Subacromial Impingment Syndrome does not alter muscle onset activation patterns in the shoulder

29/05/20
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A study led by researchers from UIC Barcelona reveals that this syndrome does not change the activation time of our periscapular prime-moving, and rotator cuff muscles

Subacromial Impingment Syndrome does not alter muscle onset activation patterns in the shoulder
Published in the journal Musculoskeletal Science and Practice, the study demonstrates that Subacromial Impingment Syndrome (SIS) does not alter muscle onset activation patterns during shoulder cardinal movement at different speeds and loads. The study is based on Silvia Ortega-Cebrián’s doctoral thesis and was conducted in collaboration with Caritat Bagur-Calafat and Laia Monné Guasch, all of whom are lecturers and researchers from the Department of Physiotherapy at UIC Barcelona. 
 
The results of the study titled Subacromial Impingment Syndrome does not alter muscle onset activation patterns during shoulder cardinal movement at different speed and load, show that speed and load appear to independently vary muscle activation timing in a non-intuitive manner, both in people that have been diagnosed with SIS, and in those who haven’t.  
 
The study claims that “the lack of different firing neuromuscular patterns in subjects diagnosed with SIS and healthy subjects, raises the need to consider individual assessment of motor patterns rather than generalised patterns”.