Effect of fast dietary proteins on muscle protein synthesis rate and muscle strength in ad libitum-fed and energy-restricted old rats.

Sarcopenia is defined as age-related loss of muscle mass and strength. Energy restriction (ER) delays fibre loss by limiting the accumulated deleterious effects of reactive oxygen species on muscle. However, insufficient protein intake during ER might affect muscle mass and function.

[Nutrition in aged persons and handicap prevention].

Insufficient intake is common in elderly population which leads to undernutrition. This is often due to eviction of foods and thus to a decrease in micronutriment intake. Diagnosis is easy if patients are asked systematically at each visit, and when an event occurs, even fatigue; a precise interrogatory must be done and criteria for undernutrition must be searched.