Effects of teaching with pressurized tennis balls and non-pressurized tennis balls upon the accuracy of forehand and backhand groundstrokes of undergraduate students
Abstract:
To study the effects of teaching with pressurized and non-pressurized tennis balls upon the accuracy of forehand and backhand groundstrokes of undergraduate students, the sample in this research were 30 students of Chulalongkorn University. They were matchedly assigned into two groups of 15 subjects as the experimental group and 15 subjects as the control group. Both of the sample groups were practiced the tennis skills for 3 days per week. The total duration of training was 8 weeks. The skills were tested by forehand and backhand groundstrokes before training, at the end of the fourth weeks and at the end of the eighth weeks. The obtained data were analyzed in terms of means and standard deviations, One-Way analysis of variance with repeated measures and multiple comparisons by Turkey-a,and were employed for statistical significantly different at the .05 level. The results were as follows : 1. The average of the accuracy in forehand and backhand groundstrokes of the control group and the experimental group between before training, at the end of the fourth and the eighth weeks were significantly different among each group at .05 level. 2. The average of the accuracy in forehand and backhand groundstrokes between the control group and the experimental group, before training and at the end of the fourth weeks the accuracy in forehand and backhand groundstrokes were not significantly different among each group. At the end of the eighth weeks, the accuracy in forehand of the experimental group was higher than the control group, significantly different at .05 level.