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One-shoulder backpack carry alters foot contact in healthy teens

NCT ID NCT07161349

Knowledge-focused Sponsor: Cairo University Source: ClinicalTrials.gov ↗

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Not yet recruiting
Registered, but not yet taking participants.
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Ongoing
Running, but no longer taking on new participants.
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Stopped early
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Cancelled
Cancelled before anyone took part.

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Approved
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When the status isn't known

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First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This observational study examined how different ways of carrying a school backpack affect pressure on the soles of the feet in 92 healthy adolescents aged 12–18. Participants stood and walked on a pressure-sensitive mat under four conditions: no backpack, backpack on both shoulders, on the right shoulder only, and on the left shoulder only. The study found that carrying a backpack on one shoulder increased the foot contact area but did not significantly change average or maximum pressure, suggesting the body compensates well in healthy teens.

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Study facts

What this study's own registry entry says, in plain language.

Participants

92 people

The number who actually took part.

Started

Jan 2022

Finished

Sep 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

This study will be conducted on ninety-two healthy adolescents from both sexes to determine the effect of different backpack carriage styles on plantar pressure distribution in adolescents. They will be recruited from public and private schools in Mansoura city.

Ages

12 to 18 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * • Their age will range from 12 to 18 years. * Their body mass index (BMI) is within normal range according to BMI for age percentile score (WHO, 2007). * All adolescents will be free from postural deviation, the trunk rotation in all students is within a normal degree determined by scoliometer (Bunnel, 1993). Exclusion Criteria: * Visual, auditory, or perceptual deficits. * Deformities at any joint of the lower limbs and spine. * Surgical intervention in the foot. * Deep sensory loss. * Musculoskeletal disorders.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy participants

Contacts and locations

Locations

  • Orthomedics

    Al Mansurah, Egypt

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