{
  "calculator": "detraining-decay",
  "title": "Detraining Decay Estimator",
  "site": "AI Fit Hub",
  "input": {
    "prior_1rm": 150,
    "training_age_years": 3,
    "weeks_off": 4
  },
  "defaults_used": {},
  "result": {
    "prior1Rm": 150,
    "trainingAgeYears": 3,
    "decayRatePerWeek": 0.013,
    "avgWeeklyLossPct": 0.12,
    "asymptotePctOfPeak": 81,
    "predicted1RmAfterWeeksOff": 149.3,
    "pctLossTotal": 0.5,
    "weeklyTrajectory": [
      {
        "week": 0,
        "predicted1Rm": 150,
        "pctOfPeak": 100,
        "pctLossWeekly": 0
      },
      {
        "week": 1,
        "predicted1Rm": 150,
        "pctOfPeak": 100,
        "pctLossWeekly": 0
      },
      {
        "week": 2,
        "predicted1Rm": 150,
        "pctOfPeak": 100,
        "pctLossWeekly": 0
      },
      {
        "week": 3,
        "predicted1Rm": 149.6,
        "pctOfPeak": 99.8,
        "pctLossWeekly": 0.2
      },
      {
        "week": 4,
        "predicted1Rm": 149.3,
        "pctOfPeak": 99.5,
        "pctLossWeekly": 0.2
      }
    ],
    "retrainingWeeksToPeak": 2
  },
  "provenance": {
    "run": "https://aifithub.io/api/run/detraining-decay?prior_1rm=150&training_age_years=3&weeks_off=4",
    "page": "https://aifithub.io/detraining-decay/",
    "methodology": "https://aifithub.io/methodology/detraining-decay/",
    "contract": "https://aifithub.io/contracts/detraining-decay.json",
    "engine": "https://aifithub.io/engines/detraining-decay.js",
    "engine_sha256": "566bcbe088fc7fbc4d859dfc5013d27ea06c7f8bd1604b190dcd6572d68cb55d",
    "build": "9e8a56a16bda662ba90601b49561a2b176e9c379"
  },
  "disclaimer": "General fitness estimates — not medical advice.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite": "AI Fit Hub, Detraining Decay Estimator (engine 566bcbe088fc), https://aifithub.io/api/run/detraining-decay?prior_1rm=150&training_age_years=3&weeks_off=4"
}