MULTİDİMENSİONAL ASSESSMENT OF MUSCLE FATİGUE İN SOCCER PLAYERS

NCT07665008 | Completed

• 1 other identifier: TN-2024-127
• Study Type: observational
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Muscle fatigue is a multifactorial physiological phenomenon characterized by a reduction in the ability of a muscle to generate force during sustained or repetitive contractions. This cross-sectional observational study aimed to investigate the relationships among muscle thickness, surface electromyography (sEMG) median frequency, accelerometer-derived mechanical vibration parameters, and isometric force characteristics in healthy male soccer players. Thirty participants aged 18-30 years underwent ultrasonographic muscle thickness assessment, synchronized sEMG and accelerometer recordings, and isometric strength testing at different knee flexion angles (90°, 60°, and 30°). The study evaluated the interaction between morphological, electrical, and mechanical indicators of muscle fatigue to support the development of multidimensional fatigue monitoring approaches.

Conditions

Muscle Fatigue

Keywords

Muscle Fatigue; Surface Electromyography; Accelerometry; Muscle Thickness; Mechanomyography

Outcome Measures

Primary Outcomes (1)

• Surface Electromyography (sEMG) Median Frequency

  Median frequency (Hz) obtained from the vastus lateralis obliquus (VLO), vastus medialis obliquus (VMO), and rectus femoris obliquus (RFO) muscles during maximal voluntary isometric contractions performed at 30°, 60°, and 90° knee flexion angles.

  Day 1

Secondary Outcomes (3)

• Muscle Thickness

  Day 1

• Accelerometer-Derived Mechanical Vibration Parameters

  Day 1

• Isometric Strength Parameters

  Day 1

Study Arms (1)

Healthy Male Soccer Players

Healthy male soccer players aged 18-30 years who participated in a cross-sectional observational study. Participants underwent ultrasonographic muscle thickness assessment, surface electromyography (sEMG), accelerometer-based mechanical vibration measurements, and isometric strength testing during maximal voluntary isometric contractions performed at different knee flexion angles (30°, 60°, and 90°).

Device: Neuromuscular Assessment Devices

Interventions

Neuromuscular Assessment Devices DEVICE

Participants underwent non-invasive neuromuscular assessment procedures using surface electromyography (sEMG), triaxial accelerometers, ultrasonography, and an isokinetic dynamometer. Measurements were performed during maximal voluntary isometric contractions at 30°, 60°, and 90° knee flexion angles. The devices were used exclusively for data collection and assessment purposes. No therapeutic, pharmacological, behavioral, or rehabilitative intervention was administered.

Healthy Male Soccer Players

Eligibility Criteria

• Age: 18 Years - 30 Years
• Gender Eligibility Details: Only male participants were eligible for inclusion in this study. The study was designed to evaluate muscle fatigue, muscle thickness, electromyographic, and accelerometer-derived mechanical parameters in a homogeneous sample of healthy male soccer players aged 18 to 30 years.
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Healthy male soccer players aged 18 to 30 years who were actively participating in regular football training and competition. Participants were recruited from football teams and underwent assessments of muscle thickness, surface electromyography (sEMG), accelerometer-derived mechanical vibration parameters, and isometric strength during laboratory-based testing sessions. Only individuals meeting all eligibility criteria and providing informed consent were included in the study.

You may qualify if:

• Healthy male soccer players aged 18-30 years
• No lower extremity injury within the previous six months
• No condition limiting lower extremity exercise performance
• No caffeine or stimulant consumption on the testing day
• Non-smoker
• Provided written informed consent

You may not qualify if:

• Female athletes
• Serious injury to the dominant leg within the previous year
• Intense exercise within the previous 24 hours
• Use of pain relievers or muscle relaxants on the testing day
• Inability to complete testing procedures

Sponsors & Collaborators

• Giresun University: lead

Study Sites (1)

Ordu University Faculty of Sports Sciences

Ordu, Merkez, 52100, Turkey (Türkiye)

Location

Related Publications (1)

• Karthick PA, Venugopal G, Ramakrishnan S. Analysis of Muscle Fatigue Progression using Cyclostationary Property of Surface Electromyography Signals. J Med Syst. 2016 Jan;40(1):28. doi: 10.1007/s10916-015-0394-0. Epub 2015 Nov 7.

  PMID: 26547848 BACKGROUND

Related Links

• Published article related to muscle fatigue assessment using surface electromyography

Biospecimen

Retention: SAMPLES WITHOUT DNA

No biospecimens were collected or stored in this study.

Study Officials

• Tuğçe Namazcı, PhD

  Giresun Üniversitesi

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: research assistant

Study Record Dates

• First Submitted: June 12, 2026
• First Posted: June 24, 2026
• Study Start: November 1, 2024
• Primary Completion: February 20, 2025
• Study Completion: March 15, 2025
• Last Updated: June 24, 2026

Record last verified: 2026-06

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)