Effects of combined training isokinetic knee extension exercises based on sex difference

Abstract

The purpose of this study was to examine the effects of a combined training program involving isokinetic exercises on male and female students. The participants, 24 male and 28 female college students, were divided into 4 training groups: G180 (180 deg/sec), G60+180 (60 deg/sec+180 deg/sec), G180+300 (180 deg/ sec+300 deg/sec), and Gall (60 deg/sec+180 deg/sec+300 deg/sec). The number of repetitions was set to ensure that each group's total work was approximately the same. All trained 3 days per week for 8 weeks. The maximum torque in each training group increased significantly at a low speed (60 deg/sec) in the low speed combined group and at high speed (300 deg/sec) in the high speed combined group. Additionally, medium speed (180 deg/sec) was increased significantly in all training groups. With regard to the rate of increase in maximum torque per unit body weight, there was no significant difference in the rate of increase in the test load in each group for both males and females. The rate of increase in maximum torque per unit body weight for males did not differ significantly among the 4 groups, but G180+300 and Gall were significantly higher than G180 for females. With regard to the difference between males and females in terms of the increased rate of maximum torque per unit body weight in the training groups, the rate for females in G180+300 and Gall was significantly higher than that for males. These results revealed that males were not effective in combined training involving isokinetic exercises. The training combined with high speed appeared to be effective for females in that the latter had a better effect than for males.