Study on Two Typical Progressive Motions in Tai Chi (Bafa Wubu) Promoting Lower Extremity Exercise.
Study on Two Typical Progressive Motions in Tai Chi (Bafa Wubu) Promoting Lower Extremity Exercise.
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DOI：
10.3390/ijerph20032264
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发表时间：
2023-01-27
影响因子：
--
通讯作者：
Li, Yameng
中科院分区：
文献类型：
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作者：
Li, Haojie;Peng, Fang;Lyu, Shaojun;Ji, Zhongqiu;Li, Yameng
背景资料：通过比较研究八法五步与正常步行两种渐进运动对下肢关节、肌肉和骨骼的影响，旨在丰富步行运动的多样性，为基层实践者提供科学的理论指导。进一步探讨了八法五步的科学训练方法和技术特点，以及对下肢综合锻炼的贡献。方法：选取国家一级专业太极拳运动员8名为研究对象。使用AnyBody 7.2肌肉骨骼建模计算下肢的动力学参数。使用ANSYS 19.2工作台对髂骨进行应力分析。结果：在八法五步，地面反作用力在两个渐进的运动过程中显着小于在正常行走中注意到的。在前步回避和前步躺下时，下肢三个关节处的负荷显著小于额面正常行走时的负荷，但显著大于垂直轴正常行走时的负荷。此外，在两种前进运动中，下肢关节扭矩均高于正常行走，下肢肌肉激活更高。两种渐进运动时髂骨载荷均大于正常行走时的载荷，且最大载荷点不同。结论：本研究首次对专业太极拳运动员八法五步的生物力学性能进行了研究。八法五步的两个渐进式动作要求下肢缓慢控制，从而产生较小的地面反作用力。此外，下肢三个关节的载荷均在垂直方向上增加，在侧向上减少，减少了关节侧向损伤的可能性。此外，两个渐进式运动显著增强了跖屈肌、背屈肌和大腿周围肌肉的肌力，并有效刺激下肢骨骼。因此，渐进式运动训练有助于改善正常行走时下肢的控制和支撑能力。
Background: By comparatively investigating the joints, muscles and bones of the lower extremity during two progressive motions in Bafa Wubu and normal walking, this paper aims to enrich the diversity of walking exercise and scientifically provide theoretical guidance for primary practitioners. The scientific training methods and technical characteristics of Bafa Wubu, as well as its contribution to comprehensive exercise of the lower extremities, are further explored. Methods: A total of eight professional athletes of Tai Chi at the national level were recruited. The kinetic parameters of the lower extremity were calculated using AnyBody 7.2 musculoskeletal modeling. Stress analysis of the iliac bone was performed using an ANSYS 19.2 workbench. Results: In Bafa Wubu, the ground reaction force during two progressive motions was significantly smaller than that noted during normal walking. During warding off with steps forward and laying with steps forward, the load at the three joints of the lower extremity was significantly smaller than that during normal walking in the frontal plane, but significantly greater than that noted during normal walking in the vertical axis. In addition, the lower limb joint torque was higher than that of normal walking in both progressive movements, and lower limb muscle activation was higher. The iliac bone loads during the two progressive motions were larger than those during normal walking, and the maximum loading point differed. Conclusions: This is the first study to demonstrate the biomechanical performance of Bafa Wubu in professional athletes of Tai Chi. Two progressive motions of Bafa Wubu require the lower extremity to be slowly controlled, thereby resulting in a smaller ground reaction force. In addition, the loads of the three joints at the lower extremity all increase in the vertical direction and decrease in the lateral direction, reducing the possibility of lateral injury to the joints. In addition, the two progressive motions significantly enhance the muscle strength of the plantar flexion muscles, dorsiflexor, and muscles around the thigh, and effectively stimulate the bones of the lower extremity. Therefore, progressive motion training contributes to improving the controlling and supporting capabilities of the lower extremities during normal walking.