Optimizing Plyometric Training for Functional Recovery Post-ACL Reconstruction
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 47
- 试验地点
- 2
- 主要终点
- Change in motor patterning via electromyography of quadriceps and hamstring muscles
研究概览
简要总结
While surgical anterior cruciate ligament reconstruction (ACLR) of the knee restores passive stability, studies are showing consistently poor long-term outcomes. Unusually high risks of early-onset osteoarthritis and re-injury, and low rate of return to sport following ACLR all seem to be related to a chronic tendency to land stiff-legged from a jump or hop, which itself may be due to fear of re-injury. Decreased knee bending for force absorption simultaneously decreases performance level and increases risk for injury and arthritic changes.
The purpose of the proposed study is to compare a current best-practice plyometric training program to one utilizing body weight support to increase repetition and improve performance in the initial phases. The investigators hypothesize that we will see larger improvements in absorptive capacity of the knee and better confidence in activity immediately following body weight support training, as well as improved retention of training effects after a two-month 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
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 12 Years 至 35 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •speak and understand English
- •age between 12-35 years
- •unilateral anterior cruciate ligament reconstruction between 6-48 months prior
- •activity level greater than or equal to level 5 on the Tegner Activity Scale
排除标准
- •Weight in excess of 300 pounds (136 kg)
- •contralateral/bilateral ACL reconstruction or an unreconstructed ACL injury
- •history of a posterior cruciate ligament injury
- •lower extremity of back injury or other condition (e.g. cerebral palsy) that has limited their normal activities of daily living within the last 6 months
研究组 & 干预措施
Standard Plyometric Training
Participants will undergo treatment 2 times a week for 8 weeks with plyometric exercises deemed to be consistent with best practice delivered at a standard dosage of sets and repetitions.
干预措施: Standard Plyometric Training (Procedure)
Plyometric Training with BWS
Participants will undergo treatment 2 times a week for 8 weeks with plyometric exercises deemed to be consistent with best practice with a treatment volume of sets and repetitions that exceeds standard practice. Higher number of practice trials will be completed with body weight support (BWS) to reduce load. Participants will start at 30 percent of body weight and will be slowly weaned away over time.
干预措施: Plyometric Training with BWS (Procedure)
结局指标
主要结局
Change in motor patterning via electromyography of quadriceps and hamstring muscles
时间窗: Baseline and after 8 weeks of training
Change in sagittal plane knee kinetics and kinematics
时间窗: Baseline and after 8 weeks of training
Change in psychological readiness for sports activities via survey scores
时间窗: baseline and after 8 weeks of training
次要结局
- Retention of Biomechanical Adaptions in Knee kinetics and kinematics(Change from end of 8 weeks of training to 2 month follow-up)
- Retention of adaptations in motor patterning via electromyography(Change from end of 8 weeks of training to 2 month follow-up)
- Retention of adaptations in Psychological Readiness for Sport via survey(Change from end of 8 weeks of training to 2 month follow-up)
研究者
Ryan Mizner
Associate Professor
University of Montana