＜目的＞ＥＭＦの過敏症を訴えた患者（100名）に対し，ＥＭＦ感度テストを行う． ＜方法＞（１）外部環境の影響をしゃ断したＥＭＦ感度試験室を用意する．内部の電界は0-100V/m，磁界は20-200nTである．（２）使用周波数は0.1Hz-5MHzの21段階でパルス発信器は直径6cmのコイルに接続されている．さらに，５つのゼロフィールドの条件を設ける．（３）100名の患者に対するＥＭＦ感度スクリーニングテストを行う．試験間隔は３分である．（４）ＥＭＦ感度を有すると認められた患者に対して，二重盲検法によりテストを行う． ＜結果および結論＞ ＥＭＦ感度スクリーニングテストをパスした２５人（ゼロフィールドに対しては，無回答）の内，１６人に対する再テストの結果によると，1および2.5Hzに応答した人が75％，10と20Hzおよび10kHzに応答した人が69％ほどいた．この際の症状は眠気，頭痛などの神経学的なものであった．この16人に対し，さらにもう一度テスト（最高感度周波数フィールドとゼロフィールド）が２回づつ行われ，全員誤りなく感知した．
The detailed summary of this article is not available in your language or incomplete. Would you like to see a complete translation of the summary? Then please contact us →
A multiphase study was performed to find an effective method to evaluate electromagnetic field sensitivity of patients.
1) The first phase developed criteria for controlled testing.
2) A second phase involved a challenge of 100 patients who complained of electromagnetic field sensitivity to a series of electromagnetic fields ranging from 0 to 5 MHz in frequency, plus 5 blank challenges (sham exposure). 25 patients were sensitive to the electromagnetic fields, but did not react to the sham exposure. These were compared in the
3rd phase to 25 healthy naive volunteer controls.
4) 16 electromagnetic field-sensitive patients were rechallenged twice to the frequencies to which they were most sensitive during the previous challenge.
| 周波数 | 100 mHz–5 MHz |
|---|---|
| タイプ |
|
| 波形 |
|
| ばく露時間 | 3 min/test |
| Modulation type | CW |
|---|
| ばく露の発生源／構造 | |
|---|---|
| Distance between exposed object and exposure source | 0.3 m |
| ばく露装置の詳細 | coil 16 cm diameter and 15 cm long, consisting of 35 m of cable, positioned on the floor of the low-pollution room; test person sitting on a chair in this room |
| Modulation type | CW |
|---|
| ばく露の発生源／構造 |
|
|---|---|
| Sham exposure | A sham exposure was conducted. |
1) Monitoring devices were used to ensure that extraneous electromagnetic fields would not interfere with the tests.
2) 25 patients were sensitive to the electromagnetic fields, but did not react to the sham exposure. These patients were compared to healthy naive volunteer controls (third phase). None of the volunteers reacted to any challenge, i.e. exposure or sham exposure, but 16 of the electromagnetic field-sensitive patients had positive signs and symptoms, plus autonomic nervous system changes.
4) The active frequency (exposure) was found to be positive in 100 % of the challenges, while all of the placebo tests were negative.
The authors conclude that the data give strong evidence that electromagnetic field sensitivity exists, and can be elicited under environmentally controlled conditions. Further studies are needed to investigate the effects of electromagnetic fields on human health.
このウェブサイトはクッキー（Cookies）を使って、最善のブラウジングエクスペリエンスを提供しています。あなたがこのウェブサイトを継続して使用することで、私たちがクッキーを使用することを許可することになります。
