Research on the effectiveness of the training method and device for lower limb motor pattern remodeling

doi:10.3760/cma.j.issn.1673-4777.2013.07.017

Abstract：Objective To make a device that can valid inhibit the unwanted joint motion in the movement of the lower extremity,in order to ensure the patient walking in normal gait.After the training using this method and device,the normal gait can be remodeled.Another purpose of this research is to observe its effectiveness.Methods The lower extremity motor pattern remodeling device was made,according to the figure of the lower trunk and the lower limb of the patient,by using the parts as follows:①the artificial aluminium-alloy joint hip,knee and ankle,which was the initial flexion angle of the joint that could be adjusted.The motion angle of those artificial joint could be adjusted.②The aluminium-alloy aid raddle and the waisdine made of lukewarm thermoplast board; Also those artificial joint could only be allowed to act on the direction of frontal axis moving forward and backward,in order to ensure the patient walking in normal gait.The clinical trail of the lower limb gait motor pattern remodeling was done by own control study in 30 hemiplegic patients who had gait training using commonly used method and who still had abnormal gait motor pattern.The data was analyzed by t test using SPSS 12.0 statistical software.Results The functional evaluation items were done before and after the training,including the functional ambulation category (FAC),Fugl-Meyer of the lower limb motor function,sEMG that was the intensity and proportion of the motor program,the joint active range of motion (ROM) including hip extension,knee extension,foot dorsiflexion and foot eversion,activity of daily living (ADL).There were extremely significances before and after the training (3.7 ± 1.4vs 0.3 ±0.9; 30±9 vs 15 ±25; 3.6 ±1.3 vs 1.4 ±0.9; 111 ±18 vs 58 ±35; 161 ±4 vs 111 ±13; 15 ±7 vs4 ±6; 79 ± 12 vs 56 ± 25,P ＜ 0.01).Conclusions The lower limb motor pattern remodeling method and device can confine the unwanted joint motion when the lower limb is in activity.Using this device,the normal gait motor pattern of the lower limb can be remodeled,based on the training of neurological potency development and motor program reconstruction.