Table 2 Correlation and simple regression to predict the two-force-platform variables from the one-platform variables

Peak GRFs applied to hands (body weight)

–

–

–

–

Peak whole-body GRFs (body weight)

r = 0.99

(p < 0.05)

y = 0.97x + 0.20

r² = 0.97

Peak whole-body velocities (m/s)

r = 0.60

(p < 0.05)

y = 0.37x + 0.39

r² = 0.35

Peak whole-body power (watt/body weight)

r = 0.63

(p < 0.05)

y = 0.38x + 0.42

r² = 0.39

GRFs applied to the feet at the starting position (body weight)

–

–

–

–

Mean GRFs applied to the feet during the push-up (body weight)

r = 0.92

(p < 0.05)

y = 0.93x – 0.01

r² = 0.84

Whole-body GRFs at peak whole-body power (body weight)

r = 0.72

(p < 0.05)

y = 0.74x + 0.30

r² = 0.50

Whole-body velocities at peak whole-body power (m/s)

r = 0.59

(p < 0.05)

y = 0.38x + 0.38

r² = 0.34