The Effect of Bag Carrying Style on Gait Parameters in Healthy Adults
NCT ID: NCT06992518
Last Updated: 2025-05-28
Study Results
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Basic Information
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COMPLETED
15 participants
OBSERVATIONAL
2023-10-01
2024-09-01
Brief Summary
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Detailed Description
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Fifteen volunteers aged 18 to 30 years who met predefined inclusion criteria were enrolled. Baseline posture was evaluated using the New York Posture Analysis (NYPA), and lower extremity muscle strength was assessed with a handheld myometer to ensure a consistent starting profile across participants. These values were recorded for characterization purposes only and were not analyzed in association with gait outcomes.
Each participant completed walking trials under four different conditions: walking without a bag, with a backpack, with a shoulder bag, and with a handbag. The order of these conditions was randomized for each participant. For each loaded condition, bags were adjusted to carry 15% of the individual's body weight. Participants walked barefoot at a self-selected pace on a 10-meter walkway while gait data were collected using a 3D motion analysis system (Vicon) integrated with force plates. Reflective markers were placed on anatomical reference points on the lower extremities.
Spatial-temporal, kinematic, and kinetic gait parameters were recorded in each condition, including stride length, cadence, joint angles, and joint power. Rest periods of at least three minutes were provided between walking conditions to reduce fatigue. All measurements were performed during a single session.
This study used a prospective crossover design in which each participant was observed under all four conditions. No therapeutic or clinical interventions were applied. The goal was to observe within-subject variability in gait characteristics associated with temporary exposure to different bag-carrying styles under standardized laboratory conditions.
Conditions
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Study Design
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CASE_CROSSOVER
PROSPECTIVE
Eligibility Criteria
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Inclusion Criteria
* score above 45 on the New York Posture Analysis (NYPA)
* lower extremity muscle strength values measured with myometer greater than 24,
* No strenuous physical activity 48 hours before
* Being cooperative with the measurements and tests, and volunteering to participate in the study
Exclusion Criteria
* Having visual problems,
* Having a body mass index of 30 kg/m² or more,
* Having pain complaints due to a history of trauma in the last 1 month,
* Having a leg length difference of more than 0.5 cm
18 Years
30 Years
ALL
Yes
Sponsors
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Istanbul University - Cerrahpasa
OTHER
Responsible Party
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Gökçen Erol
MSc, PT
Principal Investigators
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Yıldız ANALAY AKBABA, Assoc. Prof, PT
Role: STUDY_DIRECTOR
Istanbul University-Cerrahpasa,Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Division of Physiotherapy and Rehabilitation
Locations
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Istanbul University - Cerrahpasa, Faculty of Health Sciences, Büyükçekmece Campus, Alkent 2000 Mah. Yiğittürk Street No:5/9/1, Büyükçekmece/Istanbul, Turkey
Istanbul, büyükçekmece, Turkey (Türkiye)
Countries
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References
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Ozgul B, Akalan NE, Kuchimov S, Uygur F, Temelli Y, Polat MG. Effects of unilateral backpack carriage on biomechanics of gait in adolescents: a kinematic analysis. Acta Orthop Traumatol Turc. 2012;46(4):269-74. doi: 10.3944/aott.2012.2678.
Cottalorda J, Rahmani A, Diop M, Gautheron V, Ebermeyer E, Belli A. Influence of school bag carrying on gait kinetics. J Pediatr Orthop B. 2003 Nov;12(6):357-64. doi: 10.1097/01.bpb.0000078270.58527.1f.
Connolly BH, Cook B, Hunter S, Laughter M, Mills A, Nordtvedt N, Bush A. Effects of backpack carriage on gait parameters in children. Pediatr Phys Ther. 2008 Winter;20(4):347-55. doi: 10.1097/PEP.0b013e31818a0f8f.
Alamoudi, M., Travascio, F., Onar-Thomas, A., Eltoukhy, M., & Asfour, S. (2018). The effects of different carrying methods on locomotion stability, gait spatio-temporal parameters and spinal stresses. International Journal of Industrial Ergonomics, 67, 81-88.
Ahn, J. (2006). The effects of asymmetric load of shoulder bag on trunk and pelvis movement patterns of normal adult during gait. The Graduate School of Health and Environment Yonsei University, Master's thesis.
Abaraogu UO, Ugwa WO, Onwuka E, Orji E. Effect of single and double backpack strap loading on gait and perceived exertion of young adults. J Back Musculoskelet Rehabil. 2016;29(1):109-15. doi: 10.3233/BMR-150605.
Other Identifiers
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GErol2
Identifier Type: -
Identifier Source: org_study_id
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