title: Integrated estimation of the effect of physical factors on human functional state during mental work.
abstract: The purpose of this study was to develop a model for an integrated estimation of the functional state of the human organism (FSHO) and an integral estimation of physical factors (PF) for hygienic rating. Tests were performed twice with 3 men in 0.7-clo clothing during 4-hr mental work with 9 combinations of 4 PF: wideband noise (55- 83 dB(A)), whole-body vibration (6 Hz, a(z) = 0.2-1.8 ms(-2)), air temperature (18-30 degrees C), and illumination (1, 3, 5 lx). Thermoregulatory, cardiovascular, and psychophysiological reactions and temporary threshold of hearing (TTS2) shifts were studied. For the integral estimation of PF influence on FSHO the model F(y1,y2..........ym) = f(x1,x2,.......xn) was used, relating both FSHO and PF sets. The most important physiological parameters in creating FSHO are defined and the contribution of individual parameters of FSHO and PF is found.
authors.affiliation: RAMS Institute of Occupational Health, Moscow, Russian Federation.
authors.forename: G A
authors.initials: GA
authors.lastname: Suvorov
authors.forename: R F
authors.initials: RF
authors.lastname: Afanasieva
authors.forename: N S
authors.initials: NS
authors.lastname: Mikhailova
authors.forename: M A
authors.initials: MA
authors.lastname: Babayan
authors.forename: A F
authors.initials: AF
authors.lastname: Bobrov
authors.forename: S N
authors.initials: SN
authors.lastname: Sokolov
mesh_terms: D000328:Adult; D001833:Body Temperature Regulation; D004734:Energy Metabolism; D006804:Ergonomics; D006801:Humans; D008029:Lighting; D008603:Mental Health; D009622:Noise; D014732:Vibration