Muscle contraction-blood flow interactions during upright knee extension exercise in humans.

  title={Muscle contraction-blood flow interactions during upright knee extension exercise in humans.},
  author={Barbara J. Lutjemeier and Akira Miura and Barry W Scheuermann and Shunsaku Koga and Dana K Townsend and Thomas Barstow},
  journal={Journal of applied physiology},
  volume={98 4},
To test for evidence of a muscle pump effect during steady-state upright submaximal knee extension exercise, seven male subjects performed seven discontinuous, incremental exercise stages (3 min/stage) at 40 contractions/min, at work rates ranging to 60-75% peak aerobic work rate. Cardiac cycle-averaged muscle blood flow (MBF) responses and contraction-averaged blood flow responses were calculated from continuous Doppler sonography of the femoral artery. Net contribution of the muscle pump was… 

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