MULTİDİMENSİONAL ASSESSMENT OF MUSCLE FATİGUE İN SOCCER PLAYERS (MAMF)
MULTIDIMENSIONAL ASSESSMENT OF MUSCLE FATIGUE USING ACCELEROMETER, ELECTROMYOGRAPHY AND MUSCLE THICKNESS DATA
Descripción general del estudio
Estado
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Intervención / Tratamiento
Descripción detallada
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 de estudio
Inscripción (Actual)
Contactos y Ubicaciones
Ubicaciones de estudio
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Merkez
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Ordu, Merkez, Turquía (Türkiye), 52100
- Ordu University Faculty of Sports Sciences
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Método de muestreo
Población de estudio
Descripción
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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
Intervención / Tratamiento |
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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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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Surface Electromyography (sEMG) Median Frequency
Periodo de tiempo: 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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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Muscle Thickness
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 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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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Tuğçe Namazcı, PhD, Giresun Üniversitesi
Publicaciones y enlaces útiles
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Finalización primaria (Actual)
Finalización del estudio (Actual)
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Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
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Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- TN-2024-127
Plan de datos de participantes individuales (IPD)
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Descripción del plan IPD
Información sobre medicamentos y dispositivos, documentos del estudio
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