Article
Soleus muscle stability in wild hibernating black bears.
American journal of physiology. Regulatory, integrative and comparative physiology - 1 Aug 2018
Riley D A, Van Dyke J M, Vogel V, Curry B D, Bain J L W, Schuett R, Costill D L, Trappe T, Minchev K, Trappe S
Abstract excerpt
Based on studies of fast skeletal muscles, hibernating black and brown bears resist skeletal muscle atrophy during months of reduced physical activity and not feeding. The present study examined atrophy sparing in the slow soleus muscle, known to be highly prone to disuse atrophy in humans and other mammals. We demonstrated histochemically that the black bear soleus is rich in slow fibers, averaging 84.0 ± 6.6%....
Topics
- Animals
- Electron Transport Complex IV
- Energy Metabolism
- Female
- Glycogen
- Hibernation
- Male
- Mitochondria, Muscle
- Muscle Contraction
- Muscle Fibers, Fast-Twitch
- Muscle Fibers, Slow-Twitch