Observed arrival · 2026-09-28
bio.coach turns gym technique into a muscle model
A Spanish-language interactive simulator lets users adjust gym exercises and see estimated muscle effort across the movement.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Spanish-speaking gym-goers comparing exercise technique
- Worth noticing
- Its model uses a force line’s distance from each joint to estimate effort, and labels the result a simplified 2D model.
Field notes
The page explains its calculations through leverage: a force line farther from a joint means more effort for the muscles moving that joint. It also distinguishes the simulator’s relative muscle ranking from exact percentages, which may vary between people. The routine flow asks six questions and offers a PDF or print option; requesting the personalized plan involves sharing contact details.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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