---
library_name: pyaging
tags:
- pyaging
- aging-clock
- biology
- dna-methylation
---

# dnamfitage

Sex-specific Klemera–Doubal biological-age composite that calculates DNAm gait speed, grip strength, VO2max, and original DNAmGrimAge internally from methylation, age, and female inputs.

Model weights retain the original authors' terms; the pyaging software license does not relicense them.

| | |
|---|---|
| **Predicts** | physical-fitness biological age |
| **Species** | Homo sapiens |
| **Tissue** | whole blood |
| **Data type** | DNA methylation |
| **Model type** | Klemera–Doubal composite |
| **Year** | 2023 |

## Use with pyaging

```python
import pyaging as pya

pya.pred.predict_age(adata, ["dnamfitage"])
```

Browse every clock in the [pyaging Clock Catalogue](https://pyaging.readthedocs.io).

## Citation

McGreevy, K. M., et al. “DNAmFitAge: biological age indicator incorporating physical fitness.” Aging 15(10): 3904–3938 (2023).

https://doi.org/10.18632/aging.204538