| Summary: | 碩士 === 國立臺南大學 === 運動與健康研究所 === 94 === The purposes of this study are to perceive the effect of soft tennis training on Bone Mineral Density (BMD) on grade 3 children and the differences of BMD between girls and boys. Both training and control group contained 12 boys and 8 girls between the ages 8-9. Training group underwent sixteen-week soft tennis training, 5 times (around5-8 hours) per week, while the control group did not participate in any exercise other than the school-required PE classes. Using Quantitative Ultrasound (PEGASUS France), calcaneal bone Broadband Ultrasound Attenuation (BUA) was evaluated before and after training. The results of the study were as follows:
1.The calcaneal bone BUA of training group were obviously higher than the control group (65.26 dB/MHz vs 59.21 dB/MHz) (p<.05).
2.There was no significance between boys and girls in training group, p>.05. The BUA values of boys and girls were both significantly higher than those in the control group (p<.05).
In conclusion, sixteen-week soft tennis training will increase childrens’ calcaneal BMD and the effect was obvious in boys as well as girls. Thus, taking part in soft tennis training is a good method to increase one’s BMD and to reach a higher peak bone mass in order to prevent Osteoporosis.
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