hydrotherapy Flashcards
hydrodynamic principals
buoyancy rotational forces hydrostatic pressure viscosity thermal energy refraction / reflection surface tension
Relative density of water
1 (RD 1 will float , more will sink)
Factors that increase RD
deflated lungs lean body mass =1.1 spastic tense kyphotic
factors that decrease RD
RD fat =.0
flaccid
relaxed
buoyancy benefits
progress WB
easy handling
no falling
challenges of buoyancy
asymmetrically floating (flaccid)
stabilization
propricpetion
Centre of buoyancy anterior or posterior thorax
posterior
metacentric principle
opposing effect of gravity and buoyancy
pascal law
pressure is exerted equally on all surfaces
benefits of hydrostatic pressure
swelling
venous return
awareness of body increase
challenges of hydrostatic pressure
inc resistance to breath
two ways to alter resistance of water
laminar (movement rate fixed)
turbulent (irregular movement)
types of buoyancy movements
assisted(grade 3/5)
supported (less than 3/5)
resisted (more than 3/5)
physiological effects of immersion at rest
inc venous return
central blood volume, stroke volume and thermo regulating, WOB, accessory breathing mm
decrease in bp and hr, vital capacity
physiological effects of immersion at rest for mm
inc blood supply to mm, in 02 delivery and waste removal, mm relaxation, urine output
decrease in joint compression
