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Titolo:
USEFULNESS OF R-R INTERVAL AND ITS VARIABILITY IN EVALUATION OF THERMAL COMFORT
Autore:
HASEBE Y; IRIKI M; TAKAHASI K;
Indirizzi:
OCHANOMIZU UNIV,DEPT HUMAN ENVIRONM ENGN,BUNKYO KU TOKYO 112 JAPAN YAMANASHI MED UNIV NAKAKOMA YAMANASHI 40938 JAPAN
Titolo Testata:
International journal of biometeorology
fascicolo: 3, volume: 38, anno: 1995,
pagine: 116 - 121
SICI:
0020-7128(1995)38:3<116:UORIAI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUTONOMIC NERVOUS-SYSTEM; CARDIOVASCULAR VARIABILITY; SPECTRAL-ANALYSIS;
Keywords:
THERMAL COMFORT; HEART RATE; HEART RATE VARIABILITY; OPERATIVE TEMPERATURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
Y. Hasebe et al., "USEFULNESS OF R-R INTERVAL AND ITS VARIABILITY IN EVALUATION OF THERMAL COMFORT", International journal of biometeorology, 38(3), 1995, pp. 116-121

Abstract

The use of R-R interval and the coefficient of variation in R-R intervals (CVR-R) for the evaluation of thermal comfort was investigated. The experiments were carried out with ten male subjects but data from one were excluded from the analysis. Thermal sensation, comfort, and tolerance of environmental conditions were reported and mean skin temperature, R-R interval and CVR-R were monitored during a 3 h period in a climatic chamber with the operative temperature set at 26, 20, or 30 degrees C. Relative humidity was maintained at ca. 50% in each case. Atthe operative temperature of 20 degrees C, the mean skin temperature was significantly lower, the cold sensation was significantly more intense, and discomfort was significantly greater than at 26 degrees C and R-R interval was increased significantly. Seven of the nine subjectswere unable to tolerate this thermal environment. The RR interval andCVR-R were increased in five and four of those seven subjects, respectively. At the operative temperature of 30 degrees C, the mean skin temperature was significantly higher, and the sensation of warmth was significantly more intense than at 26 degrees C. Seven of the nine subjects felt discomfort, and four of the seven reported an inability to tolerate this thermal environment. The R-R interval and CVR-R were decreased in four and three of these four subjects, respectively. At the operative temperature of 20 degrees C CVR-R was significantly greater than that at 30 degrees C. Together with the subjective indices, R-R interval and CVR-R are considered worthy of further evaluation as objective indications of the effect on people of the thermal environment.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 05:45:38