The Effect of Subtalar Joint Antipronation Taping on the Dynamic Knee Valgus in Female Volleyball Players with Low Medial Arch: a Double Blinded Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 32
- 试验地点
- 2
- 主要终点
- Single Leg Squat Test
研究概览
简要总结
This study aims to investigate the biomechanical mechanisms of dynamic knee valgus and the impact of subtalar pronation, particularly due to decreased medial longitudinal arch, on knee injury risk, highlighting the importance of prevention and intervention strategies for athlete health.
详细描述
Dynamic knee valgus is an abnormal movement pattern of the lower extremity, formed by the combination of femoral adduction and internal rotation, tibial abduction and internal rotation, and subtalar pronation, and it is a significant risk factor for knee injuries. The foot and ankle represent the first link in the lower extremity kinetic chain, and a mechanical relationship between subtalar joint motion and tibial rotation triggers internal rotation of the tibia during weight-bearing. This is particularly more pronounced in female athletes, as increased foot pronation and medial longitudinal arch (MLA) drop contribute to dynamic knee valgus. Supporting the MLA has become increasingly important in injury prevention, as there is evidence in the literature showing that interventions to reduce foot pronation decrease dynamic knee valgus and help prevent patellofemoral pain and anterior cruciate ligament injuries.
The aim of this study is to investigate the effects of antipronation taping on dynamic knee valgus and knee flexion angle during functional jump tests in female volleyball players with MLA drop. Innovative taping materials, such as Dynamic Tape, when applied correctly, can support the MLA, reduce tibial rotation, and decrease abnormal movements. While there is existing evidence that MLA-supporting orthotics reduce such injury risks, no studies have specifically examined antipronation taping with Dynamic Tape applied to the subtalar joint. This study seeks to explore modifiable risk factors associated with common knee injuries in female athletes from a foot posture perspective and contribute to athlete health.
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
- 16 Years 至 25 Years（Child, Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Actively playing volleyball for at least 5 years, A drop of 10 mm or more in the navicular drop test, A score of ≥ +4 according to the A foot posture index.
排除标准
- •A history of lower extremity injury within the last 3 months, A history of ankle and/or knee surgery, Having non-structural instability, A history of congenital or traumatic deformity in the lower extremity.
结局指标
主要结局
Single Leg Squat Test
时间窗: Pre-taping and within 1 hour after taping
In this test, athletes were instructed to perform a single-leg squat with their hands on their waist, maintaining balance for as long as possible, preferably for 5 seconds. Only trials that reached the required minimum flexion angle and maintained balance were considered valid. Three valid attempts were performed. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.
Single Leg Landing Test
时间窗: Pre-taping and within 1 hour after taping
For this test, each athlete was asked to step off a 30 cm high box and extend the measurement leg forward to drop downward. The maximum knee valgus and flexion angles at the end of the drop were measured using two camera recordings, one from the front and one from the side. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.
Vertical Drop Jump Test
时间窗: Pre-taping and within 1 hour after taping
In this test, athletes were instructed to stand with their feet shoulder-width apart on a 30 cm high box. They were then asked to jump into the square area in front of the box and immediately jump as far as possible using their arms for assistance. The test was completed once the athlete had made three successful jumps. The average of the three jumps was recorded. During the tests, video recordings were made from both the front and the side. The footage was analyzed using the Microsoft OptoJump® Next program with a 2D analysis method to measure knee flexion and valgus angles.
次要结局
未报告次要终点
研究者
Murat Akıncı
Msc
Ankara Yildirim Beyazıt University