@misc{indiciae13d9c16772bb,
  title = {Heart rate and athletic training.},
  author = {E L Fallen},
  year = {1994},
  doi = {10.1093/cvr/28.2.284b},
  url = {https://pubmed.ncbi.nlm.nih.gov/8143313/},
  note = {Source identifier: 8143313}
}