【摘要】 为揭示八段锦初学者练习14周前后和专业者八式动作的不同动作特征，以红外捕捉测试系统、三维测力台、表面肌电测试系统，采集八段锦动作数据，以AnyBody 7.0建模系统计算八段锦动作的膝关节动力学、肌肉激活度参数。结果表明：八段锦干预可改善膝关节力量和稳定程度；不同动作的肌纤维参与活动收缩情况不同，产生的肌肉激活度不同，胫骨前肌、股直肌、腓肠肌、股二头肌分别在第二式、第三式、第五式、第七式时的肌肉激活度最高；初学者可针对不同动作影响刺激的肌肉，有针对性的区分练习，提高八段锦锻炼的科学性。研究成果证实了八段锦不同动作的膝关节动力学差异，计算出不同肌肉激活度特点，对指导初学者练习八段锦具有重要的意义。更多还原

【Abstract】 To reveal the different movement characteristics of Baduanjin before and after 14 weeks’ training between beginners and professionals, the infrared capture test system, three-dimensional dynamometry, and surface electromyography test system were used to collect Baduanjin movement data.AnyBody 7.0 Modeling System was used to calculate the knee joint dynamics and muscle activation parameters of Baduanjin movement.The results show that Baduanjin intervention can enhance the strength of knees and stability of lower limb joints, muscle fibers of different movements participate in different contractions, and the muscle activation degree is different.The muscle activation degree of tibialis anterior, rectus femoris, gastrocnemius and biceps femoris is the highest in the second, third, fifth and seventh movements, respectively.Beginners can adopt different actions to affect the stimulation of the muscles, and improve the scientificity of Baduanjin exercise.The research results of this paper have verified the dynamic differences of knee joints of different movements in Baduanjin, and calculated the characteristics of different muscle activation, which is of great significance in guiding beginners to practice Baduanjin.更多还原