健身反向走练习对青年人下肢动作特征的影响

Effect of Backward Walk Training on the Characteristics of Lower Limb Movement of Young People

为了探究反向走练习对青年人下肢动作特征的影响,选取受试者25名,分为熟练组(P组)和非熟练组,对后者的练习前组(IB组)进行6周反向走训练,完成训练后为练习后组(IA组)。记录并分析受试者的反向走动作特征参数,运用配对与独立样本t检验比较各组间动作特征指标的差异。结果表明:与P组相比,反向走时IB组步长、跨步长较大,步频较低,但整体步速较快;髋关节后伸不足,膝关节折叠过大,且躯干的回旋无规律性特征;竖脊肌工作不足,股二头肌激活进行屈膝代偿。6周反向走练习后,IA组下肢运动特征以及步态周期均产生了合理化改变,肌肉工作方式与熟练组更加接近,表明已初步建立了反向走动作模式,建议青年人应经常进行反向走练习。

This study intends to discover the effect of backward walking training on the characteristics of lower limb movementof young people.25subjects were divided into professional group(group P)and unprofessional group.The Before InterventionGroup(group IB)of latter was trained by backward walking for6weeks,and after the training group was named the After InterventionGroup(group IA).Recording and analyzing the reverse motion characteristic parameters of the subjects,using thepaired and independent samples t test to compare the differences of the action characteristic indexes between the groups.Comparedwith group P,group IB?s step length and stride length is larger,frequency is lower,but the overall pace is faster;hip extensionis lack and knee fold is too large,there is no regular feature in trunk swing;lack of erector spine working,the bicepsfemoris muscle is activated to compensate of knee flexion.After the backward walk training of6weeks,group IA?s lower extremitymotor characteristics and gait cycle had reasonable change,muscle working is closer with the professional group that hasindicate that the action mode of backward walking is establish preliminary,suggesting that young people should always train bybackward walking.