The Endurance Athlete’s Guide to VO2max and Lactate Tests
Find out all the dos and don’ts of physiological testing as we break down VO2max and lactate/ramp testing.
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How to Use Physiological Data to Determine the Work You Should Do
Physiologist Jared Berg talks with us about how he uses both in-lab and on-the-road testing to determine what type of work an athlete should focus on.
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What Happens When We Stop Training? The Science of Detraining
Discover what happens to your body when you stop training. Dr. Iñigo Mujika explains detraining effects and how athletes can manage time off.
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Fast Chats: Should We Reconsider Zone 2 Training?
Zone 2 training has become all the rage, but a 2025 review is taking a step back and questioning whether it really produces the gains we thought it does.
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Staying Fit and Fast as a Masters Athlete
Age-related declines in performance are not as inevitable as you think.
Staying Active Late Into Pregnancy
We explore the best ways to stay active, safe, and comfortable as child birth nears.
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Longevity and Biomarkers of Performance
In this episode, we take a critical look at the longevity movement and explore the most valuable—yet elusive—biomarkers for athletes.
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Durability: The Fourth Pillar of Aerobic Fitness
Coaches have known about the importance of durability for years, but researchers are only just starting to catch up. We discuss why it is the fourth pillar of performance.
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The Reproductive System and Athletic Performance
Hormonal fluctuations during the menstrual cycle influence training, recovery, and performance. Individual tracking and targeted strategies help female athletes adapt and thrive.
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The Cardiovascular System and Athletic Performance
The cardiovascular system powers endurance performance. Explore how training reshapes the heart, what causes cardiovascular drift, and why too much exercise may carry long-term risks.
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The Respiratory System and Athletic Performance
Oxygen delivery, VO2max, and breathing efficiency all shape how the respiratory system supports endurance performance.
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The Endocrine System and Athletic Performance
Hormonal regulation plays a vital role in energy balance, recovery, and performance—disruptions can lead to fatigue, stagnation, or overtraining.
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The Many Rewards of Neuromuscular Training for Cyclists
Doing more sprint work and cadence drills on your rides could lead to substantial performance gains.
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Preventing and Managing Illness During Endurance Training
The closer we get to peak fitness, the more vulnerable we may become to illness. We explore how to prevent illness, and how to train effectively when it strikes.
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DIY Lactate Testing Like a Pro
As more athletes decide to dive into do-it-yourself lactate testing, we explain how to best conduct measurements and how to avoid the most common mistakes.
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The Science and Safety of Endurance Exercise During Pregnancy
We look at the latest research on the safety, benefits, and precautions for expecting mothers.
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Sweat Rate, Composition, and the Importance of Fluid Balance
We detail the integral role that water and sodium play in our physiological processes, and how understanding sweat rate and composition can improve performance, recovery, and health.
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Unlocking Your Full Potential: Insights from a Metabolic Assessment
Physiological testing is a powerful tool to fine-tune your training and optimize performance.
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The Effects of Cycling on Bone Health
A 2023 study claims cycling can cause significant bone density loss in as little as a year. Is there more to the story?
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