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. 2004 Nov 18;101(48):16784–16788. doi: 10.1073/pnas.0405736101

Table 1. Summary of single-leg peak reaction forces produced during a step.

Direction Slap, % (n) Stroke, % (n)
Vertical 113 ± 8 (5) 39 ± 6 (3)
Fore—aft 63 ± 8 (5) 47 ± 14 (4)
Transverse 79 ± 17 (3) -37 ± 13 (3)

Positive reaction forces point up, forward, and medial to the foot being analyzed. Results are presented as mean percent of body weight ± SEM, followed by the number of individuals analyzed in parentheses. Twenty-four total sequences were analyzed (two to six sequences per individual).