M76.5
Conditions
Interventions
Group 1: Whole body vibration training:
3 times per week for 12 weeks,10 times standing for 60 seconds on a vibrating platform, frequency 30Hz, amplitude 2mm, acceleration 2g, knee angle 50°
Group 2:
RM). Progressive overload is ensured by increasing the weight with a concurrent reduction of repetitions: 12 RM in week 2 and 3, 10 RM in week 4 and 5
8 RM in week 6 to 8
6 RM in week 9 to 12. The movement range should be from 90° flexion to full extension and last three seconds for the eccentric and three for the concentric phase.
Group 3: Wait and see control group:
10female) for a cross sectional comparison of muscle strength and tendon properties.
One-time assessment of muscle strength and tendon properties using ultrasonography ans dynamometry.
Sponsors
Universität Salzburg IFFB Sport- und BewegungswissenschaftAG-Trainingswissenschaft
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: Patients (aged 18-40 years) with a history of chronic knee pain in the proximal section of the patella or its patellar insertion in connection with training or competition will be recruited for the main study. Further inclusion criteria contain palpation tenderness, VISA-P score smaller than 80 and ultrasound characteristics of a tendon in a degenerative phase (tendon thickening; hypoechoic zones). Clinical symptoms of patellar tendinopathy patients have to last since at least three month to be classified as chronic. Addition 3.10.2017 20 healthy male and femal subjects for cross sectional coomparsions (age 18-40)
Exclusion criteria
Exclusion criteria: Exclusion criteria contain acute herniated discs and thrombosis, acute inflammatory disorders of the musculoskeletal system, gall stones, implants, acute surgeries, hernia, acute megrim, lager-area wounds, rheumatoid arthritis, epilepsy, multiple sclerosis, stroke, active arthrosis, osteoporosis fractures, pregnancy, joint implants, diabetes mellitus type II, cardiac pacemaker, tumors, uncontrolled angina pectoris, not monitored hypertension, cardiovascular disease, valvular aortic stenosis, cardiomyopathy, cochlear, otologic, or ear implant, insulin or infusion pump, defibrillator, any implant held in place by a magnet, tissue expanders (plastic surgery), implanted catheter, clamp, clips, valves, or other metal, tattoos or permanent makeup above shoulders, piercings, shrapnel or metal fragments, ever had metal removed from eye, ever worked as a metal worker, eye lenses, claustrophobia, acute knee or patellar tendon injuries, chronic joint diseases, signs or symptoms of other coexisting knee pathologies, knee surgery, injection of any kind in the patellar tendon in the preceding three months, current use of anticoagulants, corticosterois injections within 12 months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary clinical outcomes are: - The VISA-P score - The patellar tendon thickness - The neovascularization in the tendon - Tendon hypoechoic areas Variables will be measured before and after the intervention period and after a 6 months foollow-up. | — |
Secondary
| Measure | Time frame |
|---|---|
| Additionally, secondary outcomes contain the reduction of PT CSAs and increase in PT stiffness and knee extensor strength due to the vibration intervention. | — |
Countries
Austria
Contacts
Public ContactFlorian Rieder
Universität Salzburg IFFB Sport- und Bewegungswissenschaft
Outcome results
None listed