title: FDTD computation of temperature elevation in the elderly for far-field RF exposures.
abstract: Core temperature elevation and perspiration in younger and older adults is investigated for plane-wave exposure at whole-body averaged specific absorption rate of 0.4 W kg(-1). Numeric Japanese male model is considered together with a thermoregulatory response formula proposed in the authors' previous study. The frequencies considered were at 65 MHz and 2 GHz where the total power absorption in humans becomes maximal for the allowable power density prescribed in the international guidelines. From the computational results used here, the core temperature elevation in the older adult model was larger than that in the younger one at both frequencies. The reason for this difference is attributable to the difference of sweating, which is originated from the difference in the threshold activating the sweating and the decline in sweating in the legs.
authors.affiliation: Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-shi 466-8555, Japan.
authors.forename: Tomoki
authors.initials: T
authors.lastname: Nomura
authors.forename: Ilkka
authors.initials: I
authors.lastname: Laakso
authors.forename: Akimasa
authors.initials: A
authors.lastname: Hirata
mesh_terms: D000042:Absorption; D000328:Adult; D000367:Age Factors; D000368:Aged; D000465:Algorithms; D001831:Body Temperature; D003198:Computer Simulation; D060733:Electromagnetic Radiation; D006801:Humans; D007564:Japan; D008297:Male; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011846:Radio Waves; D011874:Radiometry / Q000379:methods*; D013546:Sweating; D013696:Temperature; D014916:Whole-Body Irradiation; D055815:Young Adult