Abstract
The effect of amphetamine sulphate and amobarbital on maximal physical performance was examined.
Each subject underwent on two different occasions a test on a bicycle ergometer, consisting of a series of short intermittent exercises of maximal character, the CSET (Cycling Strength and Endurance Test).
The 34 male subjects tested were divided into three groups (A, B, and C) on the basis of their results of the first test. Before the second test started, group A was given amphetamine sulphate, group B amobarbital and group C placebo. The final performances in the CSET improved under the influence of amphetamine, but the initial ones did not. After treatment with amobarbital the performance decreased. These results may be interpreted as effects on processes which are similar to those influenced by reduced performance demands, and which are related to work motivation.
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This investigation was partly supported by a grant from the Swedish Council for Social Science Research, and partly by one from the Bank of Sweden Tercentenary Fund.
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Borg, G., Edström, CG., Linderholm, H. et al. Changes in physical performance induced by amphetamine and amobarbital. Psychopharmacologia 26, 10–18 (1972). https://doi.org/10.1007/BF00421914
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DOI: https://doi.org/10.1007/BF00421914