Diurnal variation in skeletal muscle mitochondrial function dictates time-of-day-dependent exercise capacity.

ABSTRACT: Exercise impinges on almost all physiological processes at an organismal level and is a potent intervention to treat various diseases. Exercise performance is well established to display diurnal rhythm, peaking during the late active phase. However, the underlying molecular/metabolic factors and mitochondrial energetics that possibly dictate time-of-day exercise capacity remain unknown. Here, we have unraveled the importance of diurnal variation in mitochondrial functions as a determinant of skeletal muscle exercise performance. Our results show that exercise-induced muscle metabolome and mitochondrial energetics are distinct at ZT3 and ZT15. Importantly, we have elucidated key diurnal differences in mitochondrial functions that are well correlated with disparate time-of-day-dependent exer

SUBMITTER: Khatri S 

PROVIDER: S-EPMC11792768 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature