Abstract:
The purpose of this research was to study the effects of weight training supplementary on throwing ability of softball players. The subjects were 20 male softball players of Chulalongkorn University aged between 18-22 years old. They were purposively sampled and divided equally into two group by simple random sampling to match group method. Group 1 was control group with normal program and group 2 was experimental group with normal program and weight training supplementary program. The period of practice was 3 days per week and total duration is 6 weeks. The measure for testing the samples ability in softball throwing was implemented before, after 3 weeks and after 6 weeks of experimentation. After that, all results should analysis for the means, standard deviation, t-test and one-way analysis of variance with repeated measure. Any differences between in pair were then compared by using turkey (a) method at the .05 significant level.
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Research results showed that :
1. After 6 week the group with normal program and weight training supplementary program had more significant ability of softball throwing than the group with normal program level at .05 level.
2. After 3 week and After 6 week the group with normal program had more significant ability of softball throwing than before training at .05 level.
3. After 3 week and After 6 week the group with normal program and weight training supplementary program had more significant ability of softball throwing than before training at .05 level.