Effect of Corrective Exercises on Lower Extremity Biomechanics and Performance in Asymptomatic Dynamic Knee Valgus
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 33
- 试验地点
- 1
- 主要终点
- Frontal plan projection angle evaluation
研究概览
简要总结
Dynamic knee valgus (DKV) is a movement pattern of the lower limb potentially consisting of a combination of adduction and internal rotation of the femur, knee abduction, tibial anterior translation, tibial external rotation and ankle eversion. Average "normal" performance during a fall jump landing mission knee valgus angle should be in the range of 7-13 degrees in women and 3-8 degrees in men. This faulty movement pattern is a common dysfunction observed in the lower limb during dynamic activities. On the other hand, this is reported to be the underlying mechanism of knee injuries. Changes in knee valgus increase abnormal stresses on the tibiofemoral joint and increase the risk of injuries such as anterior cruciate ligament injuries, patellofemoral pain, iliotibial band syndrome, chronic ankle instability, acute lateral ankle sprains. The main cause of DKV is deficits in neuromuscular control and therefore injury prevention and rehabilitation strategies focus on improving neuromuscular control to avoid these injury mechanisms. There are conflicting results in the literature regarding which of the exercise approaches is superior for DKV, and there is a lack of studies evaluating 2D movement analysis, muscle mechanics and performance of corrective exercise training. Identifying individuals with abnormal movement patterns and those at risk is important to prevent future injuries. The aim of the study was to investigate the effect of corrective exercises on lower extremity biomechanics and performance in individuals with asymptomatic dynamic knee valgus.
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
- 18 Years 至 25 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Between 18 and 25 years of age
- •Have asymptomatic dynamic knee valgus
- •Being woman
排除标准
- •BMI≥ 30 kg/cm2
- •Lower extremity musculoskeletal pain
- •Lower extremity injury in the past 1 year
- •History of lower limb surgery
- •Neurological condition that may affect balance and coordination during the test
- •More than half an hour of intense exercise per week
- •Those who exercise vigorously for more than half an hour per week
研究组 & 干预措施
Exercise group
Intervention includes corrective exercises for dynamic knee valgus
干预措施: Exercise (Other)
Control group
The control group will be followed without intervention.
干预措施: Control (Other)
结局指标
主要结局
Frontal plan projection angle evaluation
时间窗: Before the intervention, up to 8 weeks
It will be evaluated with the Single Leg Drop Jump test. Kinovea® 2D motion two-dimensional video analysis software will be used to measure the knee-valgus/varus anterior plane projection angle (FPPA).
Single leg squat test
时间窗: Before the intervention, up to 8 weeks
During the test, they will be asked to perform a single-leg squat from a static position to at least 60° knee flexion and then return to the starting position. Kinovea® 2D motion two-dimensional video analysis software will be used for the measurement.
Viscoelastic properties of muscle
时间窗: Before the intervention, up to 8 weeks
The viscoelastic properties of the participants' muscle will be measured using a myotonometer (MyotonPRO, Tallinn, Estonia). It will be performed on the quadriceps, hamstring, gastrocnemius and hip adductor muscles. Individuals will be asked to contract the muscle and the center of the muscle mass will be identified and marked. The muscle will then be asked to relax. For the measurement, the probe is placed over the muscle, perpendicular to the skin surface, and mechanical force is applied to the subcutaneous tissue for a constant 15 milliseconds. The interval between each pulse is 8 ms and 5 pulses.
次要结局
- Static Balance Measurement(Before the intervention, up to 8 weeks)
- Dynamic Balance Measurement(Before the intervention, up to 8 weeks)
- Single Leg Forward Jump Test(Before the intervention, up to 8 weeks)
- Three Step Forward Jump Test(Before the intervention, up to 8 weeks)
- Vertical Jump Test(Before the intervention, up to 8 weeks)
研究者
Imge NAS
Lecturer
Medipol University