Muscle loss associated with aging

Muscle loss associated with aging starts early. From the age of 30, muscle tissue undergoes a slow degeneration of the order of 3 to 8% per decade in favor of fat¹. Thus, between 20 and 30 years, musculature represents 30% of body mass and represents only 17% at 70 years. Finally, between 25 and 75 years, muscle mass decreases by half!

When the muscle loss reaches a certain level, it leads to a pathology : the sarcopénie².

Preserving muscle mass throughout its life and detect muscle loss seem essential to promote successful aging.

References :

1. Munro HN. Adaptation of body protein metabolism in adult and aging man. Clin.Nutr. 1982;1:95‑108.

2. Cruz-Jentoft AJ, Baeyens JP, Bauer JM, Boirie Y, Cederholm T, Landi F, et al. Sarcopenia: European Consensus on Definition and Diagnosis Report of the European Working Group on Sarcopenia in Older People. Age Ageing. 7 janv 2010;39(4):412‑423.