How you should train depends less on your calendar age than on your training age: the consistent, structured work you have accumulated in your sport. This tool estimates your effective training age and matches it to the periodisation model that will keep you progressing.
How it works
Your raw years are multiplied by a consistency factor to give an effective training age, which then maps to a category and a recommended model:
effective years = raw years × consistency factor
high consistency ×1.0 moderate ×0.7 low ×0.4
< 1 yr → Novice → linear progression
1–3 yr → Intermediate → undulating / weekly periodisation
3–5 yr → Advanced → block periodisation
≥ 5 yr → Elite → conjugate / specialised blocks
The discount for inconsistency reflects that adaptation accrues from regular training, not the passage of time. Two disciplined years beat four sporadic ones.
Example and tips
A lifter with four calendar years of fairly consistent (×0.7) training has an effective training age of about 2.8 years — intermediate — and is best served by undulating periodisation rather than the linear progression that worked as a novice. As you advance, expect gains to slow and your programming to need more variety; this is normal, not a sign you are doing something wrong.