Date of download: 1/3/2018 Copyright © ASME. All rights reserved. From: Ground Reaction Forces and Lower Extremity Kinematics When Running With Suppressed Arm Swing J Biomech Eng. 2009;131(12):124502-124502-5. doi:10.1115/1.4000088 Figure Legend: (a–c) Hip, (d–f) knee, and (g–i) ankle joint angles during normal running (shaded), running with the arms held across the chest (RC, solid line), and running with the arms held behind the back (RB, dashed line). Shaded areas are ±2 within-subject standard deviations for condition N. FL/EX=flexion/extension; AD/AB=adduction/abduction; IR/ER=internal/external rotation; DF/PF=dorsiflexion/plantarflexion; IN/EV=inversion/eversion.