NCT03897569

Association Between Ankle Dorsiflexion and Frontal Projection Angle in PFPS

Association Between Ankle Dorsiflexion and Frontal Projection Angle During a Functional Task in the Patellofemoral Pain Syndrome

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 46 (actual)
• Sponsor: Cairo University · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: —

Summary

The study will investigate an association between ankle dorsiflexion and altered frontal knee kinematics during step down test in patients with PFPS.

Detailed description

Altered frontal and transverse plane hip kinematics during single leg weight-bearing tasks are thought to be important contributors to patellofemoral pain (PFP). The closed chain nature of single leg tasks means that hip kinematics can be influenced by more distal mechanics, such as foot pronation. One of the often-studied distal movements theorized to cause PFPS is pronation of the subtalar joint. Pronation is a tri-planar movement that includes dorsiflexion, eversion, and abduction of the foot. Many studies have examined eversion characteristics of PFPS patients, but the dorsiflexion aspect of the movement has been shown to be a possible risk factor, restricting dorsiflexion was shown to increase medial knee displacement in young healthy adults. Conversely, when available dorsiflexion ROM is increased, medial knee displacement is thought to decrease. Patients with PFPS were observed to have a decreased DFROM (dorsiflexion range of motion) as compared to normal individuals, though this topic has not thoroughly been investigated.

Conditions

• Patellofemoral Pain Syndrome

Interventions

Type	Name	Description
OTHER	frontal projection angle, ankle dorsiflexion	Dorsiflexion measurements will be taken in 4 different positions and repeated and recorded 3 times in each position, Prone bent, straight knee and Standing bent, straight knee. Prior to the measurement, the participants completed two 30-second calf stretches The FPPA was determined as the angle at the knee formed by lines connecting the anterior superior iliac spine, the midpoint of the femoral condyles and the midpoint of the malleoli at the deepest part of the squat

Timeline

• Start date: 2019-03-30
• Primary completion: 2019-07-01
• Completion: 2019-07-01
• First posted: 2019-04-01
• Last updated: 2019-07-30

Locations

1 site across 1 country: Egypt