title: No effect of long-term physical activity on the glycemic control in type 1 diabetes patients: a cross-sectional study.
abstract: BACKGROUND
  The main purpose of the present study was to assess the relation between long-term physical activity and glycemic control in patients with type 1 diabetes mellitus.
  
  
  METHODS
  Medical data and blood samples for the determination of glycosylated hemoglobin (glyHb) were collected in 221 consecutive type 1 diabetes patients between 18 and 45 years of age without late complications. A self-report questionnaire was used to determine the degree of physical activity. Correlation coefficients and analysis of variance were used for statistical analyses.
  
  
  RESULTS
  No correlation was observed between the different levels of physical activity and glycemic control. Females showed a significantly higher total physical activity index than males (p = 0.004), mostly due to the leisure time activity index. More active patients used a lower amount of insulin (r = -0.20, p = 0.002) than less active patients.
  
  
  CONCLUSIONS
  Glycemic control was not found to be associated with long-term physical activity in type 1 diabetes patients. Physical activity did not negatively affect long-term glycemic control.
authors.affiliation: Department of Internal Medicine, University Hospital Utrecht, The Netherlands. pligtenb@digd.azu.nl
authors.forename: P C
authors.initials: PC
authors.lastname: Ligtenberg
authors.forename: M
authors.initials: M
authors.lastname: Blans
authors.forename: J B
authors.initials: JB
authors.lastname: Hoekstra
authors.forename: I
authors.initials: I
authors.lastname: van der Tweel
authors.forename: D W
authors.initials: DW
authors.lastname: Erkelens
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D003922:Diabetes Mellitus, Type 1 / Q000097:blood* / Q000188:drug therapy; D004305:Dose-Response Relationship, Drug; D015444:Exercise; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D007004:Hypoglycemic Agents / Q000627:therapeutic use*; D007328:Insulin / Q000627:therapeutic use*; D008297:Male; D012737:Sex Factors; D011795:Surveys and Questionnaires / Q000592:standards; D013997:Time Factors
chemical_list: D006442:Glycated Hemoglobin; D007004:Hypoglycemic Agents; D007328:Insulin