title: Occupational differences for nutrient intake and physical-activity levels in young and middle-aged men.
abstract: BACKGROUND
  Physical demands may vary between white collar and blue collar occupations when evaluating specific physiological differences such as one's weight, body mass index and body fat percentage.
  
  
  OBJECTIVE
  To explore nutritional, anthropometric, and physical-activity differences between young and middle-aged WC and BC workers.
  
  
  METHODS
  Ninety-one male participants aged 19-64 that were either WC and/or BC workers completed a 3-day food recall, modified Baecke Questionnaire, and had their height, weight, body mass index and body fat percentage measured. Participants were classified as: young-white-collar, young-blue-collar, middle-white-collar or middle-blue-collar workers.
  
  
  RESULTS
  No nutritional differences within ages or between occupations were reported. Body mass index and body fat percentage were lower for young vs. middle-aged workers. Lastly, physical-activity at work was higher for young and middle-aged Blue collar workers, while White collar workers participated in more physical activity outside of work.
  
  
  CONCLUSIONS
  The present findings suggest that the observed increases in body fat percentage and body mass index with age, are independent of occupation.
authors: Department of Wellness, Oklahoma State University, Stillwater, OK, USA.
authors: Eric C
authors: EC
authors: Conchola
authors: Department of Exercise and Sport Science, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA.
authors: Abbie E
authors: AE
authors: Smith-Ryan
authors: Department of Health, Physical Education, and Recreation, Utah State University, Logan, UT, USA.
authors: Brennan J
authors: BJ
authors: Thompson
authors: Human Performance Laboratory, Department of Health, Exercise, and Sport Sciences, Texas Tech University, Lubbock, TX, USA.
authors: Eric J
authors: EJ
authors: Sobolewski
authors: Department of Exercise and Sport Science, University of North Carolina - Chapel Hill, Chapel Hill, NC, USA.
authors: Eric D
authors: ED
authors: Ryan
keywords: Age; blue collar; calories; macronutrients; work index