320: Expert Edition: Chris Blomfield-Brown, CORE Body Temperature Technology Lead - Thermoregulation in Sport

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Apr 11, 2022

Chris Blomfield-Brown, Performance and Technology Lead at Core Body Temperature, dives into the science of thermoregulation in sports. He discusses how athletes can monitor their core body temperature to enhance performance and optimize training strategies. The conversation highlights the impact of warming up on power output, as well as the benefits of heat acclimatization for peak performance. Chris also shares innovative wearable technologies that track temperature and the critical role of understanding individual thermal thresholds for improving athletic outcomes.

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INSIGHT

Energy Transfer

We perceive temperature as energy transfer, not an absolute value.
Our bodies sense the rate of energy exchange (watts per meter squared), influencing our perception of hot and cold.

ANECDOTE

Swiss Alps Descent

Descending the Swiss Alps, Chris felt cold despite elevated core temperature due to rapid energy loss.
This demonstrates how perceived temperature can differ from actual core body temperature.

INSIGHT

Heat Generation During Exercise

During exercise, a significant portion of energy expenditure is converted into heat.
A cyclist producing 300 watts may generate 700 watts of excess heat, highlighting the body's thermal burden.

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In episode 320 of The Physical Performance Show Brad Beer shares a conversation with Chris Blomfield-Brown around Thermoregulation in Sport in this Expert Edition. Chris Blomfield-Brown is the Performance and Technology Lead at Core Body Temperature, manufacturing devices to help athletes of all levels measure their core body temperature and through thermo regulation science achieve their physical best. These devices made by core body temperature are being used extensively within the ranks of the world cycling peloton. Chris outlines many athletes and teams and Federation's leading into Tokyo 2020 were using the devices to assist the athletes with their heat acclimation strategies.

In this episode Chris discusses physiology and the role of thermo regulation within sports, how we can monitor our core body temperature and why it matters, the relationship between warming up, losing power and decrement in performance, and the concept of thermal load and how we can all apply it to our training to optimise outcomes.

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