title: Physical activity patterns during weight maintenance following a low-energy density dietary intervention.
abstract: OBJECTIVE
  The objective was to determine the role of physical activity (PA) and energy intake on weight maintenance among former University of Alabama at Birmingham EatRight Weight Management Program participants.
  
  
  METHODS
  Eighty-nine former participants completed follow-up visits > or =1 year after completing EatRight. BMI was calculated using measured height and weight. Diet intake was estimated from 4-day food records. PA was assessed using a module from the Behavioral Risk Factor Surveillance System Survey. Cut-off points were chosen based on the distribution of minutes of activity. For moderate and total activity, cut-off points were 0, 1 to 30, 31 to 60, and >60 minutes. For vigorous activity, the categories were 0, 1 to 20, 21 to 30, and >30 minutes. General linear models determined the association of PA with change in weight at follow-up controlling for gender and total energy intake (kcal/d).
  
  
  RESULTS
  At follow-up, 80% (n = 71) of participants maintained (regained <5% of program end weight) their body weight and 20% had gained weight. Mean weight change was 1.0 +/- 6.5 kg. Maintainers consumed 384 fewer kcal/d on average. Maintainers had a lower energy density dietary pattern (1.58 vs. 2.01 kcal/g, p < 0.01). There was no significant difference in PA min/d reported by maintainers and gainers.
  
  
  CONCLUSIONS
  Our results suggest that, despite being minimally active, weight-reduced individuals can successfully maintain their newly achieved body weight with appropriate caloric intake. Adopting a lower calorie, low energy density dietary pattern may reduce the amount of PA that is truly necessary for weight maintenance.
authors.affiliation: Department of Nutrition Sciences, University of Alabama at Birmingham, AL 35294, USA. mistlc@uab.edu
authors.forename: Tiffany L
authors.initials: TL
authors.lastname: Cox
authors.forename: Christie Z
authors.initials: CZ
authors.lastname: Malpede
authors.forename: Renee A
authors.initials: RA
authors.lastname: Desmond
authors.forename: Lori E
authors.initials: LE
authors.lastname: Faulk
authors.forename: Rory A
authors.initials: RA
authors.lastname: Myer
authors.forename: C Suzanne
authors.initials: CS
authors.lastname: Henson
authors.forename: Douglas C
authors.initials: DC
authors.lastname: Heimburger
authors.forename: Jamy D
authors.initials: JD
authors.lastname: Ard
mesh_terms: D000328:Adult; D000368:Aged; D015992:Body Mass Index; D001835:Body Weight; D004038:Diet, Reducing; D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology; D018579:Patient Selection; D015430:Weight Gain