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Related Experiment Videos

Paced effort and all-out 30-second power tests

B R MacIntosh1, P MacEachern

  • 1Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Alberta, Canada. brian@kin.ucalgary.ca

International Journal of Sports Medicine
|January 27, 1998
PubMed
Summary

Mean power output in a 30-second all-out cycling test was not significantly different from a paced effort test. Optimal resistance for peak power output showed considerable latitude for mean power output in this test duration.

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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Biomechanics

Background:

  • Assessing maximal power output is crucial in sports performance.
  • Understanding the optimal testing conditions for short-duration power output is essential for accurate physiological assessment.

Purpose of the Study:

  • To compare mean power output between a 30-second all-out effort test and a paced effort test.
  • To investigate the effect of different resistance loads on mean power output during a 30-second cycling test.

Main Methods:

  • Nine male athletes performed 30-second all-out and paced effort tests on a Monark cycle ergometer.
  • Optimal resistance for peak power was determined, and subsequent tests used 80%, 90%, and 100% of this resistance.
  • Pacing involved velocity feedback to target specific percentages of optimal velocity.

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Main Results:

  • No significant difference was found between the best all-out test (772 W) and the best paced effort test (787 W).
  • Mean power output at 90% (736 W) and 100% (766 W) of optimal resistance did not differ significantly.
  • Mean power output was significantly lower at 80% of optimal resistance (722 W).

Conclusions:

  • A paced effort test does not yield greater mean power output over 30 seconds compared to an all-out test.
  • There is a wide range of optimal resistance for achieving maximal mean power output in a 30-second cycling test.