title: Correlates of adherence to supervised exercise in patients awaiting surgical removal of malignant lung lesions: results of a pilot study.
abstract: OBJECTIVE
  To examine the demographic, medical, and social-cognitive correlates of adherence to a presurgical exercise training intervention in patients awaiting surgery for suspected malignant lung lesions.
  
  
  METHODS
  Pilot study, single-group, prospective design with convenience sampling.
  
  
  METHODS
  Exercise training was performed at a university research fitness center in western Canada.
  
  
  METHODS
  19 patients awaiting surgical resection of suspected malignant lung lesions.
  
  
  METHODS
  At baseline, participants completed a questionnaire including the Theory of Planned Behavior variables of perceived behavioral control, attitude, and subjective norm, as well as medical and demographic information. Participants were asked to attend five supervised exercise sessions per week during surgical wait time (X = 8 +/- 2.4 weeks).
  
  
  METHODS
  Theory of Planned Behavior variables and exercise adherence.
  
  
  RESULTS
  Adherence to the exercise intervention was 73% (range = 0%-100%). Correlates of adherence were perceived behavioral control (r = 0.63; p = 0.004) and subjective norm (r = 0.51; p = 0.014). Participants with greater than 80% adherence reported significantly higher behavioral control than participants with less than 80% adherence (X difference = 1.1; 95% confidence interval = 0.1-2.2; p = 0.035). Men had better adherence than women (X difference = 24.9%; 95% confidence interval = 0.4-49.4; p = 0.047).
  
  
  CONCLUSIONS
  Perceived behavioral control and subjective norm were the strongest correlates of exercise adherence. Women could be at risk for poor exercise adherence prior to lung surgery.
  
  
  CONCLUSIONS
  This information could be useful for clinicians in their attempts to improve adherence to exercise interventions in patients awaiting surgery for malignant lung lesions.
authors.affiliation: Faculty of Physical Education and Recreation, University of Alberta, Edmonton, Canada. peddle@ualberta.ca
authors.forename: Carolyn J
authors.initials: CJ
authors.lastname: Peddle
authors.forename: Lee W
authors.initials: LW
authors.lastname: Jones
authors.forename: Neil D
authors.initials: ND
authors.lastname: Eves
authors.forename: Tony
authors.initials: T
authors.lastname: Reiman
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Sellar
authors.forename: Timothy
authors.initials: T
authors.lastname: Winton
authors.forename: Kerry S
authors.initials: KS
authors.lastname: Courneya
mesh_terms: D000368:Aged; D005081:Exercise Therapy; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000451:nursing* / Q000601:surgery / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010349:Patient Compliance; D010865:Pilot Projects; D011300:Preoperative Care / Q000379:methods*; D011446:Prospective Studies; D020377:Self Efficacy