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10 Cards in this Set
- Front
- Back
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Bouyancy Supported
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Work on the surface of the water
Ex: Standing shoulder horizontal abduction |
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Bouyancy ASSISTED
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Buoyancy helps pt complete the exercise,
Ex: shoulder flexion or extension in vertical position |
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Bouyancy Resisted
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Pt has to work through bouyancy
Ex: Shoulder adduction while standing |
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If you are laying supine in the water, does that change the direction of bouyancy?
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Being supine would change the direction in which the buoyancy was working on the body. For example shoulder abduction and adduction would now be buoyancy supported instead of buoyancy assisted or resisted when the pt was upright. Shoulder extension would now be buoyancy resisted, horizontal abduction would be resisted.
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Hydrostatic pressure
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The pressure exerted by the water on a surface.
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Pascal's law
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States that pressure exerted is equal on all surfaces of an object.
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Does hydrostatic pressure increase with the depth of the water?
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Yes
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What are the benefits of hydrostatic pressure?
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Reduces or limits swelling
Assists in venous return Induces bradycardia Centralizes peripheral blood flow (increased CO without increased HR) Exercises are easier in shallow water due to hydrostatic pressure (Aquatic Therapy ppt, slide 7) |
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Viscosity
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Friction occurring between molecules of liquid causing resistance to flow; Resistance from viscosity is proportional to the velocity of the movement through the water.
(Aquatic Therapy ppt, slide 8) |
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How can we use viscosity to increase strength?
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It has 2 ways to increase resistance
Increase speed of movement Increase surface area moving through the water |
