Precise assessment and analysis of the effects of the modified Wuqinxi on balance function in stroke pa-tients
Objective:To observe the effects of the modified Wuqinxi on balance function in stroke patients,and to ex-plore the correlations among three balance assessment methods which are the sacral marker method,the Pro-Kin system,and the Berg balance scale(BBS).Method:Fifty-six patients with stroke were randomly divided into a control group and an experimental group,with 28 patients in each.The control group received conventional physiotherapy,while the experimental group received both conventional physiotherapy and the modified Wuqinxi for four weeks.Balance was assessed us-ing the BBS,three-dimensional motion analysis system via sacral marker method,and the Pro-Kin balance de-vice before and after treatment.Trunk control was evaluated using the Trunk Impairment Scale(TIS).Result:①Pre-and post-intervention comparisons showed significant improvements in BBS scores,the sway path of the sacral markers,which is the center of gravity during standing on two feet and one foot,the move-ment track length of the pressure center,and the area of motion ellipse in the seated position,the stability lim-it,and the TIS scores were significantly improved in both groups(P＜0.05).②Inter-group comparisons post-treatment revealed that the experimental group showed significant improvements in BBS scores,the sway path of the center of gravity standing on two feet and one foot,the movement track length of pressure center,and the area of motion ellipse in the seated position,and the TIS scores compared to the control group(P＜0.05).Compared with the control group,the difference of BBS,the difference of the sway path of the center of gravity standing on two feet and one foot,the difference of the area of motion ellipse in the seated posi-tion,and the difference of the stability limit were significantly improved in the two groups at post-intervention(P＜0.05).③Before the intervention,the sway path of the center of gravity,the movement track length of the pressure center,and the area of motion ellipse were negatively correlated with the BBS scores(r=-0.324--0.562,P＜0.05).The sway path of the center of gravity was positively correlated with the movement track length of pressure center and the area of motion ellipse(r=0.547-0.809,P＜0.01).Conclusion:Trunk control,postural stability,and balance function can be improved effectively by the modi-fied Wuqinxi in stroke patients.There are certain correlations among the sacral marker method,the Pro-Kin system,and the BBS in terms of balance function assessment,all of which can objectively reflect the balance function of stroke patients.The sacral marker method based on three-dimensional motion analysis can detect the balance of stroke patients in different states more objectively therefore is worthy to be recommended and applicated clinically.
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