Adipose tissue blood flow during prolonged, heavy exercise


Subcutaneous adipose tissue blood flow (ATBF) was examined in 8 subjects during 6 h exercise on a bicycle ergometer. The initial work load was 118 W corresponding to about 50% of maximal work capacity. The oxygen uptake increased from 0.26 l ·min−1 at rest to about 1.6l·min−1 during work. In 7 subjects ATBF increased, in 1 it remained constant. After 3 h exercise ATBF at an average reached values 3–4 times the control value. This increase was maintained for the remaining work periods. The increase was significant at the 5% level. Plasma free fatty acids increased 7-, plasma glycerol 10-fold during work.

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Correspondence to Joop Madsen.

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Bülow, J., Madsen, J. Adipose tissue blood flow during prolonged, heavy exercise. Pflugers Arch. 363, 231–234 (1976).

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Key words

  • Adipose tissue blood flow
  • Exercise
  • Free fatty acids
  • Glucose
  • Glycerol
  • Lactic acid
  • Man
  • Oxygen uptake
  • Radioactive tracer washout technique
  • Respiratory exchange coefficient
  • 133Xenon