Impulse magnetic-field therapy for insomnia: A double-blind, placebo-controlled study
ABSTRACT This 4-week double-blind, placebo-controlled study assessed the efficacy of impulse magnetic-field therapy for insomnia. One
hundred one patients were randomly assigned to either active treatment (n = 50) or placebo (n = 51) and allocated to one of
three diagnostic groups: (1) sleep latency; (2) interrupted sleep; or (3) nightmares. Efficacy endpoints were intensity of
sleep latency, frequency of interruptions, sleepiness after rising, daytime sleepiness, difficulty with concentration, and
daytime headaches. In the active-treatment group, the values of all criteria were significantly lower at study end (P < .00001).
The placebo group also showed significant symptomatic improvement (P < .05), but the differences between groups were highly
significant (P < .00001). Seventy percent (n = 34) of the patients given active treatment experienced substantial or even
complete relief of their complaints; 24% (n = 12) reported clear improvement; 6% (n = 3) noted a slight improvement. Only
one placebo patient (2%) had very clear relief; 49% (n = 23) reported slight or clear improvement; and 49% (n = 23) saw no
change in their symptoms. No adverse effects of treatment were reported.
Article: Multiple human electrophysiological responses to extremely low frequency pulsed electromagnetic field exposures: A pilot study[show abstract] [hide abstract]
ABSTRACT: This pilot study was conducted to investigate whether multiple electrophysiological activities could be altered when exposed to extremely low frequency pulsed electromagnetic field (PEMF) over a consecutive 5 day period. Our results revealed substantial changes in electro-encephalographic hemispheric asymmetry, observed at the theta band posterior predominance, an increase in the low frequency heart rate variability, changes in the surface skin temperature and skin bioelectric impedance fluctuations in its frequency spectrum. Due to the small sample size these results reveal no solid and conclusive evidence in the possible alterations in electro-physiological responses due to PEMF.Estonian Journal of Engineering 01/2008; 14(2):138-153.