title: Low physical activity in patients with type 2 diabetes: the role of obesity.
abstract: OBJECTIVE
  Few studies have described ambulatory activity in free-living individuals with type 2 diabetes mellitus (T2DM) using motion sensors, and none included a control group. For this reason, our study compared the physical-activity levels of outpatients with T2DM with subjects without diabetes, and examined the relationship between body mass index (BMI) and physical-activity parameters.
  
  
  METHODS
  Physical-activity levels in 70 outpatients with T2DM and 30 age-, gender- and employment-matched individuals without diabetes were measured using the SenseWear Armband™, a monitoring device validated against doubly labelled water, to assess total energy expenditure. Patients wore the SenseWear Armband™ on their right arm continuously every day for 1 week.
  
  
  RESULTS
  Total energy expenditure (<300 kcal/day), number of steps (<1500/day), physical-activity duration (<130 min/day) and active energy expenditure/day (<300 kcal) were all significantly lower (P<0.05) in patients with T2DM. These measures were inversely correlated with BMI, and remained significant after adjusting for age, gender, employment status and the presence of diabetes.
  
  
  CONCLUSIONS
  Outpatients with T2DM have lower physical-activity levels than their matched controls, a characteristic that is related to their higher BMI.
authors.affiliation: Endocrinologie-Diabétologie-Nutrition, Hôpital Pierre-Zobda-Quitman, CHU de Fort-de-France, 97200 Fort-de-France, Martinique. cedricfagour@hotmail.com
authors.forename: C
authors.initials: C
authors.lastname: Fagour
authors.forename: C
authors.initials: C
authors.lastname: Gonzalez
authors.forename: S
authors.initials: S
authors.lastname: Pezzino
authors.forename: S
authors.initials: S
authors.lastname: Florenty
authors.forename: M
authors.initials: M
authors.lastname: Rosette-Narece
authors.forename: H
authors.initials: H
authors.lastname: Gin
authors.forename: V
authors.initials: V
authors.lastname: Rigalleau
mesh_terms: D001786:Blood Glucose / Q000378:metabolism; D015992:Body Mass Index; D016022:Case-Control Studies; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000453:epidemiology / Q000517:prevention & control; D004734:Energy Metabolism; D015444:Exercise; D005260:Female; D005602:France / Q000453:epidemiology; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D018670:Monitoring, Ambulatory / Q000379:methods*; D009043:Motor Activity; D009765:Obesity / Q000097:blood* / Q000453:epidemiology / Q000517:prevention & control
chemical_list: D001786:Blood Glucose