Non-invasive Prediction of Thermal Strain in Healthy Male Adults

Single-centre Experimental Evaluation of Methods for Reliable Non-invasive Prediction of Thermal Strain in Healthy Male Adults

This is primarily an experimental study investigating methods of temperature measurement / heat strain detection. In the calibration study, there are different skin temperature sensor types, and in the prediction study there are different methods for determining heat strain, including conventional methods (rectal, gastro-intestinal), the development of a prediction model, and an index based on heart rate variability.

Inclusion Criteria:

• Apparently healthy males
• aged 18-45 y
• regularly participate in sport, exercise, or equivalent physical activity on a weekly basis.

Exclusion Criteria:

• Known injuries or illnesses that may affect safe participation. These include injuries or illnesses involving (but not limited to):
• cardiovascular, renal, or gastrointestinal tract
• heat or exercise intolerance
• acute infections,
• immunological diseases (including asthma)
• psychiatric disorders.
• Participants must not be currently or previously on cardiovascular-related medication and must not be taking psychotropic medication (last 60 days).