Influence of electrical somatosensory stimulation on the functional performance of the paretic limbs of subjects with chronic stroke

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Influence of electrical somatosensory stimulation on the functional performance of the paretic limbs of subjects with chronic stroke

 

Author: Yu, Chun-ho
Title: Influence of electrical somatosensory stimulation on the functional performance of the paretic limbs of subjects with chronic stroke
Degree: M.Sc.
Year: 2010
Subject: Hong Kong Polytechnic University -- Dissertations
Cerebrovascular disease -- Patients -- Rehabilitation -- China -- Hong Kong
Electrotherapeutics
Department: School of Nursing
Pages: xv, 116 leaves : ill. ; 30 cm.
InnoPac Record: http://library.polyu.edu.hk/record=b2352687
URI: http://theses.lib.polyu.edu.hk/handle/200/5620
Abstract: Electrical somatosensory stimulation is an effective modality to improve the motor functions of patients with chronic stroke. However, it is still not clear about the effect of electrical somatosensory stimulation of the upper limb on the motor function of the lower limb and vice versa. The objectives of the present study were to investigate this cross-over effect and placebo effect of electrical somatosensory stimulation in patients with chronic stroke. Ten patients with single, unilateral stroke participated in the study. The recruited subjects were 62.1 ± 6.9 years old, 7.5 ± 3.4 years since onset of stroke. The effect of 2-hour electrical somatosensory stimulation were investigated through the outcome measures of upper limb motor function of upper limb (Jebsen-Taylor Hand Function Test, handgrip strength test, pinch grip strength test) and lower limb (Five-Time-Sit-to-Stand-Test and Timed Up and Go Test). Comparing the upper limb stimulation group with the placebo and control groups, the upper limb stimulation group showed significant improvement in the scores of Jebsen-Taylor Hand Function Test (p<0.05) and handgrip strength (p<0.05). Comparing the lower limb stimulation group with the placebo and control groups, the lower limb stimulation group showed significant improvement in the scores of Five-Time-Sit-to-Stand-Test (p<0.01), Timed Up and Go Test (p<0.01). No significant placebo effect of either upper or lower limb stimulation was found. The result of the present study shows that electrical somatosensory stimulation of the upper and lower limb is effective in promoting motor functions of the upper and lower limb respectively but it has no cross-over effect. These findings suggest that the effect of electrical somatosensory stimulation is specific to the site of stimulation in patients with chronic stroke.

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