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EPT II > PEMF > Flashcards

PEMF Flashcards

1
Q

High frequency PEMF

A

Pulsed SWD 27.12 MHz

Pulsed MW 2.45-3.95 GHz

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2
Q

Low power pulsed HF energy

A

Pulsed SWD with low peak power of 15W

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3
Q

Low frequency PEMF

A

Low frequency 50-60Hz

Low field strength 1-100 Gauss

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4
Q

Magnetic therapy

A

Static magnetic therapy or LF PEMF

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5
Q

Continue EME (electromagnetic energy)

A

Have thermal effect

E.g. Shortwave diathermy

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6
Q

PEME

A

Athermal effect

Can work with ice pack or hot pack to give thermal effect manually

Ice pack&raquo_space; acute
Hot pack&raquo_space; chronic
(Doesnt matter with moisture)

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7
Q

Different types of electromagnetism

A

Electric field
Magnetic field

Can make use of one or both field at the same time

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8
Q

PEMF

A

Pulsed electromagnetic field

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9
Q

Production of low frequency PEMF

A

Flow of 50 Hz AC through an induction coil
» Produced a pulsed magnetic field at a frequency of 50 Hz

The machine can futher modify the frequency to produce range of magnetic fields of 1-50 Hz
» Distance makes different so make sure locate the Rx area in the middle (most powerful magnetic field)

Electric field is eliminated by the faradic screen

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10
Q

Faradic screen

A

Use a current of opposite direction to eliminate the AC

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11
Q

Magnetopulse

A

Device used to produce magnetic field

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12
Q

SI unit

A

International system of unit

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13
Q

SI unit of PEMF

A

Measured in field strength
= force acting per unit length of a conductor which carries unit current

T = Tesla (NA-1m-1)
1T = 10000 Gauss or 1000 mT
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14
Q

Strength of magnetic field

A

Earth’s natural magnetic field (Geomagnetism)
= 0.35-0.7G (Gauss)
» affect human biological clock

PEMF used in PT:

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15
Q

General concepts of PEMF

A

Human tissue is transparent to magnetic field

Magnetic fields penetrate most metals except Cu and Al

Varying magnetic field induces low frequency electric current in body’s conductors

Different tissues respond to different frequency and intensity

No subjective feeling

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16
Q

Clinical Applicaions of PEMF

A 
Musculoskeletal injuries
Arthritis
Wound healing
Bone healing
Peripheral vascular disease
Nerve injuries
17
Q

Therapeutic effects of PEMF

|&raquo_space; Reduces inflammation, reduce chronic swelling

A

Increase/decrease blood supply to body & legs by changing the diameter of blood vessels (depends on frequentlcy)

Increase the differential leukocyte counts when inflammation occurs

Decrease in E-coli bacteria count

18
Q

Therapeutic effects of PEMF

|&raquo_space; Reduce pain that is caused by an acute or chronic oxygen deficiency with accumulation of metabolite

A

Actions:

New blood vessels (re-vascularization) form where needed

Increase in oxygen partial pressure in terminal tissues

Increase local perfusion (vascular permeability) and velocity of capillary flow

Increased oxygen use by all cells in areas treated with PEMF

EPT II (2 decks)

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