震動結合不穩定表面訓練對競技體操選手空翻和高台落地運動表現之生物力學分析

Purpose: To investigate the effects of the gymnast on somersaults and high landing performances immediately after training interventions of 8 weeks. Methods: Sixteen collegiate gymnasts were recruited and randomly paired into a combined training group (CT) and vibration training group (VT) for 8 weeks of training. After the first training session, after 4 weeks and after 8 weeks, participants will use dynamometers to collect kinetic data for the forward somersault, backward somersault, 1-meter and 2-meter platform landing tests, and Delsys wireless electromyographs to collect data on the tibialis anterior (TA)、gastrocnemius medial (GM)、gastrocnemius lateral (GL)、vastus medialis (VM)、vastus lateralis (VL) and rectus femoris (RF) muscles were identified. Experimental data were analyzed using a Two-way ANOVA, mixed design with a mixed design, with the significance level set at α = .05. Results: Backward somersaults, CT after 4 weeks and 8 weeks of training, the take-off strength and the height of the somersault were better than pre-test, and the height of the somersault was better than that of the VT. Forward somersaults, after 4 weeks of training in the CT, the take-off strength, impulse, and somersault height are better than pre-test, and the height of somersaults is better than that of the VT. After 8 weeks of training in the CT, the strength, impulse, and somersault height are better than pre-test, and the take-off strength and the height of somersaults were better than VT. There is no significant difference in the kinetic data when landing on the high platform. Muscle activation analysis found that after 4 weeks of training in the CT, TA and VL were significantly greater than the pre-test, TA, GM, and VM were significantly greater than VT. After 8 weeks of training, CT’s TA, GM, VM, VL was significantly greater than the pre-test, TA, GM, and VM were significantly greater than the VT. Forward somersaults, CT after 4 weeks of training, TA and VL were significantly greater than the VT, after 8 weeks of training, VM and VL were significantly greater than the pre-test, VL was significantly greater than the VT. After landing on a 1m high platform, the degree of muscle activation after 4 weeks of training, the CT group TA and VM were significantly greater than the pre-test, and TA, GL, VM were significantly greater than the VT; after 8 weeks of training, CT group GM, VM, VL Significantly larger than the pre-test, VM is significantly larger than the VT. Landing on a 2m high platform. After 4 weeks of training, the CT group's TA and GM were significantly greater than the pre-test, and TA, GM, GL, and VM were significantly greater than the VT; after 8 weeks of training, the CT group's TA, GM, VM and VL is significantly larger than the pre-test, GM, VM, VL are significantly larger than the VT. Conclusion: 4 and 8 weeks of vibration combined with unstable surface training can effectively improve the neuromuscular activation of the lower limbs of gymnasts, and help improve the performance of forward and backward somersaults.