**Appendix A**

**Table A1.** Comparison of the first-generation Microsoft Kinect V1 (K1) and the second-generation Microsoft Kinect V2 (K2). The K2 boasts improved motion sensing hardware, particularly in resolution, field of view, and sensing algorithms. This is adapted from Pagliari and Pinto (2015) [25].


RGB: red-green-blue; USB: universal serial bus.

**Table A2.** Validity measured by mean bias (Bias) and Bland-Altman limits of agreement, lower bound (LB) and upper bound (UB), for K1 and K2 in comparison to VMC on D1.



**Table A2.** *Cont.*

Bias: mean bias of VMC-Kinect for each sensor; LB: lower bound for Bland-Altman limits of agreement; UB: Upper bound for Bland-Altman limits of agreement; K1: KinectV1; K2: KinectV2; VMC: video motion capture; D1: day one of testing.



\* *p* < 0.05 for Pearson's correlation between D1 and D2. K1: Kinect V1; K2: KinectV2; VMC: video motion capture; D1: day one of testing; D2: day two of testing.

**Table A4.** Reliability analysis using mean bias (Bias) and Bland-Altman limits of agreement, lower bound (LB) and upper bound (LB), to compare all three sensors across testing days D1 and D2.


Bias: mean bias of D1-D2 for each sensor; LB: lower bound for Bland-Altman limits of agreement; UB: Upper bound for Bland-Altman limits of agreement; K1: KinectV1; K2: KinectV2; VMC: video motion capture.
