title: Physical activity and sedentary behavior in bariatric patients long-term post-surgery.
abstract: BACKGROUND
  To measure sedentary behaviors and physical activity using accelerometry in participants who have undergone bariatric surgery 8.87 ± 3.78 years earlier and to compare these results with established guidelines.
  
  
  METHODS
  Participants' weight and height were measured, an ActivPAL™3 accelerometer and sleeping journal were used to determine day sedentary time, transitions from sitting to standing, as well as steps/day, and participants were asked to indicate if they felt that they were currently less, the same, or more active than before surgery.
  
  
  RESULTS
  Participants averaged 48 ± 15 transitions/day, 6375 ± 2690 steps/day, and 9.7 ± 2.3 h/day in sedentary positions. There was a negative correlation between steps/day and sedentary time (r = -.466, p ≤ .001), 11.27 % of participants achieved 10,000 steps/day. Participants who reported being more active prior to surgery averaged 6323.4 ± 2634.79 steps/day, which was not different from the other two groups of self-perceived change in level of physical activity (F (2, 68) = .941, p ≤ .05) from pre- to post-surgery.
  
  
  CONCLUSIONS
  Participants were inadequately active and overly sedentary compared to established guidelines and norms. Healthcare workers should be taking physical activity and sedentary time into account when creating post-surgical guidelines for this population to ensure the best long-term weight loss maintenance and health outcomes.
authors.affiliation: Department of Kinesiology and Physical Education, McGill University, 475 avenue des Pins Ouest, Montreal, QC, H2W 1S4, Canada, ryan.reid@mail.mcgill.ca.
authors.forename: Ryan E R
authors.initials: RE
authors.lastname: Reid
authors.forename: Tamara E
authors.initials: TE
authors.lastname: Carver
authors.forename: Kathleen M
authors.initials: KM
authors.lastname: Andersen
authors.forename: Olivier
authors.initials: O
authors.lastname: Court
authors.forename: Ross E
authors.initials: RE
authors.lastname: Andersen
mesh_terms: D061725:Accelerometry; D000328:Adult; D050110:Bariatric Surgery; D001835:Body Weight / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D009765:Obesity / Q000503:physiopathology / Q000601:surgery*; D011184:Postoperative Period; D057185:Sedentary Behavior