Can Blood Flow Restriction Therapy Improve Strength for Shoulder External Rotators Better Than Exercise Alone
试验速览
- 阶段
- 不适用
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Muscular Strength as Measured by Dynamometry
研究概览
简要总结
The purpose of this study is to evaluate the ability of blood flow restriction therapy to improve strength of shoulder muscles during the sidelying external rotation (ER) exercise versus a control group who only performs the sidelying ER exercise.
详细描述
The purpose of this study is to determine if blood flow restriction (BFR) therapy is superior at increasing strength of the shoulder (supraspinatus, infraspinatus, posterior deltoid, and middle deltoid) and increasing tendon size of the supraspinatus and infraspinatus (as determined by diagnostic ultrasound) while performing the sidelying external rotation exercise compared to those who only perform the sideyling external rotation exercise without BFR.
Subjects will be randomized to one of two treatment groups: exercise with BFR or exercise alone. Recruitment will be a sample of convenience consisting of healthy adults (age range 22 to 45). Subjects will perform the sidelying external rotation exercise 2 times a week for an 8 week period.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
盲法说明
Outcomes assessors are blinded to group allocation.
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy adult (age 18 and older) with no current shoulder pathology
排除标准
- •Current neck, shoulder (or general upper extremity), and/or thoracic spine pathology
- •Shoulder surgery (or general upper extremity surgery) during the prior 6-month time period
- •Cervical/thoracic spine surgery during the prior 1 year
- •Subject having one or more contraindications for BFR training.
研究组 & 干预措施
Exercise with Blood Flow Restriction
Subjects will perform the sidelying external rotation exercise 2x a week for 8 weeks.
The BFR cuff will be applied to the upper arm. Arterial occlusion will be set to 50%.
Subjects will perform 4 sets (30, 15, 15, 15 reps) with a 30 sec rest period between reps. The occlusion will be maintained for the 8 min treatment period.
干预措施: Blood Flow Restriction (Device)
Exercise without Blood Flow Restriction
Subjects will perform the sidelying external rotation exercise 2x a week for 8 weeks.
This group will not have BFR applied. Subjects will perform 4 sets (30, 15, 15, 15 reps) with a 30 sec rest period between reps.
干预措施: Blood Flow Restriction (Device)
结局指标
主要结局
Muscular Strength as Measured by Dynamometry
时间窗: Change from Baseline to 8-weeks
Use a hand held dynamometer (MicroFet 2) to measure strength of the middle and posterior deltoid, the supraspinatus, and the infraspinatus
Tendon Size as Measured by Diagnostic Ultrasound
时间窗: Change from Baseline to 8-weeks
Ultrasound images are capture at pre- and post-test sessions
次要结局
未报告次要终点
研究者
Jason Brumitt
Assistant Professor of Physical Therapy
George Fox University