Table 1.

Accuracy of knee contact force predictions for the two approaches. Accuracy was quantified using mean ± standard deviation of MeanD, R², RMSE, and r values for each approach relative to the experimental measurements. Statistically significant differences (p < 0.05) in each quantity are indicated by an asterisk (*).

Quantity	Approach	Medial	Lateral	Total
MeanD (N)	A	−0.3 ± 12.4*	1.3 ± 20.4*	1.1 ± 23.3*
B	223.6 ± 45.5*	145.1 ± 44.7*	368.7 ± 65.7*
R2	A	0.97 ± 0.01*	0.88 ± 0.05*	0.96 ± 0.02*
B	0.10 ± 0.28*	−3.43 ± 1.74*	−0.36 ± 0.24*
RMSE (N)	A	52.6 ± 16.4*	56.6 ± 9.5*	92.8 ± 26.0*
B	322.8 ± 63.9*	347.8 ± 33.1*	559.9 ± 32.1*
r	A	0.99 ± 0.01*	0.95 ± 0.02*	0.98 ± 0.01*
B	0.90 ± 0.03*	−0.10 ± 0.10*	0.74 ± 0.07*