Why does power output decrease at high pedaling rates during sprint cycling?

@article{Samozino2007WhyDP,
  title={Why does power output decrease at high pedaling rates during sprint cycling?},
  author={Pierre Samozino and Nicolas Horvais and Fr{\'e}d{\'e}rique Hintzy},
  journal={Medicine and science in sports and exercise},
  year={2007},
  volume={39 4},
  pages={
          680-7
        }
}
PURPOSE The objective of this study was to partly explain, from electromyographical (EMG) activity, the decrease in power output beyond optimal pedaling rate (PRopt) during sprint cycling. METHODS Eleven cyclists performed four 8-s nonisokinetic sprints on a cycle ergometer against four randomized friction loads (0.5, twice 0.75, and 0.9 N x kg(-1) of body mass). Power output and EMG activity of both right and left gluteus maximus, rectus femoris, biceps femoris, and vastus lateralis were… CONTINUE READING

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Relation between Peak Power Output in Sprint Cycling and Maximum Voluntary Isometric Torque Production.

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