| Summary: | 碩士 === 國立嘉義大學 === 體育與健康休閒學系研究所 === 105 === Background: Teenagers’ lifestyle has been influenced by 3C products for a long time; these products indirectly affect their lifestyle and health status. Many previous studies have explored health-related physical fitness. However, very few studies have sought to explore sport-related physical fitness. Therefore, the present study aimed to explore the impact of skeletalmuscular power/strength/endurance,flexibilityand agility through experimentally-designed (interventional) training.Purposes: Exploring the impact of a six-week progressive plyometric training program toward vocational high students’skeletal muscular power/strength/endurance, flexibility and agility.Methodology: The participants in the study are 26 vocational high school students in Chiayi. Purposive sampling was employed. The participants are equally divided into two groups: experimental group and control group (n=13). The participants in the experimental group conducted a six-week training program, three times a week, 50 minutes each time and the training had three steps: weak, medium, and strong. The control group maintained usual lifestyle and there were no training involved. Both of the groups had pre-tests and post-tests for examining skeletal muscular power/strength/endurance, flexibility and agility. The present study also compared the differences between the two groups. The statistical results were analyzed by a single factor analysis of covariance.Results: After adjusting average of the post-test, the researcher found the flexibility (tested by sit and reach) of the experimental group (35.0± .84cm) is significantly higher than the control group (30.24± . 86cm); the muscular power (tested by standing long jump) of the experimental group (258.20 ±3.35cm) is significantly higher than the control group (225.78 ±3.03cm); the muscular strength (tested by push-up)of the experimental group (53.91±1.46 times) is significantly higher than the control group (45.08 ±1.52 times); the muscular endurance (tested by sit-up) of the experimental group (47.84±2.16 times) is significantly higher than the control group (34.92 ±2.04 times); the agility (tested by three meter side running)of the experimental group (21.88±.19 times) is significantly higher than the control group (20.87 ±.19 times). All of the results reached progressive effect of the significance difference(p<.05).Conclusion: After the intervention of a six-week progressive plyometric training program, participants’skeletal muscular power/strength/endurance, flexibility and agility reached significantdifference (p<.05). The result showed that a six-week progressive plyometric training program can effectively improve and enhance vocational school students’skeletal muscular power/strength/endurance, flexibility and agility.
Keywords: progressive plyometric, sport-related physical fitness, maximum muscular strength
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