Abstrakt
The aim of this study was to compare the cardiorespiratory cost of such exercise with other aerobic exercises and to assess the energy expenditure during Zumba class in middle age women group. The subjects were recruited from the clients of a private fitness club.
A group of 6 women (age range 27-37 years) volunteered to participate in the study. Anthropometric data (body weight, high, total body fat) were 68.5+-10.8 kg, 170.3+-6.6 cm, 27.4+-6.6 % and maximal aerobic capacity (VO2peak) during running test on the treadmill with maximal heart rate was 27.4+-6.6 ml.kg-1.min-1 and 183+-15 bpm.
Minute ventilation (VE) and oxygen uptake (VO2) was measured during the whole Zumba class. The energy cost was calculated converting the estimated VO2 to kcal, using the constant of 5 kcal (4.18 kJ) on 1 l VO2 oxygen consumption with respiratory exchange ratio equals number 1 (Otto et al., 2011).
Results The percentage of average HR, VO2 during whole Zumba class compared with maximal running test were in the 76.7 % from the maximal HR and 51.2 % from the VO2peak. The intensity of the whole Zumba class is on the 68.4 % of maximal running test with the oxygen consumption.
In the whole the lesson was consumed 404.8 kcal (resp. 1692.2 kJ). The intensity of whole lesson reported by HR was covered by 67.5 % from maximal HR-high intensity exercise.
In the central phase there was the highest energetic cost (336.3 kcal, resp. 1405.9 kJ).