Online citations, reference lists, and bibliographies.

Phosphocreatine Kinetics In Humans During Exercise And Recovery.

D. Mccann, P. Molé, J. Caton
Published 1995 · Medicine

Cite This
Download PDF
Analyze on Scholarcy
Share
System linearity was assessed for exercise induced changes in energetics of forearm exercise. 31P-NMR spectroscopy techniques, with 12.5-s serial measurements of [PCr], [Pi], [ATP], and [H+] were employed during exercise and recovery transitions in four untrained men for moderate (1.7 W) and heavy (3.6 W) exercise. Signal averaging was applied and data were analyzed by regression analysis using a first-order exponential model. The time constants for both [PCr] and [Pi] responses to moderate exercise and recovery were not different both within and between nuclei ranging from 32 to 35 s (P > 0.05). The time constants derived from moderate exercise and recovery, when employed to construct predictive equations for heavy exercise and recovery, did not adequately describe [PCr] dynamics. Underestimation of the net hydrolysis of PCr during heavy exercise was associated with increases in [H+] as predicted by the creatine kinase equilibrium reaction (CKeq). Calculation of [ADP] by CKeq revealed steady state [ADP] was achieved during moderate exercise and during recovery for both intensities much earlier than during heavy exercise. We conclude that the metabolic system does not behave as a linear system. Therefore, the time constant and the net change in [PCr].W-1 must themselves be determined by work dependent combinations of other system variables.



This paper is referenced by
10.1152/AJPCELL.00419.2002
Progressive decrease of intramyocellular accumulation of H+ and Pi in human skeletal muscle during repeated isotonic exercise.
J. Rico-Sanz (2003)
10.1016/J.MRI.2003.07.001
High-energy phosphate metabolism during incremental calf exercise in humans measured by 31 phosphorus magnetic resonance spectroscopy (31P MRS).
M. Schocke (2004)
10.1519/1533-4295(2005)027<0068:RTOTFM>2.0.CO;2
Recovery Time Optimization to Facilitate Motor Learning During Sprint Intervals
Stephen Merlau (2005)
Understanding the Aerobic Dive Limit and Dive Performance of Emperor Penguins: Muscle Oxygen Depletion Patterns and Anaerobic Energy Reserves
Cassondra L Williams (2011)
10.1007/s00421-015-3172-2
Impact of creatine on muscle performance and phosphagen stores after immobilization
Jeremy C. Fransen (2015)
10.1136/bjsm.2009.068007
Effects of resistive load on performance and surface EMG activity during repeated cycling sprints on a non-isokinetic cycle ergometer
R. Matsuura (2009)
10.2114/JPA2.26.51
A 350-S recovery period does not necessarily allow complete recovery of peak power output during repeated cycling sprints.
R. Matsuura (2007)
high-intensity exercise in prepubertal and pubertal Skeletal muscle metabolism during short-term,
C. Gaul (2015)
10.1152/JAPPL.1999.87.2.683
Muscle O(2) consumption by NIRS: a theoretical model.
T. Binzoni (1999)
10.1668/0003-1569(2001)041[0229:GEMANA]2.0.CO;2
Gas Exchange, MRS and NIRS Assessment of Metabolic Transients in Skeletal Muscle1
P. Cerretelli (2001)
10.3389/978-2-88945-271-2
How do Emotions and Feelings Regulate Physical Activity
Darko Jekauc (2017)
10.1519/JSC.0b013e3182764d70
An Adequate Interset Rest Period for Strength Recovery During a Common Isokinetic Test
Ivan N. Blazquez (2013)
10.1152/ajpendo.00355.2015
Regulation of metabolism: the rest-to-work transition in skeletal muscle.
D. Wilson (2015)
CPK INCREASE AS AN OCCULT MARKER OF CEREBROVASCULAR DISEASE: A CASE REPORT
Giovam Battista Rini (2012)
d'exercices de renforcement musculaire
Carole Cometti (2013)
10.1016/S0765-1597(02)00150-8
Déterminants des différentes phases de la cinétique de la consommation d'oxygène chez l'homme Oxygen uptake kinetics during transients and its determinants in humans
S. Perrey (2002)
A DISSERTATION SUBMITTED TO THE FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA BY
B. J. Peterson (2014)
Evaluation of muscle metabolism in individuals with spinal cord injury
Tara K. Mulcahy (2010)
10.1152/japplphysiol.00352.2018
Metabolic homeostasis: Oxidative phosphorylation and the metabolic requirements of higher plants and animals.
David F Wilson (2018)
10.14288/1.0077062
The relationship between an increased aerobic power and the excess post exercise oxygen consumption
Edward W. Cannon (1996)
10.14814/phy2.13327
The thermodynamic basis of glucose‐stimulated insulin release: a model of the core mechanism
David F Wilson (2017)
10.2165/00007256-200232120-00002
Factors Affecting the Rate of Phosphocreatine Resynthesis Following Intense Exercise
Shaun McMahon (2002)
10.2165/00007256-200232140-00003
Oral Creatine Supplementation and Skeletal Muscle Metabolism in Physical Exercise
J. L. Mesa (2002)
10.1086/664698
Muscle energy stores and stroke rates of emperor penguins: implications for muscle metabolism and dive performance.
Cassondra L Williams (2012)
10.1161/01.CIR.98.18.1886
Skeletal muscle metabolism limits exercise capacity in patients with chronic heart failure.
K. Okita (1998)
10.7600/JSPFSM.55.S71
DEVELOPMENT OF ACCUMLATED AND TEMPORARY FATIGUE DURING REPEATED CYCLING SPRINTS(Proceedings of The 8^ Asian Federation of Sports Medicine Congress 2005 Tokyo)
R. Matsuura (2006)
10.1152/japplphysiol.00715.2016
Oxidative phosphorylation: unique regulatory mechanism and role in metabolic homeostasis.
David F Wilson (2017)
10.1113/JP273839
Oxidative phosphorylation: regulation and role in cellular and tissue metabolism.
D. Wilson (2017)
10.1152/jappl.1997.82.1.329
A model for phosphocreatine resynthesis.
A. Nevill (1997)
10.2165/00007256-199927050-00003
Oxygen Uptake Kinetics During Exercise
F. Xu (1999)
10.1152/ajpendo.00512.2015
Regulation of metabolism: the work-to-rest transition in skeletal muscle.
D. Wilson (2016)
10.1016/J.YPMED.2003.09.038
Practical markers of the transition from aerobic to anaerobic metabolism during exercise: rationale and a case for affect-based exercise prescription.
P. Ekkekakis (2004)
See more
Semantic Scholar Logo Some data provided by SemanticScholar