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Amplitude Of The Surface Electromyogram During Fatiguing Isometric Contractions.

A. Lind, J. Petrofsky
Published 1979 · Medicine

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Five voluntee subjects held isometric handgrip contractions at specific submaximal tensions until the required tension could no longer be maintained. At the start of those contractions, the amplitude of the surface electromyogram (EMG) was linearly related to the tension exerted; the amplitude of the EMG increased linearly throughout these substained contractions by a constant amount--about 30% of the maximum. During sustained contractions, brief, intermittent maximal efforts showed that strength declined linearly at all tensions. At 25% maximal voluntary contraction (MVC), there was a linear fall in the EMG amplitude associated with the brief maximal efforts, but the fall in strength was more rapid than the fall in EMG amplitude. At 70% MVC, there was no fall in the EMG amplitude in response to the brief maximal efforts, while the muscle strength fell linearly.



This paper is referenced by
10.1519/JSC.0000000000001109
Electromyographical and Perceptual Responses to Different Resistance Intensities in a Squat Protocol: Does Performing Sets to Failure With Light Loads Produce the Same Activity?
David P. Looney (2016)
10.1007/BF00422582
A study of fatigue during repetitive static work performed in two different segmental positions
J. Kahn (1984)
10.1007/BF00421098
The influence of temperature on the amplitude and frequency components of the EMG during brief and sustained isometric contractions
J. Petrofsky (2004)
10.1007/BF00426155
Comparison of two modalities when exerting isometric contractions
J. Kahn (1985)
Avaliação da fadiga eletromiográfica dos músculos bíceps braquial e extensor dos dedos
Bianca Callegari (2011)
10.4271/962432
Human Subject Kinematics and Electromyographic Activity During Low Speed Rear Impacts
T. Szabo (1996)
The perception of effort during muscular fatigue and recovery
J. Hastrup Svendsen (1997)
10.1212/WNL.55.2.171
Clinical utility of surface EMG
S. Pullman (2000)
10.3390/s140917848
In-Vivo Measurement of Muscle Tension: Dynamic Properties of the MC Sensor during Isometric Muscle Contraction
Srdan Dordevic (2014)
10.1111/j.1748-1716.2010.02145.x
On functional motor adaptations: from the quantification of motor strategies to the prevention of musculoskeletal disorders in the neck–shoulder region
P. Madeleine (2010)
Análise dos estimadores de fadiga do eletromiograma durante o treinamento resistido de elevada intensidade executado sob diferentes intervalos de séries
Rayane Maria Pessoa de Souza (2019)
10.1007/BF00643511
The fatigability of two agonistic muscles in human isometric voluntary submaximal contraction: an EMG study
B. Maton (1989)
10.1080/00140130903389068
Endurance time is joint-specific: A modelling and meta-analysis investigation
L. F. Frey Law (2010)
Human Upper Airway Muscle EMG Changes During Sustained Contractions of a
Christiana DelloRusso (2013)
10.1007/s00421-006-0187-8
Human muscle fatigue and elastic compressive stockings
B. Maton (2006)
10.1152/jn.00354.2013
Increase in heterogeneity of biceps brachii activation during isometric submaximal fatiguing contractions: a multichannel surface EMG study.
Didier Staudenmann (2014)
Enoka multichannel surface EMG study during isometric submaximal fatiguing contractions : a Increase in heterogeneity of biceps brachii activation
Didier Staudenmann (2014)
10.1152/japplphysiol.00186.2011
Neuromuscular adjustments that constrain submaximal EMG amplitude at task failure of sustained isometric contractions.
J. L. Dideriksen (2011)
10.14814/phy2.13675
Effects of fatiguing, submaximal high‐ versus low‐torque isometric exercise on motor unit recruitment and firing behavior
Tyler W D Muddle (2018)
The in vivo dynamic fatigue response of the spine to sudden loading in the sagittal plane: Effects of pre-load and step input magnitude.
Bienvenido Pablo. Parcero (2000)
10.1007/BF00952252
Physiological responses of women during lifting exercise
C. Williams (1982)
10.1097/00005768-200007000-00015
Cadence, power, and muscle activation in cycle ergometry.
B. MacIntosh (2000)
10.1007/BF00240408
The relationship between voluntary electromyogram, endurance time and intensity of effort in isometric handgrip exercise
W. West (1995)
10.1016/0268-0033(95)92041-J
Measurement of creep strain of flexor tendons during low-force high-frequency activities such as computer keyboard use.
W. Smutz (1995)
10.1152/ajpregu.00356.2014
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 (2015)
10.46940/sphrj.01.1002
Can eccentric exercise of the lower limb be made more efficiently, a pilot study
Jerrold Scott Petrofsky (2019)
10.1007/BF00428870
Relationship between force and integrated EMG activity during voluntary isometric anisotonic contraction
S. Metral (1981)
10.1002/mus.24901
Muscle activation of the quadriceps and hamstrings during incremental running.
Clayton L. Camic (2015)
An investigation of the effect of ergogenic corsets on biomechanical, physiological and psychophysical parameters during manual lifting
Amarnath R. Duggasani (1993)
10.1007/s004240050103
The relationship between plasma potassium, muscle membrane excitability and force following quadriceps fatigue
W. West (2009)
AD-A 230 454 ENHANCING THE TOLERANCE TO + GZ ACCELERATION BY UPTIMIZING THE USE OF ISOMETRIC CONTRACTIONS IN COMBINATION WITH STRAINING MANEUVERS
C. Williams ()
10.1556/APhysiol.100.2013.1.5
Effects of deception for intensity on surface electromyogram (SEMG) activity and blood lactate concentration during intermittent cycling followed by exhaustive cycling.
R Matsuura (2013)
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