Callum Brownstein, PhD, is a lecturer in exercise physiology at Newcastle University. Callum has conducted extensive research in fatigability, and the mechanisms of neuromuscular fatigue in (among others) endurance exercise. In this interview, we dive deep into the mechanisms and applications of neuromuscular fatigue in an endurance sports context.
IN THIS EPISODE YOU'LL LEARN ABOUT:
-What is fatigue?
-Differentiating between impairments in contractile function ("peripheral fatigue") and voluntary activation ("central fatigue")
-How can fatigue and its underlying mechanisms be measured?
-Different fatigue mechanisms in cycling vs. running
-Differences in magnitude of fatigue and fatigue mechanisms between the different intensity domains
-The impact of exercise duration on fatigue
-Practical applications for triathletes and endurance athletes
SHOWNOTES:
https://scientifictriathlon.com/tts355/
SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE:
www.scientifictriathlon.com/podcast/
SPONSORS:
ROKA - Exceptional quality triathlon wetsuits, trisuits, swimskins, goggles, performance sunglasses as well as prescription eyeglasses and sunglasses. Online vision test for prescription updates and home try-on options available for eyeglasses. Ships from the US, UK and EU. Trusted by world-leading athletes such as Lucy Charles-Barclay, Javier Gómez Noya, Flora Duffy, Morgan Pearson, Summer Rappaport and others in triathlon, cycling, speed skating, and many more. Visit roka.com/tts for 20% off your order.
ZEN8 - The ZEN8 Indoor Swim Trainer is a one of a kind swim bench for time-crunched triathletes looking to improve their swim technique, power and propulsion, and consistency of swim training. It is very affordable, about the price of a pair of running shoes, and Zen8 offer free shipping in the US and the UK. Best of all, you can try it risk-free. If you don't love it after two weeks, send it back and get a full refund. Get 20% off your order at zen8swimtrainer.com/tts.
LINKS AND RESOURCES:
RATE AND REVIEW:
If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/
CONTACT:
Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.
NEW BASE TRAINING PLANS - 60% LAUNCH DISCOUNT
We have just launched a set of brand new base training plans. There is a low-volume (7 hours per week average), mid-volume (10 h/wk) and high-volume (14 h/wk) version available.
For a limited time only, until the 31st of August 2025, these plans are available on a massive discount of 60%, meaning you can purchase a plan for 30$ instead of the regular price of 75$. Use the code "BASE1" at checkout to apply this discount code.
The plans are only available on TrainingPeaks. You can learn more about each of the plans (and purchase them, if you so desire) through the links below.
