Figure 4From: Early motor learning changes in upper-limb dynamics and shoulder complex loading during handrim wheelchair propulsion Linear relationship between the net joint moments (M_dsem) and total compression forces (F_dsem) in the GH joint, shown by the following regression equation: F _ dsem = 33.4 ∗ M _ dsem + 112.1 , with p < 0.01, e = 102.1 N and r = 0.73. Back to article page