title: Effects of Resistance Exercise Applied Early After Coronary Artery Bypass Grafting: a Randomized Controlled Trial.
abstract: OBJECTIVE
  To evaluate the effects of resistance exercise applied early after coronary artery bypass grafting.
  
  
  METHODS
  It is a randomized controlled trial with 34 patients undergoing coronary artery bypass grafting between August 2013 and May 2014. Patients were randomized into two groups by simple draw: a control group (n=17), who received conventional physical therapy and an intervention group (n=17), who received, additionally, resistance exercise. Pulmonary function and functional capacity were evaluated in preoperative period and hospital discharge by spirometry and the six-minute walk test. For statistical analysis, we used the following tests: Shapiro-Wilk, Mann-Whitney, Student'st and Fisher's exact. Variables with P<0.05 were considered significant.
  
  
  RESULTS
  Groups were homogeneous in terms of demographic, clinical and surgical variables. Resistance exercise exerted no effect on pulmonary function of intervention group compared to control group. However, intervention group maintained functional capacity at hospital discharge measured by percentage of predict distance in 6MWT (54.122.7% vs. 52.515.5%,P=0.42), while control group had a significant decrease (59.211.1% vs. 50.69.9%, P<0.016).
  
  
  CONCLUSIONS
  Our results indicate that resistance exercise, applied early, may promote maintenance of functional capacity on coronary artery bypass grafting patients, having no impact on pulmonary function when compared to conventional physical therapy.
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Nayana Nazaré Pessoa Sousa
authors.initials: NN
authors.lastname: Ximenes
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Daniel Lago
authors.initials: DL
authors.lastname: Borges
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Reijane Oliveira
authors.initials: RO
authors.lastname: Lima
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Mayara Gabrielle
authors.initials: MG
authors.lastname: Barbosa e Silva
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Luan Nascimento da
authors.initials: LN
authors.lastname: Silva
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Marina de Albuquerque Gonçalves
authors.initials: Mde A
authors.lastname: Costa
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Thiago Eduardo Pereira
authors.initials: TE
authors.lastname: Baldez
authors.affiliation: Hospital Universitário, Universidade Federal do Maranhão, São Luís, MA, Brazil.
authors.forename: Vinícius José da Silva
authors.initials: VJ
authors.lastname: Nina
mesh_terms: D000368:Aged; D001026:Coronary Artery Bypass / Q000534:rehabilitation*; D061345:Early Medical Intervention / Q000379:methods*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D055070:Resistance Training / Q000379:methods*; D013147:Spirometry