Patellofemoral PainNCT06651996
Mobile-Based Telerehabilitation With Sensors for Adherence and Efficacy in Chronic Patellofemoral Pain: A Randomized Controlled Trial
A study testing one session of face-to-face telerehabilitation tutorial (OST), Three session of face-to-face telerehabilitation tutorials (TST) and Six session of face-to-face telerehabilitation tutorials (SST) in people with Patellofemoral Pain, run by Peking University Third Hospital at 1 site in China.
Trial summary
This study is a prospective, single-center trial involving 174 patients diagnosed with patellofemoral pain. The study adhered to ethical guidelines and obtained informed consent from all participants. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Patellofemoral Pain
- What is being tested?
- one session of face-to-face telerehabilitation tutorial (OST), Three session of face-to-face telerehabilitation tutorials (TST) and Six session of face-to-face telerehabilitation tutorials (SST)
- Type of treatment
- Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 174 participants
- Where
- 1 siteChina
- Study dates
- 1 Jan 2025to 31 May 2025
- Phase
- Interventional
- 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- (1) Anterior knee pain or retro-patellar pain caused by at least two of the following activities: prolonged sitting with knee flexion, bilateral squatting, ascending and descending stairs, kneeling, running, and jumping;
- (2) presence of one of the following signs: patellar tenderness, friction pain, or twitching pain, positive single-leg squat test, or positive knee extension resistance test;
- (3) knee pain lasting more than 3 months;
- (4) knee pain score greater than 3 out of 10 on the VAS;
- (5) unilateral pain and symptoms.
Who cannot join
- (1) acute injury of the knee ligaments, joint capsule, bursa or meniscus;
- (2) knee extension or flexion contracture deformity, thus being unable to perform normal lower limb flexion and extension;
- (3) patellofemoral joint dislocation or subluxation;
- (4) any traumatic, inflammatory or infectious disease of the lower limbs;
- (5) a history of knee surgery;
- (6) a history of cardiovascular and cerebrovascular diseases, diabetes, tumors;
- (7) spinal cord or neurological injury.
Trial locations and contacts
1 site in 1 country.
China1 site
Peking University Third Hospital Medicial Science Research Ethics Committee
Beijing
About this study
This study is a prospective, single-center trial involving 174 patients diagnosed with patellofemoral pain. The study adhered to ethical guidelines and obtained informed consent from all participants. Participants were randomly assigned to receive face-to-face remote rehabilitation guidance either 1 time, 3 times, or 6 times. The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation.Self-reported adherence was measured using the Exercise Adherence Rating Scale (EARS) at week 6 (i.e., 6 weeks after the participant completed their final face-to-face tutorial).ain intensity during daily activities and squatting at 60° was measured using the Visual Analog Scale (VAS; 0-10);7 quadriceps muscle strength (concentric and eccentric peak torque) was evaluated using isokinetic dynamometry; knee function was assessed with the Kujala Patellofemoral Score (0-100); fatigue was measured using the Fatigue Severity Scale (FSS; 9 items, 7 points each). Additionally, a closed-ended adherence survey captured participant perceptions of factors influencing adherence
Read the detailed description
The inestigators conducted a forward-looking, single-center pilot study with a follow-up period of 8 weeks. The study recruited 174 patients diagnosed with patellofemoral pain (PFP) by a professional sports physician at the Department of Sports Medicine, Peking University Third Hospital, between June and August 2024. The study adhered to the principles of the Declaration of Helsinki and was approved by the Research Ethics Committee of Peking University Third Hospital. Although this is a pilot study, the inestigators strictly followed the CONSORT guidelines. All participants signed an informed consent form and completed home rehabilitation interventions.
Inclusion and Exclusion Criteria During the trial, an investigator not involved in the study used an electronically generated random sequence to assign patients to three groups. Two professional physical therapists (N.C and S.R) were responsible for assessing and supervising the accuracy of the project and were unaware of the grouping details.
Interventions After randomization, participants received a package containing two wearable motion sensors, a charger, resistance bands, and a manual. Additionally, the rehabilitation software provided lectures and Q\&A sessions related to the condition, accessible via Android or iOS platforms. All data collected by the sensors were strictly encrypted to protect patient information and privacy. Each participant was assigned a therapist for home rehabilitation support, and a follow-up function via the software or telephone was used to remind patients who missed three remote rehabilitation sessions.
Before starting home rehabilitation, patients attended a briefing at the hospital. Participants were divided into three groups: Group 1 received 1 face-to-face remote rehabilitation tutorial (OST), Group 2 received 3 face-to-face remote rehabilitation tutorials (TST), and Group 3 received 6 face-to-face remote rehabilitation tutorials (SST). Each session lasted 40 minutes and was conducted three times a week (on Tuesday, Thursday, and Saturday). Following the briefing, patients performed home remote rehabilitation training on the same day, with each session lasting 40 minutes. The remote rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training.
Primary Outcomes. The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation. Data recording commenced immediately after each participant completed his or her final face-to-face tutorial, thereby isolating adherence to the unsupervised home program. Because the three groups differed in the number of tutorials received, the calendar start date of the 6-week recording window varied: OST participants began the recording window after session 1; TST participants after session 3; and SST participants after session 6. The 6-week duration of the window was identical across groups.
Secondary Outcomes. Self-reported adherence was measured using the Exercise Adherence Rating Scale (EARS) at week 6 (i.e., 6 weeks after the participant completed their final face-to-face tutorial). The EARS comprises Section A (6 items assessing adherence to prescribed home exercise) and Section B (10 items exploring barriers to adherence). Items are rated on a 5-point Likert scale (0 = "strongly disagree" to 4 = "strongly agree"), with positively phrased items reverse scored such that higher scores indicate better adherence. The EARS has demonstrated good reliability (Cronbach α = .85) and construct validity. (Multimedia Appendix 3). Secondary engagement metrics, including frequency of question-and-answer visits and number of reminder alerts generated by the system, were recorded over the 6-week period and explored as surrogate indicators of self-management behavior but were not included in the primary adherence endpoint. Additional secondary outcomes were assessed at the 8-week endpoint: pain intensity during daily activities and squatting at 60° was measured using the Visual Analog Scale (VAS; 0-10);7 quadriceps muscle strength (concentric and eccentric peak torque) was evaluated using isokinetic dynamometry; knee function was assessed with the Kujala Patellofemoral Score (0-100); fatigue was measured using the Fatigue Severity Scale (FSS; 9 items, 7 points each). Additionally, a closed-ended adherence survey captured participant perceptions of factors influencing adherence
- Conditions
- Patellofemoral Pain
- Being tested
- one session of face-to-face telerehabilitation tutorial (OST), Three session of face-to-face telerehabilitation tutorials (TST), Six session of face-to-face telerehabilitation tutorials (SST)
- Keywords
- mHealth; Telerehabilitation; Patellofemoral pain; Exercise adherence; Wearable sensors; Tutorial dose.
- 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.
one session of face-to-face telerehabilitation tutorial (OST)Device
The first group participated in a face-to-face tele-rehabilitation session in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday.
Three session of face-to-face telerehabilitation tutorials (TST)Device
The second group participated in three face-to-face tele-rehabilitation sessions in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday.
Six session of face-to-face telerehabilitation tutorials (SST)Device
The third group participated in six face-to-face tele-rehabilitation sessions in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday.
| Study group | Role | What they receive |
|---|---|---|
| one session of face-to-face telerehabilitation tutorial (OST) | Sham comparator | Participants were assigned to receive either one session of face-to-face telerehabilitation tutorial (OST) and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. Receives: Device: one session of face-to-face telerehabilitation tutorial (OST) |
| Three session of face-to-face telerehabilitation tutorials (TST) | Experimental | Participants were assigned to receive 3 in-person remote rehabilitation coaching (TST) sessions and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. Receives: Device: Three session of face-to-face telerehabilitation tutorials (TST) |
| Six session of face-to-face telerehabilitation tutorials (SST) | Experimental | Participants were assigned to receive 6 in-person remote rehabilitation coaching (SST) sessions and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. Receives: Device: Six session of face-to-face telerehabilitation tutorials (SST) |
What is being measured
The primary outcome is the main question the study is designed to answer.
The primary outcome was device-recorded training adherence
The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation. Data recording commenced immediately after each participant completed his or her final face-to-face tutorial, thereby isolating adherence to the unsupervised home program. Because the three groups differed in the number of tutorials received, the calendar start date of the 6-week recording window varied: OST participants began the recording window after session 1; TST participants after session 3; and SST participants after session 6. The 6-week duration of the window was identical across groups.
Measured: Six weeks after completion of face-to-face rehabilitation instruction
Secondary outcomes (6)
pain intensity
Secondary outcome measures were collected at the hospital 8 weeks after the start of the study, including the severity of knee pain during daily living and squatting at 60 degrees (from 0 "no pain" to 10 "most severe") assessed on the visual analogue scale (VAS);
Measured: Complete the entire 8-week rehabilitation process
Self-reported adherence was measured using the Exercise Adherence Rating Scale
Self-reported adherence was measured using the Exercise Adherence Rating Scale (EARS) at week 6 (i.e., 6 weeks after the participant completed their final face-to-face tutorial). The EARS comprises Section A (6 items assessing adherence to prescribed home exercise) and Section B (10 items exploring barriers to adherence). Items are rated on a 5-point Likert scale (0 = "strongly disagree" to 4 = "strongly agree"), with positively phrased items reverse scored such that higher scores indicate better adherence. The EARS has demonstrated good reliability (Cronbach α = .85) and construct validity.
Measured: Six weeks after completion of face-to-face rehabilitation instruction
quadriceps strength
Isokinetic quadriceps femoris concentric and eccentric peak torque reflect muscle strength around the knee joint.The open-chain muscle strength of the quadriceps muscle was tested with an isokinetic muscle strength testing system (Contrex MJ) in two modes: 60°/s centripetal contraction and 60°/s centrifugal contraction. The range of the test was from 90° to 20° of knee flexion. During the test, the subjects were asked to relax as much as possible before the test, with the trunk flexed at an angle of 120°, so that the test could be performed under the reduced influence of gravity. Each contraction mode was repeated 5 times, and the interval between adjacent contraction modes was 3 minutes to rest the thigh muscles.
Measured: Complete the entire 8-week rehabilitation process
Kujala scores
Kujala patellofemoral score is used to evaluate the function of the knee joint (0-100, with higher scores indicating better knee function)
Measured: Complete the entire 8-week rehabilitation process
Fatigue severity scale
Fatigue severity scale (FSS) is used to measure the fatigue degree of patients with various diseases and its impact on people's activities and lifestyle (9 questions in total, 7 points for each question, the higher the score, the greater the fatigue degree)
Measured: Complete the entire 8-week rehabilitation process
adherence survey
Furthermore, the adherence survey collected structured responses through closed-ended questions on factors influencing telerehabilitation adherence. Response frequencies were calculated for each item
Measured: Complete the entire 8-week rehabilitation process
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Oct 2024
- Study start1 Jan 2025
- Primary completion31 May 2025
- Study completion31 May 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Patellofemoral PainStudies of the same condition, open and under way.
- More trials run by Peking University Third HospitalThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 174 participants (actual)
Sponsor and investigators
- Lead sponsor
- Peking University Third Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06651996
- Sponsor's protocol ID
- M2023699
- Status last verified
- May 2025
- First submitted
- 19 Sep 2024
- Last updated
- 28 May 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 28 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Mobile-Based Telerehabilitation With Sensors for Adherence and Efficacy in Chronic Patellofemoral Pain: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT06651996
- Acronym / sponsor ID
- M2023699
- Conditions
- Patellofemoral Pain
- Keywords
- mHealth; Telerehabilitation; Patellofemoral pain; Exercise adherence; Wearable sensors; Tutorial dose.
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 174 participants (actual)
- Lead sponsor
- Peking University Third HospitalUniversity, hospital or other
- Study start
- 1 Jan 2025 (actual)
- Primary completion
- 31 May 2025 (actual)
- Study completion
- 31 May 2025 (actual)
- First posted
- 22 Oct 2024 (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 is a prospective, single-center trial involving 174 patients diagnosed with patellofemoral pain. The study adhered to ethical guidelines and obtained informed consent from all participants. Participants were randomly assigned to receive face-to-face remote rehabilitation guidance either 1 time, 3 times, or 6 times. The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation.Self-reported adherence was measured using the Exercise Adherence Rating Scale (EARS) at week 6 (i.e., 6 weeks after the participant completed their final face-to-face tutorial).ain intensity during daily activities and squatting at 60° was measured using the Visual Analog Scale (VAS; 0-10);7 quadriceps muscle strength (concentric and eccentric peak torque) was evaluated using isokinetic dynamometry; knee function was assessed with the Kujala Patellofemoral Score (0-100); fatigue was measured using the Fatigue Severity Scale (FSS; 9 items, 7 points each). Additionally, a closed-ended adherence survey captured participant perceptions of factors influencing adherence
Detailed description
The inestigators conducted a forward-looking, single-center pilot study with a follow-up period of 8 weeks. The study recruited 174 patients diagnosed with patellofemoral pain (PFP) by a professional sports physician at the Department of Sports Medicine, Peking University Third Hospital, between June and August 2024. The study adhered to the principles of the Declaration of Helsinki and was approved by the Research Ethics Committee of Peking University Third Hospital. Although this is a pilot study, the inestigators strictly followed the CONSORT guidelines. All participants signed an informed consent form and completed home rehabilitation interventions.
Inclusion and Exclusion Criteria During the trial, an investigator not involved in the study used an electronically generated random sequence to assign patients to three groups. Two professional physical therapists (N.C and S.R) were responsible for assessing and supervising the accuracy of the project and were unaware of the grouping details.
Interventions After randomization, participants received a package containing two wearable motion sensors, a charger, resistance bands, and a manual. Additionally, the rehabilitation software provided lectures and Q\&A sessions related to the condition, accessible via Android or iOS platforms. All data collected by the sensors were strictly encrypted to protect patient information and privacy. Each participant was assigned a therapist for home rehabilitation support, and a follow-up function via the software or telephone was used to remind patients who missed three remote rehabilitation sessions.
Before starting home rehabilitation, patients attended a briefing at the hospital. Participants were divided into three groups: Group 1 received 1 face-to-face remote rehabilitation tutorial (OST), Group 2 received 3 face-to-face remote rehabilitation tutorials (TST), and Group 3 received 6 face-to-face remote rehabilitation tutorials (SST). Each session lasted 40 minutes and was conducted three times a week (on Tuesday, Thursday, and Saturday). Following the briefing, patients performed home remote rehabilitation training on the same day, with each session lasting 40 minutes. The remote rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training.
Primary Outcomes. The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation. Data recording commenced immediately after each participant completed his or her final face-to-face tutorial, thereby isolating adherence to the unsupervised home program. Because the three groups differed in the number of tutorials received, the calendar start date of the 6-week recording window varied: OST participants began the recording window after session 1; TST participants after session 3; and SST participants after session 6. The 6-week duration of the window was identical across groups.
Secondary Outcomes. Self-reported adherence was measured using the Exercise Adherence Rating Scale (EARS) at week 6 (i.e., 6 weeks after the participant completed their final face-to-face tutorial). The EARS comprises Section A (6 items assessing adherence to prescribed home exercise) and Section B (10 items exploring barriers to adherence). Items are rated on a 5-point Likert scale (0 = "strongly disagree" to 4 = "strongly agree"), with positively phrased items reverse scored such that higher scores indicate better adherence. The EARS has demonstrated good reliability (Cronbach α = .85) and construct validity. (Multimedia Appendix 3). Secondary engagement metrics, including frequency of question-and-answer visits and number of reminder alerts generated by the system, were recorded over the 6-week period and explored as surrogate indicators of self-management behavior but were not included in the primary adherence endpoint. Additional secondary outcomes were assessed at the 8-week endpoint: pain intensity during daily activities and squatting at 60° was measured using the Visual Analog Scale (VAS; 0-10);7 quadriceps muscle strength (concentric and eccentric peak torque) was evaluated using isokinetic dynamometry; knee function was assessed with the Kujala Patellofemoral Score (0-100); fatigue was measured using the Fatigue Severity Scale (FSS; 9 items, 7 points each). Additionally, a closed-ended adherence survey captured participant perceptions of factors influencing adherence
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| one session of face-to-face telerehabilitation tutorial (OST) | Sham comparator | Device: one session of face-to-face telerehabilitation tutorial (OST)Participants were assigned to receive either one session of face-to-face telerehabilitation tutorial (OST) and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. |
| Three session of face-to-face telerehabilitation tutorials (TST) | Experimental | Device: Three session of face-to-face telerehabilitation tutorials (TST)Participants were assigned to receive 3 in-person remote rehabilitation coaching (TST) sessions and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. |
| Six session of face-to-face telerehabilitation tutorials (SST) | Experimental | Device: Six session of face-to-face telerehabilitation tutorials (SST)Participants were assigned to receive 6 in-person remote rehabilitation coaching (SST) sessions and complete an 8-week home digital health program consisting of sensor-guided exercise therapy and knee pain self-care education. The primary outcome was short-term adherence as assessed by the Exercise Adherence Rating Scale (EARS) after 6 weeks of face-to-face therapy. Secondary measures included pain intensity, quadriceps strength, Kujala patellofemoral score, fatigue severity scale, and qualitative interviews affecting adherence. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (5 listed)
- (1) Anterior knee pain or retro-patellar pain caused by at least two of the following activities: prolonged sitting with knee flexion, bilateral squatting, ascending and descending stairs, kneeling, running, and jumping;
- (2) presence of one of the following signs: patellar tenderness, friction pain, or twitching pain, positive single-leg squat test, or positive knee extension resistance test;
- (3) knee pain lasting more than 3 months;
- (4) knee pain score greater than 3 out of 10 on the VAS;
- (5) unilateral pain and symptoms.
Key exclusion criteria (7 listed)
- (1) acute injury of the knee ligaments, joint capsule, bursa or meniscus;
- (2) knee extension or flexion contracture deformity, thus being unable to perform normal lower limb flexion and extension;
- (3) patellofemoral joint dislocation or subluxation;
- (4) any traumatic, inflammatory or infectious disease of the lower limbs;
- (5) a history of knee surgery;
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 |
|---|---|---|
| one session of face-to-face telerehabilitation tutorial (OST)The first group participated in a face-to-face tele-rehabilitation session in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday. | Device | one session of face-to-face telerehabilitation tutorial (OST) |
| Three session of face-to-face telerehabilitation tutorials (TST)The second group participated in three face-to-face tele-rehabilitation sessions in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday. | Device | Three session of face-to-face telerehabilitation tutorials (TST) |
| Six session of face-to-face telerehabilitation tutorials (SST)The third group participated in six face-to-face tele-rehabilitation sessions in the hospital on the use of sensors and rehabilitation software before the home-rehabilitation session. Thereafter, the tele-rehabilitation program included muscle strengthening, flexibility stretching, and movement quality training every Tuesday, Thursday, and Saturday. | Device | Six session of face-to-face telerehabilitation tutorials (SST) |
Primary outcome
The primary outcome was device-recorded training adherence
Time frame: Six weeks after completion of face-to-face rehabilitation instruction
The primary outcome was device-recorded training adherence, defined as cumulative total training time (hours) and mean weekly training time (hours/week) over the first 6 weeks of independent home-based telerehabilitation. Data recording commenced immediately after each participant completed his or her final face-to-face tutorial, thereby isolating adherence to the unsupervised home program. Because the three groups differed in the number of tutorials received, the calendar start date of the 6-week recording window varied: OST participants began the recording window after session 1; TST participants after session 3; and SST participants after session 6. The 6-week duration of the window was identical across groups.
6 secondary outcomes
pain intensity
Time frame: Complete the entire 8-week rehabilitation process
Self-reported adherence was measured using the Exercise Adherence Rating Scale
Time frame: Six weeks after completion of face-to-face rehabilitation instruction
quadriceps strength
Time frame: Complete the entire 8-week rehabilitation process
Kujala scores
Time frame: Complete the entire 8-week rehabilitation process
Fatigue severity scale
Time frame: Complete the entire 8-week rehabilitation process
adherence survey
Time frame: Complete the entire 8-week rehabilitation process
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 28 May 2026.
- Individual participant dataSharing planned: No
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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?
A study testing one session of face-to-face telerehabilitation tutorial (OST), Three session of face-to-face telerehabilitation tutorials (TST) and Six session of face-to-face telerehabilitation tutorials (SST) in people with Patellofemoral Pain, run by Peking University Third Hospital at 1 site in China.
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 5 inclusion and 7 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 28 May 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 China. 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. Some participants in this study may receive a placebo. 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?
The primary outcome was device-recorded training adherence (time frame: Six weeks after completion of face-to-face rehabilitation instruction). 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 28 May 2026.