Subacromial Impingement Syndrome (SIS) / Subacromial Pain Syndrome (SAPS) Introduction Subacromial Impingement Syndrome (SIS), now more inclusively termed Subacromial Pain Syndrome (SAPS), remains the leading cause of shoulder pain in primary care, accounting for 44% to 65% of shoulder-related consultations (Umer et al., 2012; Yuan et al., 2022). It encompasses a spectrum of pathologies including […]