Table 5.

Accuracy of muscle activation predictions for the two approaches for the 16 muscles with associated experimental EMG data (top rows) and the 28 muscles without associated experimental EMG data (bottom rows). Accuracy was quantified using mean ± standard deviation of r values for each approach relative to activations constructed from experimental neural commands. Statistically significant differences (p < 0.05) in each quantity are indicated by an asterisk (*).

Muscles	Approach	Medial	Central	Lateral	All
With EMG data	A	0.37 ± 0.24	0.55 ± 0.32	0.28 ± 0.50*	0.36 ± 0.35*
B	0.43 ± 0.25	0.57 ± 0.33	0.44 ± 0.61*	0.45 ± 0.40*
Without EMG data	A	0.42 ± 0.33*	0.47 ± 0.14*	0.64 ± 0.31	0.51 ± 0.31*
B	0.57 ± 0.31*	0.71 ± 0.17*	0.56 ± 0.45	0.59 ± 0.34*