期刊
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
卷 30, 期 6, 页码 418-425出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0028-1105933
关键词
intermittent work; team-sport performance; near-infrared spectroscopy; muscle deoxygenation
The purpose of this study was to compare the effect of active (AR) versus passive recovery (PR) on Muscle deoxygenation during short repeated maximal running. Ten male team sport athletes (26.9 +/- 3.7y) performed 6 repeated maximal 4-s sprints interspersed with 21 s of either AR (2 m.s(-1))or PR (standing) on a non-motorized treadmill. Mean running speed (AvSp(mean)), percentage speed decrement (Sp%Dec), oxygen uptake ( (V) over dotO(2)), deoxyhemoglobin (HHb) and blood lactate ([La](b)) were computed for each recovery condition. Compared to PR, AvSp(mean) was lower (3.79 +/- 0.28 vs. 4.09 +/- 0.32m.s(-1): P<0.001) and Sp%Dec higher (7.2 +/- 3.7 vs. 3.2 +/- 0.1.3%; P<0.001) for AR. Mean (V) over dotO(2) (3.64 +/- 0.44 vs. 2.91 +/- 0.47L. min(-1), P<0.001), HHb (94.4 +/- 16.8 vs. 83.4 +/- 4.8% of HHb during the first sprint, P=0.02) and [La](b) (13.5 +/- 2.5 vs. 12.7 +/- 2.2 mmol.l(-1), P=0.03) were significantly higher during AR compared to PR. In conclusion, during run-based repeated sprinting, AR was associated with reduced repeated sprint ability and higher muscle deoxygenation.
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