Sex-related differences in motor unit behavior are influenced by myosin heavy chain during high- but not moderate-intensity contractions.

Alex A Olmos,Adam J Sterczala,Mandy E Parra,Hannah L Dimmick,Jonathan D Miller,Jake A Deckert,Stephanie A Sontag,Philip M Gallagher,Andrew C Fry,Trent J Herda,Michael A Trevino

Acta physiologica (Oxford, England)（2023）

引用 0|浏览3

暂无评分

摘要

Both sexes exhibited an inverse relationship between MU firing rates and recruitment thresholds. However, the sex-related differences in MU recruitment and firing rate patterns and N-EMG at 70% MVC were likely due to greater type I% MHC and smaller twitch forces of the higher threshold MUs for the females. Evidence is provided that muscle fiber composition may explain divergent MU behavior between sexes.

查看译文

关键词

motor unit, myosin heavy chain, sex differences, vastus lateralis

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要