NDLI: Face temperature and cardiorespiratory responses to wind in thermoneutral and cool subjects exposed to −10 °C

Content Provider	Springer Nature Link
Author	Gavhed, Désirée Mäkinen, Tero Holmér, Ingvar Rintamäki, Hannu
Copyright Year	2000
Abstract	The effects of the thermal state of the body (slightly cool and neutral) and moderate wind speeds on face temperature, blood pressure, respiratory function and pain sensation during cold exposure were studied on eight healthy male subjects. They were dressed in cold-protective clothing and preconditioned at +20 °C (TN) and −5 °C (CO) for 60 min, then exposed to −10 °C and 0 m · s−1 (NoW), 1 (W1) and 5 (W5) m · s−1 wind for 30 min. Thus, each individual was exposed six times. The exposure to wind entailed a combination of strong cooling of the bare face and mild body cooling. The forehead, cheek and nose temperatures decreased during cold exposure, and the decrease was greater at higher air velocities (P < 0.0001). All subjects reported pain sensations at 5 m · s−1. At the end of exposure only the nose temperature was significantly lower in CO than in TN subjects; it was about 2 °C and reached 0 °C in two experiments. The systolic and diastolic blood pressure (SBP and DBP, respectively) increased significantly by 7.7 and 5.9 mmHg, respectively, during preconditioning at −5 °C, but did not change at +20 °C. SBP and DBP increased during exposure to −10 °C in TN by approximately 9 mmHg. However, the total average increase of blood pressure (1–90 min) was similar in TN and CO (SBP 15 mmHg and DBP 13 mmHg). SBP and DBP increased more during exposure to 5 m · s−1 at −10 °C than NoW. Blood pressure responses as observed in this study (SBP and DBP up to 51 and 45 mmHg, respectively) are potential health risks for hypertensive individuals and angina patients. Respiratory functions (FVC, FEV1) were reduced by about 3% by the cold (−5 and −10 °C) compared to pre-experiment values. Furthermore, the Wind Chill Index seems to underestimate the cooling power of 5 m · s−1 at −10 °C of bare skin (e.g. face). Therefore it needs to be revised and we suggest that it is expanded to include risk levels for pain sensation.
Starting Page	449
Ending Page	456
Page Count	8
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	83
Issue Number	4
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-11-14
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Thermal responses to cold wind of thermoneutral and cooled subjects

Cardiorespiratory responses to fatiguing dynamic and isometric hand-grip exercise

Cardiorespiratory responses to exercise in acute hypoxia, hyperoxia and normoxia

Are the blood pressure and endocrine responses of healthy subjects exposed to cold stress altered by an acutely increased sodium intake?

Metabolic and cardiorespiratory responses to maximal intermittent knee isokinetic exercise in young healthy humans

Effects of motion sickness on thermoregulatory responses in a thermoneutral air environment

Cardiovascular responses to cold-water immersions of the forearm and face, and their relationship to apnoea

Psychological stress during exercise: cardiorespiratory and hormonal responses

Facial cold-induced vasodilation and skin temperature during exposure to cold wind

Face temperature and cardiorespiratory responses to wind in thermoneutral and cool subjects exposed to −10 °C

Similar Documents

Thermal responses to cold wind of thermoneutral and cooled subjects

Cardiorespiratory responses to fatiguing dynamic and isometric hand-grip exercise

Cardiorespiratory responses to exercise in acute hypoxia, hyperoxia and normoxia

Are the blood pressure and endocrine responses of healthy subjects exposed to cold stress altered by an acutely increased sodium intake?

Metabolic and cardiorespiratory responses to maximal intermittent knee isokinetic exercise in young healthy humans

Effects of motion sickness on thermoregulatory responses in a thermoneutral air environment

Cardiovascular responses to cold-water immersions of the forearm and face, and their relationship to apnoea

Psychological stress during exercise: cardiorespiratory and hormonal responses

Facial cold-induced vasodilation and skin temperature during exposure to cold wind

Face temperature and cardiorespiratory responses to wind in thermoneutral and cool subjects exposed to −10 °C