The Effect of Bag Carrying Style on Gait Parameters in Healthy Adults

NCT06992518 | Completed

• 1 other identifier: GErol2
• Study Type: observational
• Target: 15
• Locations: 1 country
• Sites: 1

Brief Summary

This observational crossover study aims to evaluate how different bag carrying styles-backpack, shoulder bag, and handbag-may affect gait parameters in healthy adults. Fifteen participants will walk under four conditions (no bag and each of the three bag types with a load of 15% of body weight), with the order randomized. Gait will be assessed using a 3D motion capture system with integrated force plates. Posture and lower extremity muscle strength will also be evaluated for baseline characterization.

Conditions

Gait Analysis; 3D Gait Analysis

Keywords

Posture; 3D Gait Analysis; Bag Carrying Styles; Healthy Adults

Outcome Measures

Primary Outcomes (3)

• Kinetic Gait Parameters

  Peak joint power values will be assessed using the Vicon 3D gait analysis system with integrated force plates. The following parameters will be recorded bilaterally under four bag-carrying conditions (no bag, backpack, shoulder bag, handbag): Maximum ankle power, maximum knee power, maximum hip power Unit of Measure: Watts per kilogram (W/kg)

  Baseline

• Kinematic Gait Parameters

  Joint angles will be calculated using 3D motion capture data for both right and left lower limbs during barefoot walking under four bag-carrying conditions (no bag, backpack, shoulder bag, handbag). The following maximum joint angles will be measured bilaterally: Ankle dorsiflexion, ankle plantarflexion, knee flexion, knee extension, hip flexion, hip extension, hip abduction, hip adduction, anterior pelvic tilt Unit of Measure: Degrees (°)

  Baseline

• Spatiotemporal Gait Parameters

  Spatiotemporal gait parameters will be measured using a 3D motion analysis system equipped with reflective markers and force platforms. The following variables will be assessed under four bag-carrying conditions (no bag, backpack, shoulder bag, handbag): Step length (meters), cadence (steps per minute), gait speed (meters per second), single support time (seconds), double support time (seconds) Each parameter will be recorded bilaterally where applicable. Values will be averaged from two selected trials per condition. Unit of Measure: Multiple (m, steps/min, s)

  Baseline

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

The study population consisted of 15 healthy volunteers who were selected using a simple random sampling method from among those who volunteered at Acıbadem Altunizade Hospital.

You may qualify if:

• years of age,
• 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

You may not qualify if:

• Having a diagnosed orthopedic or neurological problem,
• 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

Sponsors & Collaborators

• Istanbul University - Cerrahpasa: lead

Study Sites (1)

Istanbul University - Cerrahpasa, Faculty of Health Sciences, Büyükçekmece Campus, Alkent 2000 Mah. Yiğittürk Street No:5/9/1, Büyükçekmece/Istanbul, Turkey

Istanbul, büyükçekmece, 34500, Turkey (Türkiye)

Location

Related Publications (6)

• 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.

  PMID: 22951758 BACKGROUND

• 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.

  PMID: 14530691 BACKGROUND

• 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.

  PMID: 19011525 BACKGROUND

• 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.

  BACKGROUND

• 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.

  BACKGROUND

• 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.

  PMID: 26406186 BACKGROUND

Study Officials

• Yıldız ANALAY AKBABA, Assoc. Prof, PT

  Istanbul University-Cerrahpasa,Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Division of Physiotherapy and Rehabilitation

  STUDY DIRECTOR

Study Design

• Study Type: observational
• Observational Model: CASE CROSSOVER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: MSc, PT

Study Record Dates

• First Submitted: May 9, 2025
• First Posted: May 28, 2025
• Study Start: October 1, 2023
• Primary Completion: August 1, 2024
• Study Completion: September 1, 2024
• Last Updated: May 28, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)