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   Check publisher's open access policy
ISSN 0003-9993
Publication date 2007-07
Sub-type Article (original research)
DOI 10.1016/j.apmr.2007.04.003
Volume 88
Issue 7
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 (original research)
Collection: School of Health and Rehabilitation Sciences Publications
 
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Created: Tue, 01 Mar 2011, 20:37:05 EST by Dr. Hiroshi Takasaki on behalf of School of Health & Rehabilitation Sciences