Results:
2D-Cam and 2D-Mot data were consistent for side step (RMS = 1.7 ̊) and side jump (RMS = 1.5 ̊)
movements. Between subjects, 2D-Cam and 3D data correlated well for the side step (r2= 0.58) and side jump (r2=0.64). Within subjects, 2D-Cam and 3D data correlated moderately for the side step (r2=0.25 (0.19)) and side jump (r2= 0.36 (0.27)).
Conclusions:
The 2D-Cam method can be used to screen for excessive valgus in elite basketball players, particularly for movements occurring primarily in the frontal plane. This method may also be a useful training evaluation tool when large reductions in dynamic valgus motions are required.