Patello Femoral SyndromeNCT07287267
Exploring the Relationship Between Range of Motion in Knee Rehabilitation Exercises and Pain in Patellofemoral Pain Syndrome
An observational study of Patello Femoral Syndrome, run by Ted Gunhamn at 1 site in Sweden.
Trial summary
This study aims to investigate the relationship between knee joint range of motion and pain in patients with patellofemoral pain syndrome (PFPS). In a cross-sectional observational design, PFPS patients will perform trials involving progressively increased knee joint range of motion in three closed-chain exercises… Read more about this study
- Who is it for?
- Ages 15 to 35 years
- Conditions the study is for
- Patello Femoral Syndrome
- What is being tested?
- Exercise
- How many people
- 17 participants
- Where
- 1 siteSweden
- Study dates
- 1 Dec 2024to 4 Dec 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 to 35 years
- All sexes
- Child, Adult
Study population: This project will include patients diagnosed with PFP (ICD-10: M22.2).
Who may be able to join
- Patients diagnosed with PFP in only one knee by a licensed healthcare professional.
- Aged 15-35 years.
- A physical activity level of 3/10 or higher on the Tegner Activity Scale before the injury.
Who cannot join
- Any prior injury or condition with residual symptoms that may affect the results.
- Current injury or condition affecting the performance of the test.
- Resting pain greater than 0-1/10 on the Numeric Pain Rating Scale (NRS) and pain greater than 1-2/10 during light daily activities such as walking, sitting, standing, or climbing stairs.
Trial locations and contacts
1 site in 1 country.
About this study
This study aims to investigate the relationship between knee joint range of motion and pain in patients with patellofemoral pain syndrome (PFPS). In a cross-sectional observational design, PFPS patients will perform trials involving progressively increased knee joint range of motion in three closed-chain exercises: squat, single-leg squat, and split squat. During each trial, participants will report pain levels on a 0-10 Visual Analog Scale (VAS) until either (1) achieving full depth in the respective exercise or (2) reaching a pain level of >5 on the VAS.
- Conditions
- Patello Femoral Syndrome
- Being tested
- Exercise
- Keywords
- Patellofemoral pain syndrome, Range of motion, patellofemoral pain
- Medical subject headings
- Patellofemoral Pain Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ExerciseOther
Exercise with progressively increased range of motion.
| Study group | Role | What they receive |
|---|---|---|
| Patellofemoral Pain Syndrome | Patients diagnosed with patellofemoral pain syndrome by health care provider. Receives: Other: Exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pain (VAS)
Pain measured 0-10 visual analog scale (VAS) reported during each trial of progressively increased range of motion during a single session.
Measured: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Range of motion
Degrees of knee flexion measured during each trial in one single session.
Measured: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Secondary outcomes (2)
Force
Force (N) (peak value) reported during the different trials in one session. Measured by force plates.
Measured: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Tegner Activity Scale (TAS)
The Tegner Activity Scale (TAS) will be used to assess the physical activity levels of the participants. Scale from 1-10 where 10 is highest possible physical activity and 1 is sedentary.
Measured: Baseline (Administered at the beginning of the study)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Dec 2025
- Study start1 Dec 2024
- Primary completion3 Dec 2025
- Study completion4 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Patello Femoral SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 17 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ted Gunhamn
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Ted Gunhamn, Linnaeus University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07287267
- Sponsor's protocol ID
- 2024-01422-01
- Status last verified
- Jun 2026
- First submitted
- 4 Sep 2025
- Last updated
- 2 Sep 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Exploring the Relationship Between Range of Motion in Knee Rehabilitation Exercises and Pain in Patellofemoral Pain Syndrome
- ClinicalTrials.gov ID
- NCT07287267
- Acronym / sponsor ID
- 2024-01422-01
- Conditions
- Patello Femoral Syndrome
- Keywords
- Patellofemoral pain syndrome, Range of motion, patellofemoral pain
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 17 participants (actual)
- Lead sponsor
- Ted GunhamnUniversity, hospital or other
- Study start
- 1 Dec 2024 (actual)
- Primary completion
- 3 Dec 2025 (actual)
- Study completion
- 4 Dec 2025 (actual)
- First posted
- 17 Dec 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to investigate the relationship between knee joint range of motion and pain in patients with patellofemoral pain syndrome (PFPS). In a cross-sectional observational design, PFPS patients will perform trials involving progressively increased knee joint range of motion in three closed-chain exercises: squat, single-leg squat, and split squat. During each trial, participants will report pain levels on a 0-10 Visual Analog Scale (VAS) until either (1) achieving full depth in the respective exercise or (2) reaching a pain level of >5 on the VAS.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patellofemoral Pain Syndrome | – | Other: ExercisePatients diagnosed with patellofemoral pain syndrome by health care provider. |
Who may qualify
- Ages
- 15 to 35 years
- Sex
- All
- Age groups
- Child, Adult
- Study population
- This project will include patients diagnosed with PFP (ICD-10: M22.2).
Key inclusion criteria (3 listed)
- Patients diagnosed with PFP in only one knee by a licensed healthcare professional.
- Aged 15-35 years.
- A physical activity level of 3/10 or higher on the Tegner Activity Scale before the injury.
Key exclusion criteria (3 listed)
- Any prior injury or condition with residual symptoms that may affect the results.
- Current injury or condition affecting the performance of the test.
- Resting pain greater than 0-1/10 on the Numeric Pain Rating Scale (NRS) and pain greater than 1-2/10 during light daily activities such as walking, sitting, standing, or climbing stairs.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ExerciseExercise with progressively increased range of motion. | Other | Patellofemoral Pain Syndrome |
Primary outcome
Pain (VAS)
Time frame: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Pain measured 0-10 visual analog scale (VAS) reported during each trial of progressively increased range of motion during a single session.
Range of motion
Time frame: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Degrees of knee flexion measured during each trial in one single session.
2 secondary outcomes
Force
Time frame: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)
Tegner Activity Scale (TAS)
Time frame: Baseline (Administered at the beginning of the study)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Sep 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Patello Femoral Syndrome, run by Ted Gunhamn at 1 site in Sweden.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pain (VAS) (time frame: Day 1 (Cross sectional single session. Outcomes will be collected during one single session for each participant.)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Sep 2026.