Effect of symmetrical weight bearing training on sit-to-stand in patients with stroke

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Effect of symmetrical weight bearing training on sit-to-stand in patients with stroke


Author: Kan, Wai-leung Barry.
Title: Effect of symmetrical weight bearing training on sit-to-stand in patients with stroke
Degree: M.Sc.
Year: 2004
Subject: Hong Kong Polytechnic University -- Dissertations
Cerebrovascular disease -- Patients -- Rehabilitation
Physical therapy for older people
Department: Dept. of Rehabilitation Sciences
Pages: x, 54 leaves : col. ill. ; 30 cm.
InnoPac Record: http://library.polyu.edu.hk/record=b1800293
URI: http://theses.lib.polyu.edu.hk/handle/200/5378
Abstract: Stroke is one of the major diseases in the aged population. It causes a large number of mortality and disabilities every year. Asymmetry in posture and functional activities in patients with stroke is commonly seen in clinical situations because of inadequate postural control. Patients with stroke may not be able to maintain the body symmetry and balance in sit to stand (STS) transfer owing to the abnormal weight bearing of the paretic limb. Weight bearing training was believed to be able to improve the limb control in stroke rehabilitation. Previous studies demonstrated the effectiveness of visual feedback using force platform to improve STS performance. And the verbal instructions were also shown to be useful in correction of weight asymmetry in STS. This study examined the effectiveness of STS training using external visual feedback and determined whether this training method was superior to conventional training using verbal instructions. Fourteen patients with stroke were recruited in this study. Three tests were used to monitor the change in patient's performance before and after the training. Altogether 5 parameters were used to document any effective changes, which included the functional reach test, speed test, rising index, centre of gravity (COG) sway velocity and weight symmetry. Patients were randomly allocated into two groups, the external visual feedback group and verbal cued group. Experimental training was provided in addition to the usual treatment and it was given twice per week for three weeks. Post-training functional reach test and speed test showed significant improvement by 3.6%-4.4% and 12%-24% respectively in both groups. No significant difference between the two groups was demonstrated in all tests. In conclusion, STS training with both the visual feedback and verbal cue showed significant improvement in forward reach distance and speed of STS, however, no between-group difference was found. Results suggested that the effect of these 2 training protocol was similar, with no superiority detected between them. In addition, rising index, COG sway velocity and weight symmetry in STS performance had no statistical change after intervention although subjects in visual feedback group tended to perform better in these 3 measurements. Result of this study has limited generalization due to the relatively small sample size and low training intensity.

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