Table 1. Comparisons of countermovement jump height across all time points within- and between-condition (mean ± SD).
Condition Time points Effect Size (Compared with baseline)
Baseline 30 s 3 min 6 min 9 min 30 s 3 min 6 min 9 min
Control 24.77 ± 0.58 24.55 ± 0.59 24.74 ± 0.65 24.6 ± 0.62 24.42 ± 0.58* -0.38 (small) -0.05 (trivial) -0.29 (small) -0.61 (moderate)
DJ 24.57 ± 0.7 25.37 ± 0.71* 24.96 ± 0.8 24.84 ± 0.75 24.56 ± 0.74 1.13 (large) 0.52 (moderate) 0.38 (small) -0.01 (trivial)
OPL 25.04 ± 0.63 24.83 ± 0.65 24.67 ± 0.64 24.75 ± 0.59 25.44 ± 0.69 -0.33 (small) -0.57 (moderate) -0.48 (small) 0.61 (moderate)
Effect Size Control vs. DJ 1.25 (large) 0.3 (small) 0.36 (small) 0.2 (small)
Control vs. OPL 0.45 (small) -0.11 (trivial) 0.25 (small) 1.6 (large)
DJ vs. OPL -0.79 (moderate) -0.39 (small) -0.14 (trivial) 1.24 (large)
DJ: Drop jump; OPL: Optimal power load;
*P < 0.05: Statistically significant differences compared with baseline;
†P < 0.05: Statistically significant differences compared with control condition.