Joint Diseases, Musculoskeletal Disorders, Patellofemoral Pain Syndrome
Conditions
Keywords
Adolescent, Physical therapy modalities, Exercise intervention, Auditive feedback, Visual feedback
Brief summary
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 BandCizer™ 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.
Interventions
OTHERFeedback on TUT
Access to live visual and auditory feedback on TUT and pulling force from an application on an iPad.
OTHERNo feedback on TUT
Access only to live visual feedback on pulling force from an application on an iPad.
OTHERExercise
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.
Sponsors
Aalborg University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
15 Years to 19 Years
Healthy volunteers
No
Inclusion criteria
* 15 to 19 years of age * Anterior knee pain of non-traumatic origin which is provoked by at least two of the following activities: prolonged sitting with bended knees or kneeling, squatting, running, jumping or ascending or descending stairs * Tenderness on palpation of the peripatellar borders * Pain of more than 6 weeks duration * Worst pain during the previous week ≥ 30 mm on a 100 mm VAS
Exclusion criteria
* Concomitant pain from other structures in the knee (e.g. ligament, tendon or cartilage), the hip or the lumbar spine * Previous knee surgery * Patellofemoral instability
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean deviation from the prescribed TUT per repetition in seconds during the course of the intervention | From 0-6 weeks | 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 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The total number of repetitions performed | From 0-6 weeks | — |
| Pulling force exerted per repetition measured in kilos | From 0-6 weeks | This will be expressed as the maximum pulling force during each repetition |
| Isometric strength | At baseline and at the 6 week follow up | Presented as Nm/kg in x, y and z direction |
| Summary of resistance | From 0-6 weeks | Total pulling force exerted during the course of the intervention measured in kilos |
| Kujala Patellofemoral Scale-score | At baseline and at the 6 week follow up | Gives a score on patellofemoral pain ranging from 0 to 100 with 0 as complete disability and 100 as fully functional |
| Global rating of change | At the 6 week follow up | Self-reported recovery on a 7-point Likert scale ranging from much improved to much worse |
| Pain measured on a 100 mm VAS | From 0-6 weeks | Is entered into the app by the adolescent before and after each exercise |
Countries
Denmark
Outcome results
None listed