Fig. 1From: Causal mechanisms of a scapular stabilization intervention for patients with subacromial pain syndrome: a secondary analysis of a randomized controlled trialDirected Acyclic Graph (DAG) of the hypothesized causal pathway of scapular stabilization exercises effect on pain. The scapular motion, position and periscapular muscle strength are putative mediators, while the pain duration and age are confounders of the mediator-outcome path. The periscapular muscle strength was also considered as a confounder of the relation between scapular motion and position and the outcomeBack to article page