Planning
Detraining Decay Estimator
Estimate how much of your 1RM a layoff costs, by weeks off and training age, and roughly how long it takes to get it back.
Result
Your 1RM through the layoff
Exponential approach to a floor set by training age.
Week by week
| Week | Predicted 1RM | % of before |
|---|---|---|
| 0 | 150 kg | 100% |
| 1 | 150 kg | 100% |
| 2 | 150 kg | 100% |
| 3 | 149.6 kg | 99.8% |
| 4 | 149.3 kg | 99.5% |
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- Planning Body Recomposition Planner
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- Nutrition TDEE Calculator
Estimate your daily energy expenditure with Mifflin-St Jeor + activity factors.
- Nutrition Macro Calculator
Convert calorie targets into protein, carbs, and fat grams for your goal.
Use it from an agent or code
Any agent can run this calculator by URL: put the inputs in the query string and get JSON back, with the inputs that used defaults and a line to cite (add format=md for markdown). MCP clients reach it through https://aifithub.io/mcp.
https://aifithub.io/api/run/detraining-decay?prior_1rm=150&weeks_off=4&training_age_years=3
In code, import the same module; it runs where you import it, with no request or key.
import { compute } from "https://aifithub.io/engines/detraining-decay.js";Input and output contract, TypeScript types and the guide for agents.