Table 5.
Muscle strength (kg) before and after 16 weeks of resistance exercise in placebo and N-acetyl-4-aminophenol (ACET)-treated men
| Variable | Placebo (n = 7) |
ACET (n = 10) |
Group differencea | ||||
|---|---|---|---|---|---|---|---|
| Baseline | 16 weeks | Differenceb | Baseline | 16 weeks | Differenceb | Difference (95 % CI) | |
| Bench press | 64.0 ± 18.0 | 77.4 ± 23.7 | 13.5 ± 10.2 | 56.6 ± 12.9 | 68.7 ± 14.4 | 12.9 ± 6.0 | 0.3 (−9.0, 9.5) |
| Overhead press | 44.5 ± 16.1 | 51.3 ± 18.1 | 6.8 ± 2.6 | 40.7 ± 11.9 | 45.7 ± 12.8 | 8.5 ± 3.4 | 2.8 (−0.1, 5.6) |
| Seated row | 56.2 ± 19.5 | 65.9 ± 15.5 | 9.7 ± 7.5 | 58.4 ± 10.6 | 69.5 ± 12.1 | 11.1 ± 6.4 | 1.8 (−5.1, 8.7) |
| Lateral pull down | 83.8 ± 23.9 | 104.2 ± 27.2 | 20.5 ± 5.6 | 85.7 ± 16.6 | 106.1 ± 17.9 | 20.5 ± 6.1 | −0.1 (−6.4, 6.1) |
| Knee flexion | 50.0 ± 18.6 | 57.1 ± 20.2 | 7.1 ± 2.0 | 56.8 ± 10.3 | 67.7 ± 12.1 | 11.1 ± 3.5 | 3.5 (0.3, 6.7) |
| Knee extension | 69.2 ± 14.9 | 86.4 ± 16.5 | 20.8 ± 7.2 | 70.7 ± 15.1 | 90.4 ± 16.5 | 19.7 ± 10.4 | −0.9 (−12.3, 10.4) |
| Leg press | 136.4 ± 21.3 | 169.8 ± 33.1 | 33.4 ± 19.0 | 138.9 ± 27.6 | 159.1 ± 37.3 | 20.2 ± 21.8 | −13.6 (−35.9, 8.6) |
| Hip abductionc | 66.2 ± 19.6 | 73.9 ± 20.4 | 7.6 ± 3.4 | 71.4 ± 10.1 | 82.0 ± 10.2 | 10.7 ± 9.8 | 3.6 (−5.0, 12.2) |
| Hip adduction | 68.2 ± 16.4 | 77.9 ± 16.1 | 9.7 ± 3.1 | 74.3 ± 9.6 | 87.5 ± 8.2 | 13.4 ± 5.2 | 4.3 (−0.6, 9.2) |
a
Group difference was estimated using ANCOVA, regressing 16 weeks change on baseline and group
b
All within-group differences were significant (p ≤ 0.02)
c
significantly different between groups at baseline (p = 0.04); mean ± SD