Effect of backpack shoulder straps length on cervical posture and upper trapezius pressure pain threshold
| Autor: | Osama Ragaa Abdelraouf, Wael S Shendy, Hamada Ahmed Hamada, Hoda M. Zakaria, Ali Osman Selim |
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| Rok vydání: | 2016 |
| Předmět: |
musculoskeletal diseases
Upper trapezius medicine.medical_specialty Pressure pain business.industry Physical Therapy Sports Therapy and Rehabilitation Backpack 030229 sport sciences Cervical posture Upper trapezius muscle Shoulder straps 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Threshold of pain medicine Physical therapy Original Article Treadmill business 030217 neurology & neurosurgery |
| Zdroj: | Journal of Physical Therapy Science |
| ISSN: | 2187-5626 0915-5287 |
| DOI: | 10.1589/jpts.28.2437 |
| Popis: | [Purpose] This study was performed to investigate the effect of the length of backpack shoulder straps on upper trapezius muscle pain threshold and craniovertebral angle. [Subjects and Methods] There were 25 participants, with ages from 15 to 23 years old. Upper trapezius pain threshold and craniovertebral angle were measured for all subjects without the backpack then re-measured after walking on a treadmill for 15 min under 2 conditions: 1) wearing a backpack with short straps; and 2) wearing a backpack with long straps. [Results] there was a significant reduction in upper trapezius pain threshold and craniovertebral angle while carrying a backpack with long shoulder straps, compared to use of a backpack with short shoulder straps or no backpack. [Conclusion] A backpack with short straps is less harmful than a backpack with long straps. This result should be considered in ergonomic design of backpacks to reduce the incidence of various physiological and biomechanical disorders. |
| Databáze: | OpenAIRE |
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