Muscle metabolic responses to exercise above and below the “critical power” assessed using 31P-MRS

AM Jones, DP Wilkerson, F DiMenna… - American journal …, 2008 - journals.physiology.org
We tested the hypothesis that the asymptote of the hyperbolic relationship between work
rate and time to exhaustion during muscular exercise, the “critical power”(CP), represents …

Muscle metabolic responses during high-intensity intermittent exercise measured by 31P-MRS: relationship to the critical power concept

W Chidnok, FJ DiMenna, J Fulford… - American Journal …, 2013 - journals.physiology.org
We investigated the responses of intramuscular phosphate-linked metabolites and pH (as
assessed by 31P-MRS) during intermittent high-intensity exercise protocols performed with …

Muscle metabolic determinants of exercise tolerance following exhaustion: relationship to the “critical power”

W Chidnok, J Fulford, SJ Bailey… - Journal of Applied …, 2013 - journals.physiology.org
We tested the hypothesis that muscle high-energy phosphate compounds and metabolites
related to the fatigue process would be recovered after exhaustion during recovery exercise …

Influence of hyperoxia on muscle metabolic responses and the power–duration relationship during severe‐intensity exercise in humans: a 31P magnetic resonance …

A Vanhatalo, J Fulford, FJ DiMenna… - Experimental …, 2010 - Wiley Online Library
Severe‐intensity constant‐work‐rate exercise results in the attainment of maximal oxygen
uptake, but the muscle metabolic milieu at the limit of tolerance (Tlim) for such exercise …

Similar metabolic perturbations during all‐out and constant force exhaustive exercise in humans: a 31P magnetic resonance spectroscopy study

M Burnley, A Vanhatalo, J Fulford… - Experimental …, 2010 - Wiley Online Library
It is not possible to attain a metabolic steady state during exercise above the so‐called
critical force or critical power. We tested the hypothesis that the muscle metabolic …

Intramuscular determinants of the ability to recover work capacity above critical power

PF Skiba, J Fulford, DC Clarke, A Vanhatalo… - European journal of …, 2015 - Springer
Purpose The primary purpose of this investigation was to compare the recovery of the W′ to
the recovery of intramuscular substrates and metabolites using 31 P-and 1 H-magnetic …

Metabolic effects of training in humans: a 31P-MRS study

JA Kent-Braun, KK McCully… - Journal of applied …, 1990 - journals.physiology.org
The purpose of this study was to determine the feasibility of measuring with 31P nuclear
magnetic resonance the effects of an endurance training program on the high-energy …

Reproducibility assessment of metabolic variables characterizing muscle energetics in Vivo: A 31P‐MRS study

G Layec, A Bringard, Y Le Fur, C Vilmen… - … in Medicine: An …, 2009 - Wiley Online Library
The purpose of the present study was to assess the reliability of metabolic parameters
measured using 31P magnetic resonance spectroscopy (31P MRS) during two standardized …

Muscle metabolic and neuromuscular determinants of fatigue during cycling in different exercise intensity domains

MI Black, AM Jones, JR Blackwell… - Journal of Applied …, 2017 - journals.physiology.org
Lactate or gas exchange threshold (GET) and critical power (CP) are closely associated with
human exercise performance. We tested the hypothesis that the limit of tolerance (Tlim) …

The mechanistic bases of the power–time relationship: muscle metabolic responses and relationships to muscle fibre type

A Vanhatalo, MI Black, FJ DiMenna… - The Journal of …, 2016 - Wiley Online Library
Key points The power‐asymptote (critical power; CP) of the hyperbolic power–time
relationship for high‐intensity exercise defines a threshold between steady‐state and non …