{
 "approved_by_author": "\u231b",
 "citation": "McGreevy, K. M., et al. \u201cDNAmFitAge: biological age indicator incorporating physical fitness.\u201d Aging 15(10): 3904\u20133938 (2023).",
 "citations": 105,
 "citations_date": "2026-10-02",
 "clock_name": "dnamfitage",
 "data_type": "DNA methylation",
 "doi": "https://doi.org/10.18632/aging.204538",
 "journal": "Aging",
 "last_author": "Steve Horvath",
 "model_type": "Klemera\u2013Doubal composite",
 "n_features": 1343,
 "notes": "Sex-specific Klemera\u2013Doubal biological-age composite that calculates DNAm gait speed, grip strength, VO2max, and original DNAmGrimAge internally from methylation, age, and female inputs.",
 "platform": [
  "Illumina 450K"
 ],
 "population": "adults",
 "predicts": [
  "physical-fitness biological age"
 ],
 "reference_values": true,
 "research_only": null,
 "species": "Homo sapiens",
 "tissue": [
  "whole blood"
 ],
 "training_target": [
  "biological age"
 ],
 "unit": [
  "years"
 ],
 "version": "0.5.7",
 "year": 2023
}