tokens: Eight healthy untrained male volunteers pedalled a cycle ergometer according to two exercise protocols : the first involved step-wise increasing physical exercise to maximal ( MPE ) ; the second involved prolonged ( 35 min ) submaximal physical exercise ( PPE ) at 70% of the individual's maximal oxygen uptake .
folded_tokens: eight healthy untrained male volunteers pedalled a cycle ergometer according to two exercise protocols : the first involved step-wise increasing physical exercise to maximal ( mpe ) ; the second involved prolonged ( 35 min ) submaximal physical exercise ( ppe ) at 70% of the individual's maximal oxygen uptake .
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