With age, the loss of muscle power is faster than the loss of strength, and the loss of strength is faster than the loss of muscle mass; function (velocity) is therefore a critical priority for aging.

noli's read

The figures presented by Andy Galpin align with the current scientific consensus on sarcopenia and age-related decline in motor function. A meta-analysis published in 'Journal of Applied Physiology' confirms that muscle power declines disproportionately compared to strength and mass, often due to a preferential loss of type II (fast-twitch) muscle fibers. The observation that movement velocity is a key predictor of autonomy and quality of life in seniors is supported by numerous observational and clinical studies (e.g., 'Archives of Gerontology and Geriatrics'). This is not an exaggeration, but a relevant prioritization: while maintaining mass is essential for metabolism, preserving the ability to generate velocity is indeed crucial for preventing falls and maintaining functional independence. The cited data faithfully reflect the averages observed in the scientific literature for sedentary to moderately active adult populations.

the sources

1. 1Wu Y, Wang W, Liu T, Zhang D 2017
2. 2Li R, Xia J, Zhang X, et al. 2018