Category
Muscle & Tendon
Document Type
Paper
Abstract
Females experience more shoulder pathology compared to males, which is partly attributed to differences in muscle excitation between the sexes. We determined if upper trapezius (UT) excitation distribution differed at rested and fatigue at three tertiles of shoulder flexion. Twenty-eight participants completed a repeated arm elevation task to volitional fatigue while holding a load relative to 30% of their maximum isometric shoulder flexion force while high density electromyography was collected from the UT. Statistical parametric mapping t-tests between males and females excitation map for each tertile at rested and fatigue revealed that UT excitation differed in 168 pixels (~43% of the map) between the sexes during tertile 2 at rested, with no other significance differences. Further research is needed to understand females’ higher risk for shoulder pathology.
Recommended Citation
Harrison, Kara-Lyn; Franklin, Rebecca; Kaluzny, Melina; and Scribbans, Trisha D.
(2024)
"THE SEXES EXHIBITED SIMILAR PATTERNS OF UPPER TRAPEZIUS EXCITATION DISTRIBUTION AT REST AND WITH FATIGUE DURING REPEATED ARM ELEVATION,"
ISBS Proceedings Archive: Vol. 42:
Iss.
1, Article 210.
Available at:
https://commons.nmu.edu/isbs/vol42/iss1/210
