Evaluating knee brace effects on thigh muscle activity during leg raises

Impact of Knee Extension Brace on Quadriceps Electromyography Activity During Active Straight Leg Rise

Observational Józef Piłsudski University of Physical Education · NCT06821477

This study tests how wearing a knee brace affects the thigh muscle activity during leg raises in healthy young adults.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years to 35 Years
SexAll
SponsorJózef Piłsudski University of Physical Education Academic / other
Locations1 site (Warsaw)
Trial IDNCT06821477 on ClinicalTrials.gov

What this trial studies

This study aims to assess the activity of the quadriceps muscle during active straight leg raises (ASLR) with and without a knee brace in healthy individuals aged 18 to 35. Participants will undergo a series of non-invasive surface EMG measurements to evaluate muscle activity in different conditions. The study will measure maximum voluntary contraction (MVC) and muscle activity during leg raises in both braced and unbraced states. The goal is to understand how a knee brace influences muscle performance during specific exercises.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy individuals aged 18 to 35 with no history of knee or hip surgery.

Not a fit: Patients with a history of knee or hip surgery, ligament damage, or recent muscle injuries may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into optimizing rehabilitation protocols for knee injuries by understanding muscle dynamics with knee braces.

How similar studies have performed: While similar studies have explored muscle activity with braces, this specific approach focusing on EMG during ASLR is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age between 18-35 years
* no contraindications to exercise
* ability to perform the required commands without pain or discomfort
* full range of motion of the knee joint.

Exclusion Criteria:

* those with a history of knee and/or hip surgery
* damage to ligamentous structures of the knee joint in the past treated conservatively or meniscus treated conservatively.
* muscle and tendon injury of the knee joint area in the past 3 months.

Where this trial is running

Warsaw

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions EMGExercise Response
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.