Artículos de revistas
Electromyographic Behaviour Of The Gastrocnemius Muscle During Knee Extension And Flexion Performed On The Leg Press
Registro en:
Electromyography And Clinical Neurophysiology. , v. 39, n. 6, p. 367 - 377, 1999.
0301150X
2-s2.0-6544282656
Autor
Tassi N.
Guazzelli Filho J.
Goncalves M.
Vitti M.
Krool L.B.
Institución
Resumen
The gastrocnemius was analysed in 10 male volunteers during knee flexion and extension with the foot in normal, plantar flexion and dorsal flexion positions. Hewlett-Packard surface electrodes, an electromyographic signal amplifier, a computer equipped with an AID conversion plaque (Model CAD 10/26), a software specially designed to record and analyse the signals, a horizontal leg press, and electrogoniometers were used. The gastrocnemius muscle showed strong potentials at the end of knee extension and beginning of knee flexion. The muscle presented a similar activity both in the zipper and lower platforms. As to bilateral action, the right gastrocnemius presented stronger potentials on the upper platforms, whereas the potentials were bilaterally similar on the lower platforms. As for foot position, the gastrocnemius presented strong potentials when the foot was in plantar flexion. The remaining positions had no effect on the work of the muscle. 39 6 367 377 Basmajian, J.V., (1970) Primary Anatomy. 6 Ed., , Williams & Wilkins, Baltimore Basmajian, J.V., Bentzon, J.W., An electromyographic study of certain muscles of the leg and foot in the standing position (1954) Surg. Gynecol. Obstet., 98, pp. 662-666 Bittencourt, N., (1986) Musculação. Uma Abordagem Metodológica. 2d Ed., 123p. , Sprint, Rio de Janeiro Campbell, K.M., Electromyographic investigation of the relative activity among four components of the triceps surae (1973) Am. J. Phys. Med., 52, pp. 30-41 Carpentier, A., Velocity-dependent muscle strategy during plantar flexion in humans (1996) J. Electromyogr. Kinesiol., 6, pp. 225-233 De Boer, R.W., Moments of force power, and muscle coordination in speed-skating (1987) Int. J Sport Med., 8, pp. 317-318 Delacgi, E.F., (1975) Anatomic Guide for the Electromyographer. 2nd Ed., pp. 144-147. , Springfield, Illinois De Marco, A., (1990) Estudo Eletromiográfico Das Cabeças Medial e Lateral Do Músculo Gastrocnêmio Durante Pedalação Em Bicicleta Ergométrica e Nos Movimentos de Elevação e Abaixamento Dos Calcanhares, Em Inversão e Eversão, 84p. , Doctoral thesis. Instituto de Ciências Biomédicas da Universidade de São Paulo. São Paulo Jacobs, R., Mechanical output from individual muscles during explosive leg extensions: The role of biarticular muscles (1996) J. Biomechanics, 29, pp. 513-523 Furlani, J., Electromyographic behavior of the gastrocnemius muscle Electromyogr (1978) Clin. Neurophysiol., 18, pp. 29-34 Herman, R., Bragin, S.T., Function of the gastrocnemius and soleus: A preliminary study in the normal human subject (1967) Phys. Ther., 47, p. 105 Hoel, P.G., (1981) Estatística Elementar, 430p. , Atlas, São Paulo Houtz, S.J., Fisher, F.J., An analysis of muscle action and joint excursion during exercise on stationary bicycle (1959) J. Bone Joint. Surg., 41 A, pp. 123-131 Lehmkuhl, L.D., Smith, L.K., Região do joelho (1989) Cinesiologia Clinica. 4a Ed., p. 311. , Brunnstrom, Manole, São Paulo O'Connell, A.L., Electromyographic study of certain muscles during movements of the free foot during standing (1958) Am. J. Phys. Med., 37, pp. 289-301 Pimentel Gomes, F., (1976) Curso de Estatística Experimental. 8a Ed., 467p. , ESALQ, Piracicaba Rasch, P.J., Burke, R.K., Movimentos da articulação do joelho (1987) Cinesiologia e Anatomia Aplicada, pp. 347-351. , Koogan Smith, J.W., Muscular control of the arches of the foot in standing: An electromyographic assessment (1954) J. Anat., 88, pp. 152-162