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Human muscle metabolism during intermittent maximal exercise
thesis
posted on 2010-11-15, 10:28 authored by Georgios C. GaitanosMany daily activities and sporting events require an individual to
perform brief periods of maximal exercise (i.e. <10s) interrupted by
limited periods of recovery. In the first study an intermittent
maximal exercise test was used to examine the decline in power output
with successive exercise periods and identify the changes in the
metabolic environment associated with such exercise. The exercise
protocol consisted of ten 6s maximal sprints with 30s recovery between
each sprint on a cycle ergometer. The results suggest that
phosphocreatine (PCr) and anaerobic glycolysis provided the majority of
the energy to sustain an average power output (MPO) of 870.1 ±159.2W in
the first sprint. In the final sprint, however, no change in lactate
concentration was apparent, yet the average power output was still 73%
of that in the initial sprint. It was suggested that the energy was
derived from PCr degradation and oxidative metabolism. [Continues.]
History
School
- Sport, Exercise and Health Sciences
Publisher
© G.C. GaitanosPublication date
1990Notes
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.308078Language
- en