Targeted Cryostimulation of Myofascial Trigger Points Attenuates Exercise-Induced Tremor in Adolescent Swimmers
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 34
- 试验地点
- 1
- 主要终点
- Exercise-Induced Physiological Tremor of the Lower Limbs
研究概览
简要总结
This study examines whether local cryostimulation of myofascial trigger points can reduce physiological tremor that occurs after intense physical exercise. Thirty-four adolescent competitive swimmers participate in a randomized crossover study comparing two conditions: local ice stimulation of trigger points and a control condition without intervention. Physiological tremor of the lower limbs is measured using accelerometry before and after a 30-second maximal tethered swimming effort. The study aims to determine whether targeted cryostimulation can attenuate exercise-induced neuromuscular tremor and improve post-exercise motor stability in young athletes.
详细描述
This study investigates whether targeted cryostimulation of myofascial trigger points (MTrPs) can attenuate exercise-induced physiological tremor in adolescent swimmers. The study uses a randomized reversed crossover design in which each participant completes two experimental conditions: local cryostimulation of identified trigger points and a control condition without intervention.
Thirty-four competitive adolescent swimmers participate in the study. Physiological tremor of both lower limbs is measured using triaxial accelerometry under standardized conditions before and after a maximal 30-second tethered swimming effort.
In the cryostimulation condition, cold packs are applied for 60 seconds to identified myofascial trigger points in the quadriceps and hamstring muscle groups. In the control condition, no cryostimulation is applied prior to exercise.
The primary outcome is the change in tremor power in the 2-5 Hz frequency band following exercise. Secondary outcomes include tremor power in the 9-14 Hz frequency band and tremor frequency parameters. Tremor signals are analyzed using frequency-domain analysis based on power spectral density calculations derived from accelerometer data.
The aim of the study is to determine whether localized cryostimulation of myofascial trigger points can modulate neuromuscular responses to fatigue and reduce the magnitude of exercise-induced tremor in adolescent athletes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 10 Years 至 16 Years（Child）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •- Competitive adolescent swimmers
- •Age between 10 and 16 years
- •Regular participation in swimming training (at least 3 training sessions per week)
- •No current musculoskeletal injury affecting the lower limbs
- •Ability to perform maximal swimming effort
- •Written informed consent from participants and their legal guardians
排除标准
- •- Current lower limb injury or pain
- •Neurological disorders affecting motor control
- •Contraindications to cold exposure or cryotherapy
- •Participation in other interventions that could affect neuromuscular performance
研究组 & 干预措施
Cryostimulation of Myofascial Trigger Points
Participants receive local cryostimulation of identified myofascial trigger points in the quadriceps and hamstring muscles. Cold packs are applied for 60 seconds to the trigger points before performing a 30-second maximal tethered swimming effort. Physiological tremor of the lower limbs is measured before and after exercise using accelerometry.
干预措施: Cryostimulation of Myofascial Trigger Points (Procedure)
Control Condition (No Cryostimulation)
Participants complete the same experimental protocol without cryostimulation. After baseline tremor assessment, participants perform a 30-second maximal tethered swimming effort. No cooling intervention is applied before exercise. Physiological tremor of the lower limbs is measured before and after exercise using accelerometry under the same conditions as in the experimental arm.
结局指标
主要结局
Exercise-Induced Physiological Tremor of the Lower Limbs
时间窗: Immediately before and immediately after the 30-second maximal tethered swimming effort during the experimental session.
Physiological tremor of the lower limbs measured using accelerometry before and after a 30-second maximal tethered swimming effort. Tremor amplitude is quantified from accelerometer signals to assess the effect of local cryostimulation of myofascial trigger points.
次要结局
未报告次要终点
研究者
Szymon Kuliś
Assistant Professor
Józef Piłsudski University of Physical Education