ArticleRevista da Associacao Medica Brasileira (1992)2025
Effect of short-term extremely low-frequency electromagnetic field on respiratory functions.
Article in Revista da Associacao Medica Brasileira (1992), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveExposure to extremely low-frequency electromagnetic fields can cause harmful or beneficial effects on living organisms. The aim of this study was to examine the potential effects of extremely low-frequency electromagnetic fields on respiratory physiology by investigating possible changes in respiratory function parameters during and after short-term extremely low-frequency electromagnetic field exposure.
methodsTwenty Wistar albino rats were included in the study, and these rats were randomly divided into two groups: control and electromagnetic field. A noninvasive head-out plethysmography technique was used to accurately assess lung function in rats. Rats in the electromagnetic field group were exposed to electromagnetic field at a frequency of 50 Hz and a magnetic flux density of 0.3 mT for 2 min. Respiratory function parameters of both groups were recorded in three separate periods before, during and after electromagnetic field exposure. Respiratory rate, respiratory cycle duration, inspiration time, expiration time, tidal volume, minute volume, peak inspiratory flow, and peak expiratory flow were measured in these periods.
resultsThere was no significant difference in the parameters measured before electromagnetic field exposure between the groups. During the electromagnetic field exposure period, the mean respiratory rate measured in the electromagnetic field group was lower compared to the control group data, while the mean respiratory cycle duration, inspiration time, and tidal volume measured in the electromagnetic field group were higher compared to the control group data. There was no significant difference in the parameters measured after electromagnetic field exposure between the groups.
conclusionShort-term extremely low-frequency electromagnetic field exposure decreases respiratory rate and increases respiratory cycle duration, inspiration time, and tidal volume.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.