Electrical Stimulation of the Muscle Pumps of the Leg
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 12
- 主要终点
- Venous Haemodynamic Measurements (Volume Flow Rate)
研究概览
简要总结
The most efficient way of electrically stimulating the calf muscles has not been identified. The investigators aim to investigate this using a matrix of electrical parameters, and measuring the outcome with vascular ultrasound of the leg.
详细描述
Blood is aided on its journey to the heart by the action of the muscles of the legs. Muscle contraction squeezes the deep veins of the leg and pushes blood upwards, back towards the heart. In immobilised patients, or those with blood vessel problems, the pumping process can be helped by machines that either squeeze or shock the muscles of the calf (e.g. intermittent pneumatic compression, electrical stimulating devices). Many are licensed for medical use, and some are common place in hospitals and outpatient departments.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18 years or older
- •Current good health
排除标准
- •History of cardiovascular disease
- •Ankle Brachial Pressure Index <0.9
- •Venous reflux>0.5s
- •Pregnancy
结局指标
主要结局
Venous Haemodynamic Measurements (Volume Flow Rate)
时间窗: Baseline compared to that after 10-mins stimulation (2-mins to take measurements)
Measurement by ultrasound, in right femoral vein. Flow rate (ml/min).
Venous Haemodynamic Measurements (Time Averaged Maximum Velocity)
时间窗: Baseline compared to that after 10-mins stimulation (2-mins to take measurements)
Measurement by ultrasound, in right femoral vein. Time averaged maximum velocity (cm/s).
次要结局
- Pain Grading on Stimulation(During stimulation (10-mins each muscle))