Why the study?
Does beta-adrenergic stimulation alter electrocardiographic T-wave amplitude in healthy men?
Population
12 healthy men
Comparison
Infusion of isoproterenol and propranolol, as… vs Placebo infusion
Design
Other, Counterbalanced, crossover design
Authors
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Requires caution interpreting T-wave amplitude amid beta-adrenergic activity or stress; leaves open its value as a noninvasive autonomic marker.
Does beta-adrenergic stimulation alter electrocardiographic T-wave amplitude in healthy men?
Beta-adrenergic stimulation, whether pharmacological or behavioral, significantly attenuates T-wave amplitude, though this may be secondary to heart rate changes.
Contrada et al. (1989) studied this question.
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