Table 1.
Basic Characteristics of the Subjects (mean ± SD)
| Variable | All (n = 109) | Men (n = 51) | Women (n = 58) |
|---|---|---|---|
| Age (y) | 83±12 | 83±12 | 83±11 |
| FI34 | 0.190±0.072 | 0.174±0.066 | 0.204±0.075 |
| TDEE (kcal/d) | 2097.5±611.5 | 2439.6±631.1 | 1796.7±402.9 |
| AEE (kcal/d) | 628.5±352.5 | 760.7±393.9 | 494.6±245.7 |
| RMR (kcal/d) | 1259.2±263.8 | 1414.9±242.2 | 1122.4±199.2 |
| FM (kg) | 23.4±8.9 | 22.3±7.9 | 24.3±9.7 |
| FFM (kg) | 48.0±11.5 | 57.1±8.4 | 39.9±6.9 |
| CPK (IU/L) | 89.9±70.7 | 105.8±85.8 | 76.0±50.8 |
| IGF1 (ng/mL) | 158.2±79.4 | 177.3±80.6 | 141.5±75.1 |
| T3 (ng/mL) | 133.4±32.8 | 132.0±34.6 | 134.6±31.5 |
| T4 (ng/mL) | 7.8±1.4 | 7.5±1.2 | 8.0±1.5 |
Notes: AEE = activity energy expenditure; CPK = creatine phosphokinase; FM = fat mass; FFM = fat-free mass; IGF1 = insulin-like growth factor 1; RMR = resting metabolic rate; TDEE = total daily energy expenditure; T3 = triiodothyronine; T4 = thyroxine. Participants were recruited in three age groups 20–34, 60–74, and ≥90 y, of which the latter two groups were considered in this study.