect that COVID-19 infection has had on this population and their running behavior. DESIGN The Ultrarunners Longitudinal TRAcking (ULTRA) Study is a large longitudinal study of ultramarathon runners. Questions on health status, running behavior, and COVID-19 infection were included in the most recent survey. SETTING Community survey. PARTICIPANTS Seven hundred thirty-four ultramarathon runners participated in the study. INTERVENTIONS None. MAIN OUTCOME MEASURES Personal, exercise, and COVID-19 infection history. RESULTS 52.7% of study participants reported having been symptomatic from a COVID-19 infection, with 6.7% testing positive multiple times. Participants required a total of 4 days of hospitalization. The most common symptoms included fever (73.6%), fatigue (68.5%), sore throat (68.2%), runny nose (67.7%), and cough (67.4%). Cardiovascular symptoms, which are of particular interest in the running population, included shortness of breath (46.3%), tachycardia (44.7%), chest pain (36.2%), and wheezing (33.3%). A total of 50 subjects (6.8%) reported long COVID (symptoms lasting more than 12 weeks). CONCLUSIONS Severe COVID-19 infection has been rare in this population of ultramarathon runners, although symptomatic infection that affects running is common. To support the well-being of this group of highly active athletes, clinicians should appreciate that cardiovascular symptoms are common and the long-term significance of these symptoms in runners is unknown. LEVEL OF EVIDENCE Level 2 prospective study.
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Affiliation(s)
- James R Jastifer
- Department of Orthopedic Surgery, Ascension Borgess Hospital
- Department of Orthopaedic Surgery, Western Michigan University Homer Stryker MD School of Medicine
| | - Ethan J Jastifer
- Department of Orthopedic Surgery, Ascension Borgess Hospital
- Department of Orthopaedic Surgery, Western Michigan University Homer Stryker MD School of Medicine
| | - Martin D Hoffman
- Department of Orthopedic Surgery, Ascension Borgess Hospital
- Department of Orthopaedic Surgery, Western Michigan University Homer Stryker MD School of Medicine
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Coratella G, Varesco G, Rozand V, Cuinet B, Sansoni V, Lombardi G, Vernillo G, Mourot L. Downhill running increases markers of muscle damage and impairs the maximal voluntary force production as well as the late phase of the rate of voluntary force development. Eur J Appl Physiol 2024; 124:1875-1883. [PMID: 38195943 PMCID: PMC11129977 DOI: 10.1007/s00421-023-05412-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/31/2023] [Indexed: 01/11/2024]
Abstract
PURPOSE To examined the time-course of the early and late phase of the rate of voluntary force development (RVFD) and muscle damage markers after downhill running. METHODS Ten recreational runners performed a 30-min downhill run at 10 km h-1 and -20% (-11.3°) on a motorized treadmill. At baseline and each day up to 4 days RVFD, knee extensors maximum voluntary isometric force (MVIC), serum creatine kinase (CK) concentration, quadriceps swelling, and soreness were assessed. The early (0-50 ms) and late (100-200 ms) phase of the RVFD, as well as the force developed at 50 and 200 ms, were also determined. RESULTS MVIC showed moderate decrements (p < 0.05) and recovered after 4 days (p > 0.05). Force at 50 ms and the early phase were not impaired (p > 0.05). Conversely, force at 200 ms and the late phase showed moderate decrements (p < 0.05) and recovered after 3 and 4 days, respectively (p > 0.05). CK concentration, quadriceps swelling, and soreness increased (p < 0.05) were overall fully resolved after 4 days (p > 0.05). CONCLUSION Downhill running affected the knee extensors RVFD late but not early phase. The RVFD late phase may be used as an additional marker of muscle damage in trail running.
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Affiliation(s)
- Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università Degli Studi Di Milano, Milan, Italy
| | - Giorgio Varesco
- Université Jean Monnet Saint-Etienne, Inter-University Laboratory of Human Movement Biology, 42023, Saint-Etienne, France
- Laboratory Movement-Interactions-Performance, MIP Lab, UR 4334, Nantes Université, F-44000, Nantes, France
| | - Vianney Rozand
- Université Jean Monnet Saint-Etienne, Inter-University Laboratory of Human Movement Biology, 42023, Saint-Etienne, France
| | - Benjamin Cuinet
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Franche-Comté, Besançon, France
| | - Veronica Sansoni
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Instituto Ortopedico Galeazzi, 20157, Milan, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Instituto Ortopedico Galeazzi, 20157, Milan, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871, Poznań, Poland
| | - Gianluca Vernillo
- Department of Biomedical Sciences for Health, Università Degli Studi Di Milano, Milan, Italy.
| | - Laurent Mourot
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Franche-Comté, Besançon, France
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Bullock G, Stocks J, Feakins B, Alizadeh Z, Arundale A, Kluzek S. Comparing Self-Reported Running Distance and Pace With a Commercial Fitness Watch Data: Reliability Study. JMIR Form Res 2024; 8:e39211. [PMID: 38175696 PMCID: PMC10797502 DOI: 10.2196/39211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/31/2022] [Accepted: 09/19/2022] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND There is substantial evidence exploring the reliability of running distance self-reporting and GPS wearable technology, but there are currently no studies investigating the reliability of participant self-reporting in comparison to GPS wearable technology. There is also a critical sports science and medical research gap due to a paucity of reliability studies assessing self-reported running pace. OBJECTIVE The purpose of this study was to assess the reliability of weekly self-reported running distance and pace compared to a commercial GPS fitness watch, stratified by sex and age. These data will give clinicians and sports researchers insights into the reliability of runners' self-reported pace, which may improve training designs and rehabilitation prescriptions. METHODS A prospective study of recreational runners was performed. Weekly running distance and average running pace were captured through self-report and a fitness watch. Baseline characteristics collected included age and sex. Intraclass correlational coefficients were calculated for weekly running distance and running pace for self-report and watch data. Bland-Altman plots assessed any systemic measurement error. Analyses were then stratified by sex and age. RESULTS Younger runners reported improved weekly distance reliability (median 0.93, IQR 0.92-0.94). All ages demonstrated similar running pace reliability. Results exhibited no discernable systematic bias. CONCLUSIONS Weekly self-report demonstrated good reliability for running distance and moderate reliability for running pace in comparison to the watch data. Similar reliability was observed for male and female participants. Younger runners demonstrated improved running distance reliability, but all age groups exhibited similar pace reliability. Running pace potentially should be monitored through technological means to increase precision.
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Affiliation(s)
- Garrett Bullock
- Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Joanne Stocks
- University of Nottingham, Nottingham, United Kingdom
| | | | - Zahra Alizadeh
- Department of Sports Science and Exercise Medicine, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Stefan Kluzek
- University of Nottingham, Nottingham, United Kingdom
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Berger NJA, Best R, Best AW, Lane AM, Millet GY, Barwood M, Marcora S, Wilson P, Bearden S. Limits of Ultra: Towards an Interdisciplinary Understanding of Ultra-Endurance Running Performance. Sports Med 2024; 54:73-93. [PMID: 37751076 DOI: 10.1007/s40279-023-01936-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2023] [Indexed: 09/27/2023]
Abstract
Ultra-endurance running (UER) poses extreme mental and physical challenges that present many barriers to completion, let alone performance. Despite these challenges, participation in UER events continues to increase. With the relative paucity of research into UER training and racing compared with traditional endurance running distance (e.g., marathon), it follows that there are sizable improvements still to be made in UER if the limitations of the sport are sufficiently understood. The purpose of this review is to summarise our current understanding of the major limitations in UER. We begin with an evolutionary perspective that provides the critical background for understanding how our capacities, abilities and limitations have come to be. Although we show that humans display evolutionary adaptations that may bestow an advantage for covering large distances on a daily basis, these often far exceed the levels of our ancestors, which exposes relative limitations. From that framework, we explore the physiological and psychological systems required for running UER events. In each system, the factors that limit performance are highlighted and some guidance for practitioners and future research are shared. Examined systems include thermoregulation, oxygen delivery and utilisation, running economy and biomechanics, fatigue, the digestive system, nutritional and psychological strategies. We show that minimising the cost of running, damage to lower limb tissue and muscle fatigability may become crucial in UER events. Maintaining a sustainable core body temperature is critical to performance, and an even pacing strategy, strategic heat acclimation and individually calculated hydration all contribute to sustained performance. Gastrointestinal issues affect almost every UER participant and can be due to a variety of factors. We present nutritional strategies for different event lengths and types, such as personalised and evidence-based approaches for varying types of carbohydrate, protein and fat intake in fluid or solid form, and how to avoid flavour fatigue. Psychology plays a vital role in UER performance, and we highlight the need to be able to cope with complex situations, and that specific long and short-term goal setting improves performance. Fatigue in UER is multi-factorial, both physical and mental, and the perceived effort or level of fatigue have a major impact on the ability to continue at a given pace. Understanding the complex interplay of these limitations will help prepare UER competitors for the different scenarios they are likely to face. Therefore, this review takes an interdisciplinary approach to synthesising and illuminating limitations in UER performance to assist practitioners and scientists in making informed decisions in practice and applicable research.
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Affiliation(s)
- Nicolas J A Berger
- School of Health and Life Sciences, Teesside University, Middlesbrough, UK.
| | - Russ Best
- Centre for Sport Science and Human Performance, Wintec, Hamilton, New Zealand
| | - Andrew W Best
- Department of Biology, Massachusetts College of Liberal Arts, North Adams, MA, USA
| | - Andrew M Lane
- Faculty of Education Health and Wellbeing, University of Wolverhampton, Walsall, UK
| | - Guillaume Y Millet
- Univ Lyon, UJM Saint-Etienne, Inter-University Laboratory of Human Movement Biology, Saint Etienne, France
- Institut Universitaire de France (IUF), Paris, France
| | - Martin Barwood
- Department of Sport, Health and Nutrition, Leeds Trinity University Horsforth, Leeds, UK
| | - Samuele Marcora
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Patrick Wilson
- Department of Human Movement Sciences, Old Dominion University, Norfolk, VA, USA
| | - Shawn Bearden
- Department of Biological Sciences, Idaho State University, Pocatello, ID, USA
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Thuany M, Vieira D, Villiger E, Gomes TN, Weiss K, Nikolaidis PT, Sousa CV, Scheer V, Knechtle B. An analysis of the São Silvestre race between 2007-2021: An increase in participation but a decrease in performance. SPORTS MEDICINE AND HEALTH SCIENCE 2023; 5:277-282. [PMID: 38314049 PMCID: PMC10831388 DOI: 10.1016/j.smhs.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 01/22/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
This study aimed to investigate the trends of finishers in the São Silvestre race in Brazil, taking into account sex, age, and performance levels. A total of 31 775 runners (women, n = 13 847; men, n = 17 928), aged (45.2 ± 16.8) years, finishers in the São Silvestre race between 2007 and 2021, were considered in the present analysis. Data (event year, date of birth, sex, and race times) were downloaded from the official race website. The man-Whitney U test, Spearman correlation, and robust regression model were computed. Participation increased over time for both sexes. Regarding age groups, "31-40 years" (women) and "> 60 years" (men) were those with the highest number of finishers. We found a decrease in performance across the years (β = 2.45; p < 0.005), as well as significant differences in race times for both sexes (U = 42.844; p < 0.001), with men presenting better performances than women. Over time, it was observed an increase in the performance gap between the sexes, but in general, the performance decreased (β = 1.76; p < 0.001). Stakeholders should consider improving the strategies to improve women and young people's participation in running events.
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Affiliation(s)
- Mabliny Thuany
- CIFI2D, Faculty of Sports, University of Porto, 4200-450, Porto, Portugal
| | - Douglas Vieira
- Post-Graduation Program of Physical Education, Federal University of Sergipe, São Cristóvão-SE, Brazil
| | - Elias Villiger
- Institute of Primary Care, University of Zurich, 8091, Zurich, Switzerland
| | - Thayse Natacha Gomes
- Post-Graduation Program of Physical Education, Federal University of Sergipe, São Cristóvão-SE, Brazil
- Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland
| | - Katja Weiss
- Institute of Primary Care, University of Zurich, 8091, Zurich, Switzerland
| | - Pantelis T. Nikolaidis
- School of Health and Caring Sciences, University of West Attica, Athens, 12243, Athens, Greece
| | - Caio Victor Sousa
- Bouve College of Health Sciences, Northeastern University, Boston, MA, 02115, USA
| | - Volker Scheer
- Ultra Sports Science Foundation, 109 Boulevard de l'Europe, 69310, Pierre-Benite, France
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, 8091, Zurich, Switzerland
- Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland
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Fariod M, Olher RR, Sousa CV, Scheer V, Cuk I, Nikolaidis PT, Thuany M, Weiss K, Knechtle B. Pacing Variation in Multistage Ultramarathons: Internet-Based Cross-Sectional Study. JMIR Form Res 2023; 7:e46650. [PMID: 37610796 PMCID: PMC10483293 DOI: 10.2196/46650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Ultramarathon running is the most popular ultraendurance competition in terms of the number of races and runners competing annually worldwide; however, no study has compared pacing and performance over a long period. OBJECTIVE This study analyzes the pacing of successful finishers and nonfinishers in multistage ultramarathons worldwide. METHODS A total of 4079 athletes (men=3288; women=791) competing in 99 multistage ultramarathon events from 1983 to 2021 were analyzed, including the number of participants, age, gender, rank, and running speed of successful finishers. RESULTS The results showed a significant increase in the number of events (n=338) and a significant increase in the number of finishers and nonfinishers (n=5575) in the ultramarathons worldwide during this period. The general linear models (GLMs) of pacing variation showed nonsignificant effects for gender (F1,36.2=2.5; P=.127; ηp2=0.063) and age group (F10,10=0.6; P=.798; ηp2=0.367), but it showed a significant interaction (gender × age) effect (F10,2689=2.3; P=.008; ηp2=0.009). Post hoc analyses showed that men have a higher pacing variation than women in the under 30 years (U30), U35, U45, and U50 groups. Additionally, the fastest women's age group (U35) had the lowest pacing variation. The GLM of pacing variation by gender and event distance showed significant effects for both gender (F1,3=18.5; P<.001; ηp2=0.007) and distance (F2,3=20.1; P<.001; ηp2=0.015). Post hoc analyses showed a growing pacing variation with increasing race distance for both men and women. In addition, men had a higher variation in long events. Furthermore, there was a significant main effect for both genders (F1,3=33.7; P<.001; ηp2=0.012) and rank (F1,3=136.6; P<.001; ηp2=0.048) on performance, with men being faster than women. Pacing varied greatly due to gender (F1,3=4.0; P=.047; ηp2=0.001), with a lower (ie, more even) pacing variation for male athletes in the top 3 finishers. Male nonfinishers showed a higher performance than female nonfinishers (F1,1340=25.6; P<.001), and no difference was identified for pacing variation (F1,789=1.5; P=.228) based on gender. In addition, a weak but significant correlation (r=-0.130; P<.001) was identified between the average running speed and pacing variation for both female and male nonfinishers. CONCLUSIONS In summary, multistage ultramarathon competitions showed an increasing number of competitors and a higher performance challenge. Men have a higher pacing (ie, less even) variation than women, especially observed in longer events. A higher pacing variation was associated with lower performance for men, women, and nonfinishers.
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Affiliation(s)
- Mielad Fariod
- Department of Orthopedic, Traumatology and Reconstructive Surgery, Klinikum Frankfurt-Höchst, Frankfurt, Germany
| | - Rafael Reis Olher
- Department of Physical Education, University Center of Central Plateau Apparecido dos Santos, Brasilia, Brazil
| | - Caio Victor Sousa
- Health and Human Sciences, Loyola Marymount University, Los Angeles, CA, United States
| | - Volker Scheer
- Ultra Sports Science Foundation, Pierre-Benite, France
| | - Ivan Cuk
- Faculty of Sport and Physical Education, University of Belgrade, Belgrade,
| | | | | | - Katja Weiss
- Institute of Primary Care, University Hospital Zurich, Zurich, Switzerland
| | - Beat Knechtle
- Medbase St Gallen Am Vadianplatz, St Gallen, Switzerland
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Kosendiak A, Król M, Ligocka M, Kepinska M. Eating habits and nutritional knowledge among amateur ultrarunners. Front Nutr 2023; 10:1137412. [PMID: 37497055 PMCID: PMC10365969 DOI: 10.3389/fnut.2023.1137412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/23/2023] [Indexed: 07/28/2023] Open
Abstract
Introduction Many studies concerning the diet of physically active people refer to individuals who run; however, the importance of nutrition in professional and amateur sports plays a different role. This study aimed to evaluate the nutritional behavior and knowledge of amateur ultrarunners. This study involved a group of 308 respondents (89 women and 219 men) aged 18 -65. It investigated the influence of the level of knowledge about nutrition, gender, education, and smoking on dietary food habits and eating frequency. Methods The KomPAN questionnaire was used to determine the dietary habits, diet quality, lifestyle, and nutrition knowledge of ultramarathon runners. The nutrition knowledge influenced the eating habits and frequency of specific meals expressed as the Healthy Diet Index-10 (HDI-10) and Unhealthy Diet Index-14 (UDI-14). Results In women with sufficient knowledge about nutrition, lower HDI-10 scores were observed compared to those with a good level of knowledge, while men did not show a similar relationship. However, the effect of smoking on the frequency of food intake in men was noted. Interestingly, male smokers had a lower UDI-14 score than non-smokers. Depending on the level of knowledge, female and male ultrarunners more often or less frequently used selected food products. In turn, no effect of education on the frequency of consumption of specific foods was observed. Discussion Such different results are most likely caused by the specificity of the study group, which consisted of amateur runners. Additionally, the study looked at general eating habits, not those employed when preparing for marathons. In the future, more respondents should be surveyed, also taking into account nutrition during training.
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Affiliation(s)
- Aureliusz Kosendiak
- Department of Physical Education and Sport, Wroclaw Medical University, Wrocław, Poland
| | - Magdalena Król
- Department of Pharmaceutical Biochemistry, Division of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Wrocław, Poland
| | - Marta Ligocka
- Students Scientific Association, Division of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Wrocław, Poland
| | - Marta Kepinska
- Department of Pharmaceutical Biochemistry, Division of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Wrocław, Poland
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Jastifer JR, Hoffman MD. The Foot and Ankle in Ultramarathon Runners: Results of the Ultrarunners Longitudinal TRAcking (ULTRA) Study. FOOT & ANKLE ORTHOPAEDICS 2023; 8:24730114231198832. [PMID: 37767007 PMCID: PMC10521274 DOI: 10.1177/24730114231198832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023] Open
Abstract
Background The foot and ankle play a critical role in ultramarathon running. Because foot and ankle injuries are the most common location of injury in this group, proper care is essential for prevention. In this sport, small issues can become big problems over such long distances, and understanding the preventative measures taken by ultramarathon runners may provide insight for other athletes looking to avoid similar problems. The purpose of this study was to examine the routine and preventative care of the foot and ankle, as well as injury rates, in this group of high-risk athletes. Methods The Ultrarunners Longitudinal TRAcking (ULTRA) Study is the largest known prospective longitudinal study of ultramarathon runners. In this portion of the study, participants reported general health status, running behavior and performance, as well as foot and ankle care, injuries, stretching frequency, and shoewear. Results A total of 734 ultramarathon runners participated in the study. This group ran a median of 40.2 km per week. Overall, 71.2% of active ultramarathon runners reported a foot or ankle injury in the previous 12 months. The most common injuries reported were plantar fasciitis (36.3%), Achilles tendinitis (24.0%), nonspecific foot pain (14.0%), and stress fractures (13.4%). Sit and reach flexibility test showed that 63.7% of runners could not reach past their toes. There were no significant correlations for sit and reach flexibility or stretching frequency with injury rate. Conclusion The high prevalence of foot and ankle injuries in ultramarathon runners does not appear to be influenced by arch type, foot strike pattern, orthotic usage, stretching behavior, or actual flexibility. A high percentage of the study runners used comfort as a shoe selection method, independent of alignment or foot strike pattern. These findings guide the clinician in shared decision making with runners about routine care, including injury prevention and shoe selection. Level of Evidence Level II, prospective study.
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Affiliation(s)
- James R. Jastifer
- Department of Orthopedic Surgery, Ascension Borgess Hospital, Kalamazoo, MI, USA
- Department of Orthopaedic Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI, USA
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Zając B, Olszewski M, Mika A, Maciejczyk M. Do Highly Trained Mountain Runners Differ from Recreational Active Non-Runners on Range of Motion and Strength in the Hip and Ankle as Well as Postural Control? J Clin Med 2023; 12:jcm12072715. [PMID: 37048798 PMCID: PMC10095293 DOI: 10.3390/jcm12072715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
The rules governing mountain running force athletes to implement into their training programmes uphill and downhill running on unstable surfaces, which are demanding for hip and ankle as well as for the postural control system. The aim of the present cross-sectional study was to compare highly trained mountain runners (MR) and recreational active non-runners (NR) on range of motion (ROM) and strength in the hip and ankle, as well as dynamic postural control. Thirty MR and thirty-two NR were included in the study. ROM was assessed using a digital inclinometer. Strength was measured using a hand-held dynamometer. Postural control was evaluated using the lower quarter Y-balance test (YBT-LQ). The results showed that MR, in relation to NR, had statistically significant smaller hip external rotation ROM (p = 0.007), lower hip external rotator (p = 0.006) and extensor (p = 0.023) strength and greater normalised anterior reach in the YBT-LQ (p = 0.028). Mountain running training may reduce hip external rotation ROM as well as hip external rotator and extensor strength. Moreover, such training may improve postural control. MR should implement exercises targeted at developing hip ROM and strength. Furthermore, it seems that mountain running training may be a good way to improve postural control.
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Affiliation(s)
- Bartosz Zając
- Laboratory of Functional Diagnostics, Central Scientific and Research Laboratory, University of Physical Education in Kraków, 31-571 Kraków, Poland
| | - Maciej Olszewski
- Doctoral School, University of Physical Education in Kraków, 31-571 Kraków, Poland
| | - Anna Mika
- Institute of Clinical Rehabilitation, University of Physical Education in Kraków, 31-571 Kraków, Poland
| | - Marcin Maciejczyk
- Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education in Kraków, 31-571 Kraków, Poland
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11
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Skroce K, Bettega S, D’Emanuele S, Boccia G, Schena F, Tarperi C. Flat versus Simulated Mountain Trail Running: A Multidisciplinary Comparison in Well-Trained Runners. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5189. [PMID: 36982098 PMCID: PMC10049634 DOI: 10.3390/ijerph20065189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
This paper compares cardiopulmonary and neuromuscular parameters across three running aerobic speeds in two conditions that differed from a treadmill's movement: flat condition (FC) and unpredictable roll variations similar to mountain trail running (URV). Twenty well-trained male runners (age 33 ± 8 years, body mass 70.3 ± 6.4 kg, height 1.77 ± 0.06 m, V˙O2max 63.8 ± 7.2 mL·kg-1·min-1) voluntarily participated in the study. Laboratory sessions consisted of a cardiopulmonary incremental ramp test (IRT) and two experimental protocols. Cardiopulmonary parameters, plasma lactate (BLa-), cadence, ground contact time (GT) and RPE values were assessed. We also recorded surface electromyographic (sEMG) signals from eight lower limb muscles, and we calculated, from the sEMG envelope, the amplitude and width of peak muscle activation for each step. Cardiopulmonary parameters were not significantly different between conditions (V˙O2: p = 0.104; BLa-: p = 0.214; HR: p = 0.788). The amplitude (p = 0.271) and width (p = 0.057) of sEMG activation peaks did not change between conditions. The variability of sEMG was significantly affected by conditions; indeed, the coefficient of variation in peak amplitude (p = 0.003) and peak width (p < 0.001) was higher in URV than in FC. Since the specific physical demands of running can differ between surfaces, coaches should resort to the use of non-traditional surfaces, emphasizing specific surface-related motor tasks that are normally observed in natural running environments. Seeing that the variability of muscle activations was affected, further studies are required to better understand the physiological effects induced by systematic surface-specific training and to define how variable-surface activities help injury prevention.
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Affiliation(s)
- Kristina Skroce
- Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, 37131 Verona, Italy
| | - Simone Bettega
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, 37131 Verona, Italy
| | - Samuel D’Emanuele
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, 37131 Verona, Italy
| | - Gennaro Boccia
- Department of Clinical and Biological Sciences, University of Turin, 10124 Turin, Italy
| | - Federico Schena
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, 37131 Verona, Italy
| | - Cantor Tarperi
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, 37131 Verona, Italy
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12
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Coquart JB. Prediction of performance in a 100-km run from a simple equation. PLoS One 2023; 18:e0279662. [PMID: 36862733 PMCID: PMC9980800 DOI: 10.1371/journal.pone.0279662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/07/2022] [Indexed: 03/03/2023] Open
Abstract
This study aimed to identify predictive variables of performance for a 100-km race (Perf100-km) and develop an equation for predicting this performance using individual data, recent marathon performance (Perfmarathon), and environmental conditions at the start of the 100-km race. All runners who had performed official Perfmarathon and Perf100-km in France, both in 2019, were recruited. For each runner, gender, weight, height, body mass index (BMI), age, the personal marathon record (PRmarathon), date of the Perfmarathon and Perf100-km, and environmental conditions during the 100-km race (i.e., minimal and maximal air temperatures, wind speed, total amount of precipitation, relative humidity and barometric pressure) were collected. Correlations between the data were examined, and prediction equations were then developed using stepwise multiple linear regression analyses. Significant bivariate correlations were found between Perfmarathon (p<0.001, r = 0.838), wind speed (p<0.001, r = -0.545), barometric pressure (p<0.001, r = 0.535), age (p = 0.034, r = 0.246), BMI (p = 0.034, r = 0.245), PRmarathon (p = 0.065, r = 0.204) and Perf100-km in 56 athletes The, 2 prediction equations with larger sample (n = 591) were developed to predict Perf100-km, one including Perfmarathon, wind speed and PRmarathon (model 1, r² = 0.549; standard errors of the estimate, SEE = 13.2%), and the other including only Perfmarathon and PRmarathon (model 2, r² = 0.494; SEE = 14.0%). Perf100-km can be predicted with an acceptable level of accuracy from only recent Perfmarathon and PRmarathon, in amateur athletes who want to perform a 100 km for the first time.
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Affiliation(s)
- Jeremy B. Coquart
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d’Opale, ULR 7369—URePSSS—Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
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13
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Thuany M, Weiss K, Villiger E, Scheer V, Ouerghi N, Gomes TN, Knechtle B. A macro to micro analysis to understand performance in 100-mile ultra-marathons worldwide. Sci Rep 2023; 13:1415. [PMID: 36697457 PMCID: PMC9876921 DOI: 10.1038/s41598-023-28398-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
The purposes of this study were (i) to describe differences in participation in 100-mile ultra-marathons by continent; (ii) to investigate differences in performance between continents; and (iii) to identify the fastest runners by continent and country. Data from 148,169 athletes (119,408 men), aged 18-81 years, and finishers in a 100-miles ultra-marathon during 1870-2020 were investigated. Information about age, gender, origin, performance level (top three, top 10, top 100) was obtained. Kruskal-Wallis tests and linear regressions were performed. Athletes were mostly from America and Europe. A macro-analysis showed that the fastest men runners were from Africa, while the fastest women runners were from Europe and Africa. Women from Sweden, Hungary and Russia presented the best performances in the top three, top 10 and top 100. Men from Brazil, Russia and Lithuania were the fastest. The lowest performance and participation were observed for runners from Asia. In summary, in 100-miles ultra-marathon running, the majority of athletes were from America, but for both sexes and performance levels, the fastest runners were from Africa. On a country level, the fastest women were from Sweden, Hungary and Russia, while the fastest men were from Brazil, Russia and Lithuania.
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Affiliation(s)
- Mabliny Thuany
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal
| | - Katja Weiss
- Medbase St. Gallen Am Vadianplatz, Vadianstrasse 26, 9001, St. Gallen, Switzerland.,Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Elias Villiger
- Klinik Für Innere Medizin, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Volker Scheer
- Ultra Sports Science Foundation, 109 Boulevard de L'Europe, 69310, Pierre-Benite, France
| | - Nejmeddine Ouerghi
- University of Jendouba, High Institute of Sport and Physical Education of Kef, UR13JS01, 7100, Kef, Tunisia.,Faculty of Medicine of Tunis, University of Tunis El Manar, Rabta Hospital, LR99ES11, 1007, Tunis, Tunisia
| | - Thayse Natacha Gomes
- Post-Graduation Program of Physical Education, Department of Physical Education, Federal University of Sergipe, São Cristóvão Sergipe, 49100-000, Brazil.,Department of Physical Education and Sport Sciences, University of Limerick, Limerick, V94T9PX, Ireland
| | - Beat Knechtle
- Medbase St. Gallen Am Vadianplatz, Vadianstrasse 26, 9001, St. Gallen, Switzerland. .,Institute of Primary Care, University of Zurich, Zurich, Switzerland.
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14
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Honert EC, Harrison K, Feeney D. Evaluating footwear "in the wild": Examining wrap and lace trail shoe closures during trail running. Front Sports Act Living 2023; 4:1076609. [PMID: 36685056 PMCID: PMC9853429 DOI: 10.3389/fspor.2022.1076609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/14/2022] [Indexed: 01/09/2023] Open
Abstract
Trail running participation has grown over the last two decades. As a result, there have been an increasing number of studies examining the sport. Despite these increases, there is a lack of understanding regarding the effects of footwear on trail running biomechanics in ecologically valid conditions. The purpose of our study was to evaluate how a Wrap vs. Lace closure (on the same shoe) impacts running biomechanics on a trail. Thirty subjects ran a trail loop in each shoe while wearing a global positioning system (GPS) watch, heart rate monitor, inertial measurement units (IMUs), and plantar pressure insoles. The Wrap closure reduced peak foot eversion velocity (measured via IMU), which has been associated with fit. The Wrap closure also increased heel contact area, which is also associated with fit. This increase may be associated with the subjective preference for the Wrap. Lastly, runners had a small but significant increase in running speed in the Wrap shoe with no differences in heart rate nor subjective exertion. In total, the Wrap closure fit better than the Lace closure on a variety of terrain. This study demonstrates the feasibility of detecting meaningful biomechanical differences between footwear features in the wild using statistical tools and study design. Evaluating footwear in ecologically valid environments often creates additional variance in the data. This variance should not be treated as noise; instead, it is critical to capture this additional variance and challenges of ecologically valid terrain if we hope to use biomechanics to impact the development of new products.
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Affiliation(s)
- Eric C. Honert
- Performance Fit Laboratory, BOA Technology Inc., Denver, CO, United States
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15
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Using Wet Bulb Globe Temperature and Physiological Equivalent Temperature as Predicative Models of Medical Stress in a Marathon: Analysis of 30 Years of Data From the Twin Cities Marathon. Clin J Sport Med 2023; 33:45-51. [PMID: 36205927 DOI: 10.1097/jsm.0000000000001079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/24/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVES : Assess the relationships between wet bulb globe temperature (WBGT) and physiologic equivalent temperature (PET) at the start of a northern latitude marathon and their associations with medical stress and transfers to the emergency room (ER) when the race environment is unexpectedly warm, and participants are not acclimatized. DESIGN : Retrospective review. SETTING : Twin Cities Marathon from 1990 to 2019. PARTICIPANTS : Runners competing in the Twin Cities Marathon. INDEPENDENT VARIABLES : Start WBGT (prospectively collected) and PET (retrospectively calculated). MAIN OUTCOME MEASURES : Marathon race starters and finishers and race day medical data (eg, medical stress, number of medical encounters, and number of ER visits). RESULTS : The mean WBGT was 7.4°C (range -1.7°C to 22.2°C), and the meant PET was 5.2°C (range -16.7°C to 25.9°C). PET was not determined to be a significant predictor of medical stress (P = 0.71); however, a significant quadratic association between WBGT and medical stress was found (P = 0.006). WBGT (P = 0.002), but not PET (P = 0.07), was a significant predictor of the number of ER visits. CONCLUSIONS Start WBGT was a better predictor of medical stress and ER visits than PET at the Twin Cities Marathon over a 30-year period. The start WBGT may be a better tool to predict race day environment medical safety.
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16
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Musculoeskeletal injuries and illnesses in the Spanish team the month prior to the WMTRC 2022. APUNTS SPORTS MEDICINE 2023. [DOI: 10.1016/j.apunsm.2023.100405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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17
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Tiller NB, Wheatley-Guy CM, Fermoyle CC, Robach P, Ziegler B, Gavet A, Schwartz JC, Taylor BJ, Constantini K, Murdock R, Johnson BD, Stewart GM. Sex-Specific Physiological Responses to Ultramarathon. Med Sci Sports Exerc 2022; 54:1647-1656. [PMID: 35653262 DOI: 10.1249/mss.0000000000002962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Despite a growing body of literature on the physiological responses to ultramarathon, there is a paucity of data in females. This study assessed the female physiological response to ultramarathon and compared the frequency of perturbations to a group of race- and time-matched males. METHODS Data were collected from 53 contestants of an ultramarathon trail race at the Ultra-Trail du Mont-Blanc (UTMB®) in 2018/19. Before and within 2 h of the finish, participants underwent physiological assessments, including blood sampling for biomarkers (creatine kinase-MB isoenzyme [CK-MB], cardiac troponin I [cTnI], brain natriuretic peptide [BNP], and creatinine [Cr]), pulmonary function testing (spirometry, exhaled NO, diffusing capacities, and mouth pressures), and transthoracic ultrasound (lung comet tails, cardiac function). Data from eight female finishers (age = 36.6 ± 6.9 yr; finish time = 30:57 ± 11:36 h:min) were compared with a group of eight time-matched males (age = 40.3 ± 8.3 yr; finish time = 30:46 ± 10:32 h:min). RESULTS Females exhibited significant pre- to postrace increases in BNP (25.8 ± 14.6 vs 140.9 ± 102.7 pg·mL -1 ; P = 0.007) and CK-MB (3.3 ± 2.4 vs 74.6 ± 49.6 IU·L -1 ; P = 0.005), whereas males exhibited significant pre- to postrace increases in BNP (26.6 ± 17.5 vs 96.4 ± 51.9 pg·mL -1 ; P = 0.002), CK-MB (7.2 ± 3.9 vs 108.8 ± 37.4 IU·L -1 ; P = 0.002), and Cr (1.06 ± 0.19 vs 1.23 ± 0.24 mg·dL -1 ; P = 0.028). Lung function declined in both groups, but males exhibited additional reductions in lung diffusing capacities (DL CO = 34.4 ± 5.7 vs 29.2 ± 6.9 mL⋅min -1 ⋅mm Hg -1 , P = 0.004; DL NO = 179.1 ± 26.2 vs 152.8 ± 33.4 mL⋅min -1 ⋅mm Hg -1 , P = 0.002) and pulmonary capillary blood volumes (77.4 ± 16.7 vs 57.3 ± 16.1 mL; P = 0.002). Males, but not females, exhibited evidence of mild postrace pulmonary edema. Pooled effect sizes for within-group pre- to postrace changes, for all variables, were generally larger in males versus females ( d = 0.86 vs 0.63). CONCLUSIONS Ultramarathon negatively affects a range of physiological functions but generally evokes more frequent perturbations, with larger effect sizes, in males compared to females with similar race performances.
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Affiliation(s)
- Nicholas B Tiller
- Institute of Respiratory Medicine and Exercise Physiology, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | | | | | - Paul Robach
- Ecole Nationale des Sports de Montagne, Chamonix, FRANCE
| | - Briana Ziegler
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
| | - Alice Gavet
- Ecole Nationale des Sports de Montagne, Chamonix, FRANCE
| | - Jesse C Schwartz
- Department of Cardiovascular Diseases, Mayo Clinic, Scottsdale, AZ
| | - Bryan J Taylor
- Department of Cardiovascular Diseases, Mayo Clinic, Jacksonville, FL
| | - Keren Constantini
- School of Public Health, Sackler Faculty of Medicine, and Sylvan Adams Sports Institute, Tel-Aviv University, ISRAEL
| | | | - Bruce D Johnson
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
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18
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Cassirame J, Godin A, Chamoux M, Doucende G, Mourot L. Physiological Implication of Slope Gradient during Incremental Running Test. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12210. [PMID: 36231513 PMCID: PMC9566275 DOI: 10.3390/ijerph191912210] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Uphill running induces a higher physiological demand than level conditions. Although many studies have investigated this locomotion from a psychological point of view, there is no clear position on the effects of the slope on the physiological variables during an incremental running test performed on a slope condition. The existing studies have heterogeneous designs with different populations or slopes and have reported unclear results. Some studies observed an increase in oxygen consumption, whereas it remained unaffected in others. The aim of this study is to investigate the effect of a slope on the oxygen consumption, breathing frequency, ventilation and heart rate during an incremental test performed on 0, 15, 25 and 40% gradient slopes by specialist trail runners. The values are compared at the first and second ventilatory threshold and exhaustion. A one-way repeated measures ANOVA, with a Bonferroni post-hoc analysis, was used to determine the effects of a slope gradient (0, 15, 25 and 40%) on the physiological variables. Our study shows that all the variables are not affected in same way by the slopes during the incremental test. The heart rate and breathing frequency did not differ from the level condition and all the slope gradients at the ventilatory thresholds or exhaustion. At the same time, the ventilation and oxygen consumption increased concomitantly with the slope (p < 0.001) in all positions. The post-hoc analysis highlighted that the ventilation significantly increased between each successive gradient (0 to 15%, 15% to 25% and 25% to 40%), while the oxygen consumption stopped increasing at the 25% gradient. Our results show that the 25 and 40% gradient slopes allow the specialist trail runners to reach the highest oxygen consumption level.
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Affiliation(s)
- Johan Cassirame
- Laboratory Culture Sport Health and Society (C3S−UR 4660), Sport and Performance Department, University of Bourgogne Franche-Comte, 25000 Besançon, France
- EA7507, Laboratoire Performance, Santé, Métrologie, Société, 51100 Reims, France
- Mtraining, R&D Division, 25480 Ecole-Valentin, France
| | - Antoine Godin
- EA3920-Prognostic Markers and Regulatory Factors of Heart and Vascular Diseases, and Exercise Performance, Health, Innovation Platform, University Bourgogne Franche-Comté, 25000 Besançon, France
| | - Maxime Chamoux
- Laboratoire Interdisciplinaire Performance Santé en Environnement de Montagne (LIPSEM), UR-4604, Université de Perpignan Via Domitia, 7 Avenue Pierre de Coubertin, 66120 Font-Romeu, France
| | - Gregory Doucende
- Laboratoire Interdisciplinaire Performance Santé en Environnement de Montagne (LIPSEM), UR-4604, Université de Perpignan Via Domitia, 7 Avenue Pierre de Coubertin, 66120 Font-Romeu, France
| | - Laurent Mourot
- EA3920-Prognostic Markers and Regulatory Factors of Heart and Vascular Diseases, and Exercise Performance, Health, Innovation Platform, University Bourgogne Franche-Comté, 25000 Besançon, France
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19
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Varesco G, Coratella G, Rozand V, Cuinet B, Lombardi G, Mourot L, Vernillo G. Downhill running affects the late but not the early phase of the rate of force development. Eur J Appl Physiol 2022; 122:2049-2059. [PMID: 35790580 PMCID: PMC9381441 DOI: 10.1007/s00421-022-04990-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 05/11/2022] [Indexed: 11/25/2022]
Abstract
Purpose This study aimed to evaluate the acute changes in the knee extensors maximum voluntary isometric contraction force (MVIC), rate of force development (RFD), and rate of EMG rise (RER) following a bout of downhill running. Methods MVIC and RFD at 0–50, 50–100, 100–200, and 0–200 ms were determined in thirteen men (22 ± 2 yr) before and after 30 min of downhill running (speed: 10 km h−1; slope: − 20%). Vastus lateralis maximum EMG (EMGmax) and RER at 0–30, 0–50, and 0–75 ms were also recorded. Results MVIC, RFD0–200, and EMGmax decreased by ~ 25% [Cohen’s d = − 1.09 (95% confidence interval: − 1.88/− 0.24)], ~ 15% [d = − 0.50 (− 1.26/0.30)], and ~ 22% [d = − 0.37 (− 1.13/0.42)] (all P < 0.05), respectively. RFD100–200 was also reduced [− 25%; d = − 0.70 (− 1.47/0.11); P < 0.001]. No change was observed at 0–50 ms and 50–100 ms (P ≥ 0.05). RER values were similar at each time interval (all P > 0.05). Conclusion Downhill running impairs the muscle capacity to produce maximum force and the overall ability to rapidly develop force. No change was observed for the early phase of the RFD and the absolute RER, suggesting no alterations in the neural mechanisms underlying RFD. RFD100–200 reduction suggests that impairments in the rapid force-generating capacity are located within the skeletal muscle, likely due to a reduction in muscle–tendon stiffness and/or impairments in the muscle contractile apparatus. These findings may help explain evidence of neuromuscular alterations in trail runners and following prolonged duration races wherein cumulative eccentric loading is high.
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Affiliation(s)
- Giorgio Varesco
- Inter-University Laboratory of Human Movement Biology (EA 7424), UJM-Saint-Etienne, Université de Lyon, 42023, Saint-Etienne, France
| | - Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Building 2, via G. Colombo 71, 20133, Milan, Italy
| | - Vianney Rozand
- Inter-University Laboratory of Human Movement Biology (EA 7424), UJM-Saint-Etienne, Université de Lyon, 42023, Saint-Etienne, France
| | - Benjamin Cuinet
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Bourgogne Franche-Comté, 25000, Besançon, France
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Orthopedic Institute Galeazzi, 20161, Milan, Italy.,Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871, Poznań, Poland
| | - Laurent Mourot
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Bourgogne Franche-Comté, 25000, Besançon, France.,Division for Physical Education, Tomsk Polytechnic University, Tomsk Oblast, 634050, Russia
| | - Gianluca Vernillo
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Building 2, via G. Colombo 71, 20133, Milan, Italy.
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20
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de Souza RF, Santos MMS, Thuany M, dos Santos Silva D, de Jesus Alves MD, Oliveira DPM, Knechtle B, Silva AF, Clemente FM, Nobari H, Aidar FJ, Badicu G, Cataldi S, Greco G. Ultramarathon Evaluation above 180 km in relation to Peak Age and Performance. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1036775. [PMID: 37284504 PMCID: PMC10241566 DOI: 10.1155/2022/1036775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/13/2022] [Accepted: 07/27/2022] [Indexed: 10/25/2023]
Abstract
BACKGROUND Ultramarathons with distances over 180 km might lead to different results regarding participation, performance, and age compared to shorter runs of 50 and 100 km. OBJECTIVE To evaluate ultramarathons with distances above 180 km in relation to runners' peak age and performance. METHOD s. Verification of the quantity of competitions in runs over 180 km by continents in the period 2000 to 2020 and evaluation of the individual results of 13,300 athletes after 2010. RESULTS Europe stood out with the largest number of organized events, followed by Asia and North America. The age peak performance (PP) in men and women averaged 45 years old with relationship between sex × years (F = 3.612, p < 0.001; η2 = 0.003). Men accounted for more than 80% of the runners and showed a reduction in PP from 2015 onwards (p < 0.001). Competitions between 180 and 240 km were the most frequent, particularly after 2016, surpassing the number of marathons over 360 km (p < 0.001). Men and women showed higher velocity in distances (p < 0.001) from 180 to 240 km when compared to 241 to 300 k m, 301 to 360 km, and >360 km courses. CONCLUSIONS The decade between 2010 and 2020 showed an increase in the number of Ultramarathon running events. Europe had the highest number. Women had low participation. Performance progression fell, a fact associated with an increase in the number of participants and not specifically related to a decline in athletic performance over the years.
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Affiliation(s)
- Raphael Fabricio de Souza
- Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil
- Graduate Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, UFS, Sergipe, Brazil
| | | | - Mabliny Thuany
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal
| | - Devisson dos Santos Silva
- Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil
- Graduate Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, UFS, Sergipe, Brazil
| | - Micael Deivison de Jesus Alves
- Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil
- Graduate Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, UFS, Sergipe, Brazil
| | | | - Beat Knechtle
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland
| | - Ana Filipa Silva
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
| | - Hadi Nobari
- Department of Physiology, School of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran
| | - Felipe J. Aidar
- Department of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Brazil
- Graduate Program of Physical Education, Federal University of Sergipe (UFS), São Cristóvão, Sergipe, Brazil
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, Federal University of Sergipe, UFS, Sergipe, Brazil
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, Faculty of Physical Education and Mountain Sports, Transilvania University of Brasov, 500068 Brasov, Romania
| | - Stefania Cataldi
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy
| | - Gianpiero Greco
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Study of Bari, 70124 Bari, Italy
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Burtscher J, Vanderriele PE, Legrand M, Predel HG, Niebauer J, O’Keefe JH, Millet GP, Burtscher M. Could Repeated Cardio-Renal Injury Trigger Late Cardiovascular Sequelae in Extreme Endurance Athletes? Sports Med 2022; 52:2821-2836. [DOI: 10.1007/s40279-022-01734-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2022] [Indexed: 12/17/2022]
Abstract
AbstractRegular exercise confers multifaceted and well-established health benefits. Yet, transient and asymptomatic increases in markers of cardio-renal injury are commonly observed in ultra-endurance athletes during and after competition. This has raised concerns that chronic recurring insults could cause long-term cardiac and/or renal damage. Indeed, extreme endurance exercise (EEE) over decades has sometimes been linked with untoward cardiac effects, but a causal relation with acute injury markers has not yet been established. Here, we summarize the current knowledge on markers of cardiac and/or renal injury in EEE athletes, outline the possible interplay between cardiac and kidney damage, and explore the roles of various factors in the development of potential exercise-related cardiac damage, including underlying diseases, medication, sex, training, competition, regeneration, mitochondrial dysfunction, oxidative stress, and inflammation. In conclusion, despite the undisputed health benefits of regular exercise, we speculate, based on the intimate link between heart and kidney diseases, that in rare cases excessive endurance sport may induce adverse cardio-renal interactions that under specific, hitherto undefined conditions could result in persistent cardiac damage. We highlight future research priorities and provide decision support for athletes and clinical consultants who are seeking safe strategies for participation in EEE training and competition.
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Foreman NA, Lee EJ, Lundstrom CJ. Assessment of a Treadmill Speed Incline Conversion Chart: A Validation Study. Int J Sports Physiol Perform 2022; 17:1030-1036. [PMID: 35299154 PMCID: PMC10707652 DOI: 10.1123/ijspp.2021-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/23/2022] [Accepted: 01/27/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE To investigate the validity of a treadmill speed incline conversion chart using physiological and subjective measures. METHODS Two groups of experienced runners (SLOW and FAST: divided based on their easy run pace) ran 6 speed incline combinations for 5 minutes each. Stages were equivalent according to the HillRunner.com chart, and stage order was randomized. Due to limitations of the chart, SLOW (n = 11) ran at inclines up to 4%, while FAST (n = 22) ran at inclines up 10%. Oxygen consumption (VO2), respiratory exchange ratio, heart rate, blood lactate, overall rating of perceived exertion (RPE), and leg RPE were measured for each stage. VO2 was compared against the VO2 predicted by the American College of Sports Medicine (ACSM) equation (ACSM VO2). Repeated-measures analysis of variance was used to detect differences between stages and inclines, and Hedges g was used as a measure of effect size. RESULTS Pooled results (0%-4%, N = 33) showed no incline effect on VO2, respiratory exchange ratio, heart rate, blood lactate, or RPE (P > .05; ηp2=.198), validating the chart at these inclines. At or above 6%, meaningful and significant increases occur in VO2 (g > 0.9, P < .05), with increases in heart rate, blood lactate, and leg RPE at higher inclines. ACSM VO2 underestimated oxygen consumption at all inclines up to 8% (P < .05) but not at 10% (45.9 [4.0] vs 46.7 [2.4] mL·kg-1·min-1; P = .186). CONCLUSION The HillRunner.com chart is only valid at or below 4%. At higher inclines, supposedly equivalent stages result in increased exercise intensity. ACSM VO2 underestimates VO2 in trained runners at inclines up to 8%.
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Schrøder Jakobsen L, Madeleine P, Pavailler S, Lefebvre F, Giandolini M. The effects of unstable surface conditions on lower limb biomechanical parameters during running. J Biomech 2022; 141:111214. [DOI: 10.1016/j.jbiomech.2022.111214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 12/01/2022]
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Khassetarash A, Vernillo G, Krüger RL, Edwards WB, Millet GY. Neuromuscular, biomechanical, and energetic adjustments following repeated bouts of downhill running. JOURNAL OF SPORT AND HEALTH SCIENCE 2022; 11:319-329. [PMID: 34098176 PMCID: PMC9189713 DOI: 10.1016/j.jshs.2021.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/09/2021] [Accepted: 04/07/2021] [Indexed: 05/14/2023]
Abstract
PURPOSE This study used downhill running as a model to investigate the repeated bout effect (RBE) on neuromuscular performance, running biomechanics, and metabolic cost of running. METHODS Ten healthy recreational male runners performed two 30-min bouts of downhill running (DR1 and DR2) at a -20% slope and 2.8 m/s 3 weeks apart. Neuromuscular fatigue, level running biomechanics during slow and fast running, and running economy parameters were recorded immediately before and after the downhill bouts, and at 24 h, 48 h, 72 h, 96 h, and 168 h thereafter (i.e., follow-up days). RESULTS An RBE was confirmed by attenuated muscle soreness and serum creatine kinase rise after DR2 compared to DR1. An RBE was also observed in maximum voluntary contraction (MVC) force loss and voluntary activation where DR2 resulted in attenuated MVC force loss and voluntary activation immediately after the run and during follow-up days. The downhill running protocol significantly influenced level running biomechanics; an RBE was observed in which center of mass excursion and, therefore, lower-extremity compliance were greater during follow-up days after DR1 compared to DR2. The observed changes in level running biomechanics did not influence the energy cost of running. CONCLUSION This study demonstrated evidence of adaptation in neural drive as well as biomechanical changes with the RBE after DR. The higher neural drive resulted in attenuated MVC force loss after the second bout. It can be concluded that the RBE after downhill running manifests as changes to global and central fatigue parameters and running biomechanics without substantially altering the energy cost of running.
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Affiliation(s)
- Arash Khassetarash
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary T2N 1N4, Canada
| | - Gianluca Vernillo
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary T2N 1N4, Canada; Department of Biomedical Sciences for Health, University of Milan, Milan 20133, Italy
| | - Renata L Krüger
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary T2N 1N4, Canada
| | - W Brent Edwards
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary T2N 1N4, Canada
| | - Guillaume Y Millet
- Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary T2N 1N4, Canada; Inter-university Laboratory of Human Movement Biology, UJM-Saint-Etienne, Université de Lyon, Saint-Etienne 42023, France; Institut Universitaire de France (IUF), Paris 75231, France.
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Graybeal AJ, Kreutzer A, Willis JL, Moss K, Braun-Trocchio R, Shah M. Age Drives the Differences in Dietary Supplement Use in Endurance Athletes: A Cross-Sectional Analysis of Cyclists, Runners, and Triathletes. J Diet Suppl 2022:1-19. [DOI: 10.1080/19390211.2022.2056670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Austin J. Graybeal
- School of Kinesiology & Nutrition, College of Education and Human Sciences, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Andreas Kreutzer
- Department of Kinesiology, Harris College of Nursing & Health Sciences, Texas Christian University, Fort Worth, TX, USA
| | - Jada L. Willis
- Department of Nutritional Sciences, College of Science & Engineering, Texas Christian University, Fort Worth, TX, USA
| | - Kamiah Moss
- Department of Kinesiology, Harris College of Nursing & Health Sciences, Texas Christian University, Fort Worth, TX, USA
| | - Robyn Braun-Trocchio
- Department of Kinesiology, Harris College of Nursing & Health Sciences, Texas Christian University, Fort Worth, TX, USA
| | - Meena Shah
- Department of Nutritional Sciences, College of Science & Engineering, Texas Christian University, Fort Worth, TX, USA
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Trends in Participation, Sex Differences and Age of Peak Performance in Time-Limited Ultramarathon Events: A Secular Analysis. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58030366. [PMID: 35334541 PMCID: PMC8952003 DOI: 10.3390/medicina58030366] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/15/2022] [Accepted: 02/23/2022] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Increases in the number of participants in time-limited ultra-marathons have been reported. However, no information is available regarding the trends in participation, performance and age in 12 h and 24 h time-limited events. The aim of the study was to describe the trends in runners’ participation, performance and age in 12 h and 24 h ultra-marathons for both sexes and to identify the age of peak performance, taking into account the ranking position and age categories. Materials and Methods: The sample comprised 210,455 runners in time-limited ultra-marathons (female 12 h = 23,706; female 24 h = 28,585; male 12 h = 61,594; male 24 h = 96,570) competing between 1876 and 2020 and aged 18 to 86 years. The age of peak performance was tested according to their ranking position (first−third; fourth−tenth and >tenth position) and taking into account their running speed in different age categories (<30 years; 31−40 years; 41−50 years; 51−60 years; >60 years), using the Kruskal−Wallis test, followed by the Bonferroni adjustment. Results: An increase in the number of participants and a decrease in running speed were observed across the years. For both events, the sex differences in performance decreased over time. The sex differences showed that male runners performed better than female runners, but the lowest differences in recent years were observed in the 24 h ultra-marathons. A positive trend in age across the years was found with an increase in mean age (“before 1989” = 40.33 ± 10.07 years; “1990−1999” = 44.16 ± 10.37 years; “2000−2009” = 45.99 ± 10.33 years; “2010−2020” = 45.62 ± 10.80 years). Male runners in 24 h races were the oldest (46.13 ± 10.83 years), while female runners in 12 h races were the youngest (43.46 ± 10.16 years). Athletes ranked first−third position were the youngest (female 12 h = 41.19 ± 8.87 years; female 24 h = 42.19 ± 8.50 years; male 12 h = 42.03 ± 9.40 years; male 24 h = 43.55 ± 9.03 years). When age categories were considered, the best performance was found for athletes aged between 41 and 50 years (female 12 h 6.48 ± 1.74 km/h; female 24 h 5.64 ± 1.68 km/h; male 12 h 7.19 ± 1.90 km/h; male 24 h 6.03 ± 1.78 km/h). Conclusion: A positive trend in participation in 12 h and 24 h ultra-marathons was shown across the years; however, athletes were becoming slower and older. The fastest athletes were the youngest ones, but when age intervals were considered, the age of peak performance was between 41 and 50 years.
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Knechtle B, Weiss K, Villiger E, Scheer V, Gomes TN, Gajda R, Ouerghi N, Chtourou H, Nikolaidis PT, Rosemann T, Thuany M. The Sex Difference in 6-h Ultra-Marathon Running-The Worldwide Trends from 1982 to 2020. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:179. [PMID: 35208503 PMCID: PMC8876730 DOI: 10.3390/medicina58020179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/16/2022]
Abstract
Background and Objectives: The 6-h ultra-marathon is the shortest time-limited ultra-marathon race, but little has been investigated regarding this race format. Previously, only the age of peak performance in the context of longer time-limited ultra-marathons was determined. The purpose of this study was to investigate the trends in 6-h ultra-marathon races from 1982 to 2020 for female and male ultra-runners, the participation and performance by countries, the age of peak performance, and the differences in performance regarding countries. Materials and Methods: The sample included 23,203 female ultra-runners, aged 18-83 years, and 87,264 male ultra-runners, aged 18-85 years, who were finishers in a 6-h ultra-marathon held between 1982 and 2020. The age of peak performance was tested using the Kruskal-Wallis test, followed by the Bonferroni Correction. The difference in performance by countries was verified using a linear regression model with the fastest runners from Russia in women, and Tunisia in men, used as reference. Results: Over the years, the men-to-women ratio decreased. The mean age was 43.20 ± 9.30 years for female and 46.09 ± 10.17 years for male runners. Athletes in younger age groups were faster than athletes in older age groups. Most female and male participants originated from Germany. Women from Russia (10.01 ± 1.28 km/h) and men from Tunisia (12.16 ± 1.46 km/h) were the fastest. Conclusions: In summary, in 6-h ultra-marathons held between 1982 and 2020, the participation for both women and men increased, while the men-to-women ratio decreased. The mean age was higher in men compared to women. Most female and male runners originated from Germany, but the fastest women were from Russia, and the fastest men from Tunisia. Future studies need to investigate whether Russian women and Tunisian men are also the best in other distance-limited ultra-marathon races, such as 12-h and 24-h.
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Affiliation(s)
- Beat Knechtle
- Medbase St. Gallen Am Vadianplatz, 9000 St. Gallen, Switzerland;
- Institute of Primary Care, University of Zurich, 8000 Zurich, Switzerland;
| | - Katja Weiss
- Medbase St. Gallen Am Vadianplatz, 9000 St. Gallen, Switzerland;
| | - Elias Villiger
- Klinik für Allgemeine Innere Medizin, Kantonsspital St. Gallen, 9000 St. Gallen, Switzerland;
| | - Volker Scheer
- Ultra Sports Science Foundation, 69310 Pierre-Benite, France;
- Department Sports and Health, Institute of Sports Medicine, Paderborn University, 33098 Paderborn, Germany
| | - Thayse Natacha Gomes
- Department of Physical Education, Federal University of Sergipe, São Cristóvão 49100-000, Brazil;
| | - Robert Gajda
- Center for Sports Cardiology, Gajda-Med Medical Center in Pułtusk, 06-100 Pułtusk, Poland;
- Department of Kinesiology and Health Prevention, Jan Dlugosz University in Częstochowa, 42-200 Częstochowa, Poland
| | - Nejmeddine Ouerghi
- High Institute of Sport and Physical Education of Kef, University of Jendouba, UR13JS01, Kef 7100, Tunisia;
- Faculty of Medicine of Tunis, Rabta Hospital, University of Tunis El Manar, LR99ES11, Tunis 1007, Tunisia
| | - Hamdi Chtourou
- Institut Supérieur du Sport et de l’Education Physique de Sfax, Université de Sfax, Sfax 3000, Tunisia;
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | | | - Thomas Rosemann
- Institute of Primary Care, University of Zurich, 8000 Zurich, Switzerland;
| | - Mabliny Thuany
- Centre of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, 4200-450 Porto, Portugal;
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Nicot F, Sabater-Pastor F, Samozino P, Millet GY, Rupp T. Effect of ground technicity on cardio-respiratory and biomechanical parameters in uphill trail running. Eur J Sport Sci 2021; 22:1836-1846. [PMID: 34663199 DOI: 10.1080/17461391.2021.1995507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The goal of this study was to analyse the effects of ground technicity on cardio-respiratory and biomechanical responses during uphill running. Ten experienced male trail-runners ran ∼10.5 min at racing pace on two trails with different (high and low) a priori technicity levels. These two runs were replicated (same slope, velocity, and distance) indoor on a motor-driven treadmill. Oxygen uptake, minute ventilation (V̇E), heart rate as well as step frequency and medio-lateral feet accelerations (i.e. objective indices of uneven terrain running patterns adjustments) were continuously measured throughout all sessions. Rating of perceived exertion (RPE) and perceived technicity were assessed at the end of each bout. Oxygen cost of running (O2Cr) (+10.5%; p < 0.001), V̇E (+21%; p < 0.004) and the range and variability of feet medio-lateral accelerations (+116% and +134%, respectively; p < 0.001), were significantly greater when running on trail compared to the treadmill, regardless of the a priori technicity level. Despite perceived technicity being lower on treadmill (p < 0.001), RPE was not different between trail and treadmill runs (p < 0.68). It is concluded that running uphill on a trail vs. a treadmill significantly elevates both O2Cr and magnitude/variability of feet medio-lateral accelerations but no difference could be identified between trails of different a priori technicities. These results strengthen the need for trainers and race organisers to consider terrain technicity per se as a challenging cardio-respiratory and biomechanical component in uphill trail running.
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Affiliation(s)
- François Nicot
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université Savoie Mont Blanc, Chambéry, France.,Université Grenoble-Alpes, INRAE, ETNA, Grenoble, France
| | - Frederic Sabater-Pastor
- Inter-University Laboratory of Human Movement Biology, Université Lyon, UJM-Saint-Etienne, Saint-Etienne, France
| | | | - Guillaume Y Millet
- Inter-University Laboratory of Human Movement Biology, Université Lyon, UJM-Saint-Etienne, Saint-Etienne, France.,Institut Universitaire de France (IUF), Paris, France
| | - Thomas Rupp
- Laboratoire Interuniversitaire de Biologie de la Motricité, Université Savoie Mont Blanc, Chambéry, France
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Khodaee M, Irion B, Spittler J, Saeedi A, Hoffman MD. Characteristics of runners meeting acute kidney injury criteria following a 161‐km ultramarathon. TRANSLATIONAL SPORTS MEDICINE 2021. [DOI: 10.1002/tsm2.276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Morteza Khodaee
- Department of Family Medicine & Orthopedics University of Colorado School of Medicine Denver USA
| | - Bjørn Irion
- Western Orthopedics and Sports Medicine Grand Junction CO USA
| | - Jack Spittler
- Department of Family Medicine & Orthopedics University of Colorado School of Medicine Denver USA
| | - Anahita Saeedi
- Department of Biostatistics School of Public Health & Health Sciences University of Massachusetts Amherst MA USA
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Motivational Differences between 5K Runners, Marathoners and Ultramarathoners in Poland. SUSTAINABILITY 2021. [DOI: 10.3390/su13126980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The aim of the study was to determine the reasons for practicing different running distances (5K run, marathon, and ultramarathon), and to analyze the differences in each type according to gender, age, and marital status. An empirical study was conducted during the 2020 Karkonosze Winter Ultramarathon, 20th PKO Poznan Marathon, and 5K run—Parkrun Poznan and City Trail, over the course of which we interviewed 925 runners. A total of 267 ultramarathoners, 493 marathon runners, and 165 Parkrun and City Trail participants took part in the cross-sectional study, which used the diagnostic survey method. The questionnaire employed the division of motives used by the Motivation of Marathoners Scale (MOMS) by Masters et al., adapted to the Polish language by Dybała. No significant differences were found in any of the disciplines based on gender or marital status, although the results showed that weight concern increased with increasing age range in all the running distances analyzed. In addition, in 5K run and marathon runners, weight concern decreased in the 36 to 50 age range, but subsequently increased in those over 51 years of age. Therefore, it will be important for coaches and other professionals to consider athletes’ age when trying to understand their motives to participate in different disciplines.
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Pradas F, Falcón D, Peñarrubia-Lozano C, Toro-Román V, Carrasco L, Castellar C. Effects of Ultratrail Running on Neuromuscular Function, Muscle Damage and Hydration Status. Differences According to Training Level. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:5119. [PMID: 34065969 PMCID: PMC8150532 DOI: 10.3390/ijerph18105119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/05/2021] [Accepted: 05/09/2021] [Indexed: 12/19/2022]
Abstract
The status of trail running races has exponentially grown in recent years. The present study aimed to: (a) evaluate the acute response of ultratrail racing in terms of neuromuscular function, muscle damage and hydration status; (b) analyze if responses could differ according to training levels. Twenty runners participated in the present study. The participants were divided into amateur training level (n = 10; 43.30 ± 4.52 years) or high level competitors (n = 10; 41.40 ± 6.18). Neuromuscular response (squat jump, countermovement jump and Abalakov jump), muscle damage (alanine aminotransferase, bilirubin, creatine kinase and leukocytes) and hydration status (sodium and creatinine) were evaluated before and after the Guara Somontano Ultratrail Race (108 km distance, with an accumulated slope of 5800 m). The height and power achieved by vertical jumps were lower after the race (p < 0.001). The post-race muscle damage and creatinine parameters increased in both groups (p < 0.001). The high-level group obtained lower percentages of change in squat jump and countermovement jump than the amateur-level group (p < 0.05). However, the increase in creatinine was greater for the high-level group (p < 0.05). Ultratrail racing reduces neuromuscular function and increases muscle damage. High-level runners showed less neuromuscular fatigue compared to amateur ones.
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Affiliation(s)
- Francisco Pradas
- ENFYRED Research Group, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain; (F.P.); (D.F.); (C.P.-L.); (C.C.)
- Department of Corporal Expression, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain
| | - David Falcón
- ENFYRED Research Group, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain; (F.P.); (D.F.); (C.P.-L.); (C.C.)
- Department of Corporal Expression, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain
| | - Carlos Peñarrubia-Lozano
- ENFYRED Research Group, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain; (F.P.); (D.F.); (C.P.-L.); (C.C.)
- Department of Corporal Expression, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain
| | - Víctor Toro-Román
- School of Sport Sciences, University of Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - Luis Carrasco
- BIOFANEX Research Group, Department of Physical Education and Sport, Faculty of Education Sciences, University of Seville, 41004 Seville, Spain;
| | - Carlos Castellar
- ENFYRED Research Group, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain; (F.P.); (D.F.); (C.P.-L.); (C.C.)
- Department of Corporal Expression, Faculty of Health and Sports Sciences, University of Zaragoza, 22001 Huesca, Spain
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Abstract
INTRODUCTION Mountain running races have grown in popularity in the recent years. Nonetheless, there are few studies on injuries and injury rates. Moreover, these studies have focused on long-distance events such as ultramarathons (>42 km). Therefore, the aim of the present study was to examine the severity, type, and body location of musculoskeletal injuries during 20-42 km mountain running races. In addition, the injury rates in this type of races were examined. METHODS Data on injuries were collected during 36 mountain running races over 5 consecutive seasons from 2015 to 2019. The participants reported all musculoskeletal injuries on a standardized injury report form. The results were presented as the number of injuries per 1000 h exposure and per 1000 participants. RESULTS Twenty eight injuries were reported. Most injuries occurred in the ankle (32%) followed by the knee (14%) and foot/toe (11%). The number of injuries represented an overall injury rate of 1.6 injuries per 1000 h running and 5.9 injuries per 1000 runners. The case fatality rate was 0. CONCLUSIONS The incidence of musculoskeletal injuries during 20-42 km mountain running races is low. In addition, the majority of injuries experienced by runners are minor in nature and located in lower extremities, mainly the ankles.
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Howe CCF, Swann N, Spendiff O, Kosciuk A, Pummell EKL, Moir HJ. Performance determinants, running energetics and spatiotemporal gait parameters during a treadmill ultramarathon. Eur J Appl Physiol 2021; 121:1759-1771. [PMID: 33704547 PMCID: PMC8144128 DOI: 10.1007/s00421-021-04643-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/13/2021] [Indexed: 11/30/2022]
Abstract
Purpose The objective of this study was to investigate the changes in metabolic variables, running energetics and spatiotemporal gait parameters during an 80.5 km treadmill ultramarathon and establish which key predictive variables best determine ultramarathon performance. Methods Twelve participants (9 male and 3 female, age 34 ± 7 years, and maximal oxygen uptake (\documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙O2max) 60.4 ± 5.8 ml·kg−1·min−1) completed an 80.5 km time trial on a motorised treadmill in the fastest possible time. Metabolic variables: oxygen consumption (\documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙O2), carbon dioxide production (\documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙E) were measured via indirect calorimetry every 16.1 km at a controlled speed of 8 km·h−1 and used to calculate respiratory exchange ratio (RER), the energy cost of running (Cr) and fractional utilisation of \documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙O2max (F). Spatiotemporal gait parameters: stride length (SL) and cadence (SPM) were calculated via tri-axial accelerometery. Results Trial completion time was 09:00:18 ± 01:14:07 (hh:mm:ss). There were significant increases in \documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙O2, Cr, F, \documentclass[12pt]{minimal}
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\begin{document}$$\dot{V}$$\end{document}V˙E and heart rate (HR) (p < 0.01); a significant decrease in RER (p < 0.01) and no change in SL and SPM (p > 0.05) across the measured timepoints. F and Cr accounted for 61% of the variance in elapsed finish time (\documentclass[12pt]{minimal}
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\begin{document}$$R_{{{\text{adj}}}}^{{2}}$$\end{document}Radj2 = 0.607, p < 0.01). Conclusion A treadmill ultramarathon elicits significant changes in metabolic variables, running energetics and spatiotemporal gait parameters. With F and Cr explaining 61% of variance in finish time. Therefore, those able to maintain a higher F, while adopting strategies to minimise an increase in Cr may be best placed to maximise ultramarathon performance.
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Affiliation(s)
- Christopher C F Howe
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK.
| | - Nicola Swann
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK
| | - Owen Spendiff
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK
| | - Anna Kosciuk
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK
| | - Elizabeth K L Pummell
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK
| | - Hannah J Moir
- School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University London, Penryhn Road, Kingston upon Thames, KT1 2EE, UK
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Influence of Psychological Factors on the Success of the Ultra-Trail Runner. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052704. [PMID: 33800167 PMCID: PMC7967426 DOI: 10.3390/ijerph18052704] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 11/17/2022]
Abstract
The aim of this study was to analyze the psychological variables of runners of ultra-trail mountain races and their association with athletic performance and success. The sample was made up of 356 mountain runners, 86.7% men and 13.2% women, with a mean age of 42.7 years and 5.7 years of experience. Using pre- and post-race questionnaires, data were collected regarding mental toughness, resilience, and passion. The performance of each runner in the race was also recorded. The results showed very high values in the psychological variables analyzed compared with other sports disciplines. Completion of the race (not withdrawing) and the elite quality of the runners were presented as the most relevant indicators in the processes of resilience, mental toughness, and obsessive passion. Differences were noted between the pre- and post-race results, suggesting that the competition itself is a means of training those psychological factors that are essential to this sports discipline. It can be concluded that psychological factors are decisive to athletic performance and race completion in mountain ultra-marathon races.
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Rubio-Arias JÁ, Andreu L, Martínez-Aranda LM, Martínez-Rodríguez A, Manonelles P, Ramos-Campo DJ. Effects of medium- and long-distance running on cardiac damage markers in amateur runners: a systematic review, meta-analysis, and metaregression. JOURNAL OF SPORT AND HEALTH SCIENCE 2021; 10:192-200. [PMID: 33742602 PMCID: PMC7987568 DOI: 10.1016/j.jshs.2019.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 10/03/2019] [Accepted: 10/28/2019] [Indexed: 06/12/2023]
Abstract
BACKGROUND To finish an endurance race, athletes perform a vigorous effort that induces the release of cardiac damage markers. There are several factors that can affect the total number of these markers, so the aim of this review was to analyze the effect of endurance running races on cardiac damage markers and to identify the factors that modify the levels of segregation of these cardiac damage markers. METHODS A systematic search of PubMed, Web of Science, and the Cochrane Library databases was performed. This analysis included studies where the acute effects of running races on cardiac damage markers (troponin I and troponin T) were analyzed, assessing the levels of these markers before and after the races. RESULTS The effects of running races on troponin I (mean difference = 0.0381 ng/mL) and troponin T (mean difference = 0.0256 ng/mL) levels were significant. The ages (R2 = 14.4%, p = 0.033) and body mass indexes (R2 = 14.5%, p = 0.045) of the athletes had a significant interaction with troponin I. In addition, gender, mean speed, time to finish the race, and type of race can affect the level of cardiac damage markers. CONCLUSION Endurance running races induce the release of cardiac-damage markers that remain elevated for at least 24 h after the races. In addition, young male athletes with high body mass indexes who perform races combining long duration and moderate intensity (i.e., marathons) release the highest levels of cardiac damage markers. Physicians should take into consideration these results in the diagnosis and treatment of patients admitted to the hospital days after finishing endurance running races.
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Affiliation(s)
- Jacobo Á Rubio-Arias
- Faculty of Sport, Catholic University of San Antonio (UCAM), Murcia 30107, Spain; LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science-INEF, Universidad Politécnica de Madrid, Madrid 28040, Spain.
| | - Luis Andreu
- International Chair of Sports Medicine, Catholic University of San Antonio (UCAM), Murcia 30107, Spain
| | - Luis Manuel Martínez-Aranda
- Faculty of Sport, Catholic University of San Antonio (UCAM), Murcia 30107, Spain; Neuroscience of Human Movement Research Group (Neuromove), Catholic University of San Antonio (UCAM), Murcia 30107, Spain
| | | | - Pedro Manonelles
- International Chair of Sports Medicine, Catholic University of San Antonio (UCAM), Murcia 30107, Spain
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Martínez-Navarro I, Collado E, Hernando C, Hernando B, Hernando C. Inflammation, muscle damage and postrace physical activity following a mountain ultramarathon. J Sports Med Phys Fitness 2021; 61:1668-1674. [PMID: 33555667 DOI: 10.23736/s0022-4707.21.11977-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The study aimed at exploring whether muscle membrane disruption, as a surrogate for muscle damage, and inflammation recovery following a mountain ultramarathon (MUM) was related with race performance and postrace physical activity. METHODS Blood samples were obtained from thirty-four athletes (29 men and 5 women) before a 118-km MUM, immediately after and three- and seven-days postrace. Creatine kinase (CK), lactate dehydrogenase (LDH) and C-reactive protein (CRP) were compared between faster (FR) and slower (SR) runners. Physical activity performed during the week following the MUM was objectively analyzed using accelerometers and compared between FR and SR. RESULTS CK was significantly higher in FR at 3 days postrace (P<0.012, d=1.17) and LDH was significantly higher in FR at 3- and 7-days postrace (P=0.005, d=1.01; P<0.015, d=1.05 respectively), as compared to SR. No significant differences were identified in postrace physical activity levels between FR and SR. Significant relationships were found between race time and CK and LDH concentrations at 3 days postrace (r<inf>s</inf>=-0.41, P=0.017; r<inf>s</inf>=-0.52, P=0.002 respectively) and 7 days postrace (r<inf>s</inf>=-0.36, P=0.039; r<inf>s</inf>=-0.46. P=0.007 respectively). However, postrace physical activity was not associated with muscle damage and inflammation recovery, except for light intensity and CRP at 3 days postrace (r<inf>s</inf>=-0.40, P=0.025). CONCLUSIONS Race time appeared to have a higher influence on muscle damage recovery than the intensity of physical activities performed in the week after running a MUM. Inflammatory activity takes longer to normalize than muscle damage following a MUM, it is not related with race time and lightly related with postrace physical activity.
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Affiliation(s)
- Ignacio Martínez-Navarro
- Department of Physical Education and Sports, University of Valencia, Valencia, Spain - .,Unit of Sports Health -
| | | | - Carla Hernando
- Faculty of Health Sciences, Jaume I University, Castellon, Spain
| | | | - Carlos Hernando
- Department of Medicine, Jaume I University, Castellon, Spain.,Sport Service, Jaume I University, Castellon, Spain
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Viljoen CT, Janse van Rensburg DC, Verhagen E, van Mechelen W, Tomás R, Schoeman M, Scheepers S, Korkie E. Epidemiology of Injury and Illness Among Trail Runners: A Systematic Review. Sports Med 2021; 51:917-943. [PMID: 33538997 DOI: 10.1007/s40279-020-01418-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Trail running is characterised by large elevation gains/losses and uneven varying running surfaces. Limited information is available on injury and illness among trail runners to help guide injury and illness prevention strategies. OBJECTIVE The primary aim of this review was to describe the epidemiology of injury and illness among trail runners. METHODS Eight electronic databases were systematically searched (MEDLINE Ovid, PubMed, Scopus, SportsDiscus, CINAHL, Health Source: Nursing/Academic, Health Source: Consumer Ed., and Cochrane) from inception to November 2020. The search was conducted according to the PRISMA statement and the study was registered on PROSPERO international prospective register of systematic reviews (CRD42019135933). Full-text English and French studies that investigated injury and/or illness among trail runners participating in training/racing were included. The main outcome measurements included: trail running injury (incidence, prevalence, anatomical site, tissue type, pathology-type/specific diagnosis, severity), and illness (incidence, prevalence, symptoms, specific diagnosis, organ system, severity). The methodological quality of the included studies was assessed using an adapted Downs and Black assessment tool. RESULTS Sixteen studies with 8644 participants were included. Thirteen studies investigated race-related injury and/or illness and three studies included training-related injuries. The overall incidence range was 1.6-4285.0 injuries per 1000 h of running and 65.0-6676.6 illnesses per 1000 h of running. The foot was the most common anatomical site of trail running injury followed by the knee, lower leg, thigh, and ankle. Skin lacerations/abrasions were the most common injury diagnoses followed by skin blisters, muscle strains, muscle cramping, and ligament sprains. The most common trail running illnesses reported related to the gastro-intestinal tract (GIT), followed by the metabolic, and cardiovascular systems. Symptoms of nausea and vomiting related to GIT distress and dehydration were commonly reported. CONCLUSION Current trail running literature consists mainly of injury and illness outcomes specifically in relation to single-day race participation events. Limited evidence is available on training-related injury and illness in trail running. Our review showed that injury and illness are common among trail runners, but certain studies included in this review only focused on dermatological injuries (e.g. large number of feet blisters) and GIT symptoms. Specific areas for future research were identified that could improve the management of trail running injury and illness.
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Affiliation(s)
- Carel T Viljoen
- Department of Physiotherapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
- Sport, Exercise Medicine and Lifestyle Institute (SEMLI), Hillcrest Campus, University of Pretoria, Burnett Street, Hatfield, Pretoria, 0002, South Africa.
- Amsterdam Collaboration for Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Location VU University Medical Center, Amsterdam, The Netherlands.
| | - Dina C Janse van Rensburg
- Sport, Exercise Medicine and Lifestyle Institute (SEMLI), Hillcrest Campus, University of Pretoria, Burnett Street, Hatfield, Pretoria, 0002, South Africa
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Evert Verhagen
- Amsterdam Collaboration for Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Location VU University Medical Center, Amsterdam, The Netherlands
| | - Willem van Mechelen
- Amsterdam Collaboration for Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Location VU University Medical Center, Amsterdam, The Netherlands
- School of Human Movement and Nutrition Sciences, Faculty of Health and Behavioural Sciences, University of Queensland, Brisbane, Australia
- Division of Exercise Science and Sports Medicine (ESSM), Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- School of Public Health, Physiotherapy and Population Sciences, University College Dublin, Dublin, Ireland
| | - Rita Tomás
- Portugal Football School, Portuguese Football Federation, Lisbon, Portugal
| | - Marlene Schoeman
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Susan Scheepers
- Department of Library Services, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Elzette Korkie
- Department of Physiotherapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Sport, Exercise Medicine and Lifestyle Institute (SEMLI), Hillcrest Campus, University of Pretoria, Burnett Street, Hatfield, Pretoria, 0002, South Africa
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Do Sex Differences in Physiology Confer a Female Advantage in Ultra-Endurance Sport? Sports Med 2021; 51:895-915. [PMID: 33502701 DOI: 10.1007/s40279-020-01417-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2020] [Indexed: 01/09/2023]
Abstract
Ultra-endurance has been defined as any exercise bout that exceeds 6 h. A number of exceptional, record-breaking performances by female athletes in ultra-endurance sport have roused speculation that they might be predisposed to success in such events. Indeed, while the male-to-female performance gap in traditional endurance sport (e.g., marathon) remains at ~ 10%, the disparity in ultra-endurance competition has been reported as low as 4% despite the markedly lower number of female participants. Moreover, females generally outperform males in extreme-distance swimming. The issue is complex, however, with many sports-specific considerations and caveats. This review summarizes the sex-based differences in physiological functions and draws attention to those which likely determine success in extreme exercise endeavors. The aim is to provide a balanced discussion of the female versus male predisposition to ultra-endurance sport. Herein, we discuss sex-based differences in muscle morphology and fatigability, respiratory-neuromechanical function, substrate utilization, oxygen utilization, gastrointestinal structure and function, and hormonal control. The literature indicates that while females exhibit numerous phenotypes that would be expected to confer an advantage in ultra-endurance competition (e.g., greater fatigue resistance, greater substrate efficiency, and lower energetic demands), they also exhibit several characteristics that unequivocally impinge on performance (e.g., lower O2-carrying capacity, increased prevalence of GI distress, and sex-hormone effects on cellular function/injury risk). Crucially, the advantageous traits may only manifest as ergogenic in the extreme endurance events which, paradoxically, are those that females less often contest. The title question should be revisited in the coming years, when/if the number of female participants increases.
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Tiller NB, Stewart GM, Illidi CR, Levine BD. Exercise Is Medicine? The Cardiorespiratory Implications of Ultra-marathon. Curr Sports Med Rep 2021; 19:290-297. [PMID: 32769665 DOI: 10.1249/jsr.0000000000000738] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Regular physical activity decreases the risk of cardiovascular disease, type II diabetes, obesity, certain cancers, and all-cause mortality. Nevertheless, there is mounting evidence that extreme exercise behaviors may be detrimental to human health. This review collates several decades of literature on the physiology and pathophysiology of ultra-marathon running, with emphasis on the cardiorespiratory implications. Herein, we discuss the prevalence and clinical significance of postrace decreases in lung function and diffusing capacity, respiratory muscle fatigue, pulmonary edema, biomarkers of cardiac injury, left/right ventricular dysfunction, and chronic myocardial remodeling. The aim of this article is to inform risk stratification for ultra-marathon and to edify best practice for personnel overseeing the events (i.e., race directors and medics).
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Affiliation(s)
- Nicholas B Tiller
- Institute of Respiratory Medicine and Exercise Physiology, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Glenn M Stewart
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
| | - Camilla R Illidi
- Division of Sport, Health and Exercise Sciences, Department of Life Sciences, Brunel University London, UNITED KINGDOM
| | - Benjamin D Levine
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, and University of Texas Southwestern Medical Center, Dallas, TX
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An Analysis of Participation and Performance of 2067 100-km Ultra-Marathons Worldwide. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020362. [PMID: 33418867 PMCID: PMC7825131 DOI: 10.3390/ijerph18020362] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/22/2020] [Accepted: 12/31/2020] [Indexed: 01/06/2023]
Abstract
This study aimed to analyze the number of successful finishers and the performance of the athletes in 100-km ultra-marathons worldwide. A total of 2067 100-km ultra-marathon races with 369,969 men and 69,668 women competing between 1960 and 2019 were analyzed, including the number of successful finishers, age, sex, and running speed. The results showed a strong increase in the number of running events as well as a strong increase in the number of participants in the 100-km ultra-marathons worldwide. The performance gap disappeared in athletes older than 60 years. Nevertheless, the running speed of athletes over 70 years has improved every decade. In contrast, the performance gap among the top three athletes remains persistent over all decades (F = 83.4, p < 0.001; pη2 = 0.039). The performance gap between the sexes is not significant in the youngest age groups (20–29 years) and the oldest age groups (>90 years) among recreational athletes and among top-three athletes over 70 years. In summary, especially for older athletes, a 100-km ultra-marathon competition shows an increasing number of opponents and a stronger performance challenge. This will certainly be of interest for coaches and athletes in the future, both from a scientific and sporting point of view.
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Knechtle B, Waśkiewicz Z, Sousa CV, Hill L, Nikolaidis PT. Cold Water Swimming-Benefits and Risks: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E8984. [PMID: 33276648 PMCID: PMC7730683 DOI: 10.3390/ijerph17238984] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/14/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022]
Abstract
Cold water swimming (winter or ice swimming) has a long tradition in northern countries. Until a few years ago, ice swimming was practiced by very few extreme athletes. For some years now, ice swimming has been held as competitions in ice-cold water (colder than 5 °C). The aim of this overview is to present the current status of benefits and risks for swimming in cold water. When cold water swimming is practiced by experienced people with good health in a regular, graded and adjusted mode, it appears to bring health benefits. However, there is a risk of death in unfamiliar people, either due to the initial neurogenic cold shock response or due to a progressive decrease in swimming efficiency or hypothermia.
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Affiliation(s)
- Beat Knechtle
- Medbase St. Gallen Am Vadianplatz, 9000 St. Gallen, Switzerland;
| | - Zbigniew Waśkiewicz
- Institute of Sport Science, Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland;
- Department of Sports Medicine and Medical Rehabilitation Moscow, Sechenov First Moscow State Medical University, 19c1 Moscow, Russia
| | - Caio Victor Sousa
- Bouve College of Health Sciences, Northeastern University, Boston, MA 02115, USA;
| | - Lee Hill
- Division of Gastroenterology & Nutrition, Department of Pediatrics, McMaster University, Hamilton, ON L8N 3Z5, Canada;
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Mieszkowski J, Stankiewicz B, Kochanowicz A, Niespodziński B, Kowalik T, Żmijewski MA, Kowalski K, Rola R, Bieńkowski T, Antosiewicz J. Ultra-Marathon-Induced Increase in Serum Levels of Vitamin D Metabolites: A Double-Blind Randomized Controlled Trial. Nutrients 2020; 12:nu12123629. [PMID: 33255807 PMCID: PMC7760943 DOI: 10.3390/nu12123629] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose: While an increasing number of studies demonstrate the importance of vitamin D for athletic performance, the effects of any type of exercise on vitamin D metabolism are poorly characterized. We aimed to identify the responses of some vitamin D metabolites to ultra-marathon runs. Methods: A repeated-measures design was implemented, in which 27 amateur runners were assigned into two groups: those who received a single dose of vitamin D3 (150,000 IU) 24 h before the start of the marathon (n = 13) and those (n = 14) who received a placebo. Blood samples were collected 24 h before, immediately after, and 24 h after the run. Results: In both groups of runners, serum 25(OH)D3, 24,25(OH)2D3, and 3-epi-25(OH)D3 levels significantly increased by 83%, 63%, and 182% after the ultra-marathon, respectively. The increase was most pronounced in the vitamin D group. Body mass and fat mass significantly decreased after the run in both groups. Conclusions: Ultra-marathon induces the mobilization of vitamin D into the blood. Furthermore, the 24,25(OH)2D3 and 3-epi-25(OH)D3 increases imply that the exercise stimulates vitamin D metabolism.
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Affiliation(s)
- Jan Mieszkowski
- Department of Gymnastics and Dance, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (J.M.); (A.K.)
| | - Błażej Stankiewicz
- Institute of Physical Education, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland; (B.S.); (B.N.); (T.K.)
| | - Andrzej Kochanowicz
- Department of Gymnastics and Dance, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland; (J.M.); (A.K.)
| | - Bartłomiej Niespodziński
- Institute of Physical Education, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland; (B.S.); (B.N.); (T.K.)
| | - Tomasz Kowalik
- Institute of Physical Education, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland; (B.S.); (B.N.); (T.K.)
| | - Michał A. Żmijewski
- Department of Histology, Medical University of Gdańsk, 80-211 Gdansk, Poland;
| | - Konrad Kowalski
- Masdiag Sp. z o.o. Company, 01-882 Warsaw, Poland; (K.K.); (R.R.); (T.B.)
| | - Rafał Rola
- Masdiag Sp. z o.o. Company, 01-882 Warsaw, Poland; (K.K.); (R.R.); (T.B.)
- Chair of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Tomasz Bieńkowski
- Masdiag Sp. z o.o. Company, 01-882 Warsaw, Poland; (K.K.); (R.R.); (T.B.)
| | - Jędrzej Antosiewicz
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdansk, 80-210 Gdansk, Poland
- Correspondence: ; Tel.: +48-583491456
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Menéndez C, Batalla L, Prieto A, Rodríguez MÁ, Crespo I, Olmedillas H. Medial Tibial Stress Syndrome in Novice and Recreational Runners: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17207457. [PMID: 33066291 PMCID: PMC7602098 DOI: 10.3390/ijerph17207457] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/28/2020] [Accepted: 10/10/2020] [Indexed: 01/10/2023]
Abstract
This systematic review evaluates the existing literature about medial tibial stress syndrome (MTSS) in novice and recreational runners. PubMed/MEDLINE, EMBASE, Web of Science, Scopus, SPORTDiscus and CINAHL databases were searched until July 2020. Studies covering risk factors, diagnostic procedures, treatment methods and time to recovery of MTSS in novice and recreational runners were selected. Eleven studies met the inclusion criteria and were included. The risk factors of MTSS are mainly intrinsic and include higher pelvic tilt in the frontal plane, peak internal rotation of the hip, navicular drop and foot pronation, among others. Computed tomography (CT) and pressure algometry may be valid instruments to corroborate the presence of this injury and confirm the diagnosis. Regarding treatment procedures, arch-support foot orthoses are able to increase contact time, normalize foot pressure distribution and similarly to shockwave therapy, reduce pain. However, it is important to take into account the biases and poor methodological quality of the included studies, more research is needed to confirm these results.
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Affiliation(s)
- Claudia Menéndez
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
| | - Lucía Batalla
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
| | - Alba Prieto
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
| | - Miguel Ángel Rodríguez
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
| | - Irene Crespo
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
- Institute of Biomedicine, Universidad de León, 24071 León, Spain
| | - Hugo Olmedillas
- Department of Functional Biology, Universidad de Oviedo, 33003 Oviedo, Spain; (C.M.); (L.B.); (A.P.); (M.Á.R.); (I.C.)
- Health Research Institute of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
- Correspondence:
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Hernando B, Gil-Barrachina M, Tomás-Bort E, Martinez-Navarro I, Collado-Boira E, Hernando C. The effect of long-term ultra-endurance exercise and SOD2 genotype on telomere shortening with age. J Appl Physiol (1985) 2020; 129:873-879. [DOI: 10.1152/japplphysiol.00570.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Habitual ultra-endurance exercise seems to promote telomere length maintenance, especially at older ages. In addition, the beneficial effect of ultra-endurance training on biological aging is higher in ultra-trail runners who have been engaged to ultra-endurance training during many years. Finally, and for the first time, this study shows that the SOD2 rs4880 polymorphism has a significant impact on telomere length, as well as on acute inflammatory response to a 107-km trail race.
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Affiliation(s)
| | | | | | - Ignacio Martinez-Navarro
- Department of Physical Education and Sport, University of Valencia, Valencia, Spain
- Sports Health Unit, Vithas-Nisa 9 de Octubre Hospital, Valencia, Spain
| | | | - Carlos Hernando
- Sport Service, Jaume I University, Castellon, Spain
- Department of Education and Specific Didactics, Jaume I University, Castellon, Spain
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Suter D, Sousa CV, Hill L, Scheer V, Nikolaidis PT, Knechtle B. Even Pacing Is Associated with Faster Finishing Times in Ultramarathon Distance Trail Running-The "Ultra-Trail du Mont Blanc" 2008-2019. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17197074. [PMID: 32992625 PMCID: PMC7578994 DOI: 10.3390/ijerph17197074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/08/2020] [Accepted: 09/24/2020] [Indexed: 12/28/2022]
Abstract
In recent years, there has been an increasing number of investigations analyzing the effects of sex, performance level, and age on pacing in various running disciplines. However, little is known about the impact of those factors on pacing strategies in ultramarathon trail running. This study investigated the effects of age, sex, and performance level on pacing in the UTMB® (Ultra-trail du Mont Blanc) and aimed to verify previous findings obtained in the research on other running disciplines and other ultramarathon races. Data from the UTMB® from 2008 to 2019 for 13,829 race results (12,681 men and 1148 women) were analyzed. A general linear model (two-way analysis of variance (ANOVA)) was applied to identify a sex, age group, and interaction effect in pace average and pace variation. A univariate model (one-way ANOVA) was used to identify a sex effect for age, pace average, and pace variation for the fastest men and women. In our study, pace average and a steadier pace were positively correlated. Even pacing throughout the UTMB® correlated with faster finishing times. The average pace depended significantly on sex and age group. When considering the top five athletes in each age group, sex and age group also had significant effects on pace variation. The fastest women were older than the fastest men, and the fastest men were faster than the fastest women. Women had a higher pace variation than men. In male competitors, younger age may be advantageous for a successful finish of the UTMB®. Faster male runners seemed to be younger in ultramarathon trail running with large changes in altitude when compared to other distances and terrains.
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Affiliation(s)
- Daniel Suter
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland;
| | - Caio Victor Sousa
- Bouve College of Health Sciences, Northeastern University, Boston, MA 02115, USA;
| | - Lee Hill
- Division of Gastroenterology & Nutrition, Department of Pediatrics, McMaster University, Hamilton, ON L8N 3Z5, Canada;
| | - Volker Scheer
- Ultra Sports Science Foundation, 109 Boulevard de l’Europe, 69310 Pierre-Bénite, France;
| | - Pantelis Theo Nikolaidis
- School of Health and Caring Sciences, University of West Attica, 12243 Athens, Greece;
- Exercise Physiology Laboratory, 18450 Nikaia, Greece
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland;
- Medbase St. Gallen, Am Vadianplatz, 9001 St. Gallen, Switzerland
- Correspondence: ; Tel.: +41-71-226-93-00
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Martínez-Navarro I, Sanchez-Gómez JM, Aparicio I, Priego-Quesada JI, Pérez-Soriano P, Collado E, Hernando B, Hernando C. Effect of mountain ultramarathon distance competition on biochemical variables, respiratory and lower-limb fatigue. PLoS One 2020; 15:e0238846. [PMID: 32915883 PMCID: PMC7485829 DOI: 10.1371/journal.pone.0238846] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/25/2020] [Indexed: 12/26/2022] Open
Abstract
The study aimed at assessing the acute physiological effects of running a 65-km vs a 107-km mountain ultramarathon. Nineteen athletes (15 males and 4 females) from the shorter race and forty three athletes (26 males and 17 females) from the longer race were enrolled. Body weight, respiratory and lower limb strength were assessed before and after the race. Blood samples were obtained before, after and 24-h post-race. Body weight loss did not differ between races. A decrease in squat jump height (p<0.01; d = 1.4), forced vital capacity (p<0.01; d = 0.5), forced expiratory volume in 1 s (p<0.01; d = 0.6), peak inspiratory flow (p<0.01; d = 0.6) and maximal inspiratory pressure (p<0.01; d = 0.8) was observed after the longer race; while, after the shorter race only maximal inspiratory pressure declined (p<0.01; d = 0.5). Greater post-race concentrations of creatine kinase (p<0.01; d = 0.9) and C-reactive protein (p<0.01; d = 2.3) were observed following the longer race, while high-sensitivity cardiac troponin was higher after the shorter race (p<0.01; d = 0.3). Sodium decreased post-competition only after the shorter race (p = 0.02; d = 0.6), while creatinine increased only following the longer race (p<0.01; d = 1.5). In both groups, glomerular filtration rate declined at post-race (longer race: p<0.01, d = 2.1; shorter race: p = 0.01, d = 1.4) and returned to baseline values at 24 h post-race. In summary, expiratory and lower-limb fatigue, and muscle damage and inflammatory response were greater following the longer race; while a higher release of cardiac troponins was observed after the shorter race. The alteration and restoration of renal function was similar after either race.
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Affiliation(s)
- Ignacio Martínez-Navarro
- Physical Education and Sports Department, University of Valencia, Valencia, Spain
- Sports Health Unit, Vithas 9 de Octubre Hospital, Valencia, Spain
| | - Juan Miguel Sanchez-Gómez
- Sports Health Unit, Vithas 9 de Octubre Hospital, Valencia, Spain
- University Clinical Hospital of Valencia, Valencia, Spain
| | - Inma Aparicio
- Research Group in Sports Biomechanics (GIBD), Physical Education and Sports Department, University of Valencia, Valencia, Spain
- AITEX (Textil Research Institute), Alcoy, Spain
| | - Jose Ignacio Priego-Quesada
- Research Group in Sports Biomechanics (GIBD), Physical Education and Sports Department, University of Valencia, Valencia, Spain
| | - Pedro Pérez-Soriano
- Research Group in Sports Biomechanics (GIBD), Physical Education and Sports Department, University of Valencia, Valencia, Spain
| | - Eladio Collado
- Faculty of Health Sciences, Jaume I University, Castellon, Spain
| | | | - Carlos Hernando
- Sport Service, Jaume I University, Castellon, Spain
- Department of Education and Specific Didactics, Jaume I University, Castellon, Spain
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Post-Exercise Hypotension and Reduced Cardiac Baroreflex after Half-Marathon Run: In Men, but Not in Women. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176337. [PMID: 32878130 PMCID: PMC7503517 DOI: 10.3390/ijerph17176337] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/27/2020] [Accepted: 08/27/2020] [Indexed: 12/12/2022]
Abstract
We examined whether trained women exhibit similar cardiovascular and cardiac baroreflex alterations after a half-marathon compared to men. Thirteen women (39.1 ± 9.3 years; 165 ± 6 cm; 58.2 ± 7.5 kg; maximal aerobic speed (MAS): 13.7 ± 2.2 km·h-1) and 12 men (45.7 ± 10.5 years; 178 ± 7 cm; 75.0 ± 8.3 kg; MAS: 15.8 ± 2.2 km·h-1) ran an official half-marathon. Before and 60-min after, cardiovascular variables, parasympathetic (heart rate variability analysis) modulation and cardiac baroreflex function (transfer function and sequence analyses) were assessed during supine rest and a squat-stand test. Running performance was slower in women than in men (120 ± 19 vs. 104 ± 14 min for women and men, respectively). However, when expressed as a percentage of MAS, it was similar (78.1 ± 4.6% and 78.2 ± 5.4% of MAS for women and men, respectively). Before the run, women exhibited lower mean blood pressure (BP), cardiac output (CO) and stroke volume (SV) compared to men, together with higher parasympathetic indexes. After the race, parasympathetic indexes decreased in both sexes, but remained higher in women. Reduced SV, systolic BP and cardiac baroreflex were observed in men but not in women. Contrary to men, a competitive half-marathon did not trigger post-exercise hypotension and a reduced cardiac baroreflex in women.
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BESSON THIBAULT, ROSSI JÉRÉMY, LE ROUX MALLOUF THIBAULT, MARECHAL MATTHIEU, DOUTRELEAU STÉPHANE, VERGES SAMUEL, MILLET GUILLAUMEY. Fatigue and Recovery after Single-Stage versus Multistage Ultramarathon Running. Med Sci Sports Exerc 2020; 52:1691-1698. [DOI: 10.1249/mss.0000000000002303] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Schoenfeld J, Schindler MJ, Haller B, Holdenrieder S, Nieman DC, Halle M, La Gerche A, Scherr J. Prospective long-term follow-up analysis of the cardiovascular system in marathon runners: study design of the Pro-MagIC study. BMJ Open Sport Exerc Med 2020; 6:e000786. [PMID: 32704381 PMCID: PMC7371022 DOI: 10.1136/bmjsem-2020-000786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2020] [Indexed: 11/05/2022] Open
Abstract
Introduction Prolonged strenuous exercise training may result in structural, functional and electrical cardiac remodelling, as well as vascular and myocardial injuries. However, the extent to which high-volume, intense exercise is associated with arrhythmias, myocardial fibrosis, coronary heart disease and pathological alterations of the vasculature remains unknown. In addition, there is no clear consensus on the clinical significance of these exercise-induced changes. Previous studies typically used cross-sectional designs and examined exercise-induced cardiovascular changes in small cohorts of athletes for up to 3–7 days of recovery. Long-term longitudinal studies investigating cardiovascular changes induced by prolonged strenuous exercise in large cohorts of athletes are needed to improve scientific understanding in this area. Methods and analysis In this prospective observational monocenter study, 277 participants of the Beer, Marathon, Genetics, Inflammation and the Cardiovascular System (Be-MaGIC) study (ClinicalTrials.gov: NCT00933218) will be invited to participate in this 10-year follow-up study. A minimum target sample size of 130 participants will be included in the study. Participating athletes will be examined via the following: anthropometry, resting electrocardiography and echocardiography, blood sampling, retinal vessel diameters, carotid sonography and cardiopulmonary exercise testing, including exercise electrocardiography. Discussion This longitudinal study will provide comprehensive data on physiological changes in the cardiovascular system and the development of pathologies after a 10-year period of prolonged and strenuous endurance exercise. Since the participants will have engaged in a wide range of training loads and competitive race events, this study will provide useful risk factor determinants and training load cut-off values. The primary endpoint is the association between the exercise-induced increase in cardiac troponin during the Munich marathon 2009 and the decline in right ventricular ejection fraction over the next 10 years. Trial registration number NCT04166903.
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Affiliation(s)
- Julia Schoenfeld
- Preventive Sports Medicine and Sports Cardiology, University Hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Bavaria, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Bavaria, Germany
| | - Michael Johannes Schindler
- Preventive Sports Medicine and Sports Cardiology, University Hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Bavaria, Germany
| | - Bernhard Haller
- Institute of Medical Informatics, Statistics and Epidemiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Bavaria, Germany
| | - Stefan Holdenrieder
- Department of Laboratory Medicine, German Heart Center at Munich Technical University, Munich, Bayern, Germany
| | - David Christopher Nieman
- Human Performance Laboratory, Appalachian State University and North Carolina Research Campus, Kannapolis, North Carolina, USA
| | - Martin Halle
- Preventive Sports Medicine and Sports Cardiology, University Hospital Klinikum rechts der Isar, Technical University of Munich, Munich, Bavaria, Germany.,Deutsches Zentrum für Herz- und Kreislauf-Forschung (DZHK) e.V. (German Center for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Bavaria, Germany
| | - André La Gerche
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Johannes Scherr
- University Center for Preventive and Sports Medicine, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
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Urdampilleta A, Arribalzaga S, Viribay A, Castañeda-Babarro A, Seco-Calvo J, Mielgo-Ayuso J. Effects of 120 vs. 60 and 90 g/h Carbohydrate Intake during a Trail Marathon on Neuromuscular Function and High Intensity Run Capacity Recovery. Nutrients 2020; 12:E2094. [PMID: 32679728 PMCID: PMC7400827 DOI: 10.3390/nu12072094] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/27/2020] [Accepted: 07/11/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Current carbohydrate (CHO) intake recommendations for ultra-trail activities lasting more than 2.5 h is 90 g/h. However, the benefits of ingesting 120 g/h during a mountain marathon in terms of post-exercise muscle damage have been recently demonstrated. Therefore, the aim of this study was to analyze and compare the effects of 120 g/h CHO intake with the recommendations (90 g/h) and the usual intake for ultra-endurance athletes (60 g/h) during a mountain marathon on internal exercise load, and post-exercise neuromuscular function and recovery of high intensity run capacity. METHODS Twenty-six elite trail-runners were randomly distributed into three groups: LOW (60 g/h), MED (90 g/h) and HIGH (120 g/h), according to CHO intake during a 4000-m cumulative slope mountain marathon. Runners were measured using the Abalakov Jump test, a maximum a half-squat test and an aerobic power-capacity test at baseline (T1) and 24 h after completing the race (T2). RESULTS Changes in Abalakov jump time (ABKJT), Abalakov jump height (ABKH), half-squat test 1 repetition maximum (HST1RM) between T1 and T2 showed significant differences by Wilcoxon signed rank test only in LOW and MED (p < 0.05), but not in the HIGH group (p > 0.05). Internal load was significantly lower in the HIGH group (p = 0.017) regarding LOW and MED by Mann Whitney u test. A significantly lower change during the study in ABKJT (p = 0.038), ABKH (p = 0.038) HST1RM (p = 0.041) and in terms of fatigue (p = 0.018) and lactate (p = 0.012) within the aerobic power-capacity test was presented in HIGH relative to LOW and MED. CONCLUSIONS 120 g/h CHO intake during a mountain marathon might limit neuromuscular fatigue and improve recovery of high intensity run capacity 24 h after a physiologically challenging event when compared to 90 g/h and 60 g/h.
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Affiliation(s)
- Aritz Urdampilleta
- Centro Investigación y Formación ElikaSport, Cerdanyola del Valles, 08290 Barcelona, Spain;
| | - Soledad Arribalzaga
- Institute of Biomedicine (IBIOMED), Physiotherapy Department, University of Leon, Campus de Vegazana, 24071 Leon, Spain;
| | - Aitor Viribay
- Glut4Science, Physiology, Nutrition and Sport, 01004 Vitoria-Gasteiz, Spain;
| | - Arkaitz Castañeda-Babarro
- Health, Physical Activity and Sports Science Laboratory, Department of Physical Activity and Sports, Faculty of Psychology and Education, University of Deusto, 48007 Bizkaia, Spain;
| | - Jesús Seco-Calvo
- Institute of Biomedicine (IBIOMED), Physiotherapy Department, University of Leon, Researcher at the Basque Country University, Campus de Vegazana, 24071 Leon, Spain;
| | - Juan Mielgo-Ayuso
- Department of Biochemistry, Molecular Biology and Physiology, Faculty of Health Sciences, University of Valladolid, 42004 Soria, Spain
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