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

Limited Ankle Dorsiflexion and Effect on Single Limb Squats in Individuals With Patellofemoral Pain: Interventions and Outcomes in a Randomized Clinical Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05285007
Enrollment
60
Registered
2022-03-17
Start date
2022-03-02
Completion date
2027-05-01
Last updated
2026-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patellofemoral Pain

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.

Interventions

OTHERMobilization with Movement

Participants will be lunging on a box with posterior ankle glide of 10 seconds times 5 sets. They will have 30 seconds rest between trials. Participant will have their ankle taped and then walk on a treadmill at a self-selected pace for 5 minutes.

OTHERNo mobilization with movement and education

Participants ankle will not be taped and they will walk on the treadmill for 5 minutes and receive education.

Sponsors

Loma Linda University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 59 Years
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frameDescription
Weight bearing lunge testchange between baseline and post intervention on Day 1This 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

MeasureTime frameDescription
Patellofemoral Disability Indexchange between baseline and post intervention on Day 1The 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.

Countries

United States

Contacts

CONTACTEverett Lohman, DSc
elohman@llu.edu909-558-4632
PRINCIPAL_INVESTIGATOREverett Lohman, Dsc

Loma Linda University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 21, 2026