Table 3.
Performance tasks and changes in physiological variables (mean ±[s.d.], n = 22) in two experimental conditions; Pseudoephedrine (PSE) and placebo (PLA), *indicates significant difference between treatments, P < 0.05.
| Variable | PSE | Placebo | P value | 95% CI |
|---|---|---|---|---|
| Leg extension | ||||
| Torque (N m−1) | 321.1 [62.0] | 295.7 [72 4] | 0.01* | 15.3, 40.0 (r = 0.91) |
| M. activation (%) | 96.9 [2, 4] | 95.3 [2, 4] | 0.07 | −0.3, 2.7 (r = 0.20) |
| 30 s cycle sprint | ||||
| Peak power (W) | 1262.5 [48 5] | 1228.4 [47 1] | 0.03* | 4.4, 61.5 (r = 0.95) |
| Total work (kJ) | 26.1 [3, 8] | 25.6 [3, 8] | 0.14 | −0.2, 1.1 (r = 0.92) |
| Bench press | ||||
| 1RM Weight (kg) | 88.9 [2, 21] | 88.0 [1, 22] | 0.38 | −1.2, 2.7 (r = 0.98) |
| 70% repetitions | 10.9 [2, 8] | 11.1 [2, 8] | 0.75 | −1.3, 1.1 (r = 0.53) |
| Heart rate | ||||
| (n = 7, beats min−1) | ||||
| Constant | 175.5 [2, 20] | 166.3 [26 3] | 0.01* | −0.6, 5.8 (r = 0.88) |
| Coefficient | −37.6 [29 6] | −40.1 [9, 16] | 0.71 | |
| Lactate (mmol l−1) | ||||
| Peak value | 13.1 [1, 8] | 13.3 [2, 7] | 0.70 | −1.2, 1.3 (r = 0.43) |
Heart rate constant: The constant value was obtained by applying a line of best fit to the recovery heart rate data. This value represents the maximum heart rate or heart rate recorded immediately after the cycle sprint. Heart rate coefficient: The coefficient value was obtained by applying a line of best fit to the recovery heart rate data. This value represents the slope of the plotted line or decay of the heart rate during recovery. 95% CI: 95% confidence interval for the differences between PSE and PLA conditions. M. activation (%): Muscle activation.