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document
Is the effect of mobile phone radiofrequency waves on human skin perfusion non-thermal ? OBJECTIVE To establish whether SkBF can be modified by exposure to the radiofrequency waves emitted by a mobile phone when the latter is held against the jaw and ear . METHODS Variations in SkBF and Tsk in adult volunteers were simultaneously recorded with a thermostatic laser Doppler system during a 20-minute " radiofrequency " exposure session and a 20-minute " sham " session . The skin microvessels ' vasodilatory reserve was assessed with a heat challenge at the end of the protocol . RESULTS During the radiofrequency exposure session , SkBF increased ( vs. baseline ) more than during the sham exposure session . The sessions did not differ significant in terms of the Tsk time-course response . The skin microvessels ' vasodilatory ability was found to be greater during radiofrequency exposure than during sham exposure . CONCLUSIONS Our results reveal the existence of a specific vasodilatory effect of mobile phone radiofrequency emission on skin perfusion .
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Intervention_Physical
mobile phone radiofrequency waves
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Intervention_Physical
radiofrequency waves emitted by a mobile phone
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Intervention_Physical
recorded with a thermostatic laser Doppler system during a 20-minute " radiofrequency " exposure session and a 20-minute " sham " session
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Intervention_Physical
radiofrequency exposure session
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Intervention_Physical
sham exposure session
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Intervention_Physical
mobile phone radiofrequency emission
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Outcome_Physical
SkBF
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Outcome_Physical
Variations in SkBF
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Outcome_Physical
SkBF
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Outcome_Other
Tsk time-course response
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Outcome_Physical
skin microvessels ' vasodilatory ability
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Outcome_Other
vasodilatory