Table 1.
Participant baseline characteristics
| Variable | Placebo | EAA | All |
|---|---|---|---|
| Means ± SE or % | Means ± SE or % | Means ± SE or % | |
| % Female | 77.3% | 52.6% | 65.9% |
| Age, yr | 63.82 ± 1.29 | 64.95 ± 1.35 | 64.34 ± 0.93 |
| Height, m | 1.66 ± 0.02 | 1.71 ± 0.02 | 1.68 ± 0.01 |
| Weight, kg | 89.24 ± 4.85 | 86.90 ± 4.13 | 88.15 ± 3.20 |
| Body mass index, kg/m2 | 30.66 ± 2.13 | 29.71 ± 1.00 | 30.21 ± 1.22 |
| Tourniquet time, min | 58.40 ± 5.35 | 51.25 ± 4.57 | 54.63 ± 3.65 |
| TKA operation time, min | 97.24 ± 4.17 | 93.42 ± 4.96 | 95.64 ± 3.26 |
| Physical activity, kcal/day | 319.71 ± 56.97 | 408.15 ± 45.37 | 361.60 ± 37.12 |
Values are expressed as means ± SE; n = 41. EAA, essential amino acids; TKA, total knee arthroplasty.