Key result
Physical work loads of 750 kpm/min significantly increased adrenaline and noradrenaline output, while heart rate, systolic pressure, and subjective effort increased consistently with work load.
Why the study?
Does increasing physical work load affect catecholamine excretion, cardiovascular functions, and subjective effort in healthy males?
Population
10 healthy male subjects
Comparison
Physical work loads on a bicycle ergometer vs Control condition
Design
Other
Authors
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Supports graded exercise responses in healthy males; leaves open translation to clinical populations or interventions.
Does increasing physical work load affect catecholamine excretion, cardiovascular functions, and subjective effort in healthy males?
High physical work loads significantly increase catecholamine excretion, while heart rate, systolic pressure, and subjective effort increase dose-dependently with work load in healthy males.
Frankenhaeuser et al. (1969) studied Healthy (n=10). Physical work loads on a bicycle ergometer vs. Control condition was evaluated on Catecholamine excretion, cardiovascular functions, and subjective effort. Physical work loads of 750 kpm/min significantly increased adrenaline and noradrenaline output, while heart rate, systolic pressure, and subjective effort increased consistently with work load.
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