重心轨迹运动平衡训练和测试的实现及初步观察

Active control of the trajectory of the center of gravity in balance training

目的研究主动控制重心对平衡训练及平衡评估的影响。方法设计重心轨迹运动平衡训练及评估系统，将受试者分别采用静态平衡和重心波浪轨迹运动两种方式进行测试评估。平衡训练的方法是将偏瘫患者在静态平衡和重心波浪轨迹运动两种方式进行训练。结果2组受试者在静态平衡下，良好重心控制百分比结果相同，在重心轨迹运动站立平衡方式下，受试一组的良好重心控制百分比值均高于受试二组；偏瘫患者训练结果为波浪轨迹训练比静态平衡训练时的偏瘫侧下肢平均用力大，而且偏瘫侧下肢平均用力随着波浪轨迹幅度增大而增大。结论运用波浪方式训练，能有效加强患者的偏瘫侧训练，提高平衡调节能力；运用波浪方式评估，能克服目前静态平衡时无法对患者主动控制重心训练评估的缺点，客观反映出处于同一静态平衡级别受试者主动控制重心和调节下肢的能力。

Objective To study the impact of active control of the trajectory of the center of gravity on the effectiveness of balance training and balance assessment. Methods Two groups of subjects （ group 1 30-45 years old, group 2 45-60 years old） were evaluated and trained using both active center of gravity trajectory control and static balance methods. Results The percentages of success in controlling the center of gravity were the same when both groups were trained using static balance. Group l＇s success percentage was higher than that of group 2 after active center of gravity trajectory training. Their affected lower limbs performed better in wave trace training than after static balance training, and performance improved with increased wave trace amplitude. Conclusions Wave tracing can stimulate the lower limbs of patients with active control force and improve their balance. The wave assessment is superior to static assessment, as it can objectively reflect ability in active center of gravity control and adjust the lower limbs of subjects whose static balance ability is at the same level.