Table 4. Assessment of functional performance and ratings of perceived exertion at baseline and at the end of the intervention perioda.
| Functional performance variables |
Group A (n=8) |
Group B (n=8) |
Group C (n=9) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | Week 12 | % | ES | Baseline | Week 12 | % | ES | Baseline | Week 12 | % | |
| 30-ACT (no) | 14.6±4.7 | 16.3±4.0 | 15.0±20.0 | 0.8 | 17.4±4.0 | 18.6±3.6 | 8.3±13.7 | 0.6 | 18.6±3.0 | 18.7±3.0 | 0.9±11.2 |
| 30-CST (no) | 11.6±3.9b | 12.8±3.9b,c | 11.0±11.5 | 0.5 | 14.1±2.0 | 15.9±3.2 | 13.2±16.0 | 0.5 | 16.4±2.1 | 17.1±2.3 | 4.7±15.7 |
| Relative HST (N/(kg.bw)) | 2.8±0.9 | 3.0±1.0 | 11.5±23.9 | 0.6 | 3.8±1.2 | 3.9±1.3 | 4.8±7.5 | 0.6 | 4.0±1.4 | 3.9±1.3 | −0.2±8.9 |
| 6-WT (m) | 501.6±101.1 | 539.0±83.0c | 8.8±10.0 | 0.9 | 533.9±81.0 | 562.1±72.4c | 5.8±6.6 | 0.7 | 586.0±85.0 | 593.0±82.1 | 1.4±4.5 |
| Average RPE | 11.3±1.7 | 11.0±1.5 | −2.0±9.0b | 1.3 | 11.7±1.0 | 11.1±1.6 | −5.2±10.1 | 1.0 | 13.1±1.6 | 11.3±1.6c | −13.7±5.1 |
Abbreviations: A, standard essential amino-acid mixture (EAAs); B, EAAs containing 40% leucine; C, placebo; ES, Effect Size; HST, handgrip strength test; no, number of repetitions; RPE, rating of perceived exertion; %, mean percentage change from baseline to week 12; 30-CST, 30-s chair-stand test; 30-ACT, 30-s arm-curl test; 6-WT, 6-min walk test.
a
All values are means±standard deviations.
b
Denotes significantly different from placebo (P<0.05) ME= mean of the experimental group, MP=mean of the placebo group. ES Cohen's d =(ME-MP)/SD pooled).
c
Denotes significantly different from baseline value (P<0.05).