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Galy O, Washif JA, Wattelez G, Farooq A, Hue O, Sandbakk Ø, Beaven CM, Seiler S, Ding D, Pyne DB, Chamari K. Training strategies of 10,074 athletes from 121 countries based on human development index in early COVID-19 lockdown. Sci Rep 2024; 14:8866. [PMID: 38632327 PMCID: PMC11024144 DOI: 10.1038/s41598-024-59375-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
The aim of this study was to investigate relationships between changes in training practices and human development index (HDI) levels, and identify strategies employed by athletes who consistently maintained their training quantity during the first 100 days of the COVID-19 pandemic. A total of 10,074 athletes (5290 amateur and 4787 professional athletes from 121 countries) completed an online survey between 17 May to 5 July 2020. We explored their training practices, including specific questions on training frequency, duration and quantity before and during lockdown (March-June 2020), stratified according to the human development index (HDI): low-medium, high, or very high HDI. During the COVID-19 lockdown, athletes in low-medium HDI countries focused on innovative training. Nevertheless, women and amateur athletes experienced a substantial reduction in training activity. Performance-driven athletes and athletes from higher HDI indexed countries, were likely to have more opportunities to diversify training activities during lockdowns, facilitated by the flexibility to perform training away from home. Factors such as lockdown rules, socioeconomic environment, and training education limited training diversification and approaches, particularly in low-medium and high HDI countries. Athletes (amateurs and professionals) who maintained the quantity of training during lockdown appeared to prioritize basic cardiovascular and strength training, irrespective of HDI level. Modifying training and fitness programs may help mitigate the decrease in training activities during lockdowns. Customized training prescriptions based on gender, performance, and HDI level will assist individuals to effectively perform and maintain training activities during lockdowns, or other challenging (lockdown-like) situations.
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Affiliation(s)
- Olivier Galy
- Interdisciplinary Laboratory for Research in Education, University of New Caledonia, Nouméa, New Caledonia.
| | - Jad Adrian Washif
- Sports Performance Division, Institut Sukan Negara Malaysia (National Sports Institute of Malaysia), Kuala Lumpur, Malaysia
| | - Guillaume Wattelez
- Interdisciplinary Laboratory for Research in Education, University of New Caledonia, Nouméa, New Caledonia
| | | | - Olivier Hue
- Laboratoire ACTES, Université des Antilles, Pointe-À-Pitre, Guadeloupe, France
| | - Øyvind Sandbakk
- Centre for Elite Sports Research, Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Stephen Seiler
- Department of Sport Science and Physical Education, Faculty of Health and Sports Sciences, University of Agder, Kristiansand, Norway
| | - Ding Ding
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - David B Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, Australia
| | - Karim Chamari
- Higher Institute of Sport and Physical Education, ISSEP Ksar Saïd, Manouba University, Manouba, Tunisia
- Naufar Wellness and Recovery Center, Naufar Wellness and Recovery Center, Doha, Qatar
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Washif JA, Pagaduan J, James C, Dergaa I, Beaven CM. Artificial intelligence in sport: Exploring the potential of using ChatGPT in resistance training prescription. Biol Sport 2024; 41:209-220. [PMID: 38524820 PMCID: PMC10955742 DOI: 10.5114/biolsport.2024.132987] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/22/2023] [Accepted: 10/28/2023] [Indexed: 03/26/2024] Open
Abstract
OpenAI's Chat Generative Pre-trained Transformer (ChatGPT) technology enables conversational interactions with applications across various fields, including sport. Here, ChatGPT's proficiency in designing a 12-week resistance training programme, following specific prompts, was investigated. GPT3.5 and GPT4.0 versions were requested to design 12-week resistance training programmes for male and female hypothetical subjects (20-years-old, no injury, and 'intermediate' resistance training experience). Subsequently, GPT4.0 was requested to design an 'advanced' training programme for the same profiles. The proposed training programmes were compared with established guidelines and literature (e.g., National Strength and Conditioning Association textbook), and discussed. ChatGPT suggested 12-week training programmes comprising three, 4-week phases, each with different objectives (e.g., hypertrophy/strength). GPT3.5 proposed a weekly frequency of ~3 sessions, load intensity of 70-85% of one repetition-maximum, repetition range of 4-8 (2-4 sets), and tempo of 2/0/2 (eccentric/pause/concentric/'pause'). GPT4.0 proposed intermediate- and advanced programme, with a frequency of 5 or 4 sessions, 60-90% or 70-95% intensity, 3-5 sets or 3-6 sets, 5-12 or 3-12 repetitions, respectively. GPT3.5 proposed rest intervals of 90-120 s, and exercise tempo of 2/0/2. GPT4.0 proposed 60-180 (intermediate) or 60-300 s (advanced), with exercise tempo of 2/1/2 for intermediates, and 3/0/1/0, 2/0/1/0, and 1/0/1/0 for advanced programmes. All derived programmes were objectively similar regardless of sex. ChatGPT generated training programmes which likely require additional fine-tuning before application. GPT4.0 synthesised more information than GPT3.5 in response to the prompt, and demonstrated recognition awareness of training experience (intermediate vs advanced). ChatGPT may serve as a complementary tool for writing 'draft' programme, but likely requires human expertise to maximise training programme effectiveness.
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Affiliation(s)
- Jad Adrian Washif
- Sports Performance Division, National Sports Institute of Malaysia, Kuala Lumpur, Malaysia
| | - Jeffrey Pagaduan
- Institute of Active Lifestyle, Palacký University Olomouc, Czech Republic
| | - Carl James
- Department of Sport, Physical Education and Health, Hong Kong Baptist University. Kowloon Tong, Hong Kong SAR
| | - Ismail Dergaa
- Primary Health Care Corporation (PHCC), Doha, Qatar
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
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Fenemor SP, Gill ND, Driller MW, Mills B, Sella F, Beaven CM. Small Performance Effects of a Practical Mixed-Methods Cooling Strategy in Elite Team Sport Athletes. Res Q Exerc Sport 2023; 94:1162-1168. [PMID: 36167423 DOI: 10.1080/02701367.2022.2125158] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Purpose: The ingestion of ice slurry and application of ice towels can elicit favorable physiological, perceptual, and performance benefits when used individually; however, the combined use and effectiveness of these practical cooling strategies have not been assessed using a sport-specific performance test, based on actual match demands, in an elite team sport context. Methods: Ten non-heat acclimated elite male rugby sevens athletes undertook two cycling heat response tests (HRT) designed to be specific to the demands of rugby sevens in hot conditions (35°C, 80% rH). In a crossover design, the HRTs were conducted with (COOLING) and without (HOT) the combined use of internal (ice slushy ingestion) and external (application of ice towels to the head, neck, and face) pre- and per-cooling strategies. Physiological, perceptual, and performance variables were monitored throughout each HRT. Results: COOLING resulted in reductions in mean tympanic temperature (-0.4 ± 0.2°C; d = 1.18); mean heart rate (-5 ± 8 bpm; d = 0.53); thermal discomfort (-0.5 ± 0.9 AU; d = 0.48); and thirst sensation (-1.0 ± 1.1 AU; d = 0.61) during the HRT. COOLING also resulted in a small increase in 4-min time trial power output (by 7 ± 33 W, ~3%; d = 0.35) compared to HOT. Discussion: A combination of internal and external pre- and per-cooling strategies can result in a range of small physiological, perceptual, and performance benefits during a rugby sevens specific HRT, compared to undertaking no cooling. Practitioners should include such strategies when performing in hot conditions.
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Affiliation(s)
- S P Fenemor
- University of Waikato Adams Centre for High Performance
- High Performance Sport New Zealand
| | - N D Gill
- University of Waikato Adams Centre for High Performance
- New Zealand Rugby Union
| | | | | | - F Sella
- University of Waikato Adams Centre for High Performance
| | - C M Beaven
- University of Waikato Adams Centre for High Performance
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Wintershoven K, Beaven CM, Gill ND, McMaster DT. New Zealand Youth Rugby Sevens: A Comparative Match Demands Study. J Funct Morphol Kinesiol 2023; 8:jfmk8020041. [PMID: 37092373 PMCID: PMC10123691 DOI: 10.3390/jfmk8020041] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/16/2023] [Accepted: 03/27/2023] [Indexed: 04/25/2023] Open
Abstract
Rugby sevens has established itself on the world stage since its inclusion in the 2016 Olympics. Participation among New Zealand (NZ) youth has surged. Sevens games have specific high demands, but little is known about these competitive demands in regards to youth. Two NZ male youth squads (U15, n = 13; U19, n = 14) were monitored during a national sevens tournament. Microsensor technology captured heart rate (HR) and kinematic performance. The rating of perceived exertion (RPE) was collected for U15 matches only. U19 and U15 players ran 108 ± 11 and 116 ± 13 m·min-1 at an average speed (VAVG) of 6.5 ± 0.6 and 6.9 ± 0.8 km·h-1. Peak speeds (VPEAK) reached 33.7 km·h-1, and high-intensity running distance (HIRD) averaged 252 ± 102 m. U15 (44.3 ± 9.2 game-1) and U19 (39.4 ± 6.1 game-1) showed different sprint rates. U15 covered more moderate-velocity distance (20-80% VMAX) and less low-velocity distance (<20% VMAX). RPE was 13 ± 1 (U15). An average HR of 90.0 ± 3.9% HRMAX was recorded. Upwards of 57% of game time was played at >95% HRMAX. Youth sevens competition is specifically demanding. U15 can experience greater loads than older peers in rugby. Coaches can use this information to optimize players' physical development.
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Affiliation(s)
- Koen Wintershoven
- Te Huataki Waiora School of Health, University of Waikato, Adams Centre for High Performance, Mount Maunganui, Tauranga 3116, New Zealand
| | - Christopher Martyn Beaven
- Te Huataki Waiora School of Health, University of Waikato, Adams Centre for High Performance, Mount Maunganui, Tauranga 3116, New Zealand
| | - Nicholas David Gill
- Te Huataki Waiora School of Health, University of Waikato, Adams Centre for High Performance, Mount Maunganui, Tauranga 3116, New Zealand
- All Blacks, New Zealand Rugby Union, Wellington 6011, New Zealand
| | - Daniel Travis McMaster
- Te Huataki Waiora School of Health, University of Waikato, Adams Centre for High Performance, Mount Maunganui, Tauranga 3116, New Zealand
- All Blacks & Black Ferns Sevens, New Zealand Rugby Union, Wellington 6011, New Zealand
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Washif JA, Kok LY, James C, Beaven CM, Farooq A, Pyne DB, Chamari K. Athlete level, sport-type, and gender influences on training, mental health, and sleep during the early COVID-19 lockdown in Malaysia. Front Physiol 2023; 13:1093965. [PMID: 36714309 PMCID: PMC9875133 DOI: 10.3389/fphys.2022.1093965] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/26/2022] [Indexed: 01/13/2023] Open
Abstract
Purpose: We evaluated the extent of changes in training practices, recovery, mental health, and sleep patterns of athletes during the early COVID-19 lockdown in a single country-cohort. Methods: A total of 686 athletes (59% male, 41% female; 9% World Class, 28% International, 29% National, 26% State, 8% Recreational) from 50 sports (45% individual, 55% team) in Malaysia completed an online, survey-based questionnaire study. The questions were related to training practices (including recovery and injury), mental health, and sleep patterns. Results: Relative to pre-lockdown, training intensity (-34%), frequency (-20%, except World-Class), and duration (-24%-59%, especially International/World-Class) were compromised, by the mandated lockdown. During the lockdown, more space/access (69%) and equipment (69%) were available for cardiorespiratory training, than technical and strength; and these resources favoured World-Class athletes. Most athletes trained for general strength/health (88%) and muscular endurance (71%); and some used innovative/digital training tools (World-Class 48% vs. lower classification-levels ≤34%). More World-Class, International, and National athletes performed strength training, plyometrics, and sport-specific technical skills with proper equipment, than State/Recreational athletes. More females (42%) sourced training materials from social media than males (29%). Some athletes (38%) performed injury prevention exercises; 18% had mild injuries (knees 29%, ankles 26%), and 18% received a medical diagnosis (International 31%). Lower-level athletes (e.g., State 44%) disclosed that they were mentally more vulnerable; and felt more anxious (36% vs. higher-levels 14%-21%). Sleep quality and quantity were "normal" (49% for both), "improved" (35% and 27%), and only 16% and 14% (respectively) stated "worsened" sleep. Conclusion: Lockdown compromised training-related practices, especially in lower-level athletes. Athletes are in need of assistance with training, and tools to cope with anxiety that should be tailored to individual country requirements during lockdown situations. In particular, goal-driven (even if it is at home) fitness training, psychological, financial, and lifestyle support can be provided to reduce the difficulties associated with lockdowns. Policies and guidelines that facilitate athletes (of all levels) to train regularly during the lockdown should be developed.
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Affiliation(s)
- Jad Adrian Washif
- Sports Performance Division, Institut Sukan Negara Malaysia (National Sports Institute of Malaysia), Kuala Lumpur, Malaysia,*Correspondence: Jad Adrian Washif,
| | - Lian-Yee Kok
- Department of Sport and Exercise Science, Faculty of Applied Sciences, Tunku Abdul Rahman University of Management and Technology, Kuala Lumpur, Malaysia
| | - Carl James
- Sports Performance Division, Institut Sukan Negara Malaysia (National Sports Institute of Malaysia), Kuala Lumpur, Malaysia,Scientific Conditioning Centre, Hong Kong Sports Institute, Hong Kong, Hong Kong SAR, China
| | - Christopher Martyn Beaven
- Division of Health, Engineering Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Abdulaziz Farooq
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - David B. Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Karim Chamari
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
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6
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Washif JA, Farooq A, Krug I, Pyne DB, Verhagen E, Taylor L, Wong DP, Mujika I, Cortis C, Haddad M, Ahmadian O, Al Jufaili M, Al-Horani RA, Al-Mohannadi AS, Aloui A, Ammar A, Arifi F, Aziz AR, Batuev M, Beaven CM, Beneke R, Bici A, Bishnoi P, Bogwasi L, Bok D, Boukhris O, Boullosa D, Bragazzi N, Brito J, Cartagena RPP, Chaouachi A, Cheung SS, Chtourou H, Cosma G, Debevec T, DeLang MD, Dellal A, Dönmez G, Driss T, Peña Duque JD, Eirale C, Elloumi M, Foster C, Franchini E, Fusco A, Galy O, Gastin PB, Gill N, Girard O, Gregov C, Halson S, Hammouda O, Hanzlíková I, Hassanmirzaei B, Haugen T, Hébert-Losier K, Muñoz Helú H, Herrera-Valenzuela T, Hettinga FJ, Holtzhausen L, Hue O, Dello Iacono A, Ihalainen JK, James C, Janse van Rensburg DC, Joseph S, Kamoun K, Khaled M, Khalladi K, Kim KJ, Kok LY, MacMillan L, Mataruna-Dos-Santos LJ, Matsunaga R, Memishi S, Millet GP, Moussa-Chamari I, Musa DI, Nguyen HMT, Nikolaidis PT, Owen A, Padulo J, Pagaduan JC, Perera NP, Pérez-Gómez J, Pillay L, Popa A, Pudasaini A, Rabbani A, Rahayu T, Romdhani M, Salamh P, Sarkar AS, Schillinger A, Seiler S, Setyawati H, Shrestha N, Suraya F, Tabben M, Trabelsi K, Urhausen A, Valtonen M, Weber J, Whiteley R, Zrane A, Zerguini Y, Zmijewski P, Sandbakk Ø, Ben Saad H, Chamari K. Correction to: Training During the COVID-19 Lockdown: Knowledge, Beliefs, and Practices of 12,526 Athletes from 142 Countries and Six Continents. Sports Med 2022:10.1007/s40279-022-01776-y. [PMID: 36272061 PMCID: PMC9589640 DOI: 10.1007/s40279-022-01776-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jad Adrian Washif
- Sports Performance Division, Institut Sukan Negara Malaysia (National Sports Institute of Malaysia), Kuala Lumpur, Malaysia.
| | - Abdulaziz Farooq
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Isabel Krug
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - David B Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Evert Verhagen
- Department of Public and Occupational Health, Amsterdam Collaboration on Health & Safety in Sports, Amsterdam Movement Sciences, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Lee Taylor
- School of Sport, Exercise and Health Sciences, National Centre for Sport and Exercise Medicine (NCSEM), Loughborough University, Loughborough, UK
- Human Performance Research Centre, University of Technology Sydney, Sydney, Australia
- Sport & Exercise Discipline Group, Faculty of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Del P Wong
- School of Nursing and Health Studies, The Open University of Hong Kong, Ho Man Tin, Hong Kong
| | - Iñigo Mujika
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country, Leioa, Basque Country, Spain
- Exercise Science Laboratory, Faculty of Medicine, School of Kinesiology, Universidad Finis Terrae, Santiago, Chile
| | - Cristina Cortis
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Cassino, Italy
| | - Monoem Haddad
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | - Omid Ahmadian
- Medical Committee of Tehran Football Association, Tehran, Iran
| | - Mahmood Al Jufaili
- Emergency Medicine Department, Sultan Qaboos University Hospital, Alkhoudh, Oman
| | | | | | - Asma Aloui
- Physical Activity, Sport & Health Research Unit (UR18JS01), National Sport Observatory, Tunis, Tunisia
- High Institute of Sport and Physical Education, University of Gafsa, Gafsa, Tunisia
| | - Achraf Ammar
- Institute of Sport Sciences, Otto-Von-Guericke University, 39104, Magdeburg, Germany
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS, UPL, Paris Nanterre University, Nanterre, France
| | - Fitim Arifi
- Physical Culture, Sports and Recreation, College Universi, Pristina, Kosovo
- Faculty of Physical Education and Sport, University of Tetova, Tetovo, North Macedonia
| | - Abdul Rashid Aziz
- Sport Science and Sport Medicine, Singapore Sport Institute, Sport Singapore, Singapore, Singapore
| | - Mikhail Batuev
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK
| | - Christopher Martyn Beaven
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Ralph Beneke
- Division of Medicine, Training and Health, Institute of Sport Science and Motology, Philipps University Marburg, Marburg, Germany
| | - Arben Bici
- Applied Motion Department, Institute of Sport Research, Sports University of Tirana, Tirana, Albania
| | - Pallawi Bishnoi
- Physiotherapy Department, Minerva Punjab Academy and Football Club, Mohali, Punjab, India
| | - Lone Bogwasi
- Department of Orthopedics, Nyangabgwe Hospital, Francistown, Botswana
- Botswana Football Association Medical Committee, Gaborone, Botswana
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Daniel Bok
- Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia
| | - Omar Boukhris
- Physical Activity, Sport & Health Research Unit (UR18JS01), National Sport Observatory, Tunis, Tunisia
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Daniel Boullosa
- INISA, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
- Sport and Exercise Science, James Cook University, Townsville, QLD, Australia
| | - Nicola Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, M3J 1P3, Canada
| | - Joao Brito
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
| | | | - Anis Chaouachi
- Tunisian Research Laboratory, Sport Performance Optimisation, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia
- Sports Performance Research Institute New Zealand, AUT University, Auckland, New Zealand
| | - Stephen S Cheung
- Department of Kinesiology, Brock University, St. Catharines, ON, Canada
| | - Hamdi Chtourou
- Physical Activity, Sport & Health Research Unit (UR18JS01), National Sport Observatory, Tunis, Tunisia
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Germina Cosma
- Faculty of Physical Education and Sport, University of Craiova, Craiova, Romania
| | - Tadej Debevec
- Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
- Department of Automation, Biocybernetics and Robotics, Jozef Stefan Institute, Ljubljana, Slovenia
| | | | - Alexandre Dellal
- Sport Science and Research Department, Centre Orthopédique Santy, FIFA Medical Centre of Excellence, Lyon, France
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM EA 7424), Claude Bernard University (Lyon 1), Lyon, France
| | - Gürhan Dönmez
- Department of Sports Medicine, Hacettepe University, Ankara, Turkey
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS, UPL, Paris Nanterre University, Nanterre, France
| | | | | | - Mohamed Elloumi
- Health and Physical Education Department, Prince Sultan University, Riyadh, Kingdom of Saudi Arabia
| | - Carl Foster
- Department of Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, WI, USA
| | - Emerson Franchini
- Sport Department, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Andrea Fusco
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Cassino, Italy
| | - Olivier Galy
- Interdisciplinary Laboratory for Research in Education, EA 7483, University of New Caledonia, Avenue James Cook, 98800, Nouméa, New Caledonia
| | - Paul B Gastin
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC, Australia
| | - Nicholas Gill
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
- New Zealand All Blacks, New Zealand Rugby, Wellington, New Zealand
| | - Olivier Girard
- School of Human Science (Exercise and Sport Science), The University of Western Australia, Perth, WA, Australia
| | - Cvita Gregov
- Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia
| | - Shona Halson
- School of Behavioural and Health Sciences, McAuley at Banyo, Australian Catholic University, Brisbane, QLD, Australia
| | - Omar Hammouda
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UPL, UFR STAPS, Paris Nanterre University, Nanterre, France
- Research Laboratory, Molecular Bases of Human Pathology, Faculty of Medicine, LR19ES13, University of Sfax, Sfax, Tunisia
| | - Ivana Hanzlíková
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Bahar Hassanmirzaei
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Iran Football Medical Assessments and Rehabilitation Center, IFMARC, Tehran, Iran
| | - Thomas Haugen
- School of Health Sciences, Kristiania University College, Oslo, Norway
| | - Kim Hébert-Losier
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Hussein Muñoz Helú
- Department of Economic-Administrative Sciences, Universidad Autónoma de Occidente, Los Mochis, Sinaloa, México
| | - Tomás Herrera-Valenzuela
- Department of Sport Science and Health, Universidad Santo Tomás, Santiago, Chile
- University of Santiago of Chile (USACH), Sciences of Physical Activity, Sports and Health School, Santiago, Chile
| | - Florentina J Hettinga
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK
| | - Louis Holtzhausen
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
- Weil-Cornell Medical College in Qatar, Doha, Qatar
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Department of Exercise and Sports Science, University of the Free State, Bloemfontein, South Africa
| | - Olivier Hue
- Laboratoire ACTES, UFR-STAPS, Université Des Antilles, Pointe à Pitre, France
| | - Antonio Dello Iacono
- School of Health and Life Sciences, University of the West of Scotland, Hamilton, UK
| | - Johanna K Ihalainen
- Faculty of Sport and Health Sciences, Biology of Physical Activity, University of Jyväskylä, Jyväskylä, Finland
| | - Carl James
- Sports Performance Division, Institut Sukan Negara Malaysia (National Sports Institute of Malaysia), Kuala Lumpur, Malaysia
| | - Dina C Janse van Rensburg
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- Medical Board Member, International Netball Federation, Manchester, UK
| | - Saju Joseph
- High Performance Director, Sports Authority of India, Bangalore, India
| | - Karim Kamoun
- Tunisian Research Laboratory, Sport Performance Optimisation, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia
| | | | - Karim Khalladi
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Kwang Joon Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Lian-Yee Kok
- Department of Sport Science, Tunku Abdul Rahman University College, Kuala Lumpur, Malaysia
| | - Lewis MacMillan
- Sport Science Department, Fulham Football Club, Fulham, London, UK
| | - Leonardo Jose Mataruna-Dos-Santos
- Centre for Trust, Peace and Social Relation, Coventry University, Coventry, UK
- Department of Sport Management, Faculty of Management, Canadian University of Dubai, Dubai, United Arab Emirates
- Programa Avancado de Cultura Contemporanea, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ryo Matsunaga
- Antlers Sports Clinic, Kashima, Ibaraki, Japan
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Shpresa Memishi
- Faculty of Physical Education, University of Tetovo, Tetovo, North Macedonia
| | - Grégoire P Millet
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - Imen Moussa-Chamari
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | - Danladi Ibrahim Musa
- Department of Human Kinetics and Health Education, Kogi State University, Anyigba, Nigeria
| | | | | | - Adam Owen
- University Claude Bernard Lyon 1, Lyon, France
- Seattle Sounders Football Club, Seattle, WA, USA
| | - Johnny Padulo
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
| | - Jeffrey Cayaban Pagaduan
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, TAS, Australia
| | - Nirmala Panagodage Perera
- Sports Medicine, Australian Institute of Sport, Bruce, ACT, Australia
- University of Canberra Research Institute for Sport and Exercise (UCRISE), University of Canberra, Bruce, ACT, Australia
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Jorge Pérez-Gómez
- Health, Economy, Motricity and Education (HEME) Research Group, Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain
| | - Lervasen Pillay
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
- University of Witwatersrand, Wits Institute for Sports Health, Johannesburg, South Africa
| | - Arporn Popa
- Health and Sport Science Department, Educational Faculty, Mahasarakham University, Mahasarakham, Thailand
| | - Avishkar Pudasaini
- Medical Department, All Nepal Football Association (ANFA), Lalitpur, Nepal
| | - Alireza Rabbani
- Department of Exercise Physiology, College of Sport Sciences, University of Isfahan, Isfahan, Iran
| | - Tandiyo Rahayu
- Faculty of Sport Science, Universitas Negeri Semarang, Semarang, Indonesia
| | - Mohamed Romdhani
- Physical Activity, Sport & Health Research Unit (UR18JS01), National Sport Observatory, Tunis, Tunisia
| | - Paul Salamh
- Krannert School of Physical Therapy, University of Indianapolis, Indianapolis, IN, USA
| | | | | | - Stephen Seiler
- Department of Sports Science and Physical Education, University of Agder, Kristiansand, Norway
| | - Heny Setyawati
- Faculty of Sport Science, Universitas Negeri Semarang, Semarang, Indonesia
| | - Navina Shrestha
- Medical Department, All Nepal Football Association (ANFA), Lalitpur, Nepal
- Physiotherapy Department, BP Eyes Foundation CHEERS Hospital, Bhaktapur, Nepal
| | - Fatona Suraya
- Faculty of Sport Science, Universitas Negeri Semarang, Semarang, Indonesia
| | - Montassar Tabben
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax, Tunisia
| | - Axel Urhausen
- Sports Clinic, Centre Hospitalier de Luxembourg, Clinique d'Eich, Luxembourg, Luxembourg
- Luxembourg Institute of Research in Orthopedics, Sports Medicine and Science, Luxembourg, Luxembourg
- Human Motion, Orthopedics, Sports Medicine and Digital Methods, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | | | - Johanna Weber
- Institute for Sports Science, CAU of Kiel, Kiel, Germany
- Neurocognition and Action, University of Bielefeld, Bielefeld, Germany
| | - Rodney Whiteley
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
- University of Queensland, Brisbane, QLD, Australia
| | - Adel Zrane
- Department of Physiology and Lung Function Testing, Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia
- Faculty of Sciences of Bizerte, University of Carthage, Bizerte, Tunisia
- High Institute of Sports, Ksar Said, Tunis, Tunisia
| | - Yacine Zerguini
- FIFA Medical Centre of Excellence Algiers, Algiers, Algeria
- Medical Committee, Confederation of African Football, Giza, Egypt
| | - Piotr Zmijewski
- Jozef Pilsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Øyvind Sandbakk
- Centre for Elite Sports Research, Department of Neuromedicine and Movement Science, Norwegian, University of Science and Technology, Trondheim, Norway
| | - Helmi Ben Saad
- Laboratoire de Recherche "Insuffisance Cardiaque" (LR12SP09), Hôpital Farhat HACHED, Université de Sousse, Sousse, Tunisie
- Laboratoire de Physiologie, Faculté de Médicine de Sousse, Université de Sousse, Sousse, Tunisie
| | - Karim Chamari
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
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Fenemor S, Driller MW, Gill N, Mills B, Casadio J, Beaven CM. Practical application of a mixed active and passive heat acclimation protocol in elite male Olympic team sport athletes. Appl Physiol Nutr Metab 2022; 47:981-991. [PMID: 35793560 DOI: 10.1139/apnm-2022-0112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To investigate effectiveness and retention of heat acclimation (HA) integrated within an elite rugby sevens team training program, 12 elite male rugby sevens athletes undertook 10-days of mixed active/passive HA across two-weeks of normal training. Physiological and performance variables were assessed using a sport specific, repeated high-intensity heat-response test Pre-HA; after five days (Mid-HA); after 10 days (Post-HA); and 16-days post-HA (Decay). Resting, submaximal, and end-exercise core temperature were lower at Mid-HA (≤ -0.26 °C; d ≥-0.47), Post-HA (≤ -0.30 °C; d ≥-0.72), and Decay (≤ -0.29 °C; d ≥-0.56), compared to Pre-HA. Sweat rate was greater Post-HA compared to Pre-HA (0.3 ± 0.3 L·hr-1; d =0.63). Submaximal HR was lower at Mid (-9 ±4 bpm; d =-0.68) and Post-HA (-11 ± 4 bpm; d =-0.90) compared to Pre-HA. Mean and peak 6-s power output improved Mid-HA (83 ± 52 W; 112 ± 67 W; d ≥0.47) and Post-HA (125 ± 62 W; 172 ± 85 W; d ≥0.72) compared to Pre-HA. Improvements in HR and performance persisted at Decay (d ≥0.66). The initial five days of mixed-methods HA elicited many typical HA adaptations, with an additional five days eliciting further thermoregulatory, sudomotor, and performance improvements. Adaptations were well-retained after 16-days of normal training, without any further heat stimulus. The trial was retrospectively registered with the Australian New Zealand Clinical Trials Registry (ACTRN12622000732785).
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Affiliation(s)
- Stephen Fenemor
- University of Waikato, 3717, Te Huataki Waiora School of Health, Adams Centre for High Performance, Tauranga, Waikato, New Zealand.,High Performance Sport New Zealand, 540744, Auckland, New Zealand;
| | - Matthew W Driller
- La Trobe University School of Allied Health Human Services and Sport, 110570, Sport and Exercise Science, Bundoora, Victoria, Australia;
| | - Nicholas Gill
- University of Waikato, 3717, Te Huataki Waiora School of Health, Adams Centre for High Performance, Tauranga, Waikato, New Zealand.,New Zealand Rugby Union, Wellington, New Zealand;
| | - Blair Mills
- New Zealand Rugby Union, Wellington, New Zealand;
| | - Julia Casadio
- High Performance Sport New Zealand, 540744, Auckland, New Zealand;
| | - Christopher Martyn Beaven
- University of Waikato, 3717, Te Huataki Waiora School of Health, Adams Centre for High Performance, Tauranga, Waikato, New Zealand;
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Hébert-Losier K, Finlayson SJ, Lamb PF, Driller MW, Hanzlíková I, Dubois B, Esculier JF, Beaven CM. Kinematics of recreational male runners in "super", minimalist and habitual shoes. J Sports Sci 2022; 40:1426-1435. [PMID: 35699253 DOI: 10.1080/02640414.2022.2081767] [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] [Indexed: 10/18/2022]
Abstract
We conducted an exploratory analysis to compare running kinematics of 16 male recreational runners wearing Nike Vaporfly 4% (VP4), Saucony Endorphin racing flat (FLAT), and their habitual (OWN) footwear. We also explored potential relationships between kinematic and physiological changes. Runners (age: 33 ± 12 y, V˙ O2peak: 55.2 ± 4.3 ml · kg-1·min-1) attended 3 sessions after completing an V˙ O2peak test in which sagittal plane 3D kinematics at submaximal running speeds (60%, 70% and 80% ʋ V˙ O2peak) were collected alongside economy measures. Kinematics were compared using notched boxplots, and between-shoe kinematic differences were plotted against between-shoe economy differences. Across intensities, VP4 involved longer flight times (6.7 to 10.0 ms) and lower stance hip range of motion (~3°), and greater vertical pelvis displacement than FLAT (~0.4 cm). Peak dorsiflexion angles (~2°), ankle range of motion (1.0° to 3.9°), and plantarflexion velocities (11.3 to 89.0 deg · sec-1) were greatest in FLAT and lowest in VP4. Foot-ground angles were smaller in FLAT (2.5° to 3.6°). Select kinematic variables were moderately related to economy, with higher step frequencies and shorter step lengths in VP4 and FLAT associated with improved economy versus OWN. Footwear changes from OWN altered running kinematics. The most pronounced differences were observed in ankle, spatiotemporal, and foot-ground angle variables.
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Affiliation(s)
- Kim Hébert-Losier
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand.,Research & Development, The Running Clinic, Lac Beauport, Québec, Canada
| | - Steven J Finlayson
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Peter F Lamb
- School of Physical Education, Sport and Exercise Sciences, University of Otago, Dunedin, New Zealand
| | - Matthew W Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Victoria, Australia
| | - Ivana Hanzlíková
- Department of Physiotherapy, Faculty of Physical Culture, Palacký University Olomouc, Olomouc, Czech Republic
| | - Blaise Dubois
- Research & Development, The Running Clinic, Lac Beauport, Québec, Canada
| | - Jean-Francois Esculier
- Research & Development, The Running Clinic, Lac Beauport, Québec, Canada.,Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christopher Martyn Beaven
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
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9
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Hébert-Losier K, Finlayson SJ, Driller MW, Dubois B, Esculier JF, Beaven CM. Metabolic and performance responses of male runners wearing 3 types of footwear: Nike Vaporfly 4%, Saucony Endorphin racing flats, and their own shoes. J Sport Health Sci 2022; 11:275-284. [PMID: 33264686 PMCID: PMC9189709 DOI: 10.1016/j.jshs.2020.11.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/02/2020] [Accepted: 10/22/2020] [Indexed: 06/01/2023]
Abstract
PURPOSE We compared running economy (RE) and 3-km time-trial (TT) variables of runners wearing Nike Vaporfly 4% (VP4), Saucony Endorphin lightweight racing flats (FLAT), and their habitual running (OWN) footwear. METHODS Eighteen male recreational runners (age = 33.5 ± 11.9 year (mean ± SD), peak oxygen uptake (VO2peak) = 55.8 ± 4.4 mL/kg·min) attended 4 sessions approximately 7 days apart. The first session consisted of a VO2peak test to inform subsequent RE speeds set at 60%, 70%, and 80% of the speed eliciting VO2peak. In subsequent sessions, treadmill RE and 3-km TTs were assessed in the 3 footwear conditions in a randomized, counterbalanced crossover design. RESULTS Oxygen consumption (mL/kg·min) was less in VP4 (from 4.3% to 4.4%, p ≤ 0.002) and FLAT (from 2.7% to 3.4%, p ≤ 0.092) vs. OWN across intensities, with a non-significant difference between VP4 and FLAT (1.0%-1.7%, p ≥ 0.292). Findings related to energy cost (W/kg) and energetics cost of transport (J/kg·m) were comparable. VP4 3-km TT performance (11:07.6 ± 0:56.6 mm:ss) was enhanced vs. OWN by 16.6 s (2.4%, p = 0.005) and vs. FLAT by 13.0 s (1.8%, p = 0.032). The 3-km times between OWN and FLAT (0.5%, p = 0.747) were similar. Most runners (n = 11, 61%) ran their fastest TT in VP4. CONCLUSION Overall, VP4 improved laboratory-based RE measures in male recreational runners at relative speeds compared to OWN, but the RE improvements in VP4 were not significant vs. FLAT. More runners exhibited better treadmill TT performances in VP4 (61%) vs. FLAT (22%) and OWN (17%). The variability in RE (-10.3% to 13.3%) and TT (-4.7% to 9.3%) improvements suggests that responses to different types of shoes are individualized and warrant further investigation.
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Affiliation(s)
- Kim Hébert-Losier
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Mount Maunganui, Tauranga 3116, New Zealand.
| | - Steven J Finlayson
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Mount Maunganui, Tauranga 3116, New Zealand
| | - Matthew W Driller
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Mount Maunganui, Tauranga 3116, New Zealand; Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia
| | - Blaise Dubois
- Research & Development, the Running Clinic, Lac-Beauport, QC G3B 2J8, Canada
| | | | - Christopher Martyn Beaven
- Division of Health, Engineering, Computing and Science, Te Huataki Waiora School of Health, University of Waikato, Mount Maunganui, Tauranga 3116, New Zealand
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Edgar DT, Beaven CM, Gill ND, Driller MW. Under Pressure: The Chronic Effects of Lower-Body Compression Garment Use during a 6-Week Military Training Course. Int J Environ Res Public Health 2022; 19:ijerph19073912. [PMID: 35409593 PMCID: PMC8998078 DOI: 10.3390/ijerph19073912] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023]
Abstract
Background: Previous studies have shown that compression garments may aid recovery in acute settings; however, less is known about the long-term use of compression garments (CG) for recovery. This study aimed to assess the influence of wearing CG on changes in physical performance, subjective soreness, and sleep quality over 6 weeks of military training. Methods: Fifty-five officer-trainees aged 24 ± 6 y from the New Zealand Defence Force participated in the current study. Twenty-seven participants wore CG every evening for 4−6 h, and twenty-eight wore standard military attire (CON) over a 6-week period. Subjective questionnaires (soreness and sleep quality) were completed weekly, and 2.4 km run time-trial, maximum press-ups, and curl-ups were tested before and after the 6 weeks of military training. Results: Repeated measures ANOVA indicated no significant group × time interactions for performance measures (p > 0.05). However, there were small effects in favour of CG over CON for improvements in 2.4 km run times (d = −0.24) and press-ups (d = 0.36), respectively. Subjective soreness also resulted in no significant group × time interaction but displayed small to moderate effects for reduced soreness in favour of CG. Conclusions: Though not statistically significant, CG provided small to moderate benefits to muscle-soreness and small benefits to aspects of physical-performance over a 6-week military training regime.
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Affiliation(s)
- David T. Edgar
- Faculty of Health, Sport and Human Performance, University of Waikato, Hamilton 3240, New Zealand; (D.T.E.); (C.M.B.); (N.D.G.)
- New Zealand Defence Force, Joint Support Group, Trentham Camp, Wellington 5019, New Zealand
| | - Christopher Martyn Beaven
- Faculty of Health, Sport and Human Performance, University of Waikato, Hamilton 3240, New Zealand; (D.T.E.); (C.M.B.); (N.D.G.)
| | - Nicholas D. Gill
- Faculty of Health, Sport and Human Performance, University of Waikato, Hamilton 3240, New Zealand; (D.T.E.); (C.M.B.); (N.D.G.)
| | - Matthew W. Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne 3083, Australia
- Correspondence:
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Fenemor SP, Gill ND, Driller MW, Mills B, Casadio JR, Beaven CM. The relationship between physiological and performance variables during a hot/humid international rugby sevens tournament. Eur J Sport Sci 2021; 22:1499-1507. [PMID: 34429018 DOI: 10.1080/17461391.2021.1973111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
To characterise physiological responses to competing in an international rugby sevens tournament played in hot/humid conditions, core temperature (Tc) and Tc predictors were collected from 11 elite men's rugby sevens athletes competing in the Oceania sevens tournament in Suva, Fiji. Tc, body mass change, sweat electrolytes, playing minutes, total running distance, high speed running distance (HSD), psychrometric wet bulb temperature and exertional heat illness symptoms were collected pre, during and post games. Linear mixed-models were used to assess the effect of Tc predictors on post-game Tc, along with differences in Tc across measurement periods. Compared to baseline on both tournament days, mean Tc was higher during all between game (recovery) measures (all d >1.30, p <0.01). On both tournament days, eight athletes reached a post-game Tc >39.0°C, with several athletes reaching >39.0°C during warm-ups. Mean post-game Tc was related to playing minutes, total running distance, HSD, and post warm-up Tc (all p < 0.01). The Tc during warm-ups and games regularly exceeded those demonstrated to be detrimental to repeated sprint performance (> 39°C). Warm-up Tc represents the easiest predictor of post-game Tc to control via time/intensity modulation and the use of appropriate pre- and per-cooling strategies. Practitioners should be prepared to modulate warm-ups and other heat preparation strategies based on likely environmental conditions during hot/humid tournaments.
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Affiliation(s)
- Stephen P Fenemor
- Te Huataki Waiora School of Health, University of Waikato Adams Centre for High Performance, Mt Maunganui, New Zealand.,High Performance Sport New Zealand, Auckland, New Zealand
| | - N D Gill
- Te Huataki Waiora School of Health, University of Waikato Adams Centre for High Performance, Mt Maunganui, New Zealand.,New Zealand Rugby Union, Wellington, New Zealand
| | - M W Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
| | - B Mills
- New Zealand Rugby Union, Wellington, New Zealand
| | - J R Casadio
- High Performance Sport New Zealand, Auckland, New Zealand
| | - C M Beaven
- Te Huataki Waiora School of Health, University of Waikato Adams Centre for High Performance, Mt Maunganui, New Zealand
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12
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Washif JA, Hebert-Losier K, Gill N, Zainuddin M, Nasruddin NS, Zakaria AZ, Beaven CM. RELIABILITY AND MINIMAL DETECTABLE CHANGES OF BENCH PRESS, BACK SQUAT, REACTIVE AND DYNAMIC STRENGTH INDEX. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000759648.92299.f8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Edgar DT, Gill ND, Beaven CM, Zaslona JL, Driller MW. Sleep duration and physical performance during a 6-week military training course. J Sleep Res 2021; 30:e13393. [PMID: 34031933 DOI: 10.1111/jsr.13393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 01/05/2023]
Abstract
Sleep is vital in influencing effective training adaptations in the military. This study aimed to assess the relationship between sleep and changes in physical performance over 6 weeks of military training. A total of 22 officer-trainees (age: 24 ± 5 years) from the New Zealand Defence Force were used for this prospective cohort study. Participants wore wrist-actigraphs to monitor sleep, completed subjective wellbeing questionnaires weekly, and were tested for: 2.4-km run time-trial, maximum press-up and curl-ups before and after 6 weeks of training. Average sleep duration was calculated over 36 nights (6:10 ± 0:28 hr:min), and sleep duration at the mid-point (6:15 hr:min) was used to stratify the trainees into two quantile groups (UNDERS: 5:51 ± 0:29 hr:min, n = 11) and (OVERS: 6:27 ± 0:09 hr:min, n = 11). There were no significant group × time interactions for 2.4-km run, press-ups or curl-ups (p > .05); however, small effects were observed in favour of OVERS for 2.4-km run (59.8 versus 44.9 s; d = 0.26) and press-ups (4.7 versus 3.2 reps; d = 0.45). Subjective wellbeing scores resulted in a significant group × time interaction (p < .05), with large effect sizes in favour of the OVERS group for Fatigue in Week 1 (d = 0.90) and Week 3 (d = 0.87), and Soreness in Week 3 (d = 1.09) and Week 4 (d = 0.95). Sleeping more than 6:15 hr:min per night over 6 weeks was associated with small benefits to aspects of physical performance, and moderate to large benefits on subjective wellbeing measures when compared with sleeping < 6:15 hr:min.
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Affiliation(s)
- David T Edgar
- Division of Health, Engineering, Computing & Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand.,New Zealand Defence Force, Wellington, New Zealand
| | - Nicholas D Gill
- Division of Health, Engineering, Computing & Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | - Christopher Martyn Beaven
- Division of Health, Engineering, Computing & Science, Te Huataki Waiora School of Health, University of Waikato, Tauranga, New Zealand
| | | | - Matthew W Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Vic., Australia
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Abstract
McNeill, C, Beaven, CM, McMaster, DT, and Gill, N. Survey of eccentric-based strength and conditioning practices in sport. J Strength Cond Res 34(10): 2769-2775, 2020-Eccentric-based training (ECC) has been shown to be an effective training strategy in athletes; however, despite the theoretical benefits, the uptake by practitioners is currently unknown. This study investigated the current ECC strength and conditioning practices that are implemented in the training of athletes. Two hundred twenty-four practitioners were electronically surveyed anonymously with 98 responses available for analysis. Nearly all respondents (96%) had prescribed ECC in the last 24 months. Sport performance (64%), injury prevention (24%), and rehabilitation (8%) were the top-ranked reasons to include ECC. Respondents programmed ECC for strength (35%), hypertrophy (19%), and power (18%). A majority of respondents did not monitor ECC load (58%) or use eccentric-specific testing (75%). Seventeen respondents commented that high-intensity training such as sprinting and change of direction, were avoided during ECC blocks. Eccentric-based training intensity was prescribed as percentage of 1 repetition maximum (34%), rate of perceived exertion (20%), or velocity (16%). Respondents indicated muscle soreness and concurrent high-intensity activities were concerns during ECC but reported not using eccentric monitoring or testing. The efficacy of ECC is well supported, yet there seems to be a lack of defined protocol for integrating ECC research into practice. A greater understanding of eccentric contribution to sport performance and injury prevention may help define testing and monitoring procedures for the prescription of ECC interventions. Practitioners should consider factors such as periodization, soreness, and monitoring when designing ECC programs. The findings of this survey indicate that no uniform strategies exist for the prescription of ECC among experienced practitioners.
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Affiliation(s)
- Conor McNeill
- Te Huataki Waiora School of Health, Adams Center for High Performance, The University of Waikato, Tauranga, NZ; and
| | - Christopher Martyn Beaven
- Te Huataki Waiora School of Health, Adams Center for High Performance, The University of Waikato, Tauranga, NZ; and
| | - Daniel T McMaster
- Te Huataki Waiora School of Health, Adams Center for High Performance, The University of Waikato, Tauranga, NZ; and.,New Zealand Rugby Union, Wellington, NZ
| | - Nicholas Gill
- Te Huataki Waiora School of Health, Adams Center for High Performance, The University of Waikato, Tauranga, NZ; and.,New Zealand Rugby Union, Wellington, NZ
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15
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Murray L, Beaven CM, Hébert-Losier K. The effects of running a 12-km race on neuromuscular performance measures in recreationally competitive runners. Gait Posture 2019; 70:341-346. [PMID: 30952107 DOI: 10.1016/j.gaitpost.2019.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/27/2019] [Accepted: 03/26/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The number of individuals participating in organised races is increasing, with few studies undertaken in ecologically-valid settings. Running involves cyclical movements and activation of lower-extremity muscles, with fatigue and foot-strike pattern proposed as factors contributing to running-related injuries. RESEARCH QUESTION Our aim was to investigate the effects of running a 12-km race on plantar pressure distribution, postural balance, foot-strike pattern, and plantar-flexion strength. A secondary aim was to compare actual versus anticipated race finishing times and foot-strike patterns. METHODS Twenty-four recreationally competitive runners (15 males, 9 females) completed the following tests immediately before and after a 12-km race: (1) plantar pressure distribution in self-selected bilateral stance; (2) 30-seconds eyes-closed feet-together postural balance; (3) running foot-strike angle; and (4) peak plantar-flexion isometric force. In-race foot-strike angle and patterns were also assessed at 3 and 10 km. RESULTS Post-race left and right foot plantar pressure distribution, postural balance, and plantar-flexion force measures significantly differed from pre-race measures. These changes were associated with small to large standardised effects (absolute ES: 0.42 to 0.94). On average, the relative pressure under the left foot decreased by 3.2 ± 5.0%; the centre of pressure path length and area of the 95th percentile ellipse from the balance test increased by 5.7 ± 8.9 cm and 18.2 ± 21.3 cm2; and peak plantar-flexion isometric force decreased by 0.23 ± 0.28 times body weight. Participants predicted their finishing times relatively well, but not their foot-strike patterns. No meaningful change in foot-strike angle or pattern was observed pre- to post-race, or between 3 and 10 km. SIGNIFICANCE Running a 12-km race influenced neuromuscular measures, confirming racing-induced fatigue in our recreationally competitive runners. However, these alterations did not lead to observable changes in foot-strike pattern, indicating that this measure might not be appropriate for quantifying fatigue in recreationally competitive runners.
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Affiliation(s)
- Lauralee Murray
- University of Waikato, Faculty of Health, Sport and Human Performance, Adams Centre for High Performance, 52 Miro Street, Mount Maunganui, 3116, Tauranga, New Zealand.
| | - Christopher Martyn Beaven
- University of Waikato, Faculty of Health, Sport and Human Performance, Adams Centre for High Performance, 52 Miro Street, Mount Maunganui, 3116, Tauranga, New Zealand.
| | - Kim Hébert-Losier
- University of Waikato, Faculty of Health, Sport and Human Performance, Adams Centre for High Performance, 52 Miro Street, Mount Maunganui, 3116, Tauranga, New Zealand.
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Cheah BC, Loh TC, Tan CHE, Beaven CM. Comparison of eccentric utilization ratio of elite karate (kata) with elite Wushu athletes. Rev artes marciales asiát 2016. [DOI: 10.18002/rama.v11i2s.4153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Chong CB, Chien LT, Chek Hiong ET, Beaven CM. Comparison of eccentric utilization ratio of elite karate (kata) with elite Wushu athletes. Rev artes marciales asiát 2016. [DOI: 10.18002/rama.v11i2s.4135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Beaven CM, Cook CJ, Kilduff L, Drawer S, Gill N. Intermittent lower-limb occlusion enhances recovery after strenuous exercise. Appl Physiol Nutr Metab 2012; 37:1132-9. [PMID: 22970789 DOI: 10.1139/h2012-101] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Repeated cycles of vascular occlusion followed by reperfusion initiate a protective mechanism that acts to mitigate future cell injury. Such ischemic episodes are known to improve vasodilation, oxygen utilization, muscle function, and have been demonstrated to enhance exercise performance. Thus, the use of occlusion cuffs represents a novel intervention that may improve subsequent exercise performance. Fourteen participants performed an exercise protocol that involved lower-body strength and power tests followed by repeated sprints. Occlusion cuffs were then applied unilaterally (2 × 3-min per leg) with a pressure of either 220 (intervention) or 15 mm Hg (control). Participants immediately repeated the exercise protocol, and then again 24 h later. The intervention elicited delayed beneficial effects (24 h post-intervention) in the countermovement jump test with concentric (effect size (ES) = 0.36) and eccentric (ES = 0.26) velocity recovering more rapidly compared with the control. There were also small beneficial effects on 10- and 40-m sprint times. In the squat jump test there were delayed beneficial effects of occlusion on eccentric power (ES = 1.38), acceleration (ES = 1.24), and an immediate positive effect on jump height (ES = 0.61). Thus, specific beneficial effects on recovery of power production and sprint performance were observed both immediately and 24 h after intermittent unilateral occlusion was applied to each leg.
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Smart DJ, Gill ND, Beaven CM, Cook CJ, Blazevich AJ. The relationship between changes in interstitial creatine kinase and game-related impacts in rugby union. Br J Sports Med 2008; 42:198-201. [DOI: 10.1136/bjsm.2007.040162] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
OBJECTIVES To examine the effectiveness of four interventions on the rate and magnitude of muscle damage recovery, as measured by creatine kinase (CK). METHODS 23 elite male rugby players were monitored transdermally before, immediately after, 36 hours after, and 84 hours after competitive rugby matches. Players were randomly assigned to complete one of four post-match strategies: contrast water therapy (CWT), compression garment (GAR), low intensity active exercise (ACT), and passive recovery (PAS). RESULTS Significant increases in CK activity in transdermal exudate were observed as a result of the rugby match (p<0.01). The magnitude of recovery in the PAS intervention was significantly worse than in the ACT, CWT, and GAR interventions at the 36 and 84 hour time points (p<0.05). CONCLUSIONS An enhanced rate and magnitude of recovery was observed in the ACT, CWT, and GAR treatment groups when compared with the PAS group. Low impact exercise immediately post-competition, wearing compression garments, or carrying out contrast water therapy enhanced CK clearance more than passive recovery in young male athletes.
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Affiliation(s)
- N D Gill
- Waikato Institute of Technology, School of Sport and Exercise Science, Hamilton, New Zealand.
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