Vol. 1, Issue 2, Part A (2019)

Our aim was to find out the level of energy spent as well as the duration of physical activity per week, and the levels of body mass index of Algerian youth (n = 1350), aged between 18 and 36 years, the number of males 816, the number of females was 534, and we compared male and female.We used a questionnaire dedicated to measuring the level of physical activity, which was distributed in paper, and electronically to the members of the sample, and after the compilation of the answers we statistical treatment using spss v22.The results showed that the level of energy spent per week is weak in all years z-score < 1.96 except at age 23 (z-score = 2.67), When compared between males and females, the difference was statistically significant in favor of males (p≤0.05), in the years 18 to 27 and 33, the remaining years were not statistically significant differences (p> 0.05). The duration of physical activity per week from age of 18 to 23 had a high physical activity level z-score ≥ 1.96, other years were low, and when comparing both sexes, there were statistically significant differences in favor of males in the years 22, 23 and 25, while the difference was in favor of females in the age of 30, and the other years did not have differences between them.