Load-induced increase in muscle activity during 30° abduction in patients with rotator cuff tears and control subjects.

"Declarations Ethics approval and consent to participateThe study protocol was approved by the regional ethics board (Ethics Committee Northwest Switzerland EKNZ 2021-00182) and is registered at clinicaltrials.gov (NCT04819724). Written informed consent was obtained from all participants before participation. This study was conducted in accordance with the Declaration of Helsinki, the principles of Good Clinical Practice, the Human Research Act (HRA) and the Human Research Ordinance (HRO), and other locally relevant regulations. Consent for publicationWritten informed consent for publication of images was obtained from the participant. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Open access funding provided by University of Basel. This work was funded by the Swiss National Science Foundation (SNF #189082) and by the Department of Orthopaedics and Traumatology of the University Hospital Basel. The funding sources were neither involved in the study design, collection, analysis or interpretation of data nor in the writing of the manuscript or in the decision to submit the manuscript for publication."

"Trial registration : Ethical approval was obtained from the regional ethics committee (Ethics Committee Northwest Switzerland EKNZ 2021-00182), and the study was registered at clinicaltrials.gov on 29 March 2021 (trial registration number NCT04819724, https://clinicaltrials.gov/ct2/show/NCT04819724 )."