Wearing long pants while working outdoors in the tropics does not yield higher body temperatures

To compare the thermoregulatory demands of outdoor workers wearing long or knee‐length pants while working in situ in a tropical environment. Fifteen male (35.8 ± 10.5 yr) outdoor Council workers completed their daily occupational duties (construction or gardening) in trials conducted six days apart...

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Published in:Australian and New Zealand journal of public health 2013-02, Vol.37 (1), p.70-75
Main Authors: Sinclair, Wade H., Brownsberger, Jarrod C.
Format: Article
Language:English
Subjects:
Adult
Australia
Blood
Body mass
body mass changes
Body temperature
Body Temperature Regulation
Climate change
dehydration
Environmental conditions
Ergonomics
Gardening
Heart rate
Heat
Heat exchange
heat stress
Humans
Hydration
Knee
Male
Middle Aged
Physical Exertion
Skin cancer
Skin Temperature
Statistics, Nonparametric
Temperature
Thigh
Time Factors
Tropical Climate
Tropical environment
Tropical environments
Workers
Workload
workload practices
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creator Sinclair, Wade H.
Brownsberger, Jarrod C.
description To compare the thermoregulatory demands of outdoor workers wearing long or knee‐length pants while working in situ in a tropical environment. Fifteen male (35.8 ± 10.5 yr) outdoor Council workers completed their daily occupational duties (construction or gardening) in trials conducted six days apart: once wearing knee‐length shorts (SHORTS) and once wearing full‐length pants (PANTS). Body mass and hydration were assessed prior to and following each trial with core body (TC) and mean skin temperature (MST; weighted from sites: chest, arm, thigh and calf) assessed at 30‐minute intervals throughout each trial. No significant differences between SHORTS and PANTS for TC, maximum TC, heart rate, MST or body mass changes. Skin temperature at the calf was greater for PANTS (33.8 ± 0.4°C) compared to SHORTS (32.9 ± 0.4°C; p
doi_str_mv 10.1111/1753-6405.12013
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Fifteen male (35.8 ± 10.5 yr) outdoor Council workers completed their daily occupational duties (construction or gardening) in trials conducted six days apart: once wearing knee‐length shorts (SHORTS) and once wearing full‐length pants (PANTS). Body mass and hydration were assessed prior to and following each trial with core body (TC) and mean skin temperature (MST; weighted from sites: chest, arm, thigh and calf) assessed at 30‐minute intervals throughout each trial. No significant differences between SHORTS and PANTS for TC, maximum TC, heart rate, MST or body mass changes. Skin temperature at the calf was greater for PANTS (33.8 ± 0.4°C) compared to SHORTS (32.9 ± 0.4°C; p&lt;0.05). Hydration assessments identified 36.7% of participants commenced work hypohydrated while the average body mass lost throughout the workday was 2.5 ± 1.5%. Main effects of time were observed for heart rate and MST but no other assessed variable. The additional exposed surface area available for heat exchange when wearing shorts is insufficient to elicit differences in thermoregulatory demands of outdoor employees under the assessed conditions. These results suggest the use of SHORTS or PANTS can be determined by occupational duty requirements rather than risk of heat‐related illness during very‐light to moderate workloads completed under warm and humid environmental conditions.</description><identifier>ISSN: 1326-0200</identifier><identifier>EISSN: 1753-6405</identifier><identifier>DOI: 10.1111/1753-6405.12013</identifier><identifier>PMID: 23379809</identifier><language>eng</language><publisher>Oxford, UK: Elsevier B.V</publisher><subject>Adult ; Australia ; Blood ; Body mass ; body mass changes ; Body temperature ; Body Temperature Regulation ; Climate change ; dehydration ; Environmental conditions ; Ergonomics ; Gardening ; Heart rate ; Heat ; Heat exchange ; heat stress ; Humans ; Hydration ; Knee ; Male ; Middle Aged ; Physical Exertion ; Skin cancer ; Skin Temperature ; Statistics, Nonparametric ; Temperature ; Thigh ; Time Factors ; Tropical Climate ; Tropical environment ; Tropical environments ; Workers ; Workload ; workload practices</subject><ispartof>Australian and New Zealand journal of public health, 2013-02, Vol.37 (1), p.70-75</ispartof><rights>2013 Copyright 2013 THE AUTHORS.</rights><rights>2013 The Authors. 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Fifteen male (35.8 ± 10.5 yr) outdoor Council workers completed their daily occupational duties (construction or gardening) in trials conducted six days apart: once wearing knee‐length shorts (SHORTS) and once wearing full‐length pants (PANTS). Body mass and hydration were assessed prior to and following each trial with core body (TC) and mean skin temperature (MST; weighted from sites: chest, arm, thigh and calf) assessed at 30‐minute intervals throughout each trial. No significant differences between SHORTS and PANTS for TC, maximum TC, heart rate, MST or body mass changes. Skin temperature at the calf was greater for PANTS (33.8 ± 0.4°C) compared to SHORTS (32.9 ± 0.4°C; p&lt;0.05). Hydration assessments identified 36.7% of participants commenced work hypohydrated while the average body mass lost throughout the workday was 2.5 ± 1.5%. Main effects of time were observed for heart rate and MST but no other assessed variable. The additional exposed surface area available for heat exchange when wearing shorts is insufficient to elicit differences in thermoregulatory demands of outdoor employees under the assessed conditions. 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Fifteen male (35.8 ± 10.5 yr) outdoor Council workers completed their daily occupational duties (construction or gardening) in trials conducted six days apart: once wearing knee‐length shorts (SHORTS) and once wearing full‐length pants (PANTS). Body mass and hydration were assessed prior to and following each trial with core body (TC) and mean skin temperature (MST; weighted from sites: chest, arm, thigh and calf) assessed at 30‐minute intervals throughout each trial. No significant differences between SHORTS and PANTS for TC, maximum TC, heart rate, MST or body mass changes. Skin temperature at the calf was greater for PANTS (33.8 ± 0.4°C) compared to SHORTS (32.9 ± 0.4°C; p&lt;0.05). Hydration assessments identified 36.7% of participants commenced work hypohydrated while the average body mass lost throughout the workday was 2.5 ± 1.5%. Main effects of time were observed for heart rate and MST but no other assessed variable. 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identifier ISSN: 1326-0200
ispartof Australian and New Zealand journal of public health, 2013-02, Vol.37 (1), p.70-75
issn 1326-0200
1753-6405
language eng
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source Wiley Online Library Journals; PAIS Index
subjects Adult
Australia
Blood
Body mass
body mass changes
Body temperature
Body Temperature Regulation
Climate change
dehydration
Environmental conditions
Ergonomics
Gardening
Heart rate
Heat
Heat exchange
heat stress
Humans
Hydration
Knee
Male
Middle Aged
Physical Exertion
Skin cancer
Skin Temperature
Statistics, Nonparametric
Temperature
Thigh
Time Factors
Tropical Climate
Tropical environment
Tropical environments
Workers
Workload
workload practices
title Wearing long pants while working outdoors in the tropics does not yield higher body temperatures
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