Influence of endurance exercise training status and gender on postexercise hypotension.

  • Senitko A
  • Charkoudian N
  • Halliwill J
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In sedentary individuals, postexercise hypotension after a single bout of aerobic exercise is due to a peripheral vasodilation. Endurance exercise training has the potential to modify this response and perhaps reduce the degree of postexercise hypotension. We tested the hypothesis that endurance exercise-trained men and women would have blunted postexercise hypotension compared with sedentary subjects but that the mechanism of hypotension would be similar (i.e., vasodilation). We studied 16 endurance-trained and 16 sedentary men and women. Arterial pressure, cardiac output, and total peripheral resistance were determined before and after a single 60-min bout of exercise at 60% peak oxygen consumption. All groups exhibited a similar degree of postexercise hypotension (approximately 4-5 mmHg; P < 0.05 vs. preexercise). In sedentary men and women, hypotension was the result of vasodilation (Deltaresistance: -8.9 +/- 2.2%). In endurance-trained women, hypotension was also the result of vasodilation (-8.1 +/- 4.1%). However, in endurance-trained men, hypotension was the result of a reduced cardiac output (-5.2 +/- 2.4%; P < 0.05 vs. all others) and vasodilation was absent (-0.7 +/- 3.3%; P < 0.05 vs. all others). Thus we conclude the magnitude of postexercise hypotension is similar in sedentary and endurance-trained men and women but that endurance-trained men and women achieve this fall in pressure via different mechanisms.

Author-supplied keywords

  • Adult
  • Cardiac Output
  • Exercise
  • Exercise: physiology
  • Female
  • Humans
  • Hypotension
  • Hypotension: etiology
  • Hypotension: physiopathology
  • Male
  • Physical Education and Training
  • Physical Endurance
  • Reference Values
  • Sex Characteristics
  • Vasodilation

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  • Annette N Senitko

  • Nisha Charkoudian

  • John R Halliwill

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