English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

[Purpose] To clarify rotator cuff muscular activity in the raised position in closed kinetic chain (CKC) exercise. [Subjects] Twenty-nine cases were studied, 19 men and 10 women (average age 21.5 ± 4.7 years old, average body weight 60.1 ± 11.4 kg, average grip strength 34.35 ± 6.9 kg). [Methods] To determine the effects of CKC exercise on the upper limb, we measured the surface EMG of the infraspinatus, trapezius (upper fiber) and deltoid (middle fiber) muscles with the arm elevated. [Results] Our measurements revealed that at 150° elevation in the scapular plane of the upper limb, with 5% body weight load, the EMG activity of the infraspinatus muscle is approximately 30% maximum voluntary contraction (MVC). [Conclusion] The raised position in CKC exercise is effective in physical therapy for functional recovery of the infraspinatus muscle.

EMG Examination of Shoulder Muscle Activities in Elevation Focusing on the Rotator Cuff Muscles in CKC Exercise