Built on exercise science

The science that powers every decision

TTM isn't built on intuition or templates. Every training decision - load, intensity, timing, adaptation - comes from a model with four decades of peer-reviewed research behind it.

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Pillars
peer-reviewed foundations
1975
The original model
Banister & Calvert fitness-fatigue
40+
Years of validation
endurance, altitude, adaptation
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Sunday recalibration
the science, applied weekly
Five foundations

Research that builds altitude readiness

Each pillar is grounded in validated exercise science. Navigate with arrows, dots, keyboard, or swipe.

What the model measures - and what it doesn't

TTM's model measures cardiovascular altitude readiness with precision. The research is sound. The math is validated. But we're explicit about scope:

A high SRS means your cardiovascular system is ready. It doesn't mean you'll summit. That also requires technical skill, proper acclimatisation strategy, good fortune with weather, and the experience to know when to turn around. Every climber should use this as one part of their preparation - not the whole story.

Apply the science

The models above aren't theory. Run them on your numbers.

Mountaineering readiness calculator See how much runway and weekly training a summit realistically asks of you, free, in 90 seconds. Your measured readiness comes from your watch, in the app. Open the calculator → Mountaineering training plan How periodized blocks and the taper come together into a plan that ends on your summit date. See the plan structure → Alpine training guide The training foundations behind the pillars, explained for athletes, not physiologists. Read the guide →
See the model in action

Your program. Your summit.

Explore the algorithm with real-world scenarios and see how the TTM mountaineering training app builds a training plan tailored to your altitude objective.

Test my readiness (free) →
★ Start here

See the model output for your numbers

Run the public readiness calculator for any peak. 60 seconds, no signup.

Take the test