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This is a randomized controlled trial investigating the effect of variable load training in patients with knee osteoarthrosis.
The intervention will consist of resistance training with variable load in knee extension- and flexion. The control group will receive conventional strength training with rubber band.
Outcome measures will be the Knee Osteoarthrosis Outcome Score, functional capacity measured in a sit to stand test, 30m. pace walk and a 9 step stair climb test. Additionally isometric strength in knee flexion- and extension will be measured.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Variable load training | Experimental | The participants will be training two times per week in 10 weeks. Training will consist of variable load training in knee flexion- and extension. Training will be based on symptoms in isometric strength at five different angles of flexion- and extension. |
|
| Conventional strength training | Active Comparator | The participants will be training two times per week in 10 weeks. Training will consist of a training programme consisting of strength training with rubber bands for hip and knee. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Variable load training | Other | Based on symptoms/strength measured in an isometric maximum strength test at five different angles of knee flexion- and extension, participants will be training with variable load during both concentric and excentric phase of the dynamic movement. Initially participants will start at 40% of symptom limited isometric strength, this will increase to 50% during the training period. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in self reported knee function | Knee Osteoarthrosis Outcome Score (100-0, 100 indicating no symptoms and 0 indicating extreme symptoms) | At baseline and 10 weeks follow up |
| Measure | Description | Time Frame |
|---|---|---|
| Change in functional capacity | Sit to stand test | At baseline and 10 weeks follow up |
| Change in isometric strength | Isometric strength in knee flexion- and extension |
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Inclusion Criteria:
Exclusion Criteria:
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|
| Conventional strength training | Other | Conventional strength training with rubber bands in knee flexion- and extension, additionally hip abduction- and adduction. |
|
| At baseline and 10 weeks follow up |
| Change in functional capacity | 30m pace walk | At baseline and 10 weeks follow up |
| Change in functional capacity | 9 step stair climb test | At baseline and 10 weeks follow up |