Article

The Microsoft Kinect V2 for Windows, also known as the Xbox One Kinect, includes
new and potentially far improved depth and image sensors which may increase its
accuracy for assessing postural control and balance. The aim of this study was to
assess the concurrent validity and reliability of kinematic data recorded using a
marker-based three dimensional motion analysis (3DMA) system and the Kinect V2
during a variety of static and dynamic balance assessments. Thirty healthy adults
performed two sessions, separated by one week, consisting of static standing
balance tests under different visual (eyes open vs. closed) and supportive
(single limb vs. double limb) conditions, and dynamic balance tests consisting of
forward and lateral reach and an assessment of limits of stability. Marker
coordinate and joint angle data were concurrently recorded using the Kinect V2
skeletal tracking algorithm and the 3DMA system. Task-specific outcome measures
from each system on Day 1 and 2 were compared. Concurrent validity of trunk angle
data during the dynamic tasks and anterior-posterior range and path length in the
static balance tasks was excellent (Pearson's r>0.75). In contrast, concurrent
validity for medial-lateral range and path length was poor to modest for all
trials except single leg eyes closed balance. Within device test-retest
reliability was variable; however, the results were generally comparable between
devices. In conclusion, the Kinect V2 has the potential to be used as a reliable
and valid tool for the assessment of some aspects of balance performance.
CI - Copyright (c) 2015 Elsevier B.V. All rights reserved.

Langue : ANGLAIS