Hormonal and metabolic response to three types of exercise of equal duration and external work output

  title={Hormonal and metabolic response to three types of exercise of equal duration and external work output},
  author={W. P. Vanhelder and Manny W Radomski and Robert C. Goode and Kathleen K. Casey},
  journal={European Journal of Applied Physiology and Occupational Physiology},
SummaryFive normal men, aged 20–30 years, participated in three types of exercise (I, II, III) of equal duration (20 min) and total external work output (120–180 kJ) separated by ten days of rest. Exercises consisted of seven sets of squats with barbells on the shoulders (I; Maximal Power Output $$\dot W$$ max=600−900 W), continuous cycling at 50 rev · min−1 (II; $$\dot W$$ max=100−150 W) and seven bouts of intermittent cycling at 70 rev · min−1 (III; $$\dot W$$ max=300−450 W).Plasma cortisol… 
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No physiologically significant correlation was found between hGH and metabolite concentrations, rectal T, or O2 deficit, which is interpreted to mean that hGH response to work is not directly related to "anaerobiosis".
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Metabolic adaptation to prolonged exercise
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Substrate turnover during prolonged exercise in man. Splanchnic and leg metabolism of glucose, free fatty acids, and amino acids.
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Metabolic and hormonal effects of muscular exercise in juvenile type diabetics
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[Effect of muscular exercise on day-time variations of plasma cortisol and glucose in normal men (author's transl)].
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The role of glucocorticoids in exercise.
  • G. Tharp
  • Biology
    Medicine and science in sports
  • 1975
The changes in GC response during training appear to be produced by decreased responsiveness of the adrenal cortex itself to ACTH stimulation and possibly by adaptation of the hypothalamus-hypophysis axis which reduces the ACTH released in response to stress.