Limited Ankle Dorsiflexion and Effect on Single Limb Squats in Individuals With Patellofemoral Pain

Not Applicable

Recruiting

• Conditions: Patellofemoral Pain
• Interventions: Other: No mobilization with movement and education; Other: Mobilization with Movement

• Registration Number: NCT05285007
• Lead Sponsor: Loma Linda University

Brief Summary

The purpose of this graduate student research study is to investigate the relationship between limited ankle dorsiflexion and the potential effects on a single limb squat task in the Patellofemoral/Knee Pain population.

Detailed Description

1. Participants will undergo Covid screening prior to filling out consent form and PHI. Randomization will occur to create an experimental group and a minimal intervention group.

2. Participants will complete two self-reported questionnaires on how their diagnosis affects functional activities.

3. Dorsiflexion range of motion in a weight bearing position will be taken.

4. Hip abductor strength on tested limb will be measure on isokinetic device.

5. The Lateral Step Down test will be conducted for 6 trials on each participant, 3 with a heel wedge and 3 without, movement recorded, and graded using two motion capture devices.

6. The experimental group will receive two interventions to increase dorsiflexion range of motion. The minimal intervention group will read and infographic and complete 5 minutes of treadmill walking.

7. Each participant will then have their dorsiflexion measured again prior to completing another 3 trials of the Lateral Step Down test.

Study Timeline

• Study Start: 2022-03-02
• Study First Submitted: 2022-03-08
• Study First Submitted QC: 2022-03-15
• Study First Posted: 2022-03-17
• Status Verified: 2025-02
• Last Update Submitted: 2025-02-03
• Last Update Posted: 2025-02-05
• Primary Completion: 2025-12
• Study Completion: 2025-12

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Female
• Target Recruitment: 60

Inclusion Criteria

• History of active Patellofemoral Pain for at least 6 months
• No clinic based therapeutic interventions for a 6-month period prior to testing
• Females aged 18-59 years' old
• Limited ankle dorsiflexion as noted by <45degs using the weight bearing lunge test

Exclusion Criteria

• History of musculoskeletal surgery or fractures on the tested leg or lumbar spine that could affect their biomechanics during the study
• History of soft tissue or skeletal abnormalities in the tested limb
• Current knee effusion
• Resting pain greater than 5/10

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Minimal Intervention Group	No mobilization with movement and education	The minimal intervention group will read and infographic and complete 5 minutes of treadmill walking.
Primary Intervention Group	Mobilization with Movement	The experimental group will receive two interventions to increase dorsiflexion range of motion.

Primary Outcome Measures

Name	Time	Method
Weight bearing lunge test	change between baseline and post intervention on Day 1	This test is used to assess a participant's available dorsiflexion range of motion in a weight bearing position. Furthermore, this places the participants hip, knee, and ankle into a flexed position which correlates with the squat tests we will be using.

Secondary Outcome Measures

Name	Time	Method
Patellofemoral Disability Index	change between baseline and post intervention on Day 1	The Index is a self-reported questionnaire that addresses the amount of pain a person may have during tasks such as running, jumping, and stair climbing.

Trial Locations

Locations (1)

Loma Linda University; 🇺🇸 Loma Linda, California, United States