isometric contraction


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Related to isometric contraction: isometric muscle contraction

isometric contraction

[¦ī·sə′me·trik kən′trak·shən]
(physiology)
A contraction in which muscle tension is increased, but the muscle is not shortened because the resistance cannot be overcome. Also known as static contraction.
References in periodicals archive ?
Comparison of algorithms for estimation of EMG variables during voluntary isometric contractions. J Electromyogr Kinesiol.
MVIC, maximum voluntary isometric contraction; ICC, intraclass correlation coefficients; paired t-test, *p < 0.05; CI, confidence interval.
After cleaning the skin and placing the electrodes, the isometric contraction (hand open, power grasp, fine pinch, pronation, and supination) was performed by the subject during 10 seconds, with 10 seconds for rest.
Di Russo, "The neurophysiology of central and peripheral fatigue during submaximal lower limb isometric contractions," Frontiers in Human Neuroscience, vol.
Acute effect of repeated maximal isometric contraction on electromechanical delay of knee extensor muscle.
Protocol Week 1-2 Week 3-4 Week 5-6 Load (% of MVIC) 40 50 50 Sets per Session (n) 3 3 4 Repetitions per Set (n) 10 10 6 Protocol Week 7-8 Week 9-10 Week 11-12 Load (% of MVIC) 60 60 70 Sets per Session (n) 3 4 3 Repetitions per Set (n) 6 4 4 MVIC = maximal voluntary isometric contraction. Table 2.
Basal: isometric contraction with 1.25 mM extracellular calcium concentration; PP30: postrest contraction of 30 s; 2.5 mM [[[Ca.sup.2+]].sub.0]: isometric contraction with 2.5 mM extracellular calcium concentration; [10.sup.-6] M Iso: isometric contraction with [10.sup.-6] M isoproterenol added to the nutrient solution.
Effect of muscle mass and intensity of isometric contraction on heart rate.
Effect of stretching on agonist-antagonist muscle activity and muscle force output during single and multiple joint isometric contractions. Scandinavian Journal of Medicine Science Sports, v.
The yoga session involved seated, standing and supine postures that included isometric contraction and relaxation of different muscle groups and regulated breathing, and concluded with a meditative posture and deep breathing.
Sakamoto, "The Influence of Location of Electrode on Muscle Fiber Conduction Velocity and EMG Power Spectrum during Voluntary Isometric Contraction Measured with Surface Array Electrodes", Applied Human Science, Japan Society of Physiological Anthropology, vol.
In previous studies, EMG data were acquired at 50% maximal voluntary isometric contraction during grip, and analysed using normalized median frequency slope as a fatigue index.