ЕFFECTS OF PROGRAMMED TRAINING ON MOTOR ABILITIES OF VOLLEYBALL PLAYERS

Abstract

This study aimed to investigate the effects of programmed training on the changes in the explosive strength, speed, and agility in young male volleyball players. The sample of subjects in this research consists of 40 volleyball players of junior age in the volleyball clubs: OK "Topličanin" (n = 20) from Prokuplje and OK "Nis" from Nis (n = 20). Subjects were divided into two groups: experimental group 1 (E1, n = 20) and experimental group 2 (E2, n = 20). Experimental group 1 consists of volleyball players from OK "Topličanin" from Prokuplje, who, in addition to basic specific – situational training, also had plyometric training sessions twice a week for six weeks. Experimental group 2 consists of volleyball players from OK "Niš" from Niš, who had only specific – situational training sessions in that period. The research is longitudinal, comprising the initial and final measurements. The experimental treatment lasted six weeks and was realized in the preparatory period. The three tests were used to assess the explosive strength: 1) Squat jump 2) Countermovement Jump 3) Counter Movement Jump/Arm Swing. The three tests were used to estimate speed: 1) 5 meters sprint 2) 10 meters sprint 3) 15 meters sprint. The three tests were used to estimate agility 1) Agility t-test 2) 9-6-3-6-9 agility test and 3) 505 agility test. Mancova analysis was used to compare different subsamples of subjects at the initial and final measurements. The results of the research show that volleyball-specific-situational training followed by plyometric training significantly improves motor skills: explosive strength, speed, and agility. The strongest effect was noticed on explosive strength.

Keywords

• junior
• explosive strength
• agility
• speed