Table 2.
Peak Muscle Strength Data.
| Velocity | 30 Degrees/s | 120 Degrees/s | 240 Degrees/s | |||
|---|---|---|---|---|---|---|
| Time | AM | PM | AM | PM | AM | PM |
| PLA | 192.7 ± 39.1 | 190.7 ± 38.7 | 171.3 ± 31.7 | 171.7 ± 29.5 | 154.6 ± 28.6 | 157.9 ± 29.9 |
| CAF | 194.1 ± 47.5 | 202.3 ± 41.8 | 171.3 ± 33.0 | 174.7 ± 29.2 | 158.4 ± 33.6 | 160.0 ± 26.1 |
| PLA vs. CAF | 0.9 ± 4.4 | 5.2 ± 3.6 | −0.3 ± 3.5 | 1.3 ± 3.1 | 2.0 ± 3.1 | 0.8 ± 3.6 |
| (−0.3 ± 4.3) | (5.94 ± 3.5) | (−0.1 ± 3.3) | (1.9 ± 2.9) | (2.0 ± 2.9) | (1.8 ± 3.6) | |
| 12/85/3 | 72/28/0 | 4/91/6 | 10/90/1 | 18/81/0 | 9/89/2 | |
| Likely Trivial | Possible; p = 0.07 | Likely Trivial | Likely Trivial | Likely Trivial | Likely Trivial | |
| AM vs. PM | −4.3 ± 5.5 (−6.19 ± 5.4) | −1.6 ± 4.6 (−2.0 ± 4.3) | 1.3 ± 4.6 (0.2 ± 4.5) | |||
| 1/46/53; Possible; p = 0.06 | 3/75/22; Likely Trivial | 19/77/4; Likely Trivial | ||||
Values for Placebo (PLA) and Caffeine (CAF) reported as Mean ± SD. AM, morning; PM, afternoon. Comparison values reported as adjusted (actual in parenthesis). Mean ± 90% CI for differences between change scores (i.e., AM vs. PM), % likelihoods of positive effect/trivial effect/negative effect and semantic inferences.