Angle-Specific Upper and Lower Body Muscle Activation in Suspension Push-Ups: An Electromyographic Analysis Across Different Body Angles
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 26
- 试验地点
- 1
- 主要终点
- Muscle Activation (%MVIC) of Upper Body Muscles During Suspension and Stable Push-Ups at Different Angles
研究概览
简要总结
The study aims to compare differences in muscle activation during push-ups performed at five body angles using different suspension methods. The investigators will recruit 20 healthy men with resistance-training experience. Each participant will perform push-ups under three suspension conditions (no suspension, hands suspended, and feet suspended) at +30°, +15°, 0°, -15°, and -30°. For each angle, participants will complete five repetitions with 3-5 minutes of rest between angles; at least 48 hours will separate suspension conditions. Surface electromyography (EMG) will record activity of the pectoralis major, anterior deltoid, triceps brachii, upper trapezius, and serratus anterior. EMG amplitudes will be normalized to maximal voluntary isometric contraction (%MVIC). Data will be analyzed using a repeated-measures two-way ANOVA to test the effects of suspension type and angle on muscle activation. The a priori hypothesis is that feet-suspended push-ups will elicit greater activation than other conditions, and that lower body angles will be associated with higher activation levels.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Cross Sectional
入排标准
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Healthy male adults with ≥3 months of regular resistance-training experience.
- •Able to independently perform a standard push-up with proper form.
- •Willing to follow pre-session restrictions (e.g., avoid strenuous exercise within 24 h) and provide written informed consent.
排除标准
- •Physician-diagnosed cardiovascular disease, musculoskeletal disorders, chronic pulmonary disease, or arthritis.
- •Major surgery or severe injury within the past 12 months that affects physical activity.
- •Current pain, injury, or functional limitation of the upper or lower limbs or trunk that would interfere with push-up performance.
- •Any medical condition judged by the investigators to make participation unsafe.
结局指标
主要结局
Muscle Activation (%MVIC) of Upper Body Muscles During Suspension and Stable Push-Ups at Different Angles
时间窗: Baseline measurement during each exercise condition within 4 weeks of study start
Surface electromyography (EMG) will measure the root mean square (RMS) activity of the pectoralis major, anterior deltoid, triceps brachii, upper trapezius, and serratus anterior during push-ups performed under three suspension conditions (no suspension, hands suspended, feet suspended) at five body angles (+30°, +15°, 0°, -15°, -30°). RMS values will be normalized to maximal voluntary isometric contraction (%MVIC). Comparisons will be made using repeated-measures two-way ANOVA to determine the effects of suspension condition and angle on muscle activation.
次要结局
未报告次要终点
研究者
TSUNG-LIN CHIANG
Researcher
Chinese Culture University