MULTİDİMENSİONAL ASSESSMENT OF MUSCLE FATİGUE İN SOCCER PLAYERS (MAMF)
MULTIDIMENSIONAL ASSESSMENT OF MUSCLE FATIGUE USING ACCELEROMETER, ELECTROMYOGRAPHY AND MUSCLE THICKNESS DATA
연구 개요
상세 설명
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.
연구 유형
등록 (실제)
연락처 및 위치
연구 장소
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Merkez
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Ordu, Merkez, 터키 (Türkiye), 52100
- Ordu University Faculty of Sports Sciences
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참여기준
자격 기준
공부할 수 있는 나이
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샘플링 방법
연구 인구
설명
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
공부 계획
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디자인 세부사항
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
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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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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Surface Electromyography (sEMG) Median Frequency
기간: 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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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Muscle Thickness
기간: 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
기간: 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
기간: 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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공동 작업자 및 조사자
수사관
- 수석 연구원: Tuğçe Namazcı, PhD, Giresun Üniversitesi
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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개별 참가자 데이터(IPD) 계획
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IPD 계획 설명
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