Eleven male subjects performed nine 12-min bouts of bicycle ergometry work at 25 75 and 125 W and at three tempos. One tempo was freely chosen and two were imposed at 20 faster and 20 slower than the preferred tempo for each subject. Increased work loads did not change the preferred tempo. Tempo variability expressed as the coefficient of variation also remained constant at different loads. Pedalling rate did not affect mechanical efficiency. It was concluded that mechanical efficiency did not play a major role in determing preferred tempo.
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