In vivo Human Muscle Shortening and Oxygen Consumption

In vivo Human Muscle Shortening and Oxygen Consumption

To determine the effects of muscle shortening on skeletal muscle energy requirement. 19 trained male and female runners (35+ or -2 years, 171+ or -2 cm, 67+ or -3 kg; VO sub(2)max=51+ or -2 ml times g super(-1) times min super(-1)) performed 30 plantarflexions attempting to reach 50% of maximum torq...

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Veröffentlicht in:Medicine and science in sports and exercise 2012-05, Vol.44 (5S), p.231-231
Hauptverfasser: Fletcher, Jared R, Groves, Erik M, MacIntosh, Brian R
Format: Artikel
Sprache:eng
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Zusammenfassung:To determine the effects of muscle shortening on skeletal muscle energy requirement. 19 trained male and female runners (35+ or -2 years, 171+ or -2 cm, 67+ or -3 kg; VO sub(2)max=51+ or -2 ml times g super(-1) times min super(-1)) performed 30 plantarflexions attempting to reach 50% of maximum torque with each contraction. Contractions were performed on an isokinetic dynamometer under two conditions: isometric (ISO) and isokinetic (KIN). Compared to ISO, KIN resulted in significantly greater (mean difference+ or -SEM) muscle shortening (6.3+ or -1.9 mm, p
ISSN:0195-9131