Muscular Activations During Eccentric Quadriceps Exercises

April 3, 2024 updated by: Elif AYGUN POLAT, T.C. ORDU ÜNİVERSİTESİ

Investigation of Muscular Activations During Eccentric Quadriceps Exercises

The aim of this study is to investigate muscular activations during various quadriceps exercises commonly used in clinical settings.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The quadriceps muscle is known to be crucial for the dynamic control of the lower extremity, and weakness in this muscle can lead to strategies that may result in injury. Therefore, acquiring optimal quadriceps muscle strength is essential not only for preventing lower extremity injuries but also for enabling individuals to fully return to activities after an injury.

Despite the existence of various eccentric quadriceps exercises in the literature, there is a lack of consensus on their comparative effectiveness. Hence, there is a requirement for research to explore the effectiveness of different eccentric quadriceps exercises. The objective of this study is to compare the muscular activation of the quadriceps muscle during four distinct eccentric quadriceps exercises using surface electromyography (sEMG) devices

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey
      • Ankara, Turkey
        • Gazi University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Being a licensed athlete in one's own field, Having been engaged in sports for at least 2 years

Exclusion Criteria:

Individuals with any musculoskeletal injury history in the lower extremities and trunk that could impede exercise within the last year, Individuals with systemic, neurological, and/or cognitive issues, Individuals experiencing pain in the lower extremities and trunk during exercises

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Other
female athletes
Diagnostic test: Eccentric quadriceps exercises
The activation of the vastus medialis, vastus lateralis, and rectus femoris muscles will be measured using surface electromyography (sEMG) during four distinct quadriceps eccentric exercises: Reverse Nordic, Pistol squat, Suspension-based Bulgarian split squat, and Bulgarian split squat. Participants will be instructed to perform three successful repetitions for each exercise. A 30-second break will be provided between each repetition, and there will be a minimum of 10 minutes of rest between each of the four exercises. Due to the belief that fatigue could impact exercise performance, the modified Borg scale will be used to ensure that fatigue does not occur before each exercise. Exercise recording will commence when scores reported using the modified Borg scale are 1 or lower.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Surface EMG Measurement
Time Frame: in an average of one hour
During data collection, the EMG Noraxon MiniDTS system (Noraxon Inc.) was used to measure the signals from the muscle. Additionally, the participants were video-recorded to prevent any potential mistakes that might have gone unnoticed during the activities.
in an average of one hour
Normalization of Surface EMG
Time Frame: in an average of one hour
To normalize the EMG data obtained during the exercises, MVIC will be performed for each muscle using an isokinetic dynamometer. Participants will be shown a video demonstrating the movement for MVIC, and before the test, they will be asked to warm up for 5 minutes on a treadmill at submaximal speed and then perform the movement. To ensure electromyography (EMG) normalization, participants will be asked to perform 3 repetitions, and the average of these three values will be taken.
in an average of one hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

T.C. ORDU ÜNİVERSİTESİ

Investigators

  • Principal Investigator: Elif AYGUN POLAT, PhD, T.C. ORDU ÜNİVERSİTESİ
  • Study Director: Nevin A. GUZEL, Prof, Gazi University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2024

Primary Completion (Actual)

February 1, 2024

Study Completion (Actual)

March 1, 2024

Study Registration Dates

First Submitted

December 1, 2023

First Submitted That Met QC Criteria

December 1, 2023

First Posted (Actual)

December 8, 2023

Study Record Updates

Last Update Posted (Actual)

April 4, 2024

Last Update Submitted That Met QC Criteria

April 3, 2024

Last Verified

April 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ODUSBFFTR-ELIFAYGUNPOLAT-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

There is not a plan to make IPD available.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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