Core 2.0 Body Thermal Sensor

CORE 2 monitors your real-time thermal data for better performance. Safely and effectively facilitate heat training to boost your haemoglobin mass and VO2 max or monitor your data on race-day so you can cool and pace your effort accordingly.

Heat Strain Index

Heat strain describes the physiological processes that cool the body. The harder the body works to cool itself, the greater the strain, and the greater the impact on performance. CORE’s Heat Strain Index (HSI) quantifies this strain in real time using an algorithmic combination of core and skin temperatures.

Heat Zones

Your Heat Strain Index can fall into 1 of 4 Heat Zones. The heat training zone (Zone 3) is the one that causes physiological adaptations that improve performance. Time spent in each zone is tracked on the CORE app.

Heat Training Load

Your Heat Training Load is the daily value (on a scale of 0-10) of the amount of time spent in the heat training zone (Zone 3). Optimal heat training involves 2–3 sessions per week, with 45–60 minutes per session in the heat training zone. Sequential days with high Heat Training Load will increase your Heat Adaptation Score.