Breathing 40% O(2) can attenuate postcontraction hyperaemia or muscle fatigue caused by static forearm contraction, depending on timing.

@article{Fordy2012Breathing4O,
  title={Breathing 40% O(2) can attenuate postcontraction hyperaemia or muscle fatigue caused by static forearm contraction, depending on timing.},
  author={Graham R Fordy and Janice M. Marshall},
  journal={Experimental physiology},
  year={2012},
  volume={97 3},
  pages={362-74}
}
Little is known of the role of O(2)-dependent mechanisms in the hyperaemia associated with static muscle contraction or recovery from fatigue. Thus, in recreationally active, young, male subjects, forearm contraction was performed twice at 100% maximal voluntary effort until exhaustion, with a 7 min recovery period, whilst 40% O(2) (hyperoxia) was breathed during the contractions only, or during recovery only, or room air (normoxia) was breathed throughout. When hyperoxia was limited to the… CONTINUE READING