HUBUNGAN ANTARA KEKUATAN OTOT PERUT DAN DAYA LEDAK OTOT TUNGKAI TERHADAP KEMAMPUAN SMASH ANGGOTA UKM BOLA VOLI UMS

This study aims to determine the relationship between abdominal muscle strength and leg muscle explosive power with volleyball smash ability. The population in this study were all members of the UMS Volleyball UKM, which amounted to 20 people. The data was collected using the sit up test instrument to measure abdominal muscle strength and the vertical jump test to measure the explosive power of the leg muscles, performing the smash accuracy test for 3 repetitions. The results of data analysis show that: (1) abdominal muscle strength has a relationship with smash ability, the value of r_count is 0.585 and r_count (20; 0.05) is 0.456 while r_count (20; 0.01) is 0.575, it can be concluded that the coefficient the correlation between the two is 58.5%. (2) abdominal muscle strength has a relationship with the ability to smash, the value of r_count is 0.366 and r_count (20; 0.05) is 0.456 while r_count (20; 0.01) is 0.575., it can be concluded that the correlation coefficient between the two is 36.6 % (3) abdominal muscle strength and leg explosive power, have a relationship with volleyball smash ability, the value of r_count is 0.462 and r_count (20 ; 0.05) is 0.456 while r_count (20 ; 0.01) is 0.575. it can be concluded that the correlation coefficient between abdominal muscle strength and leg explosive power, with volleyball smash ability is significant at 45.6%