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- W4387061852 abstract "Validity of a Predictive Equation for Measuring Core Temperature during Exercise in the Heat. Robert J. Castro; Alexander J. Gonsalves; Edgar B. Doolan; Jochen KresslerSan Diego State UniversityExercising in the heat is very common yet can pose significant health risks such as heat exhaustion and heat stroke when core temperature exceeds 38 °C and 40 °C, respectively. However, current methods of core temperature measurement are invasive and impractical. Recent research indicates that core temperature can be predicted with two non-invasive inputs, heart rate (HR) and skin temperature. PURPOSE: The objective of this study was to assess the validity and reliability of this predictive equation against the direct measurement of core temperature. METHODS: Participants (n = 13) cycled in an environmental chamber (40 °C, 40% humidity) at 75% of maximal HR for 45 minutes. Measurements included HR, scapular skin and core temperature, blood pressure, and rating of perceived exertion. Exercise stopped if core temperature exceeded 38.5 °C for two consecutive measurements or volitional fatigue. Agreement between predicted and actual core temperature was assessed with Bland–Altman analysis. SUMMARY OF RESULTS: There was a low correlation (R2 = 0.2) between the direct measure and predicted core temperatures. The Bland–Altman analysis showed a bias of 0.12 °C and limits of agreement ranging from 0.70 °C to −0.47 °C. In addition, a large proportion of values (37%) of the predicted core temperature was ±0.3 °C away from the directly measured core temperature. Additionally, the predictive equation overpredicted as mean temperature increased from the average core temperature (37 °C) CONCLUSION: Based on the narrow temperature range the human body must stay within to prevent heat related issues, we’ve concluded that the predictive equation lacks sufficient validity and reliability." @default.
- W4387061852 created "2023-09-27" @default.
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- W4387061852 date "2023-09-01" @default.
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- W4387061852 title "Validity Of A Predictive Equation For Measuring Core Temperature During Exercise In The Heat." @default.
- W4387061852 doi "https://doi.org/10.1249/01.mss.0000980852.58887.63" @default.
- W4387061852 hasPublicationYear "2023" @default.
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