NCT07462429

Brief Summary

The goal of this single-arm pilot study is to examine the feasibility, acceptability, and preliminary efficacy of a progressive outdoor mindful physical activity intervention delivered via the Headspace mobile application for individuals with patellofemoral pain. AIM 1: Determine the feasibility and acceptability of the mindful activity intervention. AIM 2: Determine the preliminary efficacy of the mindful running intervention to improve the primary outcome of (2a) anterior knee pain, and secondary outcomes of (2b) kinesiophobia and (2c) running cadence and vertical forces (gait kinematics) in individuals with PFP. Our central hypothesis is that the intervention will be feasible and acceptable and will improve pain, kinesiophobia (injury-related fear), and running cadence (steps per minute) in individuals with patellofemoral pain. Participants will complete a three-phase progressive mindful physical activity intervention that involves: Phase 1: Introduction to mindfulness Phase 2: Guided mindful running Phase 3: Mindful running.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 11, 2025

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

March 4, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 10, 2026

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 5, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 5, 2026

Completed
Last Updated

May 19, 2026

Status Verified

February 1, 2026

Enrollment Period

6 months

First QC Date

March 4, 2026

Last Update Submit

May 15, 2026

Conditions

Keywords

MindfulnessPhysical ActivityRunningPatellofemoral Pain

Outcome Measures

Primary Outcomes (4)

  • Number of participants recruited to enroll in the study per week.

    Feasibility of the progressive mindful physical activity intervention will be assessed through the recruitment rate of adults with patellofemoral pain. Recruitment rate is defined as the number of participants recruited to enrol in the study per week.

    Through study completion, a total of approximately 6 months.

  • Percentage of interested and eligible participants who enrolled in the study

    Feasibility of the progressive mindful physical activity intervention will be assessed through established recruitment of adults with patellofemoral pain. Recruitment is defined as the percentage of participants who expressed interest in the study, were eligible, and enrolled in the study.

    Through study completion, a total of approximately 6 months

  • Percentage of participants retained in the study

    Feasibility of progressive mindful physical activity intervention will be assessed to determine participant retention. Retention is defined as the percentage of participants enrolled and who have completed all study measures through 5-weeks.

    Through study completion, a total of approximately 6 months

  • Mean Acceptability Score

    Acceptability of the progressive mindful physical activity intervention will be assessed via an acceptability survey, the Acceptability of the Intervention Measure (AIM) during the final assessment post-interventional week 5. Scores on the 4 item questionnaire range from 4 to 20. A mean score of 14 or greater will be interpreted as acceptable and a mean score of 16 or greater will be interpreted as high acceptability.

    Collected post-intervention, approximately 5 weeks after the baseline visit

Secondary Outcomes (3)

  • Change in pain-related fear as measured by the Tampa Scale of Kinesiophobia-11 Item (TSK-11)

    Collected at baseline and at the post-intervention visit, approximately 5 weeks apart

  • Change in knee pain and disability as measured by the Anterior Knee Pain Scale (AKPS)

    Collected at baseline and at the post-intervention visit, approximately 5 weeks apart

  • Change in running cadence (steps per minutes)

    Collected at baseline and at the post-intervention visit, approximately 5 weeks apart

Study Arms (1)

Progressive Mindful Physical Activity Intervention

EXPERIMENTAL
Behavioral: Progressive Mindful Physical Activity

Interventions

Participants will be given access to Headspace, which is a commercially available mobile application that provides evidence-based mindfulness and meditation tools. The mindful activity intervention will consist of three progressive phases, each lasting about 7-10 days: Introduction to Mindfulness, Guided Activity, and Mindful Activity, each lasting one week and outlined below. 1. Introduction to Mindfulness: Participants will be instructed to complete daily sessions from the Headspace "Pain Management" course. 2. Guided Activity: Participants will complete three runs using the following guided mindful running scripts provided by Headspace: "Run Easy", "Run Smart", and "Keep Running". The runs will be 12-, 15-, and 20-minutes, respectively. 3. Mindful Activity: Participants will complete three runs where they are encouraged to engage in mindfulness skills without any external input (i.e., no guided scripts or other audio). The runs will be 12-, 15-, and 20-minutes, respectively.

Progressive Mindful Physical Activity Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years old or older
  • Have access to an electronic mobile device that can be used to download the Headspace application
  • Meet the established diagnostic criteria for patellofemoral pain: pain in/around the anterior knee, and reproduction of this pain with movements that load the patellofemoral joint (i.e., squatting, stair climbing or descent, running, or jumping) based on self-report

You may not qualify if:

  • History of other musculoskeletal injuries in the past 6 months
  • Previous lower extremity musculoskeletal surgery in the past 12 months
  • Neuromuscular conditions that may affect movement,
  • Currently pregnant
  • Unable to attend in person study visits
  • Unable or unwilling to run for up to 20 minutes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of North Carolina at Chapel Hill

Durham, North Carolina, 27599, United States

Location

MeSH Terms

Conditions

Patellofemoral Pain SyndromeMotor Activity

Condition Hierarchy (Ancestors)

Joint DiseasesMusculoskeletal DiseasesBehavior

Study Officials

  • Hana Marmura, PhD, MPT

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR
  • Shelby Baez, PhD, LAT, ATC

    University of North Carolina, Chapel Hill

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 4, 2026

First Posted

March 10, 2026

Study Start

November 11, 2025

Primary Completion

May 5, 2026

Study Completion

May 5, 2026

Last Updated

May 19, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will share

The proposed research will include data from all patients regardless of successful completion of the proposed experimental protocol. The final dataset will include demographic information, self-reported knee pain/function, pain-related fear, and mindfulness questionnaires, and raw biomechanics data. Accompanying the data, a documentation file will be provided containing the methodological procedures used during the collection of the data and providing a key for all variables included within the final dataset. Prior to sharing this data, all personal identifying information will be removed to protect the rights and privacy of the participants.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Deidentified individual data that supports the results will be shared beginning 9 and continuing for 36 months following publication.
Access Criteria
IPD will only be shared provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC.

Locations