Blog
Training concepts explained the way the app uses them. No listicles.
What a heart-rate strap actually tells you
Zones, training load, and how fast your heart rate drops after a set. A plain guide to the numbers a chest strap adds — and why none of them are required.
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Why your program has easy weeks in it
Deload weeks look like lost training and are the opposite. What each week intensity in a plan means, and why skipping the easy ones costs you.
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What RIR means, and why plans skip the weight
Reps in reserve prescribes effort instead of load, so one session works on a strong day and a tired one. How to read it, and how to judge it honestly.
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Be there on day one
Fitness Flow is finishing up for iOS and Android. Confirm your email and we will tell you the day it lands. Nothing else after that.