Learn More
We hypothesized that the elevated primary O(2) uptake (VO(2)) amplitude during the second of two bouts of heavy cycle exercise would be accompanied by an increase in the integrated electromyogram (iEMG) measured from three leg muscles (gluteus maximus, vastus lateralis, and vastus medialis). Eight healthy men performed two 6-min bouts of heavy leg cycling(More)
Whether the transition in fatigue processes between "low-intensity" and "high-intensity" contractions occurs gradually, as the torque requirements are increased, or whether this transition occurs more suddenly at some identifiable "threshold", is not known. We hypothesized that the critical torque (CT; the asymptote of the torque-duration relationship)(More)
To determine whether the asymptote of the torque-duration relationship (critical torque) could be estimated from the torque measured at the end of a series of maximal voluntary contractions (MVCs) of the quadriceps, eight healthy men performed eight laboratory tests. Following familiarization, subjects performed two tests in which they were required to(More)
The Journal of Applied Physiology (ISSN-8750-7587) is published online twice monthly and bound once in print monthly (two volumes per year) by the American Physiological Society, 9650 Rockville Pike, Bethesda, MD 20814-3991 and online at www.jap.org (ISSN 1522-1601). Subscription Prices (postpaid). For institutional print and online pricing, please see The(More)
Neuromuscular fatigue increases the amplitude of fluctuations in torque output during isometric contractions, but the effect of fatigue on the temporal structure, or complexity, of these fluctuations is not known. We hypothesised that fatigue would result in a loss of temporal complexity and a change in fractal scaling of the torque signal during isometric(More)
_ VO 2max is not altered by self-pacing during incremental exercise: reply to the letter of Alexis R. Mauger Dr. Mauger argues that ''several methodological differences in study design'' can explain why we (Chidnok et al. 2012) were unable to reproduce his findings that a self-paced incremental test produced a higher _ VO 2 max than a conventional(More)
  • Abbott, David H Abman, Steven H Acker, Helmut Adhihetty, Peter Agostoni, Piergiuseppe Ahima +494 others
  • 2011
Reviewers The Publications Committee of the American Physiological Society gratefully acknowledges the services of the following reviewers who assisted the Editorial Board in the reviews of manuscripts. (invited only) have specific instructions that you should review if you are submitting to them. The American Physiological Society (APS) Journals seek(More)
We tested the hypothesis that incremental cycling to exhaustion that is paced using clamps of the rating of perceived exertion (RPE) elicits higher $$ \dot{V}_{{{\text{O}}_{2} { \max }}} $$ values compared to a conventional ramp incremental protocol when test duration is matched. Seven males completed three incremental tests to exhaustion to measure $$(More)
We used extreme pedal rates to investigate the influence of muscle fibre recruitment on pulmonary V(O)(2) kinetics during unloaded-to-moderate-intensity (U-->M), unloaded-to-high-intensity (U-->H), and moderate-intensity to high-intensity (M-->H) cycling transitions. Seven healthy men completed transitions to 60% of the difference between gas-exchange(More)
The complexity of knee extensor torque time series decreases during fatiguing isometric muscle contractions. We hypothesized that because of peripheral fatigue, this loss of torque complexity would occur exclusively during contractions above the critical torque (CT). Nine healthy participants performed isometric knee extension exercise (6 s of contraction,(More)