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.

Start free for 14 days → Join the waiting list → See plans What opens in the app
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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.

Apply the science

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

Summit Check See how much runway and weekly training a summit realistically asks of you, free, in a few minutes. Your measured readiness comes from your watch, in the app. Open Summit Check → Trek Check Pick your trek, answer a few questions, get one report with your biggest gap for the hardest day and the consecutive days. Free, a few minutes, no signup. Mountaineering training plan How periodized blocks and the taper come together into a plan that ends on your summit date. See the plan structure → Trekking training plan How the same periodized blocks and taper become a plan that ends on your departure date, with back-to-back long days where a single-summit plan has one rehearsal. Alpine training guide The training foundations behind the pillars, explained for athletes, not physiologists. Read the guide → Strength training for hikers The leg and hip strength that keeps a week of walking injury-free, explained for trekkers, not physiologists.

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.

A high readiness number means your cardiovascular system and your legs are ready for the stages. It doesn't mean you'll finish the trek. That also requires a sensible acclimatisation schedule, decent weather, and the judgement to take a rest day when your body asks for one. Every trekker should use this as one part of their preparation - not the whole story.

See the model in action

Your program. Your summit.

Your program. Your trek.

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

Explore the algorithm with real-world scenarios and see how the TTM trekking training app builds a training plan tailored to your trek's stages and your departure date.

Start free for 14 days → Join the waiting list → See plans What opens in the app