Vol. 88, Issue 1, 165-172, January 2000
Effect of acute postexercise ethanol intoxication on the
neuroendocrine response to resistance exercise
L. Perry
Koziris1,
William J.
Kraemer2,
Scott E.
Gordon3,
Thomas
Incledon4, and
Howard G.
Knuttgen4
1 Department of Kinesiology,
Health Promotion, and Recreation, University of North Texas,
Denton, Texas 76203; 2 Human Performance
Laboratory, Ball State University, Muncie, Indiana 47306;
3 Department of Integrative
Biology, University of Texas Health Science Center at Houston,
Houston, Texas 77030; and 4 Center
for Sports Medicine, The Pennsylvania State University, University
Park, Pennsylvania 16802
This
investigation was conducted to determine the effect of postexercise
ethanol intoxication (21.97 ± 1.09 mmol/l blood) on the response of
selected aspects of the neuroendocrine system to a resistance exercise
(Ex) session. Nine resistance-trained men (25.0 ± 1.4 yr, 179.4 ± 3.4 cm, 79.7 ± 3.3 kg) were used to compare three 3-day
treatments: control, Ex, and ethanol after exercise (ExEt). Blood was
collected serially from an antecubital vein before exercise,
immediately after exercise, and for pooled analysis at 20-40 (2 samples), 60-120 (4 samples), and 140-300 (9 samples) min
after exercise on day 1 and in the
morning (2 samples each) on days 2 and
3. Ethanol did not increase
circulating epinephrine, norepinephrine, or cortisol concentration
(Cort) above Ex elevations. At 60-120 min, only ExEt Cort was
greater than control Cort. Concentrations of testosterone, luteinizing hormone, and corticotropin were not affected by either treatment. It is
concluded that, although this blood ethanol concentration is
insufficient to acutely increase Cort above that caused by Ex alone, it
appears that ethanol may have a prolonged effect beyond the Ex
response. This blood ethanol concentration does not further stimulate
the sympathoadrenal system during the postexercise response.
anabolic; catabolic; alcohol; lactate; stress response
