@misc{indiciae28aeb0c6627d,
  title = {Are "passive" extension exercises really passive?},
  author = {I Fiebert and C D Keller},
  year = {1994},
  doi = {10.2519/jospt.1994.19.2.111},
  url = {https://pubmed.ncbi.nlm.nih.gov/8148864/},
  note = {Source identifier: 8148864}
}