Aquatic PT Flashcards
What are the main controlling variables of buoyancy available in aquatic PT?
- Position or direction of movement in the water
- Water depth
- Lever arm length
- Flotation or weighted equipment use
What 2 movements are buoyancy assisted, and which is resisted?
Assisted: - Movement towards surface - Movements parallel to bottom of pool Resisted: - Movements towards bottom of pool
How does shallow water affect resistance/ support?
Less support.
How does deeper water affect resistance/ support?
- More support
- Increased frontal resistance
What 4 factors alter resistance?
- Velocity of movement
- Surface area
- Water depth
- Direction of movement
Does peripheral blood flow increase or decrease with an increased immersion depth?
Decrease
Does vital capacity increase or decrease with an increased immersion depth?
Decrease
Does heart volume increase or decrease with an increased immersion depth?
Increase
Does intrapulmonary blood volume increase or decrease with an increased immersion depth?
Increase
Does right atrial pressure increase or decrease with an increased immersion depth?
Increase
Does left ventricular end-diastolic volume increase or decrease with an increased immersion depth?
Increase
Does stroke volume increase or decrease with an increased immersion depth?
Increase
Does cardiac output increase or decrease with an increased immersion depth?
Increase
Does heart rate increase or decrease with an increased immersion depth?
Decreases or is unchanged
What is the major change physiologically between land and water therapy?
- Increased cardiac loading due to hydrostatic pressure