Patterns of glenohumeral joint laxity and stiffness in healthy men and women

Borsa, Paul A.; Sauers, Eric L.; Herling, Derald E.

doi:10.1097/00005768-200010000-00004

Cited by 67 publications

(58 citation statements)

References 25 publications

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“…not significant mobility tests (using the Beighton Score) have shown that a higher percentage of women than men have joint laxity 23,24) . It has also been reported that women exhibited significantly more joint laxity with an associated decrease in anterior joint stiffness compared to men 25) . It is possible that passive and active elements around the shoulder joint influenced the results of the present study, in which women had significantly lower scapular upward rotation and posterior tilt than men during shoulder elevation.…”

Section: Resultsmentioning

confidence: 89%

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Nakayama

Onishi

Nojima

et al. 2018

JPFSM

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The aim of this study was to compare scapular kinematics between men and women during shoulder flexion, scapular plane elevation, and shoulder abduction. Eleven healthy men and 11 healthy women participated in this study. As participants performed shoulder flexion, scapular plane elevation, and abduction at a consistent speed, an electromagnetic motion capture system was used to analyze scapular motion. The change in scapular orientation from its resting position was calculated at 30°, 60°, 90° and 120° of humeral elevation. The study found that scapular upward rotation and posterior tilt angles increased significantly with each successive humeral elevation angle, but less so in women than in men. Scapular internal or external rotation differed significantly according to the plane of elevation, that is the scapula was internally rotated during flexion, with no change during scapular plane elevation, and it was externally rotated during abduction. This variation was more marked in women. This study revealed gender differences in scapular kinematics during shoulder motion. During shoulder elevation, the scapulothoracic joint played a greater role in men than in women, whereas the glenohumeral joint played a greater role in women.

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Section: Resultsmentioning

confidence: 89%

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Nakayama

Onishi

Nojima

et al. 2018

JPFSM

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show abstract

“…It is possible muscle mass [9], laxity [9], and activity levels [2,5] affect ROM differentially across joint motions. Previous studies have shown that nondisabled females have greater ROM than males throughout the shoulder [9]; however, females had greater ROM in only half of the joint motions tested here. One possibility for the sex-directional difference in MWUs could be sexrelated anatomical differences or differences in muscle mass.…”

Section: Sex Differencementioning

confidence: 99%

“…One possibility for the sex-directional difference in MWUs could be sexrelated anatomical differences or differences in muscle mass. For instance, males tend to have more muscle mass in their shoulders [9]. This increased mass could impede movement and consequently result in less ROM than females.…”

Section: Sex Differencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…It is documented in ambulatory populations that females have greater shoulder joint ROM than their male counterparts [9]. It has been proposed that increased ROM in females places them at greater risk for shoulder injuries [9]. It is logical to speculate that increased ROM in female nondisabled populations will also be found in manual wheelchair populations; however, there is minimal evidence of sex differences in ROM in MWUs [10].…”

Section: Introductionmentioning

confidence: 99%

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Sex, shoulder pain, and range of motion in manual wheelchair users

Wessels

Brown

Ebersole

et al. 2013

JRRD

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Abstract-Upwards of 70% of manual wheelchair users (MWUs) experience shoulder pain. Pain is more prevalent among females than males. The causes of this sex discrepancy are not understood. Decreased range of motion (ROM) has been suggested as a major contributor, but the interaction of sex, ROM, and shoulder pain has not been investigated, thus the purpose of this investigation. We divided 30 MWUs (18 males, 12 females; 21.93 +/-3.77 yr) into two groups based on self-reported shoulder pain: pain group (n = 14; 9 males, 5 females) and no pain group (n = 16; 9 males, 7 females). We used a digital goniometer to assess ROM. Participants' shoulder active and passive ROMs were tested bilaterally on the following joint motions: flexion, extension, abduction, adduction, internal rotation, and external rotation. We used a visual analog scale to assess shoulder pain. Of the participants, 47% reported shoulder pain. Overall, the no pain group had greater ROM than the pain group, with further analysis revealing this association was only significant in females during extension (p < 0.05). ROM impairments were only present in extension in females with shoulder pain. The mechanism underlying this sex difference is not clear.

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Considerations of Sex Differences in Musculoskeletal Anatomy

Sizer¹,

James²

2013

The Active Female

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Patterns of glenohumeral joint laxity and stiffness in healthy men and women

Cited by 67 publications

References 25 publications

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Analysis of scapular kinematics in three planes of shoulder elevation: A comparison between men and women

Sex, shoulder pain, and range of motion in manual wheelchair users

Considerations of Sex Differences in Musculoskeletal Anatomy

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