title: A periodized model for exercise improves the intra-hospital evolution of patients after myocardial revascularization: a pilot randomized controlled trial.
abstract: OBJECTIVE
  To compare models of the postoperative hospital treatment phase after myocardial revascularization.
  
  
  METHODS
  A pilot randomized controlled trial.
  
  
  METHODS
  Hospital patients in a hospital setting.
  
  
  METHODS
  Thirty-two patients with indications for myocardial revascularization were included between January 2008 and December 2009, with a left ventricular ejection fraction (LVEF) ≥50%, 1-second forced expiratory volume (FEV(1)) ≥60 and forced vital capacity (FVC) ≥60% of predicted value.
  
  
  METHODS
  Patients were randomly placed into two groups: one performed prescribed exercises according to the model proposed by the American College of Sports Medicine (ACSM) and the other according to a periodized model.
  
  
  METHODS
  Partial pressure of O(2) (P o (2)) and arterial O(2) saturation (Sao (2)), percentage of predicted FVC and total distance on the six-minute walking test (6MWT).
  
  
  RESULTS
  Twenty-seven patients were re-evaluated upon release from the hospital (ACSM = 14 and PP = 13). Five patients extubated for more than 6 hours in the postoperative period were excluded from the sample. In the preoperative period the variables P o (2), Sao (2), % FVC and 6MWT were similar. In the postoperative period, a reduction was observed for all parameters in both groups. Upon comparison of the groups, a difference was observed in P o (2) (ACSM = 68.0 ± 4.3 vs. PP = 75.9 ± 4.8 mmHg; P < 0.001), Sao (2) (ACSM = 93.5 ± 1.4 vs. PP = 94.8 ± 1.2%; P = 0.018) and 6MWT (ACSM = 339.3 ± 41.7 vs. PP = 393.8 ± 25.7 m; P < 0.001). There was no difference in % FVC.
  
  
  CONCLUSIONS
  Patients after myocardial revascularization following a periodized model of exercise presented a better intra-hospital evolution when compared to those using the ACSM model.
authors.affiliation: Pontifícia Universidade Católica do Paraná, Brazil. rafael.macedo@hospitalcostantini.com.br
authors.forename: Rafael Michel
authors.initials: RM
authors.lastname: de Macedo
authors.forename: José Rocha
authors.initials: JR
authors.lastname: Faria Neto
authors.forename: Costantino O
authors.initials: CO
authors.lastname: Costantini
authors.forename: Marcia
authors.initials: M
authors.lastname: Olandoski
authors.forename: Dayane
authors.initials: D
authors.lastname: Casali
authors.forename: Ana Carolina Brandt
authors.initials: AC
authors.lastname: de Macedo
authors.forename: Andrea
authors.initials: A
authors.lastname: Muller
authors.forename: Costantino R
authors.initials: CR
authors.lastname: Costantini
authors.forename: Vivian Ferreria
authors.initials: VF
authors.lastname: do Amaral
authors.forename: Katheryne Athayde Teixeira
authors.initials: KA
authors.lastname: de Carvalho
authors.forename: Luiz César
authors.initials: LC
authors.lastname: Guarita-Souza
mesh_terms: D000368:Aged; D001938:Brazil; D005081:Exercise Therapy / Q000379:methods*; D017079:Exercise Tolerance; D006801:Humans; D007297:Inpatients; D008875:Middle Aged; D009204:Myocardial Revascularization / Q000534:rehabilitation*; D010101:Oxygen Consumption / Q000502:physiology; D010865:Pilot Projects; D011184:Postoperative Period; D013147:Spirometry; D016896:Treatment Outcome; D014797:Vital Capacity / Q000502:physiology; D016138:Walking / Q000502:physiology