Table 4.

Increase (+) or decrease (–) in estimation accuracy (r, Pearson's correlation coefficient; RMSE, root-mean-squared error; rRMSE, relative root-mean-squared error) due to independent model building in comparison to the combined model.

Locomotion task		KFM*			KAM*
	r	RMSE (Nm/kg)	rRMSE (%)	r	RMSE (Nm/kg)	rRMSE (%)
Walking straight	0.03	0.00	0.50	−0.20	0.05	2.64
90° walking turn	−0.02	0.03	1.56	−0.08	0.07	0.09
Moderate running	−0.02	0.18	1.31	−0.10	0.09	−1.58
Fast running	−0.03	0.15	0.90	−0.04	0.20	1.87
90° running turn	−0.08	0.11	0.85	−0.14	0.16	−0.87
45° cutting maneuver	−0.07	0.44	1.94	0.26	0.22	−0.57
Mean	−0.03	0.15	1.18	−0.05	0.13	0.26

KFM^*, knee flexion moment; KAM^*, knee adduction moment.