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MULTİDİMENSİONAL ASSESSMENT OF MUSCLE FATİGUE İN SOCCER PLAYERS (MAMF)
MULTIDIMENSIONAL ASSESSMENT OF MUSCLE FATIGUE USING ACCELEROMETER, ELECTROMYOGRAPHY AND MUSCLE THICKNESS DATA
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
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.
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
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Merkez
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Ordu, Merkez, Turkije (Türkiye), 52100
- Ordu University Faculty of Sports Sciences
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
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
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
Interventie / Behandeling |
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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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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Surface Electromyography (sEMG) Median Frequency
Tijdsspanne: 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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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Muscle Thickness
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 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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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Tuğçe Namazcı, PhD, Giresun Üniversitesi
Publicaties en nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
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Eerst ingediend dat voldeed aan de QC-criteria
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Meer informatie
Termen gerelateerd aan deze studie
Andere studie-ID-nummers
- TN-2024-127
Plan Individuele Deelnemersgegevens (IPD)
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