CORE Sensor

Moving Beyond Core Temperature

Core temperature is an important metric for assessing an athlete’s thermal state. However, core temperature alone does not sufficiently estimate thermal strain on the body. This is because at a given core temperature, performance loss occurs earlier when skin temperature is higher, due to an increase in heart rate and blood flow to the skin. In addition, a high skin temperature increases the feeling of discomfort during exercise in the heat. 

Extensive research has shown that the concept of mean body temperature is one of the top indicators for assessing heat strain. Mean body temperature is the weighted average of the body’s core temperature and skin temperature. This calculation typically requires measurements from different locations of the body.  As the CORE sensor collects data from only one location, extensive laboratory testing by CORE experts has resulted in a formula that allows the CORE sensor to accurately estimate mean body temperature.

Individuality of Heat Zones 

Thermoregulation and associated performance losses are highly individual. Therefore, the exact thresholds for the Heat Zones may vary across individuals. For example, Heat Zone 3 has a fairly wide range of values, and not everyone will react the same way to each of those values. For some, a Heat Strain Index of 3.0–4.0 will cause great performance loss and may be an effective range for heat training . Others may see relatively little performance loss between 3.0–4.0 and may need a Heat Strain Index of 5.0 or 6.0 for effective heat training. Similarly, exercise in Heat Zone 4 may be dangerous for some athletes, but not for all. 

These individual differences can be caused by various factors, such as heat adaptation status, fitness level, height, weight, body composition, sex, and age. Also, some people simply have a ‘low thermostat’ or ‘high thermostat’ and may see lower or higher values than their peers. 

Key Benefits of CORE Sensor

• Continuous and accurate core body temperature monitoring
• Enhanced training adaptation through personalized cooling protocols
• Compatibility with popular sports tech devices and training apps
• Real-time data analysis for performance optimization
• Compact and waterproof design for versatile use in any activity
• Long-lasting battery life with rechargeable lithium-polymer battery

How does it work?

The CORE Sensor utilizes advanced sensor technology to monitor core body temperature non-invasively. Worn on the chest, the sensor captures temperature readings with medical-grade accuracy, unaffected by environmental thermal influences. These readings, along with skin temperature measurements, are transmitted in real-time to the CORE app and compatible devices, providing users with immediate insights into their body's heat strain and performance levels.

Through strategic monitoring of core body temperature, users can make informed decisions regarding pacing and cooling strategies during training and competition. By understanding how their bodies respond to exertion and heat stress, athletes can optimize performance and minimize the negative effects of overheating. Additionally, the CORE app displays the Heat Strain Index, a valuable metric for assessing overall heat stress and guiding training adjustments.