Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
This study investigates if live feedback during home-based exercises will improve the ability to perform the exercises with the prescribed time under tension (TUT) per repetition compared with no feedback among adolescents with patellofemoral pain. The hypothesis is that adolescents who receive live feedback from BandCizerâ„¢ will have a mean TUT that is significantly closer to the prescribed TUT compared to the group not receiving feedback during the course of the intervention.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Feedback group | Experimental | Receives live feedback on TUT and pulling force during exercises. |
|
| Control group | Active Comparator | Receives no feedback on TUT but on pulling force during exercises. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Feedback on TUT | Other | Access to live visual and auditory feedback on TUT and pulling force from an application on an iPad. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Mean deviation from the prescribed TUT per repetition in seconds during the course of the intervention | The mean deviation is calculated as the difference between actual TUT and prescribed TUT (8 seconds). E.g. if the actual TUT is 6.5 seconds, the deviation is 1.5 seconds | From 0-6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| The total number of repetitions performed | From 0-6 weeks | |
| Pulling force exerted per repetition measured in kilos | This will be expressed as the maximum pulling force during each repetition | From 0-6 weeks |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Michael S Rathleff, Ph.d. | Aalborg University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Aalborg Universitetshospital | Aalborg | The North Denmark Region | 9000 | Denmark |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27250984 | Derived | Riel H, Matthews M, Vicenzino B, Bandholm T, Thorborg K, Rathleff MS. Efficacy of live feedback to improve objectively monitored compliance to prescribed, home-based, exercise therapy-dosage in 15 to 19 year old adolescents with patellofemoral pain- a study protocol of a randomized controlled superiority trial (The XRCISE-AS-INSTRUcted-1 trial). BMC Musculoskelet Disord. 2016 Jun 2;17:242. doi: 10.1186/s12891-016-1103-y. |
Not provided
Not provided
No later than 1 year after the final follow-up, a completely anonymised data set to an appropriate data archive for sharing purposes will be delivered.
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D046788 | Patellofemoral Pain Syndrome |
| D009140 | Musculoskeletal Diseases |
| D007592 | Joint Diseases |
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D015444 | Exercise |
| ID | Term |
|---|---|
| D009043 | Motor Activity |
| D009068 | Movement |
| D009142 | Musculoskeletal Physiological Phenomena |
| D055687 | Musculoskeletal and Neural Physiological Phenomena |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| No feedback on TUT | Other | Access only to live visual feedback on pulling force from an application on an iPad. |
|
| Exercise | Other | 3 exercises (knee extension, hip abduction and hip extension) using an elastic band with 3 sets of 10 repetitions at 10-12 RM 3 times a week for 6 weeks. |
|
| Isometric strength | Presented as Nm/kg in x, y and z direction | At baseline and at the 6 week follow up |
| Pain measured on a 100 mm VAS | Is entered into the app by the adolescent before and after each exercise | From 0-6 weeks |
| Kujala Patellofemoral Scale-score | Gives a score on patellofemoral pain ranging from 0 to 100 with 0 as complete disability and 100 as fully functional | At baseline and at the 6 week follow up |
| Global rating of change | Self-reported recovery on a 7-point Likert scale ranging from "much improved" to "much worse" | At the 6 week follow up |
| Summary of resistance | Total pulling force exerted during the course of the intervention measured in kilos | From 0-6 weeks |