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Impact of Knee Extension Brace on Quadriceps EMG During ASLR

NCT06821477 · Status: ACTIVE_NOT_RECRUITING · Type: OBSERVATIONAL · Enrollment: 20

Last updated 2025-07-18

No results posted yet for this study

Summary

The main objective of this study is to evaluate quadriceps thigh muscle activity during active straight leg raise (ASLR) with a knee brace.

An additional aim of the study is to evaluate quadriceps activity during straight leg raise with a knee brace in a variable command and manner of task performance. The study will be conducted on a group of healthy individuals aged 18 - 35 years. Height and weight were measured using a scale and centimetre tape. Then, according to the study protocol, specific measurements will be taken of the rectus femoris, medial vastus and lateral vastus muscles using surface EMG of a non-invasive nature.

Study participants will undergo the following measurements:

1. Measurement of the MVIC (maximum voluntary isometric contraction) of the quadriceps of the thigh, in a sitting position with the lower leg flexed to 90 degrees and in knee extended (0 degrees).
2. Measurement of muscle activity during elevation of the straightened lower limb in a supine position without an orthosis.
3. Measurement of muscle activity during straight leg raise in supine position with knee brace (default and different commends).

Conditions

  • EMG
  • Exercise Response

Interventions

OTHER

Superficial EMG

Superfiscial EMG during ASLR without knee brace follow by EMG during ASLR with knee brace under certain commands

Sponsors & Collaborators

  • Józef Piłsudski University of Physical Education

    lead OTHER

Eligibility

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

Timeline & Regulatory

Start
2025-02-03
Primary Completion
2025-10-31
Completion
2025-12-31

Countries

  • Poland

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 NCT06821477 on ClinicalTrials.gov