A cadaveric study of strain on the subscapularis muscle

Muraki, Takayuki, Aoki, Mitsuhiro, Uchiyama, Eiichi, Takasaki, Hiroshi, Murakami, Gen and Miyamoto, Shigenori (2007) A cadaveric study of strain on the subscapularis muscle. Archives of Physical Medicine and Rehabilitation, 88 7: 941-946.


Author Muraki, Takayuki
Aoki, Mitsuhiro
Uchiyama, Eiichi
Takasaki, Hiroshi
Murakami, Gen
Miyamoto, Shigenori
Title A cadaveric study of strain on the subscapularis muscle
Journal name Archives of Physical Medicine and Rehabilitation  (ERA 2012 Listed)    (ERA 2010 Rank A)   Check publisher's open access policy
Publication date 2007-07
Sub-type Article
DOI 10.1016/j.apmr.2007.04.003
Volume number 88
Issue number 7
ISSN 0003-9993
Start page 941
End page 946
Total pages 6
Place of publication United States
Publisher WB Saunders Co.
Collection year 2008
Language eng
Abstract Muraki T, Aoki M, Uchiyama E, Takasaki H, Murakami G, Miyamoto S. A cadaveric study of strain on the subscapularis muscle. Objectives: To measure the strain on 3 fiber groups of the subscapularis muscle at various glenohumeral joint positions and to determine the appropriate shoulder position for subscapularis muscle stretching. Design: Repeated-measures design. Setting: Biomechanics laboratory. Specimens: Nine frozen-thawed glenohumeral joints obtained from 9 fresh cadavers. Interventions: Not applicable. Main Outcome Measure: The strain on the upper, middle, and lower fiber groups of the subscapularis were measured by precise displacement sensors during 14 different glenohumeral joint positions. Results: The glenohumeral joint position that showed the largest strain varied among the 3 fiber groups. Although no position showed significantly large strain on the upper and middle fiber groups, external rotation at 30°, 60°, and 90° of elevation, abduction, flexion, and horizontal abduction revealed significantly greater strain on the lower fiber groups (P<.005). Additionally, except for external rotation at 0° of elevation, the strain on the lower fiber group was significantly greater than that on the upper and middle fiber groups in external rotation (P<.005). Conclusions: The stretching position of each fiber group of the subscapularis differs depending on the glenohumeral joint position. External rotation at 30° to 60° of glenohumeral elevation, abduction, flexion, and horizontal abduction can significantly stretch the lower fiber group of the subscapularis muscle. © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation.
Keyword Cadaver
Muscles
Rehabilitation
Sprains and strains
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article
Collection: School of Health and Rehabilitation Sciences Publications
 
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Created: Tue, 01 Mar 2011, 20:37:05 EST by Mr Hiroshi Takasaki on behalf of School of Health & Rehabilitation Sciences