{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T00:05:50Z","timestamp":1793577950308,"version":"4.5.0"},"reference-count":31,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T00:00:00Z","timestamp":1787184000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100014089","name":"Workplace Safety and Insurance Board","doi-asserted-by":"publisher","award":["KENN2023"],"award-info":[{"award-number":["KENN2023"]}],"id":[{"id":"10.13039\/100014089","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["RGPIN\u20102020\u201003891"],"award-info":[{"award-number":["RGPIN\u20102020\u201003891"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American J Industrial Med"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Accurate assessment of heat strain at initial stay time (IST; core temperature 38.0\u00b0C or \u03941.0\u00b0C above resting), when heat mitigation decisions are required, is critical for managing occupational heat exposure. We evaluated the relationship and agreement between physiological (Physiological Strain Index [PSI] and adaptive PSI [aPSI]) and perceptual (Perceptual Strain Index [PeSI]) indices during simulated occupational work performed until IST.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Ninety\u2010seven healthy adults completed treadmill walking to IST at either moderate\u2010intensity (200\u2009W\u00b7m\n                      <jats:sup>\u22122<\/jats:sup>\n                      ; 24 young [12 females] and 25 older adults [13 females]) or heavy\u2010intensity (260\u2009W\u00b7m\n                      <jats:sup>\u22122<\/jats:sup>\n                      ; 24 young [12 females] and 24 older adults [12 females]) at wet\u2010bulb globe temperatures (WBGT) of 26\u00b0C, 29\u00b0C, or 32\u00b0C. Core and skin temperatures, heart rate, thermal sensation, and ratings of perceived exertion were measured to calculate PSI, aPSI, and PeSI. Relationships between indices were assessed using linear mixed\u2010effects models, and agreement was evaluated using Bland\u2212Altman analyses.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      PeSI increased with PSI and aPSI during moderate\u2010 and heavy\u2010intensity work (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). These relationships were not modified by group, environmental condition, body surface area, or aerobic fitness. However, agreement between perceptual and physiological indices was limited, showing wide limits of agreement between PSI and PeSI during moderate\u2010 (\u22122.3 to 4.2\u2009AU) and heavy\u2010intensity (\u22123.0 to 4.0\u2009AU) work. The agreement between PeSI and aPSI was modestly improved but remained variable.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We show that although perceptual responses increase with physiological heat strain, they do not reliably reflect physiological burden at IST, when decisions regarding the implementation of heat mitigation strategies are required.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ajim.70127","type":"journal-article","created":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T23:49:07Z","timestamp":1787269747000},"page":"972-983","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Limited Agreement Between Perceptual and Physiological Heat Strain at Initial Stay Times for Continuous Work in the Heat Before Heat Alleviation Controls"],"prefix":"10.1002","volume":"69","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8464-6017","authenticated-orcid":false,"given":"Gil","family":"Bourgois","sequence":"first","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics University of Ottawa Ottawa Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8772-7506","authenticated-orcid":false,"given":"Kristina\u2010Marie T.","family":"Janetos","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics University of Ottawa Ottawa Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9509-7682","authenticated-orcid":false,"given":"Fergus K.","family":"O'Connor","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics University of Ottawa Ottawa Canada"},{"name":"School of Allied Health and Social Work Griffith University Southport Australia"},{"name":"Australian Centre for Precision Health and Technology Griffith University Southport Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5460-8167","authenticated-orcid":false,"given":"Leonidas G.","family":"Ioannou","sequence":"additional","affiliation":[{"name":"Department of Automatics, Biocybernetics and Robotics Jo\u017eef Stefan Institute Ljubljana Slovenia"},{"name":"Medical School University of Cyprus Nicosia Cyprus"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8683-6973","authenticated-orcid":false,"given":"Glen P.","family":"Kenny","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics University of Ottawa Ottawa Canada"},{"name":"Institute of the Environment University of Ottawa Ottawa 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