Figure 3
From: Influence of the initial foot contact strategy on knee joint moments during stair and ramp descent
Magnitude of the GRF during (a) stair and (b) ramp descent. R and F indicate a significantly greater GRF for the RFS and FFS, respectively, at the moment peaks of the corresponding plane. *P < 0.05, **P < 0.01, ***P < 0.001.
