1. Hollozy, J. O. Biochemical adaptations in muscle. Effects of exercise on mitochondrial oxygen uptake and respiratory enzyme activity in skeletal muscle. J. Biol. Chem. 242, 2278–2282 (1967).
2. Green, H. J., Thomson, J. A., Daub, W. D., Houston, M. E. & Ranney, D. A. Fiber composition, fiber size and enzyme activities in vastus lateralis of elite athletes involved in high intensity exercise. Eur. J. Appl. Physiol. Occup. Physiol. 41, 109–117 (1979).
3. Lira, V. A., Benton, C. R., Yan, Z. & Bonen, A. PGC-1alpha regulation by exercise training and its influences on muscle function and insulin sensitivity. Am. J. Physiol. 299, E145–E161 (2010).
4. Romanello, V. & Sandri, M. Mitochondrial quality control and muscle mass maintenance. Front. Physiol 6, 1–21 (2016).
5. Tseng, B. S., Marsh, D. R., Hamilton, M. T. & Booth, F. W. Strength and aerobic training attenuate muscle wasting and improve resistance to the development of disability with aging. Cell Signal. 50, 113–119 (2015).