Responses of plasma human atrial natriuretic factor to high intensity submaximal exercise in the heat

William J. Kraemer, Lawrence E. Armstrong, Roger W. Hubbard, Louis J. Marchitelli, Natalie Leva, Paul Rock, Joseph E. Dziados

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

No data exists regarding responses of human atrial natriuretic factor (ANF) to exercise in the heat. The purpose of this study was to examine the responses of plasma ANF to high intensity submaximal (71%±0.9 {Mathematical expression}) exercise in the heat over an eight day acclimation period. Fourteen healthy males volunteered to participate in the study. Subjects performed intermittent exercises on a treadmill (0% grade) during 50 min of each 100 min trial in an environmental chamber maintained at 41.2±0.5° C, 39.0±1.7% relative humidity. Blood was obtained from an antecubital vein after standing 20 min in the heat prior to exercise, and immediately after exercise. Measures were compared on days 1, 4 and 8. ANF did not change pre- to post-exercise nor did it change over the eight day heat acclimation period despite other heat acclimation adaptations. Conversely, plasma aldosterone (ALDO), renin activity (PRA) and cortisol (COR) all increased (p<0.05) pre- to post-exercise on each day but again no changes were observed over the eight day period. These data support that ANF may not increase when ALDO and PRA increases are observed.

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalEuropean Journal of Applied Physiology and Occupational Physiology
Volume57
Issue number4
DOIs
StatePublished - 1 Mar 1988

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Atrial Natriuretic Factor
Acclimatization
Hot Temperature
Aldosterone
Humidity
Renin
Hydrocortisone
Veins

Keywords

  • Aldosterone
  • Atrial natriuretic factor
  • Cortisol
  • Heat
  • Males
  • Plasma renin activity

Cite this

Kraemer, William J. ; Armstrong, Lawrence E. ; Hubbard, Roger W. ; Marchitelli, Louis J. ; Leva, Natalie ; Rock, Paul ; Dziados, Joseph E. / Responses of plasma human atrial natriuretic factor to high intensity submaximal exercise in the heat. In: European Journal of Applied Physiology and Occupational Physiology. 1988 ; Vol. 57, No. 4. pp. 399-403.
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Responses of plasma human atrial natriuretic factor to high intensity submaximal exercise in the heat. / Kraemer, William J.; Armstrong, Lawrence E.; Hubbard, Roger W.; Marchitelli, Louis J.; Leva, Natalie; Rock, Paul; Dziados, Joseph E.

In: European Journal of Applied Physiology and Occupational Physiology, Vol. 57, No. 4, 01.03.1988, p. 399-403.

Research output: Contribution to journalArticle

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