title: Acute effects of flexible pole exercise on heart rate dynamics.
abstract: BACKGROUND
  Exercise with flexible poles provides fast eccentric and concentric muscle contractions. Although the literature reports significant muscle chain activity during this exercise, it is not clear if a single bout of exercise induces cardiac changes. In this study we assessed the acute effects of flexible pole exercise on cardiac autonomic regulation.
  
  
  METHODS
  The study was performed on 22 women between 18 and 26 years old. We assessed heart rate variability (HRV) in the time (SDNN, RMSSD and pNN50) and frequency (HF, LF and LF/HF ratio) domains and geometric indices of HRV (RRTri, TINN, SD1, SD2 and SD1/SD2 ratio). The subjects remained at rest for 10 min and then performed the exercises with the flexible poles. Immediately after the exercise protocol, the volunteers remained seated at rest for 60 min and HRV was analyzed.
  
  
  RESULTS
  We observed no significant changes in time domain (SDNN: p=0.72; RMSSD: p=0.94 and pNN50: p=0.92) or frequency domain indices (LF [nu]: p=0.98; LF [ms(2)]: p=0.72; HF [nu]: p=0.98; HF [ms(2)]: p=0.82 and LF/HF ratio: p=0.7) or in geometric indices (RRTri: p=0.54; TINN: p=0.77; SD1: p=0.94; SD2: p=0.67 and SD/SD2: p=0.42) before and after a single bout of flexible pole exercise.
  
  
  CONCLUSIONS
  A single bout of flexible pole exercise did not induce significant changes in cardiac autonomic regulation in healthy women.
authors.affiliation: Centro de Estudo do Sistema Nervoso Au (CESNA), Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil; Departamento de Fisioterapia e Terapia Ocupacional, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, Brazil.
authors.forename: Letícia Santana
authors.initials: LS
authors.lastname: de Oliveira
authors.affiliation: Centro de Estudo do Sistema Nervoso Au (CESNA), Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil; Departamento de Fisioterapia e Terapia Ocupacional, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, Brazil.
authors.forename: Patrícia S
authors.initials: PS
authors.lastname: Moreira
authors.affiliation: Centro de Estudo do Sistema Nervoso Au (CESNA), Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil.
authors.forename: Ana M
authors.initials: AM
authors.lastname: Antonio
authors.affiliation: Centro de Estudo do Sistema Nervoso Au (CESNA), Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil.
authors.forename: Marco A
authors.initials: MA
authors.lastname: Cardoso
authors.affiliation: Departamento de Morfologia e Fisiologia, Faculdade de Medicina do ABC, Santo André, SP, Brazil.
authors.forename: Luiz Carlos
authors.initials: LC
authors.lastname: de Abreu
authors.affiliation: Departamento de Fisioterapia e Terapia Ocupacional, Faculdade de Filosofia e Ciências, UNESP, Marília, SP, Brazil.
authors.forename: Marcelo T
authors.initials: MT
authors.lastname: Navega
authors.affiliation: Departamento de Morfologia e Fisiologia, Faculdade de Medicina do ABC, Santo André, SP, Brazil.
authors.forename: Rodrigo D
authors.initials: RD
authors.lastname: Raimundo
authors.affiliation: Centro de Estudo do Sistema Nervoso Au (CESNA), Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, UNESP, Presidente Prudente, SP, Brazil. Electronic address: vitor.valenti@marilia.unesp.br.
authors.forename: Vitor E
authors.initials: VE
authors.lastname: Valenti
mesh_terms: D000293:Adolescent; D000328:Adult; D015444:Exercise; D005260:Female; D006339:Heart Rate; D006801:Humans; D018583:Pliability; D013997:Time Factors; D055815:Young Adult
keywords: Autonomic nervous system; Cardiovascular physiology; Exercise; Exercício; Sistema cardiovascular; Sistema nervoso autônomo