Aquatic Power Training
Knee Osteoarthritis (OA) accounts for a significant proportion of mobility limitations and is one of the most disabling problems facing the growing population of older adults. The purpose of this research is to reduce disablement of older adults with symptomatic knee osteoarthritis.
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Optimizing Mobility in Older Adults With Knee Osteoarthritis: Aquatic Power Training|
- 400 meter walk time [ Time Frame: 0, 6, and 12 weeks ] [ Designated as safety issue: No ]
- Lower limb function (LLFDI) [ Time Frame: 0, 6, and 12 weeks ] [ Designated as safety issue: No ]
- Quality of life (KOOS) [ Time Frame: 0, 6, and 12 weeks ] [ Designated as safety issue: No ]
- Knee osteoarthritis pain (KOOS pain scores) [ Time Frame: 0 and 6 weeks ] [ Designated as safety issue: No ]
- Vastus lateralis muscle bulk [ Time Frame: 0, 2, 6, and 12 weeks ] [ Designated as safety issue: No ]
|Study Start Date:||April 2009|
|Study Completion Date:||December 2009|
|Primary Completion Date:||December 2009 (Final data collection date for primary outcome measure)|
Aquatic Power Training
Other: Aquatic Power Training
Aquatic power training program with an exercise specialist 2/week for 6 weeks.
Aquatic based training can offer many of the same benefits associated with a land based exercises but water has certain properties that provide a more gentle and welcoming environment for exercising. Buoyancy in water counteracts gravity to support the weight of the subject and decrease the forces put on the joints. Viscosity of water can provide resistance proportional to the effort exerted and with gentle friction enhancing proprioceptive feedback. Immersing in warm water can cause an increase in body temperature due to specific heat and thermal conductivity, which can cause blood vessels to dilate. In addition, hydrostatic forces reduce edema, increasing venous return and healthy circulation. [Prins, 1999]; [Wilder, 1998]
Studies have shown that water based exercise has been proven to significantly decrease pain in people with knee osteoarthritis compared to those in a land based exercise program. [Silva, 2003] In comparing an aquatic physical therapy session to a no intervention group the aquatic program resulted in less pain, improved physical function, quality of life, and strength. [Hinman, 2007]
The purpose of this research study is to determine whether an aquatic therapy program aimed at increasing muscle power will be effective in improving knee symptoms and mobility in men and women with symptomatic knee osteoarthritis.
The purpose of this study is to assess the efficacy of aquatic power training for improving mobility limitations, disability and quality of life in older adults with symptomatic knee OA.
Hypothesis 1: In older adults with symptomatic knee OA, a 6-week aquatic power training intervention will reduce lower limb mobility limitations (400m walk time).
Hypothesis 2: In comparison to baseline measures, at 6-week follow-up, there will be improvements in a) lower limb function (LLFDI), b) quality of life (KOOS Knee QOL),c) knee OA specific pain (KOOS pain) scores, and d) vastus lateralis muscle bulk (thigh muscle). These changes will be sustained at 12 week follow-up.