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Training Age Gains Curves

Year 1: 20-25 lbs. Year 2: 10-12. Year 3: 5-7. Year 5+: 1-3. Drug-free male average.

A free, animated training age gains curves you can read here or embed on any website, from Scrollchart.

Training Age Gains Curves

Training Age Gains CurvesLyle McDonald model: annual lean-mass gain roughly halves each year, drug-free male averageHalving ratio reflects diminishing neural and structural headroom as the trainee approaches their genetic ceiling

Annual lean-mass gain bars by training year - the McDonald model. Bars halve roughly each year.

Good for

  • Bodybuilding articles setting realistic year-by-year expectations
  • Beginner explainers on why the first year delivers so much visible change
  • Posts comparing natural progress to genetic-ceiling and FFMI content

Source & accuracy

This training age gains curves is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.

How strength gains taper over years

Training age, the cumulative time a person has trained seriously, predicts how quickly they can still expect to add strength. The typical pattern is a steep curve early that flattens progressively: large jumps in lifts during the first year, smaller additions in the second, and increasingly modest yearly gains beyond that.

Illustrative ranges sometimes quoted for a drug-free male on a major lift might be on the order of twenty-plus pounds added in year one, around half that in year two, and only a handful of pounds per year after several years of consistent training.

Why the numbers are averages

Any specific figure is a population average that hides wide individual variation. Genetics, age at which training began, sex, body size, nutrition, sleep, recovery, and program design all shift the curve up or down, and women, older beginners, and lighter individuals will see different absolute numbers.

The reliable message is the shape, not the digits: progress is front-loaded and demands more patience and precision as training age accumulates. Treat published curves as orientation rather than personal targets. This is general educational information, not coaching advice.

Embed this diagram

Add this animated training age gains curves to your own site. Copy one line of HTML, or use the embed builder for theme and sizing options.

Reference

What this is
A free, embeddable, animated training age gains curves for any website.
Who uses it
Fitness blogs, Bodybuilding & physique sites.
How to embed
Copy one line of HTML. No signup. No watermark. Works in WordPress, Webflow, Ghost, Substack, plain HTML.
File size
iframe embed, ~80 KB gzipped (loads on demand, does not block your page paint).
License
Free forever. Editorial explainer text included; updated centrally over time.

Embed format options

Copy the universal HTML snippet, the WordPress shortcode, or an iframe fallback - see the WordPress plugin page for details. Any format keeps the same Core Web Vitals profile and the same explainer text.

Embed snippet
<div data-scrollchart="training-age-curves" data-scrollchart-v="1"></div>
<script src="https://scrollchart.com/embed.js" async></script>

Frequently asked questions

Where can I get a free animated "Training Age Gains Curves" for my website?
Scrollchart provides "Training Age Gains Curves" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
How do I embed a training age gains curves diagram in a health or wellness blog?
Copy the HTML snippet from the Scrollchart diagram page and paste it into any post or page in your CMS. It works in WordPress, Webflow, Ghost, Substack, and plain HTML without any plugin or account. The diagram renders as animated SVG directly in your page, so search engines can index the accompanying explainer text.