International Journal on Science and Technology

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Effects of eccentric scapular strengthening on scapular stability among regular gym-goers with scapular dyskinesis

Author(s) GIRIPRASATH T, ARVIND M
Country India
Abstract BACKGROUND: Scapular dyskinesia involves visible changes in the scapula's position and movement due to altered activation of stabilizing muscles, leading to instability and shoulder injuries. Important scapular stabilizers include the upper and lower trapezius and serratus anterior. Dyskinesia results from weakness in the lower trapezius and serratus anterior and hypertrophy in the lower trapezius, causing muscle function reduction and shoulder injuries like impingement and rotator cuff tears.Eccentric exercises, which emphasize muscle lengthening, effectively target scapular stabilizers, improving muscle strength and tendon stiffness. This training is more effective than concentric exercises and enhances the muscles' ability to transmit force. However, current gym protocols often neglect stabilizing muscles such as the lower trapezius, serratus anterior, rhomboids, and shoulder rotators, focusing instead on major muscles like the deltoid, pectoralis major, and upper trapezius. This imbalance in training leads to scapular instability. OBJECTIVE: To assess the efficacy of eccentric scapular muscle strengthening in stabilizing the scapula. METHODS: It is a Quasi-experimental study of the pre and post type with a sample of 34 gym-goers with scapular dyskinesis . Subjects with inconsistent to the gym are excluded. Samples are assesed with LSST for inclusion. They were underwent eccentric trianing for 8 weeks.The study setting was SRM gym ,Nitro gym, BB fittness, Royal gym. RESULTS: The result shows a mean difference of 0.323,0.280 and 0.311 at the position of 0 degree, 45 degree and 90 degree with a significance of p<0.05. CONCLUSION: Eccentric scapular strengthening for 8 weeks had a significant effects on scapular stability in regular gym-goers with scapular dyskinesis
Keywords Gym-goers, eccentric training, scapular dyskinesis, Lateral scapular slide test.
Field Medical / Pharmacy
Published In Volume 16, Issue 2, April-June 2025
Published On 2025-05-18
DOI https://doi.org/10.71097/IJSAT.v16.i2.5288
Short DOI https://doi.org/g9mn9p
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