Genetics decide your ceiling, not your slope
Whether you're built like a marathoner or a powerlifter, the slope of your strength curve is up to you. You can roughly double your starting strength on this protocol.
‘I have bad genetics for lifting’ is the most defeatist sentence in fitness. And it confuses two completely different numbers.
Ceiling vs slope
Your ceiling is the maximum strength your body can ever reach. That number is mostly genetic. Your slope is how fast you climb from where you are today. That number is almost entirely behavioural.
Almost nobody on earth is anywhere near their ceiling. So the slope is the only number that matters in practice.
What you can actually expect
- Untrained adults typically double their starting strength on the Big Five in 12–18 months of HIT.
- Most trainees keep adding weight to the bar for 5–10 years before progress slows.
- Even after that, maintenance is the gift: you keep what you built for decades.
Why the slope is what protects your last 20 years
Whether your peak is impressive or modest is irrelevant at 80. What matters is whether you carried enough muscle into your 70s to stand up unassisted, to catch yourself when you trip, to carry a grandchild. Slope, not ceiling, decides that.
Intense Fit is built to maximise slope with the smallest possible time cost. The rest is biology. And biology is on your side.
