Abstract
ABSTRACT This study evaluated the agreement between Kinect V2 with AssessLink and Vicon motion capture systems in children performing the vertical jump (JL) and forward leap (Leap). Eighteen healthy children (5–17 years) performed the movements while recorded simultaneously by both motion capture systems. Spearman correlation (ρ) and Bland-Altman were used to determine joint angle agreement. Overall, agreement varied by body segment, movement type, and phase. JL for knees and shoulder ranged from ρ = −.220 to .543; bias = 8.1 to 23.0° and ρ = −.743 to .410; bias = 8.1 to 56.5°, respectively. Leap had poorer correlation and bias for the appendicular segments (ρ = −.091 to .306; bias = −47.5 to 73.7°) than axial segments (ρ = .345 to .553; bias = 11.3 to 22.9°). The Kinect V2 should not replace criterion kinematic systems, but may improve gross motor assessment methods when selecting for specific movement observations.
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