Aquatic Therapy Flashcards
What does Archimedes Principle state?
An immersed body experiences an upward force equal to the weight of the fluid it displaced
What is the Specific Gravity of WATER?
1.0
What is the Specific Gravity of the BODY?
0.974
If Specific Gravity is LESS than water, what happens?
It floats
Buoyancy depends on object _______
density
Denser objects tend to ______
sink
Lower bone density _____ buoyancy
increases
Subcutaneous fat _____ buoyancy
increases
Increased air in the lungs _____ buoyancy
increases
The upward force of buoyancy causes an _____ of the joints
offloading
The deeper you are immersed in the water, the less…
pressure on the joints
What are the population groups that benefit from aquatic therapy? (4)
(PCOJ)
- Pregnancy
- Chronic Pain
- Obesity
- Joint Replacement (weight bearing restrictions)
If you are immersed to the line of your ASIS, you are offloading ____%
50%
If you are immersed to the line of your neck, you are offloading ___%
90%
Buoyancy of water can ___ AND ___ exercise
assist; restrict
Viscosity is the ____ friction in liquids secondary to _____ forces b/w molecules
internal; cohesive
Resistance from viscosity is ____ to velocity
proportional
Increasing your movement speed in the water will ____ resistance
increase
Increasing your surface area in the water will _____ resistance
increase
Hydrostatic Pressure is the force exerted on the body by the water due to…
the weight of the fluid
Pressure varies on depth of immersion. Therefore, the deeper/distal the segment is, the ______ in resistance
increase
Surface tension is the force _____ to the surface like a _____
parallel; membrane
____ work is required to break the surface of the water than to exercise under the water
more
Surface tension is influenced by the _____ of the object or the ________.
(ex: bigger versus smaller person and their surface tension)
size, surface area
Adding equipment in the water ____ resistance
increases
Hydrodynamics is fluid in motion; or laminar/turbulent _____
flow
Exercise Considerations for Aquatic Therapy (3)
BAR
- Resistance
- Assistance
- Balance
How can flow aid in aquatic therapy training?
Depending on the jet currents, you can make gait training harder or easier (walking with or against flow)
What are the main factors of aquatic thermodynamics? (6)
- Water
- Temperature
- Air Temperature
- Amount of Body
- Immersed
- Rest vs. Movement
Thermodynamics Heat Transfer of Aquatic Therapy includes (RECC)
- Convection
- Conduction
- Evaporation
- Radiation
Convection of aquatic therapy
person or water moving
Conduction of aquatic therapy
person and water at rest
Evaporation of aquatic therapy
loss of body fluid to environment via sweating
Radiation of aquatic therapy
exchange of electromagnetic energy b/w warmer body surface and cooler environment
Water Temperature factors include the effects of ____ and _____ (getting in and out of the water) since water does have one of the highest specific heat of all substances
convection and conduction
Air Temperature factors include the effects of ______ and _______
evaporation and radiation
What is the recommended air temperature range for aquatic therapy?
65-80F
What is the recommended air humidity range for aquatic therapy?
50-65F
Exercise Considerations for Thermodynamics include the ______ of the pool
temperature
What are population groups to keep in mind for thermodynamics of aquatic therapy?
- SCI/TBI
- MS
- Arthritis
Buoyancy vs. Gravity is important to consider because if they are ____ and _____ the person will be upright, whereas if they are different there will be a ____ momentum
equal and opposite; rotational
Drag Force is the combined influence of (5)
buoyancy, viscosity, hydrostatic pressure, surface tension and flow
Drag force is the resistance to
movement
Drag force changes based on (5)
- Surface area moving through water
- Speed of movement in water
- Location of movement in water/breaking surface
- Quiet, laminar or turbulent flow
- Motion against buoyancy
Vasodilation occurs at >___F and vasoconstriction occurs at < ___F
(hint: year mom got pregnant with me and year dad was a senior in high school)
~96F; ~81F
Dive Reflex occurs when the whole body except the had is
immersed
Dive Reflex causes (3)
- Bradycardia
- Peripheral Vasoconstriction
- Blood Shunting to Vital Organs*
*only if water is lower than body temp
Warm/hot water ____ HR
increases
___BP (depends on dive reflex) and ___CO occur with warm/hot water
increased; increased
Warm water is ____ while cold water is _____
relaxing; stimulating
Lung expansion may be limited by hydrostatic pressure and increased _________ circulation
body center
Max Oxygen Uptake ____ during water exercise
decreases
Respiratory Rate ____ during water exercise
increases
Water exercise _____ ventilation-perfusion ratio
improves
Diuresis during water exercise causes ____ urine output due to decreased _____ pooling which causes centralization of blood volume
increased; venous
What is a population you need to be highly considerate of with diuresis?
Those with catheters and bags
What are some secondary temperature effects of water on the muscular system?
- Increased muscular blood flow (warm water)
2. Induce analgesia/break spasm cycle
What are the contraindications of aquatic therapy? (11)
- Open Wounds
- Incontinence*
- Skin Infection
- Menstruation w/o internal protection
- Isolation precautions
- Uncontrolled seizures
- Cardiac precautions
- Acute fever
- Upper Respiratory Infection
- Severe Mental Disorders
- Severe Pulmonary
What are the precautions of aquatic therapy? (7)
- Compromised CV status
- MS
- Ostomies
- G-Tubes/suprapubic caths
- Autonomic Dysreflexia
- Orthostatic Hypotension
- Medically Controlled Seizure Disorder
What are the clinical applications of aquatic therapy?
- Promotes relaxation
- Improved circulation
- Restored Mobility
- Strengthening
- Gait Training with decreased WB
- Stimulates Vestibular System
- Facilitates Sleep
- Promotes Oral Motor Control
- Facilitates Coordination
- Functional Training
- Promotes Alertness
- Retrains Perception
- Normalizes Muscle Tone
- Improves Emotional Wellbeing
What is the range of depth for traditional pools?
3-4’ to 8-10 (group therapy)
Pool Care & Safety Considerations
- Maintenance required to reduce risk of infections
- Slip resistance walking surfaces
- Safety rules
- Emergency procedures (CPR certified staff and >1 person)
Additional Safety Considerations include patient education of taking ____, using the _____, assistive devices and clothing
medications; bathroom
What are some challenges of aquatic therapy?
- Compliance
- Accessibility
- Referrals, Environment
- Cost-Effectiveness
- Complexity of Patients
- Coordination of After-Care
What are some populations to consider for aquatic therapy?
- Pregnancy
- Dysfunction of soft tissue/bone
- Acute Injury
- Chronic Pain
- Neuro
- Developmental Disabilities
- Balance
- Post Surgical
- Deconditioned
What are some specific modalities of water exercise that require additional training?
- Ai Chi
- Bad Ragaz
- Watsu
- Aqua Running