Ryšys tarp moksleivių kūno kompozicijos, fizinio aktyvumo ir atsigavimo po fizinio krūvio greičio

SUMMARY THE RELATIONSHIP BETWEEN PUPILS' BODY COMPOSITION, PHYSICAL ACTIVITY AND RECOVERY SPEED AFTER PHYSICAL EXERCISE Hypothesis. We thought that pupils’ who have higher physical activity and normal body weight also have faster recovery after physical exercise. Objectives of the study. To identify the relationship between pupil’s body composition, physical activity and recovery rate after physical load. The aim of the study: 1. To identify the relationship between physical activity and body composition. 2. To identify the relationship between body composition and recovery rate after physical activity. 3. To identify the relationship between physical activity and recovery speed after physical exercise. Subjects. It was made of a group of 40 healthy (20 girls and 20 boys), 10-12 form pupils, chosen by chance, from one Kaunas secondary school. Methods: According to the questionnaire, applying the indirect test technique of maximum oxygen consumption (VO2max), suggested by Huston university. Was estimated pupils physical activity and VO2max. According to the data of the questionnaire, the analysed have been divided into 3 groups of physical activity (PA): low PA; medium PA; high PA. The body composition of the investigated has been measured according bioelectrical impedance method. The following indicators have been measured: body weight, body weight index (BWI); relative fat mass (%); fat free mass (kg), total water amount (kg). To establish functional capacity of circulatory system, we have done Rufje test and calculated its index. To estimate the speed of heart rate (HR) recovery, the analyzed HR has been measured 5 minutes after Rufje test using POLAR HR fixer monitor. The results of the study: The results of the study have shown that statistically significantly higher (p0,05). Rufje index had been statistically relatively (p0,05). Key words: maximum oxygen consumption, body composition, heart rate, recovery.