Racing & Training with the CORE Sensor

When you get hot, your power output drops. The more you know about your individual core body temperature behaviour, the better you can train and race.

Your core temperature is one factor that impacts your overall performance and the CORE sensor can help you perform at your best. The CORE sensor is quick to set up and simple to use. Like many other sports sensors, you set it up once and then it automatically connects and delivers data to your devices.

For sports use, the CORE sensor works best when paired with a heart rate monitor. This provides more accurate data and just needs to be paired once. For easy setup and pairing, follow our guide here.

core body temperature heat stress

CORE for Heat Stress

Set your own safe limits to maximise performance while avoiding overheating.
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core body temperature heat training

CORE for Heat Training

Effectively heat train to condition and adapt your body for better performance.
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core body temperature active cooling

CORE for Active Cooling

Understand your own thermoregulation for strategic cooling.
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The basics of core body temperature for sports

When athletes get hot, the body diverts blood away from power-producing muscles to the skin. Sweat evaporation then cools the blood and the core body temp. You can read more about the science of thermoregulation in sports.

You can prevent rising core temps from impacting performance in two ways:

  1. Keep cool
  2. Train your body to performane better when hot

As humans, we think we are able to judge temperature... but when we try to estimate our internal core body temperature, it is easy to get it wrong. The CORE sensor takes away the guessing and provides accurate real-time data.

Keep in mind, every person has an individual temperature behaviour. Following a heat training program or racing strategy tailored for another person will introduce problems. Knowing your own personal temperature behaviour and limits will improve your performance.

Sport performance benefits related to core body temperature can be split into three key areas.

1. Avoiding Heat Stress

Racing and training in hot conditions increases the risk of heat stress. This threatens athletes who are unprepared or who overexert themselves.

Heat stress can cause minor impacts such as a loss of energy (bonking/blowing up), resulting in under-performance and possible withdrawal from competition. But it can also result in life-threatening collapse that requires immediate medical attention. Recovery from severe heat stress can take weeks or months.

The CORE Body Temperature Monitoring Sensor allows athletes to view and record their real-time core temp data. This helps them form insights and define their own safe limits while retaining performance during training and racing .

We stress that the CORE sensor is not designed to diagnose heat related illnesses. Rather, it provides data that can help athletes avoid overheating.

2. Heat Training

Often athletes train at lower core body temperatures and race at higher temperatures. To optimize performance it is an advantage to 'stress' the body by raising the temperature and training it to operate better.

Heat training conditions the body by regularly increasing the core body temperature during exercise. This heat acclimation (heat adaption) triggers a physiological response that enables athletes to increase power output and improve performance in both hot and cool conditions.

Heat training is similar to high intensity or altitude training in that it introduces a ‘stress’ and the body then naturally adapts to become more efficient.

Scientific studies show that athletes have a very high response rate to heat training. The International Olympic Committee encouraged heat training for all athletes competing in the challenging climate of the Tokyo Olympics.

The Heat Ramp Test was developed in collaboration with leading coaches and researchers to identify each athlete's optimal Heat Training Zone. The CORE sensor takes away the guessing that has historically accompanied heat training. With CORE, athletes can monitor their core body temperature in real-time and train efficiently and effectively.

More details on heat training, heat acclimation and the heat ramp test are available here.

3. Active Cooling

By actively keeping the core body temperature lower, more power is available from the muscles because less blood is diverted to the skin for cooling.

Thermoregulation varies from person to person as does the individual response to cooling. During training, the CORE sensor can help athletes identify their most effective cooling approaches. This can include pre-cooling, adjusting pacing (reducing power), wetting the skin with water, leveraging wind cooling, selecting sportswear with the best cooling capabilities and, of course, hydrating.

Active cooling gives a strategic advantage when racing. The CORE sensor can assist athletes and coaches to better understand individual responses to cooling and to plan ahead.

Would you like to learn more?

In the CORE blog we publish informative articles plus we also have a large resource of internal and external topics for everything about core body temperature.

The CORE sensor can be purchased directly online or from one of our trusted retailers.