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Our muscle mass declines with age, starting at the age of 30. But this loss will remain limited if certain nutritional or physical measures are applied. More than half of our proteins are located in our muscles. The main muscle protein is myosin, responsible for muscle contraction. Assessing our muscle mass is possible at home with impedance scales. The essential nutritional intake is of course proteins, at least 1 g/kg/day. Animal proteins are said to be of higher quality than vegetable proteins. Then vitamin D. Vitamin D increases protein synthesis in the muscles and strengthens muscle contraction. And finally fruits and vegetables, for their antioxidant intake. On a physical level, brisk walking remains very useful. The most effective, however, remains muscle work against resistance. This work is possible at home, using devices such as elastic bands. #medicine #savoirvivreethealth #muscles 00:00 introduction 01:08 assess muscle mass 02:56 nutritional intake for muscle 05:17 exercises to maintain muscle 06:31 summary of nutritional intake and exercises