Optimization of the Preservation of Muscle Mass and / or Its Recovery by a Protein-energy Chrononutrition Approach Dissociated From Meals

In addition to their normal meal, patients will eat 30g of whey protein every lunch during 90 days.

In addition to their normal meal, patients will eat 30g of whey protein every lunch during 90 days and eat 60g of carbohydrates 2h after every diner during 90 days.