The aim of this study was to (a) compare the scapular kinematics of asymptomatic swimmers and healthy non-athletes and to (b) compare the scapular kinematics of the dominant and non-dominant shoulders in asymptomatic young swimmers.

This cross-sectional study included 27 volunteered asymptomatic young swimmers (mean age: 12.7 yrs) with at least 3 years of experience in a professional swimming club and 22 healthy non-athletes (mean age: 11.5 yrs). 3D scapular kinematics were evaluated at 0°, 30º, 60º, 90º, and 120º with the electromagnetic tracking system during bilateral arm elevation and lowering on the scapular plane. The differences in the scapular kinematics of the dominant and the non-dominant side in both groups were analyzed with 2 by 8 Mixed Model ANOVA.

Inclusion Criteria:

• Absence of shoulder pain in the last 6 months,
• No discomfort in the shoulder joint during swimming,
• Use of symmetrical breathing patterns in training competitions

Exclusion Criteria:

• Participants with a history of upper extremity injury (dislocation, fracture, muscle strain, etc.),
• Pain in clinical tests (Hawkins and Neer),
• Those who did not attend training regularly.

This cross-sectional study included volunteer young swimmers with at least 3 years of experience in a professional swimming club and healthy non-athletes participants. The swimmer training program includes swimming training 6 days a week (10 hours in total), and 3 land training (3 hours in total) including a general strengthening program (strength of the posterior shoulder musculature, core, squats, pull-ups, etc.) and stretching the anterior shoulder musculature.