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- Title
Effects of Recovery Mode on Performance, 0<sub>2</sub> Uptake, and 0<sub>2</sub> Deficit During High-Intensity Intermittent Exercise.
- Authors
Dorado, Cecilia; Sanchis-Moysi, Joaquin; Calbet, José A. L.
- Abstract
The aim of this study was to determine the influence of activity performed during the recovery period on the aerobic and anaerobic energy yield, as well as on performance, during high-intensity intermittent exercise (HIT). Ten physical education students participated in the study. First they underwent an incremental exercise test to assess their maximal power output ( Wmax) and VO2max. On subsequent days they performed three different HlTs. Each tiff consisted of four cycling bouts until exhaustion at 110% Wmax. Recovery periods of 5 mm were allowed between bouts. HITs differed in the kind of activity performed during the recovery periods: pedaling at 20% VO2max (HITA), stretching exercises, or lying supine. Performance was 3-4% and aerobic energy yield was 6-8% (both p< 0.05) higher during the HITA than during the other two kinds of HIT. The greater contribution of aerobic metabolism to the energy yield during the high-intensity exercise bouts with active recover, was due to faster VO2 kinetics (p <0.01) and a higher VO2 peak during the exercise bouts preceded by active recovery (p <0.05). In contrast, the anaerobic energy yield (oxygen deficit and peak blood lactate concentrations) was similar in all HITs. Therefore. this study shows that active recovery facilitates performance by increasing aerobic contribution to the whole energy yield turnover during high-intensity intermittent exercise.
- Subjects
AEROBIC exercises; STRETCH (Physiology); PERFORMANCE; FATIGUE (Physiology); SUPINE position; PHYSICAL education
- Publication
Canadian Journal of Applied Physiology, 2004, Vol 29, Issue 3, p227
- ISSN
1066-7814
- Publication type
Article
- DOI
10.1139/h04-016