Effects of low humidity and high air velocity in a heated room on physiological responses and thermal comfort after bathing: an experimental study.

Nobuko Hashiguchi, Yutaka Tochihara

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

OBJECTIVE: In the present study we investigated the effects of low relative humidity (RH) and high air velocity (VA) on physiological and subjective responses after bathing in order to present the evidence for required nursing intervention after bathing. METHODS: Eight healthy male subjects participated in this experiment. There were four thermal conditions which combined RH (20% of 60%) and VA (low: less than 0.2 m/s or high: from 0.5 to 0.7 m/s). After taking a tub bath, subjects sat for 80 min in the test room under each condition. In addition, one condition under which the subjects were exposed to 20% RH and high VA condition for 80 min without bathing condition was conducted. RESULTS: A decrease in mean skin temperature (T sk), dryness of the skin and eyes were observed, though thermal comfort and warmth retained, due to spending time after bathing in a low RH and high VA environment, compared to the condition without bathing. Moreover, dryness of the skin, a decrease in hydration of the skin and an increase in transepidermal water loss (TEWL) after bathing were significantly affected by RH levels, on the other hand subjective coolness, discomfort and perception of dryness in the eye were significantly affected by VA levels. The decrease in T sk after bathing was significantly affected by both RH and VA. CONCLUSION: From our findings we concluded that low RH and high VA have negative effects on humans after bathing, for example a decrease in body temperature and dryness of the skin and eyes. Moreover, it was indicated that the negative effects could be kept to a minimum and thermal comfort remain higher, if RH and VA levels were controlled within the optimum ranges.

Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalInternational journal of nursing studies
Volume46
Issue number2
Publication statusPublished - Jan 1 2009

Fingerprint

Humidity
Hot Temperature
Air
Skin
Skin Temperature
Body Temperature
Baths
Healthy Volunteers
Nursing
Water

All Science Journal Classification (ASJC) codes

  • Nursing(all)

Cite this

@article{03cbe55f49e249218537c5063272b29a,
title = "Effects of low humidity and high air velocity in a heated room on physiological responses and thermal comfort after bathing: an experimental study.",
abstract = "OBJECTIVE: In the present study we investigated the effects of low relative humidity (RH) and high air velocity (VA) on physiological and subjective responses after bathing in order to present the evidence for required nursing intervention after bathing. METHODS: Eight healthy male subjects participated in this experiment. There were four thermal conditions which combined RH (20{\%} of 60{\%}) and VA (low: less than 0.2 m/s or high: from 0.5 to 0.7 m/s). After taking a tub bath, subjects sat for 80 min in the test room under each condition. In addition, one condition under which the subjects were exposed to 20{\%} RH and high VA condition for 80 min without bathing condition was conducted. RESULTS: A decrease in mean skin temperature (T sk), dryness of the skin and eyes were observed, though thermal comfort and warmth retained, due to spending time after bathing in a low RH and high VA environment, compared to the condition without bathing. Moreover, dryness of the skin, a decrease in hydration of the skin and an increase in transepidermal water loss (TEWL) after bathing were significantly affected by RH levels, on the other hand subjective coolness, discomfort and perception of dryness in the eye were significantly affected by VA levels. The decrease in T sk after bathing was significantly affected by both RH and VA. CONCLUSION: From our findings we concluded that low RH and high VA have negative effects on humans after bathing, for example a decrease in body temperature and dryness of the skin and eyes. Moreover, it was indicated that the negative effects could be kept to a minimum and thermal comfort remain higher, if RH and VA levels were controlled within the optimum ranges.",
author = "Nobuko Hashiguchi and Yutaka Tochihara",
year = "2009",
month = "1",
day = "1",
language = "English",
volume = "46",
pages = "172--180",
journal = "International Journal of Nursing Studies",
issn = "0020-7489",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - Effects of low humidity and high air velocity in a heated room on physiological responses and thermal comfort after bathing

T2 - an experimental study.

AU - Hashiguchi, Nobuko

AU - Tochihara, Yutaka

PY - 2009/1/1

Y1 - 2009/1/1

N2 - OBJECTIVE: In the present study we investigated the effects of low relative humidity (RH) and high air velocity (VA) on physiological and subjective responses after bathing in order to present the evidence for required nursing intervention after bathing. METHODS: Eight healthy male subjects participated in this experiment. There were four thermal conditions which combined RH (20% of 60%) and VA (low: less than 0.2 m/s or high: from 0.5 to 0.7 m/s). After taking a tub bath, subjects sat for 80 min in the test room under each condition. In addition, one condition under which the subjects were exposed to 20% RH and high VA condition for 80 min without bathing condition was conducted. RESULTS: A decrease in mean skin temperature (T sk), dryness of the skin and eyes were observed, though thermal comfort and warmth retained, due to spending time after bathing in a low RH and high VA environment, compared to the condition without bathing. Moreover, dryness of the skin, a decrease in hydration of the skin and an increase in transepidermal water loss (TEWL) after bathing were significantly affected by RH levels, on the other hand subjective coolness, discomfort and perception of dryness in the eye were significantly affected by VA levels. The decrease in T sk after bathing was significantly affected by both RH and VA. CONCLUSION: From our findings we concluded that low RH and high VA have negative effects on humans after bathing, for example a decrease in body temperature and dryness of the skin and eyes. Moreover, it was indicated that the negative effects could be kept to a minimum and thermal comfort remain higher, if RH and VA levels were controlled within the optimum ranges.

AB - OBJECTIVE: In the present study we investigated the effects of low relative humidity (RH) and high air velocity (VA) on physiological and subjective responses after bathing in order to present the evidence for required nursing intervention after bathing. METHODS: Eight healthy male subjects participated in this experiment. There were four thermal conditions which combined RH (20% of 60%) and VA (low: less than 0.2 m/s or high: from 0.5 to 0.7 m/s). After taking a tub bath, subjects sat for 80 min in the test room under each condition. In addition, one condition under which the subjects were exposed to 20% RH and high VA condition for 80 min without bathing condition was conducted. RESULTS: A decrease in mean skin temperature (T sk), dryness of the skin and eyes were observed, though thermal comfort and warmth retained, due to spending time after bathing in a low RH and high VA environment, compared to the condition without bathing. Moreover, dryness of the skin, a decrease in hydration of the skin and an increase in transepidermal water loss (TEWL) after bathing were significantly affected by RH levels, on the other hand subjective coolness, discomfort and perception of dryness in the eye were significantly affected by VA levels. The decrease in T sk after bathing was significantly affected by both RH and VA. CONCLUSION: From our findings we concluded that low RH and high VA have negative effects on humans after bathing, for example a decrease in body temperature and dryness of the skin and eyes. Moreover, it was indicated that the negative effects could be kept to a minimum and thermal comfort remain higher, if RH and VA levels were controlled within the optimum ranges.

UR - http://www.scopus.com/inward/record.url?scp=74949089410&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74949089410&partnerID=8YFLogxK

M3 - Article

C2 - 19004439

AN - SCOPUS:74949089410

VL - 46

SP - 172

EP - 180

JO - International Journal of Nursing Studies

JF - International Journal of Nursing Studies

SN - 0020-7489

IS - 2

ER -