“Push-ups on Unstable Surfaces Increase Muscle Activity in Those Without Scapular Dyskinesis: Push-Up Plus Exercises Most Effective”

https://pubmed.ncbi.nlm.nih.gov/38116582

Performing push-ups on unstable surfaces increases upper trapezius, middle trapezius, and serratus anterior muscle activity in individuals without scapular dyskinesis, with push-up plus exercises being the most effective for increasing muscle activity.