Effects of muscle fatigue on 3-dimensional scapular kinematics1 Nian-Tuen Tsai, MS, PT, Phil W. McClure, PhD, PT, Andrew R. Karduna, PhD Archives of Physical Medicine and Rehabilitation Volume 84, Issue 7, Pages 1000-1005 (July 2003) DOI: 10.1016/S0003-9993(03)00127-8
Fig 1 Experimental placement of the Polhemus transmitter and receivers. Archives of Physical Medicine and Rehabilitation 2003 84, 1000-1005DOI: (10.1016/S0003-9993(03)00127-8)
Fig 2 Schematic identification of scapular landmarks and axes of rotation. Archives of Physical Medicine and Rehabilitation 2003 84, 1000-1005DOI: (10.1016/S0003-9993(03)00127-8)
Fig 3 Mean change in 3-dimensional scapular rotations due to fatigue protocol (data represent after minus before): (A) anterior/posterior (AP) tilting, (B) upward/downward rotation, and (C) internal/external rotation. Error bars represent the SE of the mean. ∗P<.05. Archives of Physical Medicine and Rehabilitation 2003 84, 1000-1005DOI: (10.1016/S0003-9993(03)00127-8)
Fig 4 Representative correlation between scapular anterior/posterior tilting and percentage decrease of external rotation torque production. This example is at the minimal position of humeral elevation (r=0.6, P<.01). Archives of Physical Medicine and Rehabilitation 2003 84, 1000-1005DOI: (10.1016/S0003-9993(03)00127-8)