• Immune functions [ Time Frame: 42 days ]
• Hand-grip strength [ Time Frame: 42 days ]
• Biological nutritional parameters [ Time Frame: 42 days ]
• Mortality and morbidity (infections and bedsores) [ Time Frame: 42 days ]
• Activity of Daily Living (ADL) [ Time Frame: 42 days ]
• Plasmatic amino acid levels [ Time Frame: 42 days ]

• Immune functions at 42 days
• Hand-grip strength at 42 days
• Biological nutritional parameters at 42 days
• Mortality and morbidity (infections and bedsores) at 42 days
• Activity of Daily Living (ADL) at 42 days
• Plasmatic amino acids levels

The researchers tested the hypothesis that a protein pulse-feeding pattern was more efficient in improving muscle mass and immune functions than was a protein spread-feeding pattern, after 45 days, in elderly malnourished patients.

To estimate the amelioration of the accretion in protein and the immunizing deficit thanks to a nutrition "PULSEE" ( to hold on 80 % of the proteic by day in on meal) with a proteic distributed all along the day for old subjects having a denutrition

To also estimate that the diminution of the morbidity decrease (infections, bedsores) the average during the stay and the mortality according to 2 modalities of grip nutritional

• Dietary Supplement: Protein pulse-feeding
• Dietary Supplement: Spread diet

• Experimental: Protein pulse-feeding
• Active Comparator: Spread diet

Inclusion Criteria:

• Must be malnourished
• Hospitalization into a geriatric rehabilitation care unit
• Age > 70 years
• C-reactive protein (CRP) < 50 mg/l

Exclusion Criteria:

• Enteral or parenteral nutrition
• Renal, cardiac or digestive insufficiency
• Diabetes
• Pacemaker
• Mini-Mental State (MMS) < 15