Emg Activation Of Abdominal Muscles In The Crunch Exercise Performed With Different External Loads.

dc.creatorMoraes, Antonio C
dc.creatorPinto, Ronei S
dc.creatorValamatos, Maria Jose
dc.creatorValamatos, Maria Joao
dc.creatorPezarat-Correia, Pedro L
dc.creatorOkano, Alexandre H
dc.creatorSantos, Pedro M
dc.creatorCabri, Jan M
dc.date2009-May
dc.date2015-11-27T13:15:06Z
dc.date2015-11-27T13:15:06Z
dc.date.accessioned2018-03-29T01:08:39Z
dc.date.available2018-03-29T01:08:39Z
dc.identifierPhysical Therapy In Sport : Official Journal Of The Association Of Chartered Physiotherapists In Sports Medicine. v. 10, n. 2, p. 57-62, 2009-May.
dc.identifier1873-1600
dc.identifier10.1016/j.ptsp.2009.01.001
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/19376473
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198273
dc.identifier19376473
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1298506
dc.descriptionThe aim of this study was to describe by means of surface electromyography the activation of the rectus abdominis, obliquus externus and rectus femoris muscles during the crunch abdominal exercise performed with loads. Thirteen subjects performed crunch exercises with loads representing 80, 60, 40 and 20% of the 1-RM (100%) in a random order with the subjects drawing lots, and with a 5 min rest between sets. Surface bipolar EMG electrodes were used. The root mean square of the EMG was calculated for the first repetition of each load. Differences between conditions were tested using a one way ANOVA for repeated measures. Post-hoc Bonferroni tests was used to detect significant differences between specific loads (p<0.05). An average of the percentage values of all studied abdominal muscles was used as a representative value of abdominal synergy (Ab Syn). In general it can be concluded that the abdominal muscles were significantly more recruited in the 100% load condition. Abdominal activation significantly differed between the various loads; however, in general adjacent loads (20 vs. 40% - 1-RM) did not differ. These results suggest that for young, healthy and physically active adults when the objective is progression in the training process of abdominal force, the option ought to be for changes of load superior to 20% of the 1-RM.
dc.description10
dc.description57-62
dc.languageeng
dc.relationPhysical Therapy In Sport : Official Journal Of The Association Of Chartered Physiotherapists In Sports Medicine
dc.relationPhys Ther Sport
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAbdominal Muscles
dc.subjectAdolescent
dc.subjectElectromyography
dc.subjectExercise Test
dc.subjectFemale
dc.subjectHumans
dc.subjectMale
dc.subjectWeight-bearing
dc.subjectYoung Adult
dc.titleEmg Activation Of Abdominal Muscles In The Crunch Exercise Performed With Different External Loads.
dc.typeArtículos de revistas


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