External auricle temperature enhances ear-based wearable accuracy during physiological strain monitoring in the heat.

ABSTRACT: Body core temperature (T_c) monitoring is crucial for minimizing heat injury risk. However, validated strategies are invasive and expensive. Although promising, aural canal temperature (T_ac) is susceptible to environmental influences. This study investigated whether incorporation of external auricle temperature (T_ea) into an ear-based T_c algorithm enhances its accuracy during multiple heat stress conditions. Twenty males (mean ± SD; age = 25 ± 3 years, BMI = 21.7 ± 1.8, body fat = 12 ± 3%, maximal aerobic capacity (VO_2max) = 64 ± 7 ml/kg/min) donned an ear-based wearable and performed a passive heating (PAH), running (RUN) and brisk walking trial (WALK). PAH comprised of immersion in hot water (42.0 ± 0.3 °C). RUN (70 ± 3%VO_2max

SUBMITTER: Tan SCC 

PROVIDER: S-EPMC11139936 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature