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2014 ; 66
(4
): 348-58
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Characteristics of stabilizer muscles: a systematic review
#MMPMID25922556
Sangwan S
; Green RA
; Taylor NF
Physiother Can
2014[Fal]; 66
(4
): 348-58
PMID25922556
show ga
PURPOSE: To identify the main characteristics, based on available evidence, of
stabilizer muscles to inform the development of a definition of stabilizer
muscles. METHODS: Electronic databases were systematically searched for relevant
literature from the databases' inception to June 2013 using keywords related to
stability, muscles, and characteristics of stabilizer muscles. Studies that
provided at least one characteristic of a stabilizer muscle were included. For
the quality assessment, all included articles were categorized as either
experimental or opinion-based studies. Methodological quality was assessed using
a customized checklist, and data were analyzed with a narrative synthesis
involving content analysis. The number of articles providing either direct
evidence supporting a link between the characteristic and joint stability or
indirect evidence that a muscle considered to be a stabilizer has that
characteristic determined the level of significance of that characteristic for
stabilizer muscles. RESULTS: A total of 77 studies met the inclusion criteria.
The highest number of articles providing supporting evidence that a particular
muscle characteristic plays a stabilizing role related to biomechanical
characteristics (27 articles), followed by neurological characteristics (22
articles) and anatomical/physiological characteristics (4 articles). CONCLUSION:
Based on a synthesis of supporting evidence from the literature, stabilizer
muscles can be defined as muscles that contribute to joint stiffness by
co-contraction and show an early onset of activation in response to perturbation
via either a feed-forward or a feedback control mechanism. These results may
guide researchers to investigate which muscles exhibit these characteristics to
determine whether particular muscles have a stabilizer rather than a prime mover
role during normal functioning.
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