Effects of Additional Blood Flow Restriction and Sham Blood Flow Restriction in Eccentric Exercise on Muscle Strength, Dynamic Stability, and Reduce the Risk of ACL Injury
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- Dynamic stability I
研究概览
简要总结
The goal of this randomized clinical trial study is to compare low-load blood flow restriction (LL-BFRt), sham LL-BFRt, and high-load eccentric training (HL-Et) in healthy level 1 sportsman. The main questions it aims to answer are:
- Does LL-BFR improve muscle strength better than sham LL-BFRt and HL-Et?
- Does LL-BFR improve dynamic stability better than sham LL-BFRt and HL-Et?
- Does LL-BFR prevent ACL injury better than sham LL-BFRt and HL-Et?
Participants will be randomized into three intervention groups: LL-BFRt, sham LL-BFRt, and HL-Et. Participants will be asked to do:
- In LL-BFRt, participants will be asked to do LL eccentric training (including double leg squats, split squats, deadlifts, and monster walks) with a 30% of repetition maximum (RM) and 70% of arterial occlusion pressure (AOP).
- In sham LL-BFRt, participants will be asked to do LL eccentric training with a 30% of repetition maximum (RM) and 10% of arterial occlusion pressure (AOP).
- In HL-Et, participants will be asked to do LL eccentric training with a 70% of repetition maximum (RM).
Researchers will compare LL-BFRt, sham LL-BFRt, and HL-Et to see if muscle strength, dynamic stability, and ACL injury prevention improve after the interventions and follow-up.
详细描述
Participants will be asked to do five sets of ten repetitions of each eccentric training, one-minute rest interval for each eccentric training and two mins rest interval between each set.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 15 Years 至 35 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Being 15-35 years old
- •Perform sports level 1 (soccer, basket ball, futsal, combat martial art) at least twice per week.
- •Never had an history of ACL injury
- •Never had an history of sprain or strain grade III
- •Agree to participate until the end of this study period and sign the inform consent
排除标准
- •Having hypertension, blood circulation disease, anemia, obesity, diabetes, kidney failure, vena thromboembolic, cancer, and tumor.
- •Disabilities or disabled people.
结局指标
主要结局
Dynamic stability I
时间窗: 8 weeks
Investigators will measure the dynamic stability I using Y-balance test (units: centimeter).
Muscle strength
时间窗: 8 weeks
Investigators will measure the quadriceps muscle isometric strength using dynamometer (units: Newton or kilogram).
Dynamic stability II
时间窗: 8 weeks
Investigators will measure the dynamic stability II using single leg hop test (units: centimeter).
次要结局
未报告次要终点
研究者
I Putu Gde Surya Adhitya
Principal Investigator
Udayana University