title: Comparison of the electromyographic activity of the anterior trunk during the execution of two Pilates exercises - teaser and longspine - for healthy people.
abstract: This study compared abdominal electromyographic (EMG) activity during the performance of Pilates' exercises. 16 females participated in the study. EMG signals of the rectus abdominis (RA) and external oblique (EO) were recorded during Longspine performed on the mat, Cadillac, and Reformer and the Teaser performed on the mat, Cadillac, and Combo-chair. Values were normalized by the EMG peak of a dynamic task and divided in concentric and eccentric phases. Longspine performed on the mat increased EO activity in the concentric phase more than on the Reformer and the Cadillac (Mean Difference (MD)=12.2%; 95% Confidence Interval (CI) [3.36; 21.04]; p=.04). Differences in the eccentric phase of the RA favored the mat compared to the Reformer (MD=5.20%; 95% CI [-0.55; 10.95]; p=.02). Significant differences in eccentric contraction of the RA were found for teaser exercise performed on the mat versus Cadillac (MD=1.1%; 95% CI [-4.13; 6.33]; p=.04) and the mat versus the Combo-chair (MD=6.3%; 95% CI [1.31; 11.29]; p=.005). Higher concentric activation values for the EO were found when the teaser exercise was performed on the Cadillac. Exercises performed on the mat required greater rectus abdominis activation.
authors.affiliation: Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Josilainne Marcelino
authors.initials: JM
authors.lastname: Dias
authors.affiliation: Faculdade Interamericana de Porto Velho, Porto Velho, Brazil.
authors.forename: Maryela de Oliveira
authors.initials: Mde O
authors.lastname: Menacho
authors.affiliation: Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil; University of Central Lancashire, Preston, United Kingdom.
authors.forename: Bruno Fles
authors.initials: BF
authors.lastname: Mazuquin
authors.affiliation: Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Karen
authors.initials: K
authors.lastname: Obara
authors.affiliation: Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Fernanda Queiroz Ribeiro Cerci
authors.initials: FQ
authors.lastname: Mostagi
authors.affiliation: Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil; Universidade Tiradentes, Aracaju, Brazil.
authors.forename: Tarcísio Brandão
authors.initials: TB
authors.lastname: Lima
authors.affiliation: Sports Science Department, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Felipe Arruda
authors.initials: FA
authors.lastname: Moura
authors.affiliation: Electrical Engineering Department, Universidade Estadual de Londrina, Londrina, Brazil.
authors.forename: Taufik
authors.initials: T
authors.lastname: Abrão
authors.affiliation: Physical Therapy, Movement and Rehabilitation Sciences Department, Northeastern University, Boston, USA.
authors.forename: Maura Daly
authors.initials: MD
authors.lastname: Iversen
authors.affiliation: Coordinator of the Laboratory of Biomechanics and Clinical Epidemiology, Universidade Estadual de Londrina, Londrina, Brazil. Electronic address: jeffcar@uel.br.
authors.forename: Jefferson Rosa
authors.initials: JR
authors.lastname: Cardoso
mesh_terms: D000009:Abdominal Muscles / Q000502:physiology; D000328:Adult; D001415:Back / Q000502:physiology; D004576:Electromyography / Q000379:methods*; D015444:Exercise / Q000502:physiology; D005260:Female; D006801:Humans; D009068:Movement; D018482:Muscle, Skeletal / Q000502:physiology*; D017568:Rectus Abdominis / Q000502:physiology; D013131:Spine / Q000502:physiology; D060726:Torso / Q000502:physiology*; D055815:Young Adult
keywords: Electromyography; Exercise therapy; Rehabilitation