Influence of reducing anterior pelvic tilt on shoulder posture and the electromyographic activity of scapular upward rotators
| Autor: | Juliana M. Ocarino, Bárbara Murta, Renan Alves Resende, Thiago R. T. Santos, Priscila Albuquerque de Araújo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Upper trapezius Pelvic tilt Shoulder medicine.medical_specialty medicine.medical_treatment Posture Physical Therapy Sports Therapy and Rehabilitation Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation medicine Humans Orthopedics and Sports Medicine Exercise Reduction (orthopedic surgery) Pelvis Original Research 030222 orthopedics Arm elevation Electromyography business.industry Rehabilitation Biomechanics Repeated measures design 030229 sport sciences Trunk Scapula medicine.anatomical_structure Superficial Back Muscles business |
| Zdroj: | Brazilian Journal of Physical Therapy. 24:135-143 |
| ISSN: | 1413-3555 |
| DOI: | 10.1016/j.bjpt.2019.02.002 |
| Popis: | Background Modifications of posture in a segment may influence the posture of adjacent and nonadjacent segments and muscular activity. The spine–shoulder and spine–pelvis relationships suggest that the pelvis may influence shoulder posture. Objective To investigate the effect of the active reduction of the anterior pelvic tilt on shoulder and trunk posture during static standing posture and on the electromyographic activity of the scapular upward rotators during elevation and lowering of the arm. Methods Thirty-one young adults were assessed in a relaxed standing position and a standing position with 30% active reduction of the anterior pelvic tilt. The pelvic tilt, trunk posture, and forward shoulder posture during the static standing posture and the electromyographic activity during elevation and lowering of the arm were assessed. Results Paired t-tests indicated that the active reduction of the anterior pelvic tilt reduced the trunk extension (MD = 1.09; 95%CI = −2.79 to −1.03). There were no effects on the forward shoulder posture (MD = 0.09; 95%CI = −0.92 to 1.09). Repeated measures of analyses of variance indicated an increase in lower trapezius electromyographic activity (MD = 3.6; 95%CI = 1.28 to 5.92). There was a greater reduction in upper trapezius activity after pelvic tilt reduction during arm elevation (MD = 1.52%; 95%CI = −2.79 to −0.25) compared to that during the lowering phase. There were no effects of pelvic tilt reduction on the electromyographic activity of the serratus anterior (MD = 3.26; 95%CI = −3.36 to 9.87). Conclusion The influence of pelvic posture on the trunk posture and lower trapezius activation should be considered when assessing or planning exercise for individuals with shoulder or trunk conditions. |
| Databáze: | OpenAIRE |
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