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Table 1 Descriptive data, statistical comparisons, and effect sizes between the two-force-platform and one-force-platform methods

From: The validity of using one force platform to quantify whole-body forces, velocities, and power during a plyometric push-up

  Two-force-platforms method One-force-platform method Confidence interval and statistical significance Effect sizes (Cohen’s d)
Peak GRFs applied to hands (body weight) 1.12 ± 0.23 1.12 ± 0.23

Peak whole-body GRFs (body weight) 1.44 ± 0.21 1.46 ± 0.22 [− 0.03 to − 0.01]
(p < 0.05)
0.09
Peak whole-body velocities (m/s) 0.90 ± 0.23 1.39 ± 0.37 [− 0.59 to − 0.39]
(p < 0.05)
1.59
Peak whole-body power (watt/body weight) 1.03 ± 0.29 1.63 ± 0.47 [− 0.71 to − 0.46]
(p < 0.05)
1.49
GRFs applied to the feet at the starting position (body weight) 0.34 ± 0.04 0.34 ± 0.04

Mean GRFs applied to the feet during the push-up (body weight) 0.30 ± 0.04 0.34 ± 0.04 [− 0.04 to − 0.03]
(p < 0.05)
0.93
Whole-body GRFs at peak whole-body power (body weight) 1.18 ± 0.06 1.19 ± 0.05 [− 0.02 to 0.00]
(p > 0.05)
0.18
Whole-body velocities at peak whole-body power (m/s) 0.85 ± 0.22 1.35 ± 0.36 [− 0.58 to − 0.38]
(p < 0.05)
1.61