The dynamics of indicators of power abilities development in 16-17-year-old boys

The purpose of the research: to reveal changes in indicators of power abilities development in 16-17-year-old boys. Material and methods of the research. The research was carried out based on “Housing and Municipal Professional College of O.M. Beketov Kharkiv National University of Urban Economy”. There were examined 26 students of the 1st and 2nd courses. The level of strength development was determined by three indicators: strength of the shoulder girdle muscles, strength of the abdominal muscles and strength of the hip flexors. The level of development of muscle strength of a shoulder girdle was investigated by means of the motor test “Flexion and extension of arms in a lying down support” (number of times); the level of development of strength of abdominal muscles was investigated by means of the test “Lifting a trunk sitting from a starting position lying on a back for 30 s” (number of times); strength of muscles-flexors of a hip joint and muscles of an abdominal press by means of the test “Holding of legs in a lying position” (s). Results of the research. The initial level of strength development was determined, changes of the obtained indicators were traced, and the analysis in the age aspect was carried out. Conclusions. Boys’ strength development was found to be below average at the beginning of the year. It was determined that the indicators of 17-year-old boys are significantly higher than those of 16-year-old boys. At the end of the year, the level of 16-year-old boys increased from below average to average, while 17-year-old boys showed no significant changes. By age, the trend of differences didn’t change significantly, with a more significant increase in results among boys aged 17.