Thesis-1988-Lakomy.pdf (7.66 MB)
Measurement of external power output during high intensity exercise
thesis
posted on 2010-12-03, 14:41 authored by Henryk K.A. LakomyFriction-loaded cycle ergometers are widely used to measure the work done in short-duration high-intensity exercise. This work is calculated conventionally from the product of flywheel speed and resistive load. This method assumes the flywheel to revolving at a constant speed and does not take into account the work required to accelerate it (uncorrected method). This study examines the possible error resulting from such an assumption. and a new method of calculation is proposed (corrected method). This new method required high frequency logging of the flywheel speed by a microcomputer. Statistical comparison of the two methods of calculation for a 30s maximal sprint showed: (1) that when no correction is made for flywheel acceleration peak power output is greatly underestimated; (2) the time taken to reach peak power is shorter when corrected values are used; (3) the instantaneous values of power throughout the test are different: (4) the total work done during the 30s is independent of the method of calculation. [Continues.]
Funding
Sports Council
History
School
- Sport, Exercise and Health Sciences
Publisher
Loughborough University of TechnologyRights holder
© H.K.A. LakomyPublication date
1988Notes
Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.EThOS Persistent ID
uk.bl.ethos.387866Language
- en