Electrophysical agents: Heat & Cold

50 %
50 %
Information about Electrophysical agents: Heat & Cold
Education

Published on August 19, 2008

Author: physioactive

Source: authorstream.com

Heat & Cold : Heat & Cold Dr Shea Palmer (script) Mr Chee-Wee Tan (narration) Thermal Agents : Thermal Agents Effects of adding energy to matter: 1. *  kinetic energy (& vice versa) 2. *  temperature (& vice versa) 3. Expansion of material (or compression) 4. Change in state * = clinically important effects Thermal energy is transferred by: : Thermal energy is transferred by: Conduction - kinetic motion between atoms & molecules (solids - hot pack) Convection - movement of molecules/ atoms from one place to another (liquids/ gases - hot/cold baths, sauna) Radiation - heat converted to electromagnetic radiation (Infra-Red, Ultraviolet Radiation, Short-wave Diathermy) Safety Testing : Safety Testing MUST ENSURE NORMAL SENSORY FUNCTION - DANGER OF BURNS 2 test-tubes (40-45oC & 15-20oC) Instruct subject to close eyes Randomly apply to treatment area and ask subject to identify which is hot/ cold Therapeutic Heat : Therapeutic Heat Therapeutic Effects of Heat (1) : Therapeutic Effects of Heat (1)  pain - Gate control,  muscle spasm, sedation, counterirritant  muscle tone/spasm possible  muscle strength  healing - optimum is above core temperature  blood flow Therapeutic Effects of Heat (2) : Therapeutic Effects of Heat (2)  ROM -  pain,  spasm,  viscosity,  collagen extensibility Sedation/ psychological/ placebo effects Reflex heating - contralateral/ distal areas Slide 8: Effects of Heating From Low & Reed (2000) Heat - Application Methods (1) : Heat - Application Methods (1) 1. Heat Packs Mud absorbs hot water. Wrap in towelling before application - 8min to max heat (20-30min Tx) Towelling on top to insulate Check after 5 minutes Hot water bottles for home application Heat - Application Methods (2) : Heat - Application Methods (2) 2. Paraffin Wax (good for extremities) Temp = 42-50oC Dip & Wrap: In 1 sec/ out 2-3 sec/ in 1 sec… (repeat x6-12). Wrap in plastic bag & towelling/ elevate - 15min Dip & Stay: In & out as above, then in for 15-20min ( temperatures) - elevation not possible. 3. Hydrotherapy 36-41oC Paraffin Wax Bath : Paraffin Wax Bath Heat - Application Methods (3) : Heat - Application Methods (3) 4. Contrast Baths Alternate hot & cold. Marked hyperaemia & sensory stimulation (hot & cold receptors stimulated++).  pain (Gate theory) & swelling (vasoconstiction/ vasodilation). 2 baths (40-45oC & 15-20oC). Start & finish in hot (3-4min hot & 1min cold). 10-25min total. Contraindications to Heat : Contraindications to Heat Lack of thermal sensitivity Impaired circulation Recent bleeding/ haemorrhage Devitalised skin (e.g. after deep X-ray treatment) Open wounds Skin conditions (e.g. skin carcinoma, acute dermatitis) Cardiovascular impairment (if large body part to be treated) Damaged/ infected tissues Kitchen (2002) pp.132 Therapeutic Cold : Therapeutic Cold Therapeutic Effects of Cold (1) : Therapeutic Effects of Cold (1) Acute injuries -  blood flow, pain, metabolism and secondary cell death  pain - Gate theory,  hypertonicity,  nerve conduction (A fibres), ‘counterirritation’  muscle spasm - a\a  spasticity - reflex inhibition from skin receptors,  viscosity ( stretch reflex), desensitises muscle spindle if prolonged Therapeutic Effects of Cold (2) : Therapeutic Effects of Cold (2)  swelling -  blood flow / exudate  muscle strength - brief stimulation facilitates contraction Slide 17: Effects of Cooling From Low & Reed (2000) Cold - Application Methods (1) : Cold - Application Methods (1) 1. Ice Packs Best application is crushed ice in damp towelling (ACPSM 1998) Alternatively ice in plastic bag with damp towel between it & skin Further towelling on top to insulate Check after 5 minutes Apply for 20-30min every 2hrs (ACPSM 1998) Cold - Application Methods (2) : Cold - Application Methods (2) 2. Ice Cube Massage Ice cube in paper towel - slow circular movement until numbs (5-10min) For muscle stimulation use short strokes over dermatome 3. Immersion 16-18oC for 15-20min If lower temperature used - intermittent immersion Contraindications to Cold (1) : Contraindications to Cold (1) Arteriosclerosis Peripheral Vascular Disease Vasospasm e.g. Raynaud’s disease Cryoglobinanaemia (may be associated with RA and systemic lupus erythematosus) Cold urticaria (histamine release leads to weal formation, itching, erythema, decreased blood pressure and increased heart rate. Contraindications to Cold (2) : Contraindications to Cold (2) Cardiovascular impairment (if large body part to be treated) Lack of thermal sensitivity Skin hypersensitivity Adverse psychological factors e.g. strong dislike of cold Kitchen (2002) pp.135 Summary : Summary Very common modalities with powerful physiological and therapeutic effects Home treatment advantageous Directed reading details evidence for those effects Many other electro-physical modalities claim to heat the tissues, thereby eliciting similar effects

Add a comment

Related presentations

Related pages

Electrophysical agents Heat & Cold - YouTube

Electrophysical agents Heat & Cold Chee-Wee Tan. ... Electrophysical agents Shortwave Diathermy - Duration: 14:02. by Chee-Wee Tan 1,059 views.
Read more

Electrophysical - Physiopedia, universal access to ...

Electrophysical. Search Personal tools. Log in; Request account; Content. Articles ... Physical Agents . Heat Therapy; Cold Therapy; Orthotics. Cervical ...
Read more

ELECTROPHYSICAL AGENTS - Contraindications And Precautions ...

ELECTROPHYSICAL AGENTS - Contraindications And Precautions: ... LILT, light, heat, cold, cryotherapy, electrical stimulation, TENS, EMS, ...
Read more

Electrophysical Agents II: November 25, 2014 Review and ...

Electrophysical Agents II: ... Principles of Thermal Agents Using therapeutic heat or cold on human tissues ... Review and Clinical Update Course
Read more

Chapter 16 Superficial Thermal Modalities

Chapter 16 Superficial heat and cold have been used for centuries to manage soft tissue and joint injuries with specific goals of relieving pain,
Read more

GUIDELINES

GUIDELINES FOR THE CLINICAL USE OF ELECTROPHYSICAL AGENTS 5 Thermal sensitivity Test patient’s ability to discriminate hot from cold objects at site to ...
Read more

ELECTROPHYSICAL AGENTS - Contraindications and Precautions ...

ELECTROPHYSICAL AGENTS - Contraindications and Precautions: An Evidence-Based Approach to Clinical Decision Making in Physical Therapy (62:5, 2010 )
Read more

pty2epa electrophysical agents , Subjects, La Trobe University

ELECTROPHYSICAL AGENTS. PTY2EPA. Not currently offered. Credit points: 15. ... The syllabus covers therapeutic heat and cold, electrical stimulation, ...
Read more

POD316 Sports Medicine (and Electrophysical Agents) (8)

POD316 Sports Medicine (and Electrophysical Agents) (8) CSU Discipline Area: Allied Health ... heat and cold therapy, electrophysical therapies, ...
Read more