Does thoracic pump influence the cerebral venous return?

@article{Zamboni2012DoesTP,
  title={Does thoracic pump influence the cerebral venous return?},
  author={Paolo Zamboni and Erica Menegatti and Luca Pomidori and Sandra Morovi{\'c} and Angelo Taibi and Anna Maria Malagoni and Annaluisa Cogo and Mauro Gambaccini},
  journal={Journal of applied physiology},
  year={2012},
  volume={112 5},
  pages={
          904-10
        }
}
We assessed the hemodynamic effects induced by the thoracic pump in the intra- and extracranial veins of the cerebral venous system on healthy volunteers. Activation of the thoracic pump was standardized among subjects by setting the deep inspiration at 70% of individual vital capacity. Peak velocity (PV), time average velocity (TAV), vein area (VA), and flow quantification (Q) were assessed by means of echo color Doppler in supine posture. Deep respiration significantly increases PV, TAV, and… 

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