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