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Titolo:
Are variations in running economy in humans associated with ground reaction force characteristics?
Autore:
Heise, GD; Martin, PE;
Indirizzi:
Univ No Colorado, Sch Kinesiol & Phys Educ, Greeley, CO 80639 USA Univ No Colorado Greeley CO USA 80639 & Phys Educ, Greeley, CO 80639 USA Arizona State Univ, Exercise & Sport Res Inst, Tempe, AZ 85287 USA ArizonaState Univ Tempe AZ USA 85287 Sport Res Inst, Tempe, AZ 85287 USA
Titolo Testata:
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 5, volume: 84, anno: 2001,
pagine: 438 - 442
SICI:
1439-6319(200105)84:5<438:AVIREI>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE; WALKING;
Keywords:
aerobic demand; free moment; impulse;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Heise, GD Univ No Colorado, Sch Kinesiol & Phys Educ, Greeley, CO 80639 USA Univ No Colorado Greeley CO USA 80639 uc, Greeley, CO 80639 USA
Citazione:
G.D. Heise e P.E. Martin, "Are variations in running economy in humans associated with ground reaction force characteristics?", EUR J A PHY, 84(5), 2001, pp. 438-442

Abstract

It was hypothesized that certain ground reaction force (GRF) variables arepositively correlated with running economy (RE; the aerobic demand at a single speed of running). Excessive momentum changes, quantified by linear impulse measures, as well the free moment applied to the running surface could be considered potentially wasteful efforts in terms of metabolic energy requirements. Recreational runners (n = 16) ran on a treadmill at 3.35 m(.)s(-1) for physiological measurements and overground for biomechanical measurements. Correlation coefficients were calculated between RE and total vertical impulse (TVI), net impulses in three orthogonal directions, and descriptors of the free moment. The TVI and the net vertical impulse were the onlyGRF characteristics significantly correlated to RE (r = 0.62, r = 0.60, respectively). Greater overall muscle support requirements during ground contact, as represented by TVI, may have been responsible for greater aerobic demand.

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Documento generato il 01/04/20 alle ore 11:39:37