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Hamstring Tightness and Lumbar Lordosis Angel Across Functional Sitting Posture.

NCT07682142 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 110

Last updated 2026-07-06

No results posted yet for this study

Summary

The goal of this observational study is to learn about the relationship between hamstring tightness and the lumbar lordosis angle in sedentary adults across different sitting postures. The main question it aims to answer is:

Is hamstring tightness related to the lumbar lordosis angle across three functional sitting postures (upright, slumped, and forward-leaning)? It also asks whether hamstring tightness differs between men and women, whether it differs between the dominant and non-dominant leg, and whether the lumbar lordosis angle differs between men and women across the three postures.

Participants will have their hamstring tightness measured with the Active Knee Extension test and their lumbar lordosis angle measured with a bubble inclinometer while sitting in each of the three postures.

Conditions

  • Hamstring Tightness
  • Lumbar Lordosis
  • Sedentary Behavior
  • Posture Sitting Position

Interventions

OTHER

Hamstring tightness and lumbar lordosis assessment

Hamstring tightness measured bilaterally with the Active Knee Extension test (digital goniometer) and lumbar lordosis angle (T12-S2) measured with a bubble inclinometer across three functional sitting postures. No therapeutic intervention is administered; these are observational measurements only.

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-08-01
Primary Completion
2026-10-01
Completion
2026-12-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07682142 on ClinicalTrials.gov