. 2017 May 22;11:17. doi: 10.3389/fnbot.2017.00017

Table 4.

Intersubject regression of stiffness from force and EMG.

Subjects	S1	S2	S3	S4	S5	S6	S7	S8	S9	S10
EMG_FDP	+++	–	–	++	.	–	–	–	–	–
EMG_FDS	–	–	+	–	.	++	.	++	+	+
EMG_EIP	–	–	–	++	–	–	–	.	–	–
EMG_ED	–	–	–	–	–	–	–	–	+	.
EMG_FDI	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
EMG_SDI	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
Force	+++	+++	+++	+++	+++	+++	+++	+++	+++	+++
R² [%]	61	90	67	70	79	62	90	57	68	76

–, no significance; ., p ≤ 0.05; +, p ≤ 0.01; ++, p ≤ 0.001; +++, p ≤ 0.0001.

The significance of the respective coefficients and models’ coefficient of determination are listed for each subject. Note that the model is cross-validated (leave-one-subject-out).