Isometric maximum voluntary contraction experiments – elbow
A comparison of two gluteus maximus EMG maximum voluntary isometric contraction positions
... Subjects Anatomy and Physiology, Kinesiology, Orthopedics Keywords MVC, MVIC, Electromyography, Neuromechanics, Normalization INTRODUCTION Maximum voluntary isometric contractions (MVIC) are often ...
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Normalizing shoulder EMG: an optimal set of maximum isometric voluntary contraction tests considering reproducibility
... Power regression procedures present a lower intra-day repeatability than a maximal voluntary activation (MVA) (Bao et al., 1995). However, and despite its importance, no studies have investigated the inter-session ...
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Estimating the EMG response exclusively to fatigue during sustained static maximum voluntary contraction
... 2.4 Data collection Surface EMG data was collected from the biceps brachii muscles by a pair of dispos- able Ag-AgCl electrodes. The electrodes were 1cm in diameter each, placed on the belly of the biceps brachii, with a ...
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A comparison land-water environment of maximal voluntary isometric contraction during manual muscle testing through surface electromyography
... the maximum force of participant at the MVC test and the waterproofing, which does not allow the entry of water between the electrode/skin, all ap- pear to make the values of the MVC test for sEMG more comparable ...
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Iliocapsularis: technical application of fine-wire electromyography, and direction specific action during maximum voluntary isometric contractions
... The iliocapsularis muscle of the anterior hip may play an important role in hip function, but no electromyographic (EMG) recordings have been made. This muscle provides the most substantial muscular attachment to the ...
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Investigation of the EMG-angle Relationship in the Upper-limb Muscles during Isometric Contraction
... of elbow flexion and extension while keeping the forearm in a neutral position ...involving elbow bending and subsequent stretching of the arm was used by Wu et ...EMG- elbow angle relationship in ...
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The relationship between maximum isometric strength and ball velocity in the tennis serve
... of maximum isometric strength in different sports has been previously demonstrated (McGuigan and Winchester, ...related maximum isometric strength of different upper and lower body joints to ...
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Possible neural mechanisms underlying post-contraction potentiation in elbow flexor muscle in humans
... A previous study showed that strenuous force exertion gives rise to potentiation of active mus- cles (post-contraction potentiation, PCP). However, the mechanisms underlying PCP remain unclear. We investigated the ...
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Is cardiac autonomic modulation during upper limb isometric contraction and Valsalva maneuver impaired in COPD patients?
... Isometric contraction (IC) and the Valsalva maneuver (VM) are widely used autonomic tests to assess altered autonomic responses in different ...of maximum voluntary ...
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Motor imagery and electrical stimulation reproduce corticospinal excitability at levels similar to voluntary muscle contraction
... The isometric maximum voluntary contraction (MVC) force was first measured for index finger abduction using a force transducer (LMR-S-SA2, Kyowa Electronic Instruments ...
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Quadriceps Isometric Contraction Exercise
... How Isometric Exercises Can Reduce Tendon Pain. Isometric quadriceps femoris exercises can be used from an initial quest ...quadriceps isometric contraction exercise method is effective for ...
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Sonomyographic responses during voluntary isometric ramp contraction of the human rectus femoris muscle
... the isometric testing ses- sions, the subject was required to perform two maximal, 6-s isometric knee extensions to determine the maximal voluntary contraction (MVC), which was defined as the ...
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Ultrastructure of Clots during Isometric Contraction
... We next considered the two models for clot contraction involving platelet-fibrin interaction, The waving pseudopod model (8), Model 2 (Fig. 22), would predict many pseudopods oriented op[r] ...
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Relation between Peak Power Output in Sprint Cycling and Maximum Voluntary Isometric Torque Production
... Citation: Kordi, Mehdi, Goodall, Stuart, Barratt, Paul, Rowley, Nicola and Howatson, Glyn (2017) Relation between Peak Power Output in Sprint Cycling and Maximum V[r] ...
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Audiometric findings with voluntary tensor tympani contraction
... of voluntary TT contraction were recruited for audiometric ...TT contraction was con- firmed with modified reflex decay testing ...with contraction reverses from ambient or positive pressure ...
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Neuromuscular adaptations to voluntary contraction following postactivation potentiation
... during voluntary control, the requisite submaximal target torque can be achieved at a lower Ca 2+ concentration following PAP 41 ...of voluntary input to torque output increases NME while ...conditioning ...
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Muscle activation patterns for voluntary isometric stiffness in human index finger
... 3.7 Data Collection Two NI DAQ Modules (NI USB 6321 and NI 6356 PCIe) and LabVIEW software (National Instruments, Inc., Austin, TX) were used to program the stiffness protocol and collect sEMG and force data. A ...
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The sarcoplasmic reticulum plays a major role in isometric contraction in atrial muscle of yellowfin tuna
... that the percentage of SR Ca 2+ utilization increases with increased cardiac frequency, and suggest that this ability to utilize SR Ca 2+ cycling to deliver and remove Ca 2+ from the myofilaments allows yellowfin tuna to ...
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Assessment of muscle fatigue during isometric contraction using autonomic nervous system correlates
... • After the MVC measurement phase, we acquired EMG, EDA and ECG data as it follows: the EMG activity mea- sured over the biceps brachii (short and long head), up- per trapezius, deltoideus, triceps brachii, ...
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Biceps brachii muscle fatigue during isometric contraction: is antagonist muscle fatigue a key factor?
... muscle isometric contractions suggest the use of super-set training only during ballistic limb movements ...triceps contraction modulates elbow flexion during this position task (supporting inertial ...
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