Thesis (M.Sc.) - Cairo University - Faculty of Physical Therapy - Department of Physical Therapy Gynecology and Obstetrics

Bag carriage is recognized as a primary occupational factor leading to slipand fall injuries. So, assessing balance during such task is critical in assessing the risk of injury. This study was conducted to investigate the effect of different bag carriage styles on the center of pressure (COP). Thirty adolescent females aging from 14 to 19 years participated in this study. They were assigned in one group. Each female was assessed five times while walking; four times with backpack, front pack, messenger bag, one shoulder strap bag carrying 10% of her body weight, and one time without bag. Medilogic® foot pressure measuring insole systemwas used to record COP sway and COP velocity in antero-posterior (A-P) and medio-lateral (M-L) directions for both feet during walking. Results revealed that there was no significant difference in the mean values of A-P COP sway, M-L COP sway, A-P COP velocity and M-L COP velocity for both feet among different carriage styles compared to reference (without bag) (P>0.05). It can be concluded that backpack, front pack, messenger bag and one shoulder strap baghad the same potential effect on COP sway and COP velocity in A-P and M-L directions for both feet in adolescent females during walking

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