Influence Of Duty Cycle On The Time Course Of Muscle Fatigue And The Onset Of Neuromuscular Compensation During Exhaustive Dynamic Isolated Limb Exercise.
Christopher W Sundberg, Matthew W. Bundle
Published 2015 · Medicine, Biology
Download PDFAnalyze on Scholarcy
We investigated the influence of altered muscle duty cycle on the performance decrements and neuromuscular responses occurring during constant-load, fatiguing bouts of knee extension exercise. We experimentally altered the durations of the muscularly inactive portion of the limb movement cycle and hypothesized that greater relative durations of inactivity within the same movement task would 1) reduce the rates and extent of muscle performance loss and 2) increase the forces necessary to trigger muscle fatigue. In each condition (duty cycle = 0.6 and 0.3), male subjects [age = 25.9 ± 2.0 yr (SE); mass = 85.4 ± 2.6 kg], completed 9-11 exhaustive bouts of two-legged knee extension exercise, at force outputs that elicited failure between 4 and 290 s. The novel duty cycle manipulation produced two primary results; first, we observed twofold differences in both the extent of muscle performance lost (DC0.6 = 761 ± 35 N vs. DC0.3 = 366 ± 49 N) and the time course of performance loss. For example, exhaustive trials at the midpoint of these force ranges differed in duration by more than 30 s (t0.6 = 36 ± 2.6 vs. t0.3 = 67 ± 4.3 s). Second, both the minimum forces necessary to exceed the peak aerobic capacity and initiate a reliance on anaerobic metabolism, and the forces necessary to elicit compensatory increases in electromyogram activity were 300% greater in the lower vs. higher duty cycle condition. These results indicate that the fatigue-induced compensatory behavior to recruit additional motor units is triggered by a reliance on anaerobic metabolism for ATP resynthesis and is independent of the absolute level or fraction of the maximum force produced by the muscle.
This paper references
Theoretical and practical considerations in harnessing manpower
MJ Dawson (1977)
Muscle blood flow at onset of dynamic exercise in humans.
Göran Rådegran (1998)
A comparison of central aspects of fatigue in submaximal and maximal voluntary contractions.
Janet L. Taylor (2008)
Biomechanical analyses of selected events at the 12th IAAF World Championships in Athletics, International Association of Athletics Federations
H. Hommel (2009)
Distinct profiles of neuromuscular fatigue during muscle contractions below and above the critical torque in humans.
Mark Burnley (2012)
Recruitment order of motor units in human vastus lateralis muscle is maintained during fatiguing contractions.
Alexander Adam (2003)
Determination of Critical Power Using a 3-min All-out Cycling Test
Ian Shrier (2008)
Effects of load magnitude on muscular activity and tissue oxygenation during repeated elbow flexions until failure
Stéphane Baudry (2013)
Influence of duty cycle on the power-duration relationship: Observations and potential mechanisms
Ryan M Broxterman (2014)
Physiological Measurements of Metabolic Functions in Man
E. Lovell Becker (2015)
Rat mast cells superfused with isotonic solutions release histamine, probably via intracellular cation exchange K+ in equilibrium Hi+ ions.
Börje Uvnäs (1986)
Instrumentation array for biomechanical reproducibility - biomed 2010.
Steven F. Barrett (2010)
Cellular mechanisms regulating protein synthesis and skeletal muscle hypertrophy in animals.
Mitsunori Miyazaki (2009)
Sprint performance-duration relationships are set by the fractional duration of external force application.
Peter G. Weyand (2006)
High-speed running performance: a new approach to assessment and prediction.
Matthew W. Bundle (2003)
Generation of Maxwell displacement current from spread monolayers containing azobenzene
Mitsumasa Iwamoto (1992)
Ermittlung von Erholungspausen für statische Arbeit des Menschen
Walter Rohmert (2004)
Determination of maximal power output at neuromuscular fatigue threshold.
Toshio Moritani (1993)
Human critical power-oxygen uptake relationship at different pedalling frequencies.
Tyler Barker (2006)
Muscle blood f low at onset of dynamic exercise in humans.
Göran Rådegran (1998)
Muscle metabolic responses to exercise above and below the "critical power" assessed using 31P-MRS.
Andrew M Jones (2008)
Fatigue and exhaustion in chronic hypobaric hypoxia: influence of exercising muscle mass.
Bengt Kayser (1994)
A metabolic basis for impaired muscle force production and neuromuscular compensation during sprint cycling.
Matthew W. Bundle (2006)
Relation between power and endurance for treadmill running of short duration.
Will G Hopkins (1989)
Quantitation of progressive muscle fatigue during dynamic leg exercise in humans.
Charles S. Fulco (1995)
Influence of hyperoxia on muscle metabolic responses and the power-duration relationship during severe-intensity exercise in humans: a 31P magnetic resonance spectroscopy study.
Anni Vanhatalo (2010)
The biological limits to running speed are imposed from the ground up.
Peter G. Weyand (2010)
International Association of Athletics Federations World records, and athlete best performances
R60 INFLUENCE OF DUTY CYCLE ON MUSCLE PERFORMANCE LOSS
ATP production and efficiency of human skeletal muscle during intense exercise: effect of previous exercise.
Jens Bangsbo (2001)
Critical power as a measure of physical work capacity and anaerobic threshold.
Toshio Moritani (1981)
Critical power: implications for determination of V˙O2max and exercise tolerance.
Andrew M Jones (2010)
The regulation of experiments on animals in the United Kingdom.
Rankin Jd (1986)
Dynamic knee extension as model for study of isolated exercising muscle in humans.
P Andersen (1985)
Relating mechanics and energetics during exercise.
Taylor Cr (1994)
The Physiological Basis of Athletic Records
A. V. Hill (1925)
Impairment of neuromuscular propagation during human fatiguing contractions at submaximal forces.
Andrew J. Fuglevand (1993)
Human muscle performance and PCr hydrolysis with varied inspired oxygen fractions: a 31P-MRS study.
Michael C Hogan (1999)
Pedal trajectory alters maximal single-leg cycling power.
James C Martin (2002)
Human muscle power generating capability during cycling at different pedalling rates.
Jerzy A Zoladz (2000)
Behavior of motor units in human biceps brachii during a submaximal fatiguing contraction.
S. J. Garland (1994)
American College of Sports Medicine position stand. Exercise and physical activity for older adults.
Wojtek Jan Chodzko-Zajko (2009)
Effect of temperature on skeletal muscle energy turnover during dynamic knee-extensor exercise in humans.
Richard A. Ferguson (2006)
The extraction of neural strategies from the surface EMG.
Dario Farina (2004)
Does the application of ground force set the energetic cost of cross-country skiing?
Matthew J. Bellizzi (1998)
Metabolic and respiratory profile of the upper limit for prolonged exercise in man.
David C Poole (1988)
The relation between force and integrated electrical activity in fatigued muscle.
Robert G. Edwards (1956)
Mechanical Power output from Striated Muscle during Cyclic Contraction
Robert K. Josephson (1985)
Motor unit behaviour and contractile changes during fatigue in the human first dorsal interosseus.
Alain Carpentier (2001)
Estimation of muscle fatigue using surface electromyography and near-infrared spectroscopy.
Joachim Taelman (2011)
Energetics of high-speed running: integrating classical theory and contemporary observations.
Peter G. Weyand (2005)
Sprint Exercise Performance: Does Metabolic Power Matter?
Matthew W. Bundle (2012)
Sex differences in the fatigability of arm muscles depends on absolute force during isometric contractions.
Sandra K Hunter (2001)
Fatigue of submaximal static contractions.
B. Bigland-ritchie (1986)
Neurobiology of muscle fatigue.
Roger M. Enoka (1992)
Changes in muscle contractile properties and neural control during human muscular fatigue.
B. Bigland-ritchie (1984)
Effect of tension and timing of contraction on the blood flow of the diaphragm.
François Bellemare (1983)
Amplitude of the surface electromyogram during fatiguing isometric contractions.
Alexander Lind (1979)
Cellular and Molecular Mechanisms of Bone Remodeling*
Liza Jane Raggatt (2010)
This paper is referenced by
Power–duration relationship: Physiology, fatigue, and the limits of human performance
Mark Burnley (2018)
Sex Differences in Mechanisms of Recovery after Isometric and Dynamic Fatiguing Tasks
Jonathon W. Senefeld (2018)
The Effect of Acidosis on Peak Power After a Simulated 4000-m Individual Pursuit on a Bicycle Ergometer
Mathew Mildenhall (2019)
Maximal Femoral Artery Blood Flow During Cycle Ergometry
Tucker W Squires (2015)
NEUROMUSCULAR RESPONSES TO EXHAUSTIVE BOUTS OF SPRINT RUNNING IN NON-STEADY SPEED TRIALS
Brandon C Gruver (2018)
Bioenergetic basis for the increased fatigability with ageing.
Christopher W Sundberg (2019)
Bioenergetic basis of skeletal muscle fatigue.
Christopher W Sundberg (2019)
Discipline‐Specific Canine Sports Medicine Applications
Deborah Marie Gross (2017)
Rates of performance loss and neuromuscular activity in men and women during cycling: evidence for a common metabolic basis of muscle fatigue.
Christopher W Sundberg (2017)
Mechanisms for the age-related increase in fatigability of the knee extensors in old and very old adults.
Christopher W Sundberg (2018)
Maximal Sprint Speed and the Anaerobic Speed Reserve Domain: The Untapped Tools that Differentiate the World’s Best Male 800 m Runners
Gareth N. Sandford (2018)