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Titolo:
Gender- and height-related limits of muscle strength in world weightlifting champions
Autore:
Ford, LE; Detterline, AJ; Ho, KK; Cao, WY;
Indirizzi:
Indiana Univ, Sch Med, Krannert Inst Cardiol, Dept Med, Indianapolis, IN 46202 USA Indiana Univ Indianapolis IN USA 46202 pt Med, Indianapolis, IN 46202 USA China Natl Res Inst Sports Sci, Beijing 100061, Peoples R China China NatlRes Inst Sports Sci Beijing Peoples R China 100061 es R China
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 3, volume: 89, anno: 2000,
pagine: 1061 - 1064
SICI:
8750-7587(200009)89:3<1061:GAHLOM>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
BODYBUILDERS;
Keywords:
human; skeletal muscle; muscle fiber; athletics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Ford, LE Indiana Univ, Sch Med, Krannert Inst Cardiol, Dept Med, Indianapolis, IN 46202 USA Indiana Univ Indianapolis IN USA 46202 ndianapolis, IN 46202 USA
Citazione:
L.E. Ford et al., "Gender- and height-related limits of muscle strength in world weightlifting champions", J APP PHYSL, 89(3), 2000, pp. 1061-1064

Abstract

To assess factors that limit human muscle strength and growth, we examinedthe relationship between performance and body dimensions in the world weightlifting champions of 1993-1997. Weight lifted varied almost exactly with height squared (Ht(2.16)), suggesting that muscle mass scaled almost exactly with height cubed (Ht(3.16)) and that muscle cross-sectional area was closely correlated with body height, possibly because height and the numbers of muscle fibers in cross section are determined by a common factor during maturation. Further height limitations of muscle strength were shown by onlyone male champion greater than or equal to 183 cm and no female champions greater than or equal to 175 cm. The ratio of weight lifted to mean body cross-sectional area was approximately constant for body-weight classes less than or equal to 83 kg for men and less than or equal to 64 kg for women and decreased abruptly for higher weight classes. These findings suggest a nearly constant fraction of body mass devoted to muscle in lighter lifters and a lesser fraction in heavier lifters. Analysis also suggests that contractile tissue comprises similar to 30% less body mass in female champions.

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Documento generato il 05/12/20 alle ore 01:57:36