Heel-lift insole effects on lower limb and lower back motion

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational project will recruit healthy physiotherapy students at Misr University to compare muscle activity and joint angles with and without a standardized heel lift insole. Participants who meet predefined height, BMI, foot-length, and functional criteria will complete a demographic form and undergo EMG recording from bilateral erector spinae, rectus femoris, and medial/lateral gastrocnemius during standardized standing trials in flat shoes and with a heel lift. Photographs from anterior and lateral views will be analyzed with Kinovea to measure Q-angle (knee valgus) and lumbosacral angle, with three trials per condition and mean values used for analysis. Individuals with out-of-range BMI, prior lower-limb injury or surgery, neuromuscular or sensory disorders, pregnancy, or prior heel-lift use will be excluded to reduce confounding.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adult non-athletic individuals with age range between (18: 25) years old (Joshi et al., 2024).
* Height between (160 - 180 cm).
* Body mass index between (18.5:24.99) Kg/ m² (Joshi et al., 2024).
* Foot length between (23,3 - 28.0 cm).
* Never used heel lift insole.
* Participants must have a normal and pain-free range of motion in the lower limbs and spine (Hapsari et al., 2016).
* Participants must demonstrate stable balance and coordination in weight-bearing activities (Hapsari et al., 2016).

Exclusion Criteria:

* Traumatic conditions of the lower limb (Joshi et al., 2024).
* Pelvis and lower limb musculoskeletal disorders (Joshi et al., 2024).
* Previous orthopedic disorders or neurological deficit of the lower limb (Joshi et al., 2024).
* Previous surgery of the lower limbs (Lindenberg et al., 2019).
* Any sensory problems.
* Neuromuscular diseases such as multiple sclerosis, intervertebral disc disorders…etc (Joshi et al., 2024).
* Pregnancy.
* Cancer Patients.
* Immunodeficiency diseases.
* Psychological disorders (depression - anxiety).
* Chronic diseases as (diabetes - hypertension).
* Participants with lower limbs deformity (Joshi et al., 2024).
* Participants with specific lower limb muscles weakness.
* Low back pain in the past 30 days (Colonna et al., 2024).

Where it's running

• Misr University for science and technology, Physical Therapy College, EMG and NCV Lab
  Giza, Egypt Recruiting
• Misr University for science and technology
  Giza, Giza Governorate, Egypt Not yet recruiting

Study contacts

• Study coordinator: Abdelrahman Salah Sawan, Bachelor's degree
• Email: abdelrahman.sawan@must.edu.eg
• Phone: +201144047770

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.