Modalities 2 Flashcards
Conduction
- refers to the gain or loss of heat resulting from direct contact between two materials at different temp
- heat is conducted from a material of higher temp to one of lower temp. heat transfer cont. until the temp and speed of molecular movement of both materials become equal
-EX: hot pack, cold pack, paraffin, ice massage and cryo cuff
Convection
- gain or loss of heat resulting from air or water moving in a constant motion across the body. Since the thermal agent is in motion and new parts of the agent are constantly coming into contact with the target area, heating by convection is capable of transferring large amounts of heat
- EX: fluidotherapy, hot whirlpool, cold whirlpool
Conversion
- refers to heating that occurs when nonthermal energy is absorbed into tissue and transformed into heat
- the rate of heat transfer with conversion is determined by the power of the energy source
- Heat transfer does not require direct contact between the thermal agent and the target areas, however, it does require a medium that allows transmission of the particular type of energy
- In the case of US, the medium may be gel, lotion or water
- EX: diathermy and US
Evaporation
- refers to the transfer of heat that occurs as a liquid absorbs energy and changes form into a vapor
- in the case of a vapocoolant spray, the liquid spray is applied to a patient’s body
- the vapocoolant spray is then heated by the warmer skin of the body, causing the liquid to change into vapor
Radiation
- refers to the direct transfer of heat from a radiation energy source of higher temp to one of cooler temp
- in order for heating by radiation to occur, there must be a difference in temp between the energy source and the target area
- this difference must exist without the energy source being in direct contact with the target area
- the rate of heat transfer will be influenced by a number of factors including the intensity and size of the energy source, the target area, the angle of the radiation in relation to the target area, and the distance between the energy source and the target area
- Ex: infrared lamp, laser, UV light
Hydrotherapy
THerapeutic Effects
- decr abnormal tone
- incr blood flow
- incr core temp
- Pain relief
- relaxation
- vasodilation
- wound debridement
Hydrotherapy
indications
- arthritis
- burn care
- edema
- decr ROM
- desensitization of residual limb
- joint stiffness
- muscle spasm
- muscle strain
- Pain
- Sprain
- Wound care
Hydrotherapy
- Contraindications
- advanced cardiovascular or pulmonary disease
- active bleeding
- diminished sensation
- gangrene
- impaired circulation
- incontinence
- maceration
- Peripheral vascular disease
- Renal infection
- Severe infection
- severe mental disorders
Hydrotherapy
Treatment temp Guidelines
- 32-79deg F
Acute inflammation of distal extremities
Hydrotherapy
Treatment temp Guidelines
- 79-92 deg F
exercise
Hydrotherapy
Treatment temp Guidelines
- 92-96 deg F
Wound care, spasticity
Hydrotherapy
Treatment temp Guidelines
- 96-98 deg F
Cardiopulmonary compromise, tx of burns
Hydrotherapy
Treatment temp Guidelines
– 99-104 deg F
- pain management
Hydrotherapy
Treatment temp Guidelines
– 104-110 deg F
Chronic rheumatoid or osteoarthritis, incr ROM
extremity tank
- used for a distal upper or lower extremity
- approx dimensions for an extremity tank are a depth of 18-24 in, a length 28-32 in and a width of 15 in
lowboy tank
- used for larger parts of the extremities and permits long sitting with water up to the midthoracic level
- approx dimensions are a depth of 18 in a length of 52-65 and a width of 24 in
highboy tank
- used for larger parts of the extremities and the trunk
- this tank permits sitting in chest-high water with the hips and knees flexed
- approx dimensions for the highboy tank are a depth of 28 in, a length of 36-48 in and a width of 20-24 in
hubbard tank
- used for full-body immersion
- approx dimensions for the Hubbard tank are a depth of four feet, a length of 8 feet and a width of 6 feet
- contraindications specific to full-body immersion include unstable BP and incontinence
- the temp should not exceed 100 deg F
therapeutic pool
- used for exercising in a water medium
- the temp should range from 79-97 deg F depending on pt age, health status and goals
Whirlpool
- consists of a tank that holds water with an attached motor,, called a turbine, that provides agitation and aeration to create the “whirlpool effect”
- water temp should be selected based on the patient’s diagnosis and goals.
- Tx time ranges from 10-30 min
- exercises can be performed during whirlpool tx as indicated
- tank should be thoroughly clean after each use with a disinfectant and antibacterial agent
contrast bath
- Utilizes alternating heat and cold in order to decr edema in a distal extremity
- the alternating vasodilation and vasoconstriction is theorized to allow the benefits of heat, such as decr pain and incr flexibility while avoiding the risk of incr edema
- provides good contact over irregularly shaped area, allows for movement during tx and assists with pain management
- ## limitations include potential intolerance to cold, dependent positioning, and a lack of credible research supporting the efficacy of contrast baths
Procedure for contrast bath
- tx should begin with the pt’s distal extremity immersed in the hot bath with the temp between 104-106 deg F for 3-4 minutes
- the pt should then place the distal extremity into the cold bath with a temp between 50-60 deg F for one minute
- the pt should then repeat this hot/cold sequence for 25- 30 minutes
- The degree of temp increase desired often determines whether the tx ends in the hot or cold water
Massage
- Therapeutic Effects
- altered pain transmission
- decr anxiety and tension
- decr muscle atrophy
- decr muscle spasm
- facilitate healing
- improved circulation
- increased lymphatic circulation
- loosen adhesion
- reduction of edema
- relaxation
- removal of metabolic waste
- stimulate reflexive effects
Massage Indications
- adhesion
- bursitis
- decr ROM
- edema
- intermittent claudication
- lactic acid excess
- migraine or HA
- muscle spasm and cramping
- pain
- Raynaud’s syndrome
- Scar tissue
- tendonitis
- trigger point