The article presents the research results determining the impact of dance and power training on the dynamics of bioimpedansometry (body composition) indices in women aged 18-21 years during 3 months. At the beginning of the study, participants were divided into two groups: control group members used mainly dance fitness elements during the training; experimental group participants used programs of power fitness training, comprising mainly exercises on simulators. The dynamics of the studied parameters were monitored using the non-invasive bioimpedance method. In the course of the research it was found out that the parameters of body composition of the surveyed contingent, fixed during each month of training showed a more pronounced tendency to change among the representatives of the control group. Thus, the indices of fat body mass in the control group decreased during 3 months of training in dance fitness by almost 8.0 % (p <0.05) compared to the basal data. At the same time, the experimental group representatives decreased the index by only 4.9 % (p <0.05) for the same period of time This fact allows us to assume that it is dance fitness physical activities that contribute to significant energy expenditure in the body of women at this age and lead to similar changes in body fat level. At the same time, the indices of active body mass showed an increase during 3 months of training, both in the control group representatives and the experimental group participants by 1.2 % and 1.6 %, respectively, compared with the basal data, which indicates positive processes of their adaptation. However, despite the significant external dynamics of the most controlled body composition indices in the examined contingent revealed during the research, especially during dance fitness, there is a question of determining which body reactions (adaptation or compensatory) have stimulated these changes in women of this age and which processes will be going on after using these types of muscular activity further.

Keywords: dance and power fitness, physical load, women aged 18-21 years, bioimpedansometry, adaptation changes

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