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Figure 4. Comparison of (a) tendon reflex gain (Gs), (b) contraction rates (Rc), (c) half relaxation rate (Rhr), (d) reflex threshold in peak tendon tapping force (fth), and (e) reflex-loop delay (td) between patients with stroke and nondisabled controls across three elbow flexion angles. Vertical bars represent standard deviation across subjects. Liu J, Xu D, Ren Y, Zhang LQ. Evaluations of neuromuscular dynamics of hyperactive reflexes poststroke.J Rehabil Res Dev. 2011;48(5):577-86.DOI:10.1682/JRRD.2010.04.0065