Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2015 | 45 | 1 | 19-26
Tytuł artykułu

Reproducibility and Validity of the Myotest for Measuring Step Frequency and Ground Contact Time in Recreational Runners

Treść / Zawartość
Warianty tytułu
Języki publikacji
The purpose of this study was to assess the reproducibility (test-retest reliability and agreement) and concurrent validity of the Myotest for measuring step frequency (SF) and ground contact time (GCT) in recreational runners. Based on a within-subjects design (test and retest), SF and GCT of 14 participants (11 males, 3 females) were measured at three different running speeds with the Myotest during two test sessions. SF and GCT were also assessed with a foot-mounted accelerometer (Gold Standard, previously validated by comparing to force plate data) during the first test session. Levels of test-retest reliability and concurrent validity were expressed with intraclass correlation coefficients (ICC), agreement with standard errors of measurement (SEM). For SF, test-retest reliability (ICC’s > 0.75) and agreement of the Myotest were considered as good at all running speeds. For GCT, test-retest reliability was found to be moderate at a running speed of 14 km/h and poor at speeds of 10 and 12 km/h (ICC < 0.50). Agreement of the Myotest for GCT at all three running speeds was considered not acceptable given the SEM’s calculated. Concurrent validity of the Myotest with the foot-mounted accelerometer (Gold Standard) at all three running speeds was found to be good for SF (ICC’s > 0.75) and moderate for GCT (0.50 < ICC’s < 0.75). The conclusion of our study is that estimates obtained with the Myotest are reproducible and valid for SF but not for GCT.

Opis fizyczny
  • Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands,
  • MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands
  • MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands
  • MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands
  • Vintta
  • Research and Consultancy for Sport Health, Almere, The Netherlands
  • MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands.
  • King Abdulaziz University, Jeddah, Saudi Arabia
  • Bampouras T, Relph N, Orme D, Esformes J. Validity and reliability of the Myotest Pro wireless accelerometer. Br J Sports Med, 2010; 44: i20-i20[Crossref]
  • Boschman JS, Gouttebarge V. The optimisation of running technique: what should runners change and how should they accomplish it? J Sport Human Perf, 2013; 1: 10-24
  • van Bottenburg M. Running alone together? The social dynamics and meanings of ‘light’ running communities. International Sociology of Sport Association. Sport: passion, practice & profit. ’s- Hertogenbosch: Mulier Instituut; 2009
  • Brage S, Wedderkopp N, Franks PW, Andersen LB, Froberg K. Reexamination of validity and reliability of the CSA monitor in walking and running. Med Sci Sports Exerc, 2003; 35: 1447-1454[Crossref][PubMed]
  • Buist I, Bredeweg SW, Lemmink KA, van Mechelen W, Diercks RL. Predictors of running-related injuries in novice runners enrolled in a systematic training program: a prospective cohort study. Am J Sports Med, 2010; 38: 273-280[Crossref]
  • Collier R. The rise of barefoot running. CMAJ, 2011; 183: E37-388
  • Esliger DW, Tremblay MS. Technical reliability assessment of three accelerometer models in a mechanical setup. Med Sci Sports Exerc, 2006; 38: 2173-2181[Crossref]
  • Hespanhol Junior LC, Carvalho ACA, Costa LOP, Lopes AD. The prevalence of musculoskeletal injuries in runners: a systematic review. Br JSports Med, 45: 351-352
  • Kirtley C. Clinical gait analysis: theory and practice. London: Churchill Livingstone; 2006
  • Lieberman DE. What we can learn about running from barefoot running: an evolutionary medical perspective. Exerc Sport Sci Rev, 2012; 40: 63-72[Crossref][PubMed][WoS]
  • Lopes AD, Hespanhol Junior LC, Yeung SS, Costa LO. What are the main running-related musculoskeletal injuries? A Systematic Review. Sports Med, 2012; 42: 891-905 [Crossref][PubMed]
  • van Middelkoop M, Kolkman J, Van Ochten J, Bierma-Zeinstra SM, Koes BW. Risk factors for lower extremity injuries among male marathon runners. Scand J Med Sci Sports, 2008; 18: 691-697[PubMed][Crossref][WoS]
  • Moen MH, Bongers T, Bakker EW, Zimmermann WO, Weir A, Tol JL, Backx FJ. Risk factors and prognostic indicators for medial tibial stress syndrome. Scand J Med Sci Sports, 2012; 22: 34-39[Crossref][PubMed]
  • Myotest, 2012. Available from; accessed on 21.12.2013
  • Nuzzo JL, Anning JH, Scharfenberg JM. The reliability of three devices used for measuring vertical jump height. J Strength Cond Res, 2011; 25: 2580-2590[PubMed][WoS][Crossref]
  • Portney LG, Watkins MP. Foundations of clinical research. Applications to practice. Upper Saddle River: Pearson/Prentice Hall; 2008
  • Potter R, Verberne S, van Keeken B, Boschman Js, Gouttebarge V. Reliability and validity of the Myotest in measuring running economy and vertical oscillation during running. Submitted
  • Rixe JA, Gallo RA, Silvis ML. The barefoot debate: can minimalist shoes reduce running-related injuries? Curr Sports Med Rep, 2012; 11: 160-1655 [PubMed][WoS][Crossref]
  • de Ruiter CJ, Verdijk PW, Werker W, Zuidema MJ, de Haan A. Stide frequency in relation to oxygen consumption in experienced and novice runners. Eur J Sport Sci, 2013; DOI:10.1080/17461391.2013.783627[PubMed][Crossref][WoS]
  • Running-U.S.A. Statistics, 2012 Available from; accessed on 21.12.2013
  • Thompson CJ, Bemben MG. Reliability and comparability of the accelerometer as a measure of muscular power. Med Sci Sports Exerc, 1999; 31: 897-902[PubMed][Crossref]
  • Thompson Coon J, Boddy K, Stein K, Whear R, Barton J, Depledge MH. Does participating in physical activity in outdoor natural environments have a greater effect on physical and mental wellbeing than physical activity indoors? A systematic review. Environ Sci Technol, 2011; 45: 1761-1772 [WoS][PubMed][Crossref]
  • de Vet HC, Terwee CB, Mokkink LB, Knol DL. Measurement in medicine: A practical guide. New York: Cambridge University Press; 2011
  • Williams PT. Attenuating effect of vigorous physical activity on the risk for inherited obesity: a study of 47,691 runners. PLoS One, 2012a; 7: e31436
  • Williams PT. Non-exchangeability of running vs. other exercise in their association with adiposity, and its implications for public health recommendations. PLoS One, 2012b; 7: e36360
Typ dokumentu
Identyfikator YADDA
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.