MULTİDİMENSİONAL ASSESSMENT OF MUSCLE FATİGUE İN SOCCER PLAYERS (MAMF)
MULTIDIMENSIONAL ASSESSMENT OF MUSCLE FATIGUE USING ACCELEROMETER, ELECTROMYOGRAPHY AND MUSCLE THICKNESS DATA
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Muscle fatigue is commonly assessed using surface electromyography (sEMG), particularly through frequency-domain parameters such as median frequency. However, fatigue-related changes are not limited to electrical activity and may also involve alterations in muscle mechanical behavior and morphological characteristics. Accelerometer-derived signals provide information regarding muscle vibrations and mechanical oscillations, while ultrasonographic measurements of muscle thickness provide information about muscle morphology and force-generating capacity.
The purpose of this study was to examine the relationships among muscle thickness, sEMG median frequency, accelerometer-derived mechanical vibration parameters, and isometric force variables during maximal voluntary isometric contractions performed at different knee flexion angles. Healthy male soccer players participated in a laboratory-based assessment protocol including ultrasonography, synchronized sEMG recordings, triaxial accelerometry, and isokinetic dynamometry.
Muscle thickness of the vastus lateralis obliquus (VLO), vastus medialis obliquus (VMO), and rectus femoris obliquus (RFO) muscles was measured using ultrasonography. Participants subsequently performed maximal voluntary isometric contractions at 90°, 60°, and 30° knee flexion angles. Surface electromyography, accelerometer signals, and force-related variables were recorded simultaneously. Median frequency values, acceleration-based root mean square (RMS) parameters, peak torque, mean torque, and time-to-peak torque variables were analyzed.
The study aimed to provide a multidimensional framework for muscle fatigue assessment by integrating morphological, electrical, and mechanical indicators and to explore their associations in healthy athletic populations.
Tipo di studio
Iscrizione (Effettivo)
Contatti e Sedi
Luoghi di studio
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Merkez
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Ordu, Merkez, Turchia (Türkiye), 52100
- Ordu University Faculty of Sports Sciences
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- 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
Exclusion Criteria:
- 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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
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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°).
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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.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Surface Electromyography (sEMG) Median Frequency
Lasso di tempo: Day 1
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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.
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Day 1
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Muscle Thickness
Lasso di tempo: Day 1
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Ultrasonographic muscle thickness measurements of the VLO, VMO, and RFO muscles (mm).
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Day 1
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Accelerometer-Derived Mechanical Vibration Parameters
Lasso di tempo: Day 1
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Root mean square (RMS) acceleration values obtained from thigh and shank triaxial accelerometers during isometric contractions.
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Day 1
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Isometric Strength Parameters
Lasso di tempo: Day 1
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Peak torque, mean torque, and time-to-peak torque measured using an isokinetic dynamometer during maximal voluntary isometric contractions.
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Day 1
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Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Tuğçe Namazcı, PhD, Giresun Üniversitesi
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Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
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Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
- TN-2024-127
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