Static vs PEMF

The strength of the magnetic fields needed for the problem at hand will vary depending on whether they are static fields versus PEMFs. The research available provides some guidance for what has been evaluated.  There is little guidance for what has not been evaluated.  As stated in other parts of this web site, there are physical lower and upper limits to the use of static magnetic fields. It is not known what the lower limits are for time-varied fields.  Time-varied fields have additional complexities in voltage, current and currents generated in the tissues.

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The following are some results from the use of bipolar magnetic systems on some specific health conditions:

Condition	B (mT) *	Duration of Treatments	Number of Treatments
Arteriosclerosis	40	30mins	15
Chronic Bronchitis	30	40mins	10
Chr. Bronchitis Kids	10-30	3 hrs	30
Neuritis	35 (ferrites)	10-20 min	10
Endometriosis	25	6-12 hrs	3-4 mos
Periodontitis	50 (ferrites)	2x/day	weeks
Gingivitis	25-40	Variable	12-25
Lumbar Osteoarthritis	33	30m-6hrs	Individualize
Rheumatoid Arthritis	30	30mins	15-20
Legg-Perthes Disorder	20	24 hrs	40 days
Aseptic  Necrosis	40	3-6 hrs	2-6 mos
Dermatolgic Conditions	35	10 hrs	15-20
Fractures	10-15	24 hrs	4 wks
	* 1 mT=10 Gauss

As can be seen from the table above, the typical range of strength for the magnets study is between 10 and 50 milliTesla (100-500 Gauss). Durations of treatments varied between 10 minutes to 24 hours, with a number of treatments varying between 10 sessions spaced over several weeks up to six months, depending on the condition. This clearly indicates the condition needs to be individualized, as does the individual being treated. It should be recognized that most of these were often part of research studies. Longer-term treatment may be required depending on the condition being treated.  Home care versus a professional setting would more easily allow longer-term use. The use of these higher intensity field strengths allows for a higher dose to be delivered at the target tissues. In many cases more than one magnet would be required if the problem extended over a larger area or multiple levels. Lower field strengths than those above could still be effective with long-term use.

Acupuncture point magnets can vary from 500 Gauss to over 3000 Gauss. For 10 to 20 minute treatments higher dose magnets would be better.  If they are to be worn for extended periods of time, for example for smoking cessation, small, bead-like magnets of about 500 Gauss would suffice. It would not make sense to use magnets over very deep acupuncture points.  They are typically used over points that are within 5-10 mm of the skin surface.

Practically speaking, your acupuncture points would require much smaller magnets, with accordingly small tape to adhere them.  Magnets are available that are contained within a spiral pin attached to a small piece of adhesive which can be retained more easily in the ear. Magnetic strips may be used over meridians, for variable lengths.

Field strengths are naturally limited by the materials available. Flexible, rubberized magnetic attachments are usually limited in strength between 500-1000 Gauss. Individual block, cylinder and flat circular magnets may vary in strength from 500-10,000 Gauss or more. The greater the strength the higher the cost.

In the table below are some examples of other conditions studied with either static/DC fields alone or compared to various TMFs with condition studied, field strength, type of field, frequency/ies used, duration of treatment and number of treatments:

Diagnosis	Field (mT) *	Type of field	Hz	Duration in mins	# treatments
Hypertension	16	static	—	45′	10
Osteochondritis, cervical Vascular flow	10-30 0.3-1.5	static pulsed	—, 80 Hz (rect..5ms)	10’	30
Asthma, bronchial	15-35	static	—	25′	10-15
Lung tuberculosis	21	static	—	20′	30
Lung cancers	20-25	static	—	3-5′	30
Duodenal ulcers	35	static	—	15′	20
Acute pancreatitis	36	static	__	24 hours	25 d.
Inflammatory diseases distal colon & rectum	40	static	—	20′	15-20
Postradiation proctitis, cystitis	40	static	—	30′	10
Spinal cord injuries – various origin	40-70	static	—	60′	1-3 x daily; months
Polyradiculoneuritis in children	2.8	static	—	10′-15′	10
Gliomas IIIo and IVo	25-250	static	—	30′	10
Cerebrovascular atherosclerosis & cervical OA	30-40	static	—	20’	10-15
Cervical OA	10-40	static	—	15-20’	10-20
RA	15-23	static	—	30′	10-20
RA	15-35	static	—	10’	10-20
Fractures, long bones	5-10 20-35 5-10 20-50 0.5-1.5	static static sinusoidal sinusoidal pulsed	—	30-60’ 15-30’ 30-60’ 15-30 3-4hrs	30
Lumbar spine surgery	35-50	static	—	30-45’	10-20
Fractures	5-10	static	—	30′
Fractures, post surgery care	15,20; 50	static	Exp.; Patients	10′; 10′	10; 10
Complicated fractures	25-50	static	—	15′	10-30
Non-healing fractures	50	static	—	20′	15-30
Fractures	50	static	—	20′	15-30
Burns	5-15; 22	static; static	—; —	5′-15′ 1-2h	15-20; 15-20
Burns	35; 35	static; sinusoidal	—; 50Hz	30′; 30′	10; 10
Preoperative preparation in phlebectomies	40-50	Static	—	5′-20′	15-20
Amputation stumps	50; 16	static; sinusoidal	—; 50Hz	15′; 15′	20; 20
Various diseases	5-30	Static	—	5′-25′	various
Various diseases	5; 16	static; sinusoidal	—; 50Hz	15′; 15′	6-20; 6-20
Carpal tunnel syndrome	20-24	static	—	20′	20
Periodontitis	32 17.5	static sinusoidal	— 50hz	30-60’ 10’	15
Endometritis, post partum	40	static	—	10′	10
Cervicitis	40	static	—	15′	5
Mammary fissures, lactostasis, episiotomy	20	static	—	15′	4-8
Gynecology	40	static	—	10’	8-14days
Endometritis, post-partum	40	static	—	10’	8-10
Vulvovaginitis, children	40	static	—	10’	8-10days
Endometriosis	40	static	—	10’	3 days
Endometriosis	40	static	—	10’	30
Exocervix erosions	40	static	—	10’	8-30
Dysmenorrhea	40	static	—	10’	10-20
Gynecology, general	25-35	static	—	variable	variable
Pelvic adhesions	25-35	static	—	variable	20-25
Endometriosis	25-35	static	—	variable	variable
Endometriosis	25-40	static	—	20′	20-24
Chronic Adnexitis, exacerbation	25-40	static	—	15′-20	15-20
Uterus involution after delivery	40	static	—	10′-15′	4-6
Retinitis pigmentosa	15-20	static	—	5′-10′	20
Corneal traumas	10-20; 50	static; sinusoidal	—; 50Hz	30′;30′	15;15
Vascular reactivity	10-50; 10-30	static; sinusoidal	—; 50Hz	15′-20′ 15′-20′	1 1
Coagulation, healthy volunteers	20-30; 250; 19	static; static; sinusoidal	—; —; 50Hz; 200Hz	various; 10′,50′ 10′,50′	1; 1; l
Nerve conductivity	10-40	static	—	up to 10′	1
EEG, healthy volunteers	up to 150	static	—	various	1
* 1 mT=10 Gauss

For time-varied magnetic fields, devices are available for treatment at picoTesla to kiloGauss levels, depending on the system used.

Below is a table of studies done on some conditions and the various fields used by condition studied, field strength, type of field, frequency/ies used, duration of treatment and number of treatments:

Diagnosis	Field		Exposure
	B(mT) *	Type	Frequency/ies Other	Duration of Treatments	Number of Treatments
AO, EO	2.5	Puls; Half Sinus	100Hz	20′	15
VWF	25	Sinus	50 Hz	10′	10
Ac. Insufficiency Axill./subclavian veins	50	Sinus	50 Hz	20′	30
IHD	20	sinus	50 Hz	15′	15
IHD, hypertension	1.5	Puls; Half Sinus	10 Hz	20′	10
IHD, hypertension	35; 16	sinus; sinus	50 Hz; 50 Hz	20′; 20′	18; 18
Hypertension	10	Puls; Half Sinus	10 Hz	20′	20
Asthma,bronchial	25-30	Sinus	50 Hz	20′	15-20
Chronic bronchitis	9; 35	sinus; sinus	50Hz; 50Hz	1 hour; 20′	20
Chronic lunginflammatory processes	35; 35; 35	sinus; puls; inter.	50Hz; 50Hz; 50 Hz	10′; 10′; 10′	20; 20; 20
Lung tuberculosis	40	Sinus	50 Hz	20	100 +
Gastricand duodenal ulcers	26	Sinus	50 Hz	20′	20
Gastricand duodenal ulcers	35	Sinus	50 Hz	12′	20
Gastricand duodenal ulcers, chronic gastritis	20-35	Sinus	50 Hz	20′	20
Gastricand duodenal ulcers	40	Sinus	50 Hz	10′	15
Chronic pancreatitis	17.5; 24; 35	sinus; inter.; puls	50Hz; 5 Hz; 50Hz	20′; 20′; 20′	15; 15; 15
Vasomotor dystoniacerebral vasospasm, Strep.Neuroinfection	10-20	Sinus	50 Hz	10′-20′	15-20
Strokes	9;25	sinus	50 Hz	6′-15′	10-15
Strokes, healthy people	5	puls; rect.	50 Hz	30′	1
Neuroinfections	10-20	Sin	50 Hz	5-10′	12
Migraine	3-4	Puls	2Hz;	10′-15′	15
Migraine,  MS	?	Puls	10 Hz	15′	20
MS	5	Puls	2.5Hz	20′	20
MS	5; 70-80	puls; puls	12Hz; 15Hz	15′; 20′	1.-3.; 4.-15
Spinal degen.diseases, ASC, stp., Cardiosurg., spinal cord trauma	25	Puls	50Hz	25′-30′	10-15
Inguinalnerve injuries	2.8 – 5.6	sinus	50Hz	10′-15′	12-15
Peripheral n. disorders – various	23; 23	sinus; Puls; Half Sinus	50Hz; 50Hz	15′-30′ 15-30′	10-12 10-12
Scleroderma complications	35	Sinus	50 Hz	10	15-20
Meniere’s syndrome	10	Sinus	50 Hz	15′; twice daily	10 days
Lumbarosteoarthritis	10-20	Sin	50 Hz	20′	20-25
Osteoarthritis Lumbar/Th Spine	6	Puls	10Hz, 100 Hz	20′	15-20
Lumbarspondylitis, knee arthritis	4-7, 3-8	puls, puls	15 Hz, 50 Hz	20′, 15′	15-20, 15-20
Degenerative & Inflammatory dis.	3-4	Puls	100Hz	20′	15-20
Arrhythmias	9-19	Sinus	50 Hz	various	10-15
Arrhythmias	up to 30	Sinus	50 Hz	see above (P7)	15-18
Fractures	10	sinus	50 Hz	20′	14
Atopic eczema	30	Puls; Half Sinus	50Hz	10′	10-15
Allergic dermatoses, psoriatic arthritis	15-23	sinus	50Hz	10′-15′	10-15
Psoriasis	20-30	sinus	50 Hz	15′	15-20
Leg ulcers	9.5; 4.5	puls; puls	5Hz; 40Hz	12′; 12′	75; 75
Leg ulcers	40	sinus	50 Hz	15′-20′	20
Open fracturestouching joints	35-50	sinus	50 Hz	15′	10-15
Purulent wounds,osteomyelitis	11-17; 25-30	sinus; sinus	100Hz; 150Hz	25′-30′; 25′-30′	20 20
Gunshot wounds explosion wnds	20-30	Puls	20-50Hz; 100-150Hz	20′-40′; 20′-40′	20; 20
Plastic surgeryafter burns	20	sinus	50Hz	20′	15-20
Burns	35	sinus	50 Hz	30′	10
Amputation stumps	16	sinus	50 Hz	15′-20′	20-30
Fractures	30-40	sinus	50 Hz	20′	10-15
Various diseases	5	Puls; rectified	20Hz	15′	20
Sudeck’s syndrome	5-6	Puls	5-10 Hz	15′	up to 20
Dupuytren’s contracture	45-53	sinus	50Hz	15′-20′	5-40
Reproductive functiondisturbances	30-45	Sinus	50Hz	15′-20′	20
Gyne inflammation	1.5	Sinus	50Hz	not described
Bartholin glandinflammation	20-50	Sinus	50Hz	5′-7′	10-15
Chronic salpingo-oophoritis, Myomas	20-40	Sinus	50 Hz	5′-7′	10-15
Chronic Endometritis, myomas	20	Sinus	50Hz	5′-7′	10
Odontogenous osteomyelitis	15-30	Sinus	50Hz	10′	5-7
Mandibular fractures	5-15	Sinus	50Hz	10′-15′	20
Mandibular fractures	22	Puls; Half Sinus	50 Hz	20′	15
Allergic rhinitis	30	sinus	50Hz	3′-6′	10
Sinusitis in children	91	Puls; Half Sinus	var.	20′	6-20
Functional larynxdiseases	25	sinus	50Hz	20′	15-20
Retinal Degenerations in children	10	Sinus	50Hz	7′-8′	10-15
Senile Macular degenerations	91	Puls; Half Sinus	Var.freq’s;	20′	15
Retinaldystrophias	8.5	Puls; Half Sinus	50Hz	10′	7-10
Atrophy, optic nerve	10	Sinus	50 Hz	10′	10-15
Corneal perforations	10	Sinus	50 Hz	10′	10-15
Postsurgical complications	5-10	Sinus	50Hz	3′-8′	10
Infected corneal erosions	5	Sinus	50Hz	9′	up to 10
Glaucomasimplex	8-8.5	Puls	50Hz; rect., imp.02 sec.	7′	10
Circulation, ECG,healthy volunteers	35	Puls; Half Sinus	20 Hz	20′	1
Capillary reactions	10	Puls; Half Sinus	20 Hz	20′	1
Circulation, healthy persons	8	Puls; Half Sinus	2 Hz; 50Hz	20′	1
Circulation, coagulation, EEG,healthy volunteers	5	Puls; rectified	50 Hz	30′	1
Immunologic, hematologic parameters in hypertensives	5	Puls; Half Sinus	12.5Hz.	20′	1
Drivers,fatigue	50	Puls	2 Hz	10′	1
Nerve conductivity, healthy persons	10	Puls	5 Hz; 50Hz	20′; 20′	1; 10
EEG,healthy volunteers	5	Puls	2 Hz; 50Hz	15′	1
EEG,skin receptors	35	Sinus	50 Hz	various	var.
Intestinal motility	10	Puls; Half Sinus	50Hz.	20′	1
Muscle fatigue	10-50	Sinus	50Hz	20′	1;1
* 1 mT=10 Gauss

As can be again seen from the table above, the typical range of strengths/intensities used for the TMF magnet studies seen here is wide – most in the mT level. There are other valid studies at less than 1 mT that are beneficial for similar conditions, e.g., arthritis. Durations of treatment and number of sessions varied tremendously as well, depending on the condition. Still the treatment durations and number of treatments tested were considerably less than with static magnets. This clearly indicates that the condition present and system used need to be individualized, as does the individual being treated. The array of conditions treated by TMFs also expanded considerably, although there was still an overlap in many of the kinds of conditions treated.