Paper Title
The Effects of Corded/Cordless Jump Rope Program on Students’ Growth Factor and Physical Strength

Abstract
The purpose of this study was to investigate the difference in growth factors and physical fitness of 30 elementary school students for 12 weeks. The grouping was divided into a corded jump rope group (n = 10), a cordless jump rope group (n = 10) and a control group (n = 10). Statistical analysis showed that AHP-BP was significantly increased after 12 weeks in corded jump rope group & cordless jump rope group, and AHP-TW was significantly increased in cordless jump rope group only after 12 weeks. There was no statistically significant difference in muscle strength and flexibility among all groups. cardiorespiratory endurance (15 m shuttle run) and quick adaptation were significantly increased in corded jump rope group and cordless jump rope group after 12 weeks. Body mass index (BMI) decreased significantly in cordless jump rope group after 12 weeks. It seems that cordless jump rope exercise is more effective for growth and physical fitness of elementary school students. Keywords - Corded-Cordless Jump Rope, Growth Factors, Student Physical Fitness.