Scapular Dyskinesis Among Competitive Swimmers

Scapular Dyskinesis Among Competitive Swimmers

Dr. GJohn Mullen Blog, Injuries, Latest&Greatest, Training 3 Comments

Scapular dyskinesis among competitive swimmers.

To evaluate the prevalence of scapular dyskinesis (SD) in competitive swimmers during training sessions.


Repeated measurement observational study. 20 young competitive swimmers were filmed before, at midpoint and at the end of a training session, performing shoulder flexion and abduction. scapular dyskinesis was examined separately by two assessors. Demographic and Quick Disabilities of the Arm, Shoulder, and Hand questionnaires were collected.


Scapular dyskinesis was observed in 30% of the swimmers before training, in 70%, an hour later, and in 80%, upon completion of the training session. The difference between the baseline and mid-practice was close to significance (p-value = 0.055), and between mid-practice and end of practice was significant (p = 0.004).


This study confirmed that the prevalence of scapular dyskinesis increases throughout a training session in most swimmers. The main reason might be fatigue of the muscles which stabilize the scapula, therefore, when examining a sportsmen’s shoulder, it is important to examine the SD post-training or following simulation of the training session in the clinic.

Practical Implication: 

Scapular dyskinesis increases during a fatiguing practice. Therefore, coaches should focus on strengthening the scapular muscles, particularly with overhead motion to reduce shoulder injury in practice.


  1. Maor MB, Ronin T, Kalichman L. Scapular dyskinesis among competitive swimmers. J Bodyw Mov Ther. 2017 Jul;21(3):633-636. doi: 10.1016/j.jbmt.2016.11.011. Epub 2016 Nov 27.

Comments 3

      1. Thanks for the reply.
        However, Orthopaedic Journal of Sports Medicine has recently published a new paper about this topic in swimmers. It can be downloaded from january 2018 volume, its statistic seems to be more powerful

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