Objective: To compare the differences in the effects of high intensity interval training (HIIT) and traditional strength training (CST) on the lower limb explosive power and sprint speed abilities of adolescent sanda athletes. Methods: The study was a randomized controlled experiment with 30 adolescent athletes from Shanghai Men's Sanda Team. The experimental group underwent a 6-week (3 times/week) training program consisting of 30 second repeated 10 meter sprints, 60 second specialized technique combination shooting, and 120 second jump rope double swing explosive power training for 6-12 sets. The HIIT training was conducted with a 30 second interval between sets and a 3-minute interval between programs. The control group completed the same sessions of traditional strength training such as squats, bench presses, flips, and clean and jerk exercises, as well as small hurdle jumping training and moderate intensity continuous running training. Results: (1) Before and after the 6 week training, the two groups of athletes had the interaction of grouping and time at 5 meters (F=17.039, P=0.01), 10 meters (F=4.121, P=0.05), CMJ height (F=15.164, P=0.01), and DJ height (F=3.792, P=0.06) , in which the experimental group's post-training performance was better than the pre-training (P< 0.01) and the control group post-training level (P<0.05). (2) Before and after 6 weeks of training, there was no interaction between grouping and time for both groups of athletes at 30 meters (F=1.145, P=0.29) and DJ reaction time (F=0.899, P=0.35) . Conclusion: Six weeks (3 times/week) of HIIT is effective in improving the explosive qualities of youth sanda athletes. |