Dance classes structure for children: considerations on effective exercise time

Dance seems to increase moderate to vigorous physical activity (MVPA) in children. However, the majority of time during classes appear at lighintensity. Thus, the aim of this study was to investigate the structure of dance classes for children, as well as to identify behaviours that may favour or hinder MVPA time during classes. For this, three independent researchers performed structured video analysis of dance classes ministered for children (6–12 yrs). As criteria for analysis, the dance activities were classified into four categories and 13 subcategories. Twenty dance classes were filmed, and the results showed an average duration of 57 min of total class time. The time spent (min) at each category was as follows: dancing exercise (27), dancing learning (15), inactive (13) and posing (1) time. The mean duration (min) of the following subcategories was as follows: explanation (14), transitions/breaks (11) and leg movement (8). In conclusion, children spent 47% of the total class time in the category of dancing exercise, and 27% was deemed as inactive time. Slight changes in the class structure may contribute to attain 50% of the total class time at MVPA, as recommended by health organisations.