Overview
- Johanna Puff, 23, resumed training Friday after doctors approved a careful return.
- Her plan starts with a heart‑rate cap of 135 and sessions about one hour every other day during rehab in Bad Endorf.
- She collapsed at an IBU Cup race in Obertilliach in early December, later learned she had heart muscle inflammation, and ended her season.
- She has no fixed timeline, aims to reach normal training by late spring, and says she will not push her body.
- Myocarditis demands slow progress because hard exertion can worsen heart damage and trigger dangerous rhythms.