03 June 2004
Assessment of heat tolerance for post exertional heat stroke individuals
Daniel S. Moran, Yuval Heled, Lawrence Still, Arie Laor, Yair ShapiroMed Sci Monit 2004; 10(6): CR252-257 :: ID: 11681
Abstract
Background:The aim of this study was to evaluate the heat tolerance test, which was performed by individuals with high risk for heat injuries, for exposure duration and climatic conditions.Material/Methods: Nineteen young (19±1 yr) post heat stroke males performed 2 separate tolerance tests consisting of identical treadmill walking (5km·h–1, 2% grade) for 120 min during hot (40°C, 40%RH) and comfort (20°C, 50%RH) climate conditions. Physiological monitoring included rectal temperature (T[sub]re[/sub]), heart rate (HR), skin temperature and sweat rate (m[sub]sw[/sub]). Concomitantly, strain evaluation was assessed by the physiological strain index (PSI) and the cumulative heat strain index (CHSI).Results: 14 subjects were categorized as heat tolerant (HT) and 5 subjects as heat intolerant (HI). The comfort tolerance test was found as irrelevant for heat intolerance assessment. PSI after 60 min (PSI[sub]60[/sub]) was unable to predict PSI after 120 min (PSI[sub]120[/sub]) whereas there was not a high enough correlation between CHSI[sub]60[/sub] and CHSI[sub]120[/sub].
Conclusions: It was concluded that tolerance to heat must be tested during heat stress and the test duration cannot be shorter than 120 min.
Keywords: Body Temperature, Exercise - physiology, Exertion - physiology, Heart Rate - physiology, Heat, Heat Stroke - physiopathology, Sweat, Body Temperature, Exercise - physiology, Heart Rate - physiology, Heat Stroke - physiopathology, Hot Temperature, Physical Exertion - physiology, Sweat
Editorial
01 April 2024 : Editorial
Editorial: Forty Years of Waiting for Prevention and Cure of HIV Infection – Ongoing Challenges and Hopes for Vaccine Development and Overcoming Antiretroviral Drug ResistanceDOI: 10.12659/MSM.944600
Med Sci Monit 2024; 30:e944600
In Press
08 Mar 2024 : Clinical Research
Evaluation of Foot Structure in Preschool Children Based on Body MassMed Sci Monit In Press; DOI: 10.12659/MSM.943765
15 Apr 2024 : Laboratory Research
The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in OsteoarthritisMed Sci Monit In Press; DOI: 10.12659/MSM.943738
07 Mar 2024 : Clinical Research
Knowledge of and Attitudes Toward Clinical Trials: A Questionnaire-Based Study of 179 Male Third- and Fourt...Med Sci Monit In Press; DOI: 10.12659/MSM.943468
08 Mar 2024 : Animal Research
Modification of Experimental Model of Necrotizing Enterocolitis (NEC) in Rat Pups by Single Exposure to Hyp...Med Sci Monit In Press; DOI: 10.12659/MSM.943443
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952