Muscle Activity of the Gastrocnemius and Soleus Muscles During a Specific Contraction Task Assessed by Surface Electromyography
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 120
- 试验地点
- 1
- 主要终点
- Muscle activation, microvolts (μV)
研究概览
简要总结
This cross-sectional, comparative study aims to evaluate and compare the surface electromyographic (sEMG) activity of the gastrocnemius (medial and lateral) and soleus muscles during static and dynamic contraction tasks. Participants will perform three tests-resting state, isometric, concentric, and eccentric contraction, and dynamic gait-with bilateral measurements. A subgroup analysis will examine muscle activity variations based on foot posture, using the Foot Posture Index (FPI). The study uses the validated mDurance® sEMG system to obtain objective data under controlled lab conditions. The findings will enhance understanding of the functional role of each muscle and could inform rehabilitation and injury prevention strategies.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age between 18 and 30 years.
- •No history of severe musculoskeletal disorders in the lower limbs.
- •No recent surgery or injury in the last 6 months.
- •No dermatological conditions affecting electrode placement.
- •Not allergic to adhesives.
- •Ability to perform the task without limitation.
- •. No high-intensity exercise in the 12 hours before testing
- •Ability to provide informed consent and complete the assessment
排除标准
- •Reduced lower limb mobility.
- •Neuromuscular or skeletal conditions affecting the calf region.
- •Intense physical activity 12 hours before testing.
- •Lack of informed consent.
结局指标
主要结局
Muscle activation, microvolts (μV)
时间窗: Baseline or Day 1. During a single assessment session (~30 minutes).
Muscle activation (μV) as recorded by mDurance® sEMG system during the contraction protocol (soleus vs. gastrocnemius).
次要结局
- RMS (root mean square) and peak EMG signal values (μV)(Baseline or Day 1. During the same assessment session)
- Differences in muscle activity by contraction type (μV)(Baseline or Day 1. Immediately after the execution of each contraction type during the session)
- Activity differences by foot posture (pronated, neutral, supinated)(Baseline or Day 1. Immediately after foot posture assessment during the same session)
- Correlation with physical activity level Physical Activity Questionnaire (IPAQ-short version)(Baseline or Day 1. Collected at baseline before EMG assessment)
研究者
Alejandro Caña Pino
Investigator
University of Extremadura