Abstract
Background Tai Chi (TC) is known to enhance balance control and walking function in stroke survivors. However, motor disorders in stroke patients may limit the implementation of TC exercise and increase the risk of falling. The body weight support (BWS) device can provide protection during the early rehabilitation of stroke survivors using an overhead suspension system. Theoretically, combining TC with BWS may be an effective intervention for stroke survivors. This study aimed to examine the effects of body weight support-Tai Chi training on balance control and walking function in stroke survivors with hemiplegia. Methods Seventy-one stroke survivors with hemiplegia aged 30–75 years were randomly allocated to the control group (N = 35) or the BWS-TC group (N = 36). During BWS-TC training, the subjects performed 7 Tai Chi footwork forms, and gradual easy-to-difficult progression (from 40% to 0% body weight) was followed. The subjects participated in 40 min rehabilitation sessions three times per week for 12 weeks. The primary outcome was dynamic balance in the limits-of-stability test. The secondary outcomes, which reflect improvements walking function, included spatiotemporal parameters, the joint range of motion in the affected limb during the swing phase, the Berg Balance Scale score, and the Fugl-Meyer Assessment score. Evaluations were performed at baseline and 12 weeks and compared between groups. Results After training, significant between-group differences were observed in the scores for overall, forward, left, right, forward-left, and forward-right directional control in the limits-of-stability test (P < 0.05). Furthermore, the scores for gait cycle time, step length, step velocity, and range of motion of the joints were better in the BWS-TC group than in the control group (P < 0.05). Conclusions The 12-week BWS-TC training may enhance dynamic balance and walking function in stroke survivors with hemiplegia.
Highlights
Stroke is the second most common cause of death and a leading cause of long-term disability among middle-aged and elderly adults worldwide [1, 2]
We proposed a novel intervention strategy that combined Tai Chi (TC) and body weight support (BWS) and examined the effects of BWSTC training on balance control and walking function in stroke survivors with hemiplegia
No adverse events were observed during the study period. ese results indicate the safety and utility of this combined intervention for improving balance control and walking function in stroke survivors with hemiplegia
Summary
Stroke is the second most common cause of death and a leading cause of long-term disability among middle-aged and elderly adults worldwide [1, 2]. An epidemiological study reported that 70–80% of stroke survivors develop functional disabilities [3, 4]. Exercise intervention is an integral part of the rehabilitation for motor impairments caused by stroke and has been shown to improve the walking function, balance control, and functional independence [6,7,8]. Erefore, the study and development of alternative forms of exercise that could improve motor function of stroke survivors are necessary. Tai Chi (TC) is known to enhance balance control and walking function in stroke survivors. Motor disorders in stroke patients may limit the implementation of TC exercise and increase the risk of falling. E body weight support (BWS) device can provide protection during the early rehabilitation of stroke survivors using an overhead suspension system Motor disorders in stroke patients may limit the implementation of TC exercise and increase the risk of falling. e body weight support (BWS) device can provide protection during the early rehabilitation of stroke survivors using an overhead suspension system
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