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Grip strength is a representative measure of muscle weakness in the upper extremity after stroke

Ekstrand, Elisabeth LU ; Lexell, Jan LU and Brogårdh, Christina LU (2016) In Topics in Stroke Rehabilitation 23(6). p.400-405
Abstract

BACKGROUND: Muscle weakness is the most common impairment in the upper extremity after stroke, leading to a reduced ability to use the arm and the hand in daily activities. Grip strength is easier to measure than precise, but more time-consuming, isokinetic and isometric arm muscle strength measurements. It would therefore be advantageous in a clinical setting if grip strength could be used as a proxy for muscle strength in the entire upper extremity.

OBJECTIVE: To investigate the association between grip strength and isometric and isokinetic arm muscle strength in persons with chronic stroke.

METHODS: Forty-five persons with mild-to-moderate paresis in the upper extremity, at least 6 months post-stroke participated.... (More)

BACKGROUND: Muscle weakness is the most common impairment in the upper extremity after stroke, leading to a reduced ability to use the arm and the hand in daily activities. Grip strength is easier to measure than precise, but more time-consuming, isokinetic and isometric arm muscle strength measurements. It would therefore be advantageous in a clinical setting if grip strength could be used as a proxy for muscle strength in the entire upper extremity.

OBJECTIVE: To investigate the association between grip strength and isometric and isokinetic arm muscle strength in persons with chronic stroke.

METHODS: Forty-five persons with mild-to-moderate paresis in the upper extremity, at least 6 months post-stroke participated. Isometric grip strength was measured with a computerized grip dynamometer and arm strength (isometric shoulder abduction and elbow flexion as well as isokinetic elbow extension and flexion) with an isokinetic dynamometer. Pearson's correlation coefficient was used to determine the association between the muscle strength measurements.

RESULTS: There were significant correlations (p < .0001) between grip strength and all arm strength measurements in both the more affected (r = 0.77-0.82) and the less affected upper extremity (r = 0.65-0.82).

CONCLUSION: This cross-sectional study showed that grip strength is strongly associated with muscle strength in the arm in persons in the chronic phase after stroke. As grip strength is easy to measure and less time-consuming than arm muscle strength measurements, this implies that grip strength can be a representative measure of muscle weakness of the entire upper extremity in the chronic phase after stroke.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hand strength, Muscle strength dynamometer, Muscle weakness, Outcome assessment, Rehabilitation, Stroke, Upper extremity
in
Topics in Stroke Rehabilitation
volume
23
issue
6
pages
6 pages
publisher
Maney Publishing
external identifiers
  • wos:000385640700004
ISSN
1074-9357
DOI
10.1080/10749357.2016.1168591
language
English
LU publication?
yes
id
b7a4efde-b4cc-4451-b0d4-e5e139f71698
date added to LUP
2017-06-29 08:24:04
date last changed
2017-11-15 08:34:57
@article{b7a4efde-b4cc-4451-b0d4-e5e139f71698,
  abstract     = {<p>BACKGROUND: Muscle weakness is the most common impairment in the upper extremity after stroke, leading to a reduced ability to use the arm and the hand in daily activities. Grip strength is easier to measure than precise, but more time-consuming, isokinetic and isometric arm muscle strength measurements. It would therefore be advantageous in a clinical setting if grip strength could be used as a proxy for muscle strength in the entire upper extremity.</p><p>OBJECTIVE: To investigate the association between grip strength and isometric and isokinetic arm muscle strength in persons with chronic stroke.</p><p>METHODS: Forty-five persons with mild-to-moderate paresis in the upper extremity, at least 6 months post-stroke participated. Isometric grip strength was measured with a computerized grip dynamometer and arm strength (isometric shoulder abduction and elbow flexion as well as isokinetic elbow extension and flexion) with an isokinetic dynamometer. Pearson's correlation coefficient was used to determine the association between the muscle strength measurements.</p><p>RESULTS: There were significant correlations (p &lt; .0001) between grip strength and all arm strength measurements in both the more affected (r = 0.77-0.82) and the less affected upper extremity (r = 0.65-0.82).</p><p>CONCLUSION: This cross-sectional study showed that grip strength is strongly associated with muscle strength in the arm in persons in the chronic phase after stroke. As grip strength is easy to measure and less time-consuming than arm muscle strength measurements, this implies that grip strength can be a representative measure of muscle weakness of the entire upper extremity in the chronic phase after stroke.</p>},
  author       = {Ekstrand, Elisabeth and Lexell, Jan and Brogårdh, Christina},
  issn         = {1074-9357},
  keyword      = {Hand strength,Muscle strength dynamometer,Muscle weakness,Outcome assessment,Rehabilitation,Stroke,Upper extremity},
  language     = {eng},
  number       = {6},
  pages        = {400--405},
  publisher    = {Maney Publishing},
  series       = {Topics in Stroke Rehabilitation},
  title        = {Grip strength is a representative measure of muscle weakness in the upper extremity after stroke},
  url          = {http://dx.doi.org/10.1080/10749357.2016.1168591},
  volume       = {23},
  year         = {2016},
}