dc.creator | Pinto R.S. | |
dc.creator | Botton C.E. | |
dc.creator | Kuckartz B.T. | |
dc.creator | Lima C.S. | |
dc.creator | de Moraes A.C. | |
dc.creator | Bottaro M. | |
dc.date | 2012 | |
dc.date | 2015-06-29T12:58:48Z | |
dc.date | 2015-11-26T14:33:30Z | |
dc.date | 2015-06-29T12:58:48Z | |
dc.date | 2015-11-26T14:33:30Z | |
dc.date.accessioned | 2018-03-28T21:36:55Z | |
dc.date.available | 2018-03-28T21:36:55Z | |
dc.identifier | | |
dc.identifier | Revista Brasileira De Cineantropometria E Desempenho Humano. , v. 14, n. 2, p. 202 - 211, 2012. | |
dc.identifier | 14158426 | |
dc.identifier | 10.5007/1980-0037.2012v14n2p202 | |
dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-84857815293&partnerID=40&md5=323316c2f7279564fe61283a05fbabd0 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/97497 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/97497 | |
dc.identifier | 2-s2.0-84857815293 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1247875 | |
dc.description | Strength training has been reported as an important tool for enhancing and maintaining health. Resistance exercises can be executed unilaterally or bilaterally. Some studies have reported lower strength and electromyography (EMG) signal values in bilateral conditions than the sum of these values in unilateral conditions. This difference in strength and EMG is called the bilateral deficit. The aim of this study was to evaluate the strength and EMG activity of the rectus femoris and vastus lateralis during unilateral and bilateral isometric knee extension. The sample consisted of 10 non-resistance trained males aged 18 to 30 years. Strength and EMG were recorded through use of a load cell and surface electrodes, respectively. A 120° knee extension was used for the isometric knee extension test. The results showed significantly higher values for strength and EMG signal (p <0.05) in unilateral conditions, as well as bilateral deficit in both strength and EMG signal. These results suggest that unilateral training promotes greater muscle stimulation, and can thus represent an important strategy to be used in the prescription of strength training exercises. | |
dc.description | 14 | |
dc.description | 2 | |
dc.description | 202 | |
dc.description | 211 | |
dc.description | Fleck, S.J., Kraemer, W.J., (2004) Designing Resistance Training Programs, , Champaign: Human Kinetics | |
dc.description | Kraemer, W.J., Ratamess, N.A., Fundamentals of resistance training: Progression and exercise prescription (2004) Med Sci Sports Exerc, 36 (4), pp. 674-688 | |
dc.description | Owings, T.M., Grabiner, M.D., Fatigue effects on the bilateral deficit are speed dependent (1998) Med Sci Sports Exerc, 30 (8), pp. 1257-1262 | |
dc.description | Owings, T.M., Grabiner, M.D., Normally aging older adults demonstrate the bilateral deficit during ramp and hold contractions (1998) J Gerontol a Biol Sci Med Sci, 53 A (6), pp. B426-B429 | |
dc.description | van Dieen, J.H., Ogita, F., de Haan, A., Reduced neural drive in bilateral exertions: A performance-limiting factor? (2003) Med Sci Sports Exerc, 35 (1), pp. 111-118 | |
dc.description | Kuruganti, U., Murphy, T., Bilateral deficit expressions and myoelectric signal activity during submaximal and maximal isometric knee extensions in young, athletic males (2008) Eur J Appl Physio, 102 (6), pp. 721-726 | |
dc.description | Ohtsuki, T., Decrease in human voluntary isometric arm strength induced by simultaneous bilateral exertion (1983) Behav Brain Res, 7 (2), pp. 165-178 | |
dc.description | Howard, J.D., Enoka, R.M., Maximum bilateral contractions are modified by neutrally mediated interlimb effects (1991) J Appl Physiol, 70 (1), pp. 306-316 | |
dc.description | Vandervoort, A.A., Sale, D.G., Moroz, J., Comparison of motor unit activation during unilateral and bilateral leg extension (1984) J Appl Physiol, 56 (1), pp. 46-51 | |
dc.description | Koh, T.J., Grabiner, M.D., Clough, C.A., Bilateral deficit is larger for step than for ramp isometric contractions (1993) J Appl Physiol, 74 (3), pp. 1200-1205 | |
dc.description | Kuruganti, U., Parker, P., Rickards, J., Tingley, M., Sexsmith, J., Bilateral isokinetic training reduces the bilateral leg strength deficit for both old and young adults (2005) Eur J Appl Physio, 94 (1-2), pp. 175-179 | |
dc.description | Hakkinen, K., Kallinen, M., Linnamo, V., Pastinen, U.M., Newton, R.U., Kraemer, W.J., Neuromuscular adaptations during bilateral versus unilateral strength training in middle-aged and elderly men and women (1996) Acta Physiol Scand, 158 (1), pp. 77-88 | |
dc.description | Hakkinen, K., Kraemer, W.J., Newton, R.U., Muscle activation and force production during bilateral and unilateral concentric and isometric contractions of the knee extensors in men and women at different ages (1997) Electromyogr Clin Neurophysiol, 37 (3), pp. 131-142 | |
dc.description | Jakobi, J.M., Cafarelli, E., Neuromuscular drive and force production are not altered during bilateral contractions (1998) J Appl Physiol, 84 (1), pp. 200-206 | |
dc.description | Herbert, R.D., Gandevia, S.C., Muscle activation in unilateral and bilateral efforts by motor nerve and cortical stimulation (1996) J Appl Physiol, 80 (4), pp. 1351-1356 | |
dc.description | Leis, A.A., Trapani, V.C., (2000) Atlas of Electromyography, , Oxford: Oxford University Press | |
dc.description | Narici, M.V., Roi, G.S., Landoni, L., Minetti, A.E., Cerretelli, P., Changes in force, cross-sectional area and neural activation during strength training and detraining of human quadriceps (1989) Eur J Appl Physiol, 59 (4), pp. 310-319 | |
dc.description | Hay, D., Souza, A.S., Fukashiro, S., Human bilateral deficit during a dynamic multi-joint leg press movement (2006) Hum Mov Sci, 25 (2), pp. 181-191 | |
dc.description | de Luca, C.J., The use of electromyography in biomechanics (1997) J Appl Biomec, 13 (2), pp. 135-163 | |
dc.description | Jakobi, J.M., Chilibeck, P.D., Bilateral and unilateral contractions: Possible differences in maximal voluntary force (2001) Can J Appl Physiol, 26 (1), pp. 12-33 | |
dc.description | Schantz, P.G., Moritani, T., Karlson, E., Johansson, E., Lundh, A., Maximal voluntary force of bilateral and unilateral leg extension (1989) Acta Physiol Scand, 136 (2), pp. 185-192 | |
dc.description | Oda, S., Moritani, T., Maximal isometric force and neural activity during bilateral and unilateral elbow flexion in humans (1994) Eur J Appl Physiol, 69 (3), pp. 240-243 | |
dc.description | Taniguchi, Y., Relationship between the modification of bilateral deficit in upper and lower limbs by resistance training in humans (1998) Eur J Appl Physio, 78 (3), pp. 226-230 | |
dc.description | Cruz, I., Rosa, G., Santos, E.M.R., Dias, I.B.F., Simao, R., Novaes, J., Acute answers of the blood pressure, heart beat and double product after the execution of the knees extension in a bilateral and unilateral way (2007) Fit Perf J, 6 (2), pp. 111-115 | |
dc.language | en | |
dc.language | pt | |
dc.publisher | | |
dc.relation | Revista Brasileira de Cineantropometria e Desempenho Humano | |
dc.rights | aberto | |
dc.source | Scopus | |
dc.title | Evaluation Of Bilateral Deficit In Isometric Contractions Of The Knee Extensors [avaliação Do Déficit Bilateral Em Contrações Isométricas Dos Extensores De Joelhos] | |
dc.type | Artículos de revistas | |