1
|
Ben Abdessalem MA, Ghariani A, Fekih Romdhane A, Ben Ameur Z, Bouraoui H, Abdelah M, Ernez-Hajri S. [Monocentric retrospective study on the prevalence and significance of incomplete right bundle branch block in young competitive athletes in Tunisia]. Ann Cardiol Angeiol (Paris) 2023; 72:101582. [PMID: 36934479 DOI: 10.1016/j.ancard.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/17/2022] [Accepted: 02/13/2023] [Indexed: 03/19/2023]
Abstract
AIMS Few studies have assessed the prevalence and significance of right bundle branch block in athletes. Aims of this study were to evaluate the prevalence of incomplete right bundle branch block and its correlation with the nature of sports practice and to compare the athlete with right bundle branch block and the one with a normal electrocardiogram. METHODS It was a retrospective study of the electrocardiogram and echocardiography of competitive athletes recruited in the medical-sports center of Sousse RESULTS: A total of 554 athletes were included. Mean age was 16.1 ± 2.9 years and 69 % were male. The mean training duration was 5.8 hours per week. The prevalence of incomplete right bundle branch block was 13.9 % (77 cases). Endurance sports were practiced in 71.4 % of cases among subjects with right bundle branch block versus 55.4 % in the rest of the population (p < 0.001). The basal diameter of the right ventricle was larger in athletes with right bundle branch block compared to athletes without right bundle branch block: 28 ± 3.6 mm versus 24 ± 2.4 mm (p < 0.001). CONCLUSIONS The results of this study suggest that right bundle branch block is a marker of incomplete right ventricular remodeling. This remodeling represents a form of adaptation to sustained elevation of volumetric load observed mainly in endurance sports.
Collapse
Affiliation(s)
| | - Anis Ghariani
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie.
| | - Ahmed Fekih Romdhane
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie
| | - Zied Ben Ameur
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie
| | - Hatem Bouraoui
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie
| | - Mahdhaoui Abdelah
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie; Université de Sousse, Laboratoire de recherche : LR14ES05 : Interaction du système cardio-pulmonaire, Faculté de Médecine de Sousse, Tunisie
| | - Samia Ernez-Hajri
- Service de cardiologie, Centre hospital-universitaire Farhat Hached, Sousse, Tunisie; Hôpital Farhat Hached de Sousse, Laboratoire de recherche : LRSP09 : Insuffisance cardiaque, Tunisie
| |
Collapse
|
2
|
Abstract
Studies treating the impact of cold-water-immersion (CWI) on athletes' performance are very interesting and should be encouraged. The CWI is currently attracting the attention of the sports world as a recovery technique and it is often recommended in sports where contact is repeated throughout training and competitions. However, if some studies reported the efficacy of CWI as an analgesic against traumatic or immune aspects, currently there is not consistent unanimity of its use as a method of improving performance. The researchers set out to observe the effects of CWI on the restoration of numerous performance indicators, characterizing both the aerobic and anaerobic energy pathways, but also the different modalities of muscle contraction. However, few data appear to be available on the effects of CWI on performance and recovery capacity and very few studies have observed results in the same direction. Results regarding the impact of CWI on performance are conflicting, with a few studies suggesting beneficial effects and others indicating negligible effects. The two main aims of the present paper are to briefly expose the literature data related to the effects of CWI on muscle function and aerobic capacity of athletes, and to clarify the origin of discrepancies between studies' findings.
Collapse
|
3
|
Lust CAC, Mountjoy M, Robinson LE, Oliver JM, Ma DWL. Sports-related concussions and subconcussive impacts in athletes: incidence, diagnosis, and the emerging role of EPA and DHA. Appl Physiol Nutr Metab 2020; 45:886-892. [PMID: 32119565 DOI: 10.1139/apnm-2019-0555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Sports-related concussions (SRC) are traumatic brain injuries induced as the result of a biomechanical force to the body that temporarily impair neurological functions. Not all traumatic impacts reach the threshold necessary to produce concussive symptoms; however, the culmination of these events is known as a subconcussive impact (SCI). Athletes who have been diagnosed with a SRC or those who accumulate multiple SCI have exhibited structural damage to the brain, impairments to learning and memory, and an increase in depressive symptoms. This area is rapidly evolving, and current clinical definitions of injury, diagnosis, and treatment of SRC and SCI are reviewed. In tandem, there is also growing research examining the role of nutrition in brain injuries, focusing primarily on n-3 polyunsaturated fatty acids (PUFA). The potential role of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in reducing inflammation and promoting recovery following brain injury are also reviewed. Overall, advancements in the evaluation of SRC and SCI coupled with n-3 PUFA supplementation show promise in the management of brain injuries, leading to better long-term health outcomes for athletes. Novelty SRC have garnered widespread attention due to the growing body of reported prevalence in youth and professional sports. Current definitions and protocol(s) for diagnosing SRC and SCI have improved, but still require further evaluation. n-3, EPA and DHA, reduce inflammation and promote recovery following brain injuries in experimental models.
Collapse
Affiliation(s)
- Cody A C Lust
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Margo Mountjoy
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Lindsay E Robinson
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Jonathan M Oliver
- Athletics, United States Military Academy, West Point, NY 10996, USA
| | - David W L Ma
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
4
|
Abstract
Lower gastrointestinal (GI) symptoms are common among endurance athletes and can impair performance. Symptom characteristics are similar to irritable bowel syndrome (IBS). No previous research has examined IBS diagnosis (medically or by diagnostic criteria) within this population. The objectives of this study were to determine the prevalence of IBS among endurance athletes and examine their GI symptom management strategies. A previously validated, online questionnaire assessed IBS diagnosis, the meeting of IBS diagnostic criteria (Rome III or Manning), general GI symptoms, and symptom mitigation strategies of endurance athletes. The questionnaire was distributed to United States athletes completing a marathon, ultra-marathon, half-distance triathlon, or full-distance triathlon. Medically diagnosed IBS was reported by 2.8% of endurance athletes. The total prevalence of IBS (n = 430) was 9.8% (medical diagnosis and Rome III). Athletes with IBS experienced more frequent symptoms during exercise as well as at rest; however, only 47.6% had consulted a medical professional. Over 56% of athletes experienced at least 1 symptom sometimes, often, or always during training and competition and 18.6% had symptoms that sometimes or often interrupted/prevented training. Almost half (45.8%) of athletes and 80.0% of athletes with IBS reported trying nutritional modifications to help ease symptoms while 20.6% and 52.4% used over-the-counter medications, respectively. Novelty Most endurance athletes who suffer from IBS are undiagnosed, while even more experience GI symptoms but do not fit diagnostic criteria. Despite using various symptom management methods, endurance athletes are still experiencing symptoms and could potentially benefit from current IBS-mitigating strategies.
Collapse
Affiliation(s)
- Lauren A Killian
- Division of Nutritional Sciences, College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Soo-Yeun Lee
- Department of Food Science and Human Nutrition, College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| |
Collapse
|
5
|
de Moraes WMAM, de Moura FC, da Costa Moraes TC, Oliveira de Sousa LG, Dos Santos Rosa T, Schoenfeld BJ, Machado Maia FM, Prestes J. Oxidative stress, inflammation, psychological status, and severity of respiratory infections are negatively affected during the pre-contest period in amateur bodybuilders. Appl Physiol Nutr Metab 2018; 44:468-476. [PMID: 30248274 DOI: 10.1139/apnm-2018-0430] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined whether off-season (OffS) and pre-contest (PreC) periods affect blood oxidative stress, inflammatory, immunological, and psychological markers in 20 bodybuilders. The athletes recorded their food intake (3-day record), physical activities, mood states (Profile of Mood States, POMS), recovery-stress (Recovery-Stress Questionnaire for Athletes, RESTQ-Sport), and upper respiratory symptoms (Wisconsin Upper Respiratory Symptom Survey, WURSS-21), and blood was obtained for biochemical analysis. Almost all athletes were in positive energy balance during OffS, while bodybuilders presented markedly restricted energy intake (∼45%) leading to loss of weight (-9%) and fat mass (-45%) with preservation of fat-free mass in PreC. Protein intake was high during both periods, while lipid and carbohydrate intakes were reduced ∼50% in PreC. Almost all athletes consumed 100% of the Recommended Dietary Allowance (RDA) for micronutrients in OffS, while 45% and 75% of the athletes had intakes below the RDA for vitamins A and E in PreC. Oxidative damage to lipids (thiobarbituric acid reactive substances, TBARS), protein carbonyls, and the TBARS/total antioxidant capacity ratio increased in PreC (32%, 27%, 60%), as did plasma tumor necrosis factor α (4-fold) and WURSS-21 scores (25%). There were no significant changes in serum catalase, glutathione reductase, and superoxide dismutase activities nor in interleukin 1β and immunoglobulins. In PreC, POMS showed negative changes in vigor (-20%), fatigue (23%), and total mood disturbance (35%), and RESTQ-Sport showed alterations for general and sport stress (34% and 50%, respectively) and sport recovery (-23%). Thus, PreC negatively affects nutrient intake, which may worsen oxidative stress, inflammation, psychological status, and the severity of respiratory infections in bodybuilders.
Collapse
Affiliation(s)
| | - Felipe Carmo de Moura
- b Postgraduate Program in Biotechnology, Ceara Federal University, Ceara 60020-181, Brazil
| | | | - Luís Gustavo Oliveira de Sousa
- d Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-900, Brazil
| | - Thiago Dos Santos Rosa
- a Postgraduate Program on Physical Education, Catholic University of Brasilia, Brasília, Federal District 71966-700, Brazil
| | - Brad J Schoenfeld
- e Department of Health Sciences, CUNY Lehman College, Bronx, NY 10468, USA
| | | | - Jonato Prestes
- a Postgraduate Program on Physical Education, Catholic University of Brasilia, Brasília, Federal District 71966-700, Brazil
| |
Collapse
|
6
|
Leicht AS, Halliday A, Sinclair WH, D'Auria S, Buchheit M, Kenny GP, Stanley J. Heart rate variability responses to acute and repeated postexercise sauna in trained cyclists. Appl Physiol Nutr Metab 2018; 43:704-710. [PMID: 29444412 DOI: 10.1139/apnm-2017-0581] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Short- to medium-term (i.e., 4-14 days) heating protocols induce physiological adaptations including improved cardiac autonomic modulations, as assessed using heart rate variability, which may contribute to greater exercise performance. Whether similar cardiac autonomic changes occur during an intense heating protocol (sauna) reported to increase plasma volume in athletes remains to be confirmed. This study examined changes in heart rate and its variability during a single extreme heat (sauna) exposure and repeated exposures in athletes. Six well-trained male cyclists undertook sauna bathing (30 min, 87 °C, 11% relative humidity) immediately after normal training over 10 consecutive days. Heart rate recordings were obtained during each sauna bout. Heart rate and its variability (natural logarithm of root mean square of successive differences, lnRMSSD) were analysed during 10-min periods within the first bout, and changes in heart rate and lnRMSSD were analysed during each bout via magnitude-based inferences. During the first sauna bout, heart rate was almost certainly increased (∼32%, effect size 1.68) and lnRMSSD was almost certainly reduced (∼62%, effect size -5.21) from the first to the last 10-min period, indicating reduced parasympathetic and (or) enhanced sympathetic modulations. Acute exposure to extreme heat stress via sauna produced alterations in heart rate and cardiac autonomic modulations with successive postexercise heat exposures producing unclear changes over a 10-day period. The physiological benefits of intense heating via sauna on cardiac control in athletes remain to be elucidated.
Collapse
Affiliation(s)
- Anthony S Leicht
- a Sport and Exercise Science, James Cook University, Townsville, 4811, Australia
| | - Aaron Halliday
- a Sport and Exercise Science, James Cook University, Townsville, 4811, Australia
| | - Wade H Sinclair
- a Sport and Exercise Science, James Cook University, Townsville, 4811, Australia
| | - Shaun D'Auria
- b Performance Science, Queensland Academy of Sport, Brisbane, 4111, Australia
| | - Martin Buchheit
- c Sport Science Unit, Myorobie Association, Montvalezan, 73700, France
| | - Glen P Kenny
- d Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Jamie Stanley
- e Physiology Department, South Australian Sports Institute, Adelaide, 5025, Australia
| |
Collapse
|
7
|
Goto K, Kasai N, Kojima C, Ishibashi A. Postexercise serum hepcidin response to repeated sprint exercise under normoxic and hypoxic conditions. Appl Physiol Nutr Metab 2017; 43:221-226. [PMID: 28961407 DOI: 10.1139/apnm-2017-0418] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We determined the effects of repeated sprint exercise under normoxic and hypoxic conditions on serum hepcidin levels. Ten male athletes (age: 20.9 ± 0.3 years; height: 175.7 ± 6.0 cm; weight: 67.3 ± 6.3 kg) performed 2 exercise trials under normoxic (NOR; fraction of inspiratory oxygen (FiO2): 20.9%) or hypoxic conditions (HYPO; FiO2: 14.5%). The exercise consisted of 3 sets of 5 × 6 s of maximal pedaling (30-s rest periods between sprints, 10-min rest periods between sets). Blood samples were collected before exercise, immediately after exercise, and 1 and 3 h after exercise. Serum hepcidin levels were significantly elevated after exercise in both trials (both P < 0.01), with no significant difference between the trials. The postexercise blood lactate levels were significantly higher in the HYPO than the NOR (P < 0.05). Both trials caused similar increases in plasma interleukin-6 and serum iron levels (P < 0.001), with no significant difference between the trials. A significant interaction (trial × time) was apparent in terms of serum erythropoietin (EPO) levels (P = 0.003). The EPO level was significantly higher in the HYPO than the NOR at 3 h after exercise (P < 0.05). In conclusion, repeated sprint exercise significantly increased serum hepcidin levels to similar extent in 2 trials, despite differences in the inspired oxygen concentrations during both the exercise and the 3-h postexercise period.
Collapse
Affiliation(s)
- Kazushige Goto
- a Graduate School of Sports and Health Science, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
| | - Nobukazu Kasai
- a Graduate School of Sports and Health Science, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
| | - Chihiro Kojima
- a Graduate School of Sports and Health Science, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
| | - Aya Ishibashi
- a Graduate School of Sports and Health Science, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan.,b Department of Sports Science, Japan Institute of Sports Science, Kitaku, Tokyo, 525-8577, Japan
| |
Collapse
|
8
|
Abstract
Substantial evidence supports the increased consumption of high-quality protein to achieve optimal health outcomes. A growing body of research indicates that protein intakes well above the current Recommended Dietary Allowance help to promote healthy aging, appetite regulation, weight management, and goals aligned with athletic performance. Higher protein intakes may help prevent age-related sarcopenia, the loss of muscle mass, and strength that predisposes older adults to frailty, disability, and loss of autonomy. Higher protein diets also improve satiety and lead to greater reductions in body weight and fat mass compared with standard protein diets, and may therefore serve as a successful strategy to help prevent and/or treat obesity. Athletes can also benefit from higher protein intakes to maximize athletic performance given the critical role protein plays in stimulating muscle protein remodelling after exercise. Protein quality, per meal dose, and timing of ingestion are also important considerations. Despite persistent beliefs to the contrary, we can find no evidence-based link between higher protein diets and renal disease or adverse bone health. This brief synopsis highlights recent learnings based on presentations at the 2015 Canadian Nutrition Society conference, Advances in Protein Nutrition across the Lifespan. Current evidence indicates intakes in the range of at least 1.2 to 1.6 g/(kg·day) of high-quality protein is a more ideal target for achieving optimal health outcomes in adults.
Collapse
Affiliation(s)
- Stuart M Phillips
- a Department of Kinesiology, Exercise Metabolism Research Group - Protein Metabolism Research Lab, McMaster University, 1280 Main Street W., Hamilton, ON L8S 4K1, Canada
| | - Stéphanie Chevalier
- b Department of Medicine, McGill University, Hamilton, ON L8S 4K1, Canada
- c School of Dietetics and Human Nutrition, McGill University, McGill University Health Centre-Research Institute, Crabtree Nutrition Laboratories, 1001, boul. Décarie, E02.7226 Montréal, QC H4A 3J1, Canada
| | - Heather J Leidy
- d Department of Nutrition and Exercise Physiology, School of Medicine, University of Missouri, Columbia, MO 65203, USA
| |
Collapse
|
9
|
Andrade EF, Lobato RV, de Araújo TV, Orlando DR, Vicente da Costa D, de Oliveira Silva V, Rogatto GP, Zangeronimo MG, Rosa PV, Pereira LJ. Adaptation to physical training in rats orally supplemented with glycerol. Can J Physiol Pharmacol 2016; 93:63-9. [PMID: 25474597 DOI: 10.1139/cjpp-2014-0312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We evaluated training adaptation and physical performance parameters in rats orally supplemented with glycerol, glucose, or saline, and submitted to moderate aerobic exercise. Thirty male rats were trained for 6 weeks and administered the supplements during the last 4 weeks of the experiment. Animals were distributed in a completely randomized factorial 2 × 3 design (with or without exercise and 3 substrates). Data were subjected to analysis of variance (ANOVA) and means were compared using the Student-Newmann-Keuls test at 5%. Among the trained animals, none of the substances caused differences in the percentages of protein, fat, or water content in the carcass. Compared with the sedentary animals, the trained animals supplemented with saline and glucose showed a higher protein percentage in the carcass. The relative mass of the heart and adrenal glands was higher in the trained animals. Glycerol improved the protein content in non-trained animals and increased the relative adrenal mass in both groups. Glycerol reduced the variation in levels of lactate and aspartate aminotransferase (AST) during the last exercise session. There was no difference between groups regarding the relative mass of the thymus and gastrocnemius or with the diameter of muscle fibers or the neutrophil-lymphocyte ratio. Supplementation with glycerol was efficient at attenuating variation in AST and lactate levels during exercise.
Collapse
|
10
|
Taylor LW, Wilborn C, Roberts MD, White A, Dugan K. Eight weeks of pre- and postexercise whey protein supplementation increases lean body mass and improves performance in Division III collegiate female basketball players. Appl Physiol Nutr Metab 2015; 41:249-54. [PMID: 26842665 DOI: 10.1139/apnm-2015-0463] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined if 8 weeks of whey protein (WP) supplementation improved body composition and performance measures in NCAA Division III female basketball players. Subjects were assigned to consume 24 g WP (n = 8; age, 20 ± 2 years; height, 170 ± 6 cm; weight, 66.0 ± 3.1 kg) or 24 g of maltodextrin (MD) (n = 6; age, 21 ± 3 years; height, 169 ± 6 cm; weight, 68.2 ± 7.6 kg) immediately prior to and following training (4 days/week anaerobic and resistance training) for 8 weeks. Prior to (T1) and 8 weeks following supplementation (T2), subjects underwent dual X-ray absorptiometry body composition assessment as well as performance tests. The WP group gained lean mass from T1 to T2 (+1.4 kg, p = 0.003) whereas the MD group trended to gain lean mass (+0.4 kg, p = 0.095). The WP group also lost fat mass from T1 to T2 (-1.0 kg, p = 0.003) whereas the MD group did not (-0.5 kg, p = 0.41). The WP group presented greater gains in 1-repetition maximum (1RM) bench press (+4.9 kg) compared with the MD group (+2.3 kg) (p < 0.05). Moreover, the WP group improved agility from T1 to T2 (p = 0.001) whereas the MD group did not (p = 0.38). Both groups equally increased leg press 1RM, vertical jump, and broad jump performances. This study demonstrates that 8 weeks of WP supplementation improves body composition and select performance variables in previously trained female athletes.
Collapse
Affiliation(s)
- Lemuel W Taylor
- a Department of Exercise and Sport Science, Human Performance Lab, University of Mary Hardin-Baylor, Belton, TX 76513, USA
| | - Colin Wilborn
- a Department of Exercise and Sport Science, Human Performance Lab, University of Mary Hardin-Baylor, Belton, TX 76513, USA
| | | | - Andrew White
- a Department of Exercise and Sport Science, Human Performance Lab, University of Mary Hardin-Baylor, Belton, TX 76513, USA
| | - Kristen Dugan
- a Department of Exercise and Sport Science, Human Performance Lab, University of Mary Hardin-Baylor, Belton, TX 76513, USA
| |
Collapse
|