Table 2.
Characteristics of participants completing the study (intend-to-treat analyses).
| N | Placebo Group | N | Protein Group | p | |
|---|---|---|---|---|---|
| Age (years) | 13 | 81.7 (6.45) | 15 | 82.9 (5.59) | 0.607 |
| Women (N, %) | 13 | 7 (53.8) | 15 | 7 (46.7) | 0.717 |
| Body mass (kg) | 13 | 75.9 (17.95) | 15 | 68.0 (11.43) | 0.188 |
| BMI (Kg/m2) | 13 | 30.8 (6.53) | 15 | 27.4 (3.50) | 0.110 |
| Physical Function | |||||
| Handgrip (kg/body mass) | 13 | 0.3 (0.09) | 15 | 0.4 (0.09) | 0.063 |
| SFT chair stand test 30sec | 13 | 10.6 (4.17) | 15 | 12.3 (2.97) | 0.229 |
| SFT arm curl test 30sec | 13 | 13.5 (5.22) | 15 | 16.3 (3.92) | 0.137 |
| SFT 6MWT (m) | 13 | 314.8 (139.36) | 15 | 411.5 (80.40) | 0.040 |
| SPPB total punctuation | 13 | 8.7 (2.36) | 15 | 10.1 (1.58) | 0.089 |
| SPPB 5Squat | 13 | 14.7 (6.85) | 15 | 12.2 (2.86) | 0.232 |
| Body composition | |||||
| Waist to hip ratio | 13 | 1.00 (0.07) | 15 | 0.98 (0.09) | 0.459 |
| Lean mass arms (kg) | 13 | 2.3 (0.67) | 15 | 2.3 (0.44) | 0.897 |
| Lean mass legs (kg) | 13 | 6.8 (1.70) | 15 | 6.4 (1.08) | 0.441 |
| Lean mass trunk (kg) | 13 | 23.0 (4.83) | 15 | 21.5 (3.89) | 0.380 |
| Total lean mass (kg) | 13 | 45.2 (9.85) | 15 | 42.3 (6.63) | 0.391 |
| Fat mass arms (%) | 13 | 2.6 (0.96) | 15 | 2.4 (0.77) | 0.545 |
| Fat mass legs (%) | 13 | 5.8 (1.85) | 15 | 5.4 (1.84) | 0.603 |
| Fat mass trunk (%) | 13 | 17.1 (3.87) | 15 | 14.9 (3.03) | 0.124 |
| Total fat mass (%) | 13 | 35.4 (8.05) | 15 | 32.1 (6.84) | 0.259 |
| Nutritional Status | |||||
| MNA score | 13 | 23.1 (3.82) | 15 | 24.5 (2.11) | 0.273 |
| Normal nutritional status (N, %) | 13 | 4 (30.8) | 15 | 11 (73.3) | 0.064 |
| At risk of malnutrition (N, %) | 13 | 8 (61.5) | 15 | 4 (26.7) | |
| Malnourished (N, %) | 13 | 1 (7.7) | 15 | 0 (0) | |
| Biomarkers | |||||
| Creatinine (mg/dL) | 10 | 1.1 (0.48) | 15 | 0.9 (0.35) | 0.401 |
| Albumin (g/dL) | 13 | 4.0 (0.39) | 15 | 4.0 (0.31) | 0.994 |
| Prealbumin (mg/dL) | 12 | 22.2 (6.63) | 14 | 23.3 (4.31) | 0.613 |
BMI: body mass index; MNA score: Mini Nutritional Assessment score; SFT chair stand test 30 s: Senior Fitness Test chair stand test 30 s; SFT arm curl test 30 s: Senior Fitness Test arm curl test 30 s; SFT 6MWT (m): Senior Fitness Test 6-min Walking Test (m); SPPB total punctuation: Short Physical Performance Battery total punctuation; SPPB 5Squat: Short Physical Performance Battery 5Squat. Values are means and standard deviations.