Episode 100 - Sit In A Tub, Run Like A Rocket with PhD Student, Elliott Jenkins

We talk with physiologist Elliot Jenkins about how passive heat acclimation boosts VO2 max, hemoglobin mass, and cardiac function in trained runners without adding mechanical training load. Practical protocols, safety tips, and open research questions round out a clear, actionable guide to using heat wisely.

• Elliot’s path from Otago to a PhD in the UK
• Why passive heat instead of exercising in heat
• Hematology: plasma volume expansion 
• Cardiac changes: larger end-diastolic volume and stroke volume
• VO2 max and speed gains in trained runners
• Practical protocol: time, temperature, frequency, hydration
• Safety: dizziness, slow exits, supervision, low blood pressure
• Dose-response unknowns and hot-climate athletes
• Heat vs cold and contrast for recovery and adaptation
• Where to find Elliot’s paper and social links (see below).

Follow Elliott Jenkins on X @E_J_Jenkins 

His paper is published here: https://physoc.onlinelibrary.wiley.com/doi/10.1113/JP289874