To evaluate the effect of warm up on energy cost and energy sources of a ballet dance exercise, 12 adolescent talented female dancers performed a ballet exercise (30 s of tours piqués en dedans on pointe) without and following a warm up. Warm up consisted in a light running followed by a period of stretching and two ballet exercises. The overall energy requirement of dance exercise (VO2eq) was obtained by adding the amount of VO2 during exercise above resting (aerobic source or VO2ex to the VO2 up to the fast component of recovery (anaerobic alactic source or VO2al and to the energy equivalent of peak blood lactate accumulation (anaerobic lactic source or VO2la- of recovery. VO2eq of exercise preceded by warm up amounted to 37 ± 3 ml kg-1. VO2al represented the higher fraction (50 plusmn; 6%) of VO2eq, the remaining fractions were: 39 plusmn; 5% for VO2ex and 11 plusmn; 3% for VO2la-. VO2eq of exercise without warm up amounted to 38 ± 3 ml kg-1. This value was made up of: 26 ± 6% by VO2ex, 56 ± 6% by VO2al and 18 ± 3% by VO2la- Between exercise conditions, significant differences were found in VO2ex (P < 0.01), VO2la (P < 0.01), and VO2al (P < 0.05). The metabolic power requirement, 1.6 times higher than subject's V̇O2max indicates a very demanding exercise. The anaerobic alactic source was the most utilized. It can be concluded that, when dance exercise was preceded by warm up, the anaerobic sources contribution decreased whereas the aerobic energy source increased. © Springer-Verlag 2006.
Effect of warm up on energy cost and energy sources of a ballet dance exercise / Guidetti, L.; Emerenziani, G. P.; Gallotta, M. C.; Baldari, C.. - In: EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY. - ISSN 1439-6319. - 99:3(2007), pp. 275-281. [10.1007/s00421-006-0348-9]
Effect of warm up on energy cost and energy sources of a ballet dance exercise
Emerenziani G. P.;Gallotta M. C.;
2007
Abstract
To evaluate the effect of warm up on energy cost and energy sources of a ballet dance exercise, 12 adolescent talented female dancers performed a ballet exercise (30 s of tours piqués en dedans on pointe) without and following a warm up. Warm up consisted in a light running followed by a period of stretching and two ballet exercises. The overall energy requirement of dance exercise (VO2eq) was obtained by adding the amount of VO2 during exercise above resting (aerobic source or VO2ex to the VO2 up to the fast component of recovery (anaerobic alactic source or VO2al and to the energy equivalent of peak blood lactate accumulation (anaerobic lactic source or VO2la- of recovery. VO2eq of exercise preceded by warm up amounted to 37 ± 3 ml kg-1. VO2al represented the higher fraction (50 plusmn; 6%) of VO2eq, the remaining fractions were: 39 plusmn; 5% for VO2ex and 11 plusmn; 3% for VO2la-. VO2eq of exercise without warm up amounted to 38 ± 3 ml kg-1. This value was made up of: 26 ± 6% by VO2ex, 56 ± 6% by VO2al and 18 ± 3% by VO2la- Between exercise conditions, significant differences were found in VO2ex (P < 0.01), VO2la (P < 0.01), and VO2al (P < 0.05). The metabolic power requirement, 1.6 times higher than subject's V̇O2max indicates a very demanding exercise. The anaerobic alactic source was the most utilized. It can be concluded that, when dance exercise was preceded by warm up, the anaerobic sources contribution decreased whereas the aerobic energy source increased. © Springer-Verlag 2006.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.