*Present address: Faculty of Medicine and Dentistry, Department of Pediatrics and Child Health, University of Alberta, Edmonton, Alberta, Canada
Improved cardiovascular health following a progressive walking and dietary intervention for type 2 diabetes
Article first published online: 10 JUL 2009
© 2009 Blackwell Publishing Ltd
Diabetes, Obesity and Metabolism
Volume 11, Issue 9, pages 836–843, September 2009
How to Cite
Johnson, S. T., Bell, G. J., McCargar, L. J., Welsh, R. S. and Bell, R. C. (2009), Improved cardiovascular health following a progressive walking and dietary intervention for type 2 diabetes. Diabetes, Obesity and Metabolism, 11: 836–843. doi: 10.1111/j.1463-1326.2009.01050.x
- Issue published online: 20 AUG 2009
- Article first published online: 10 JUL 2009
- Received 21 October 2008; returned for revision 14 January 2009; revised version accepted 17 February 2009
Vol. 14, Issue 4, 385, Article first published online: 5 MAR 2012
- Type 2 diabetes;
- glycemic index;
- improved cardiovascular health
Aim: To examine the impact of two different lifestyle programmes on cardiovascular health and glycaemic control among people with type 2 diabetes.
Methods: A two-phase 24-week randomized trial. During the first phase, participants were to increase daily steps using a pedometer. At week 12, participants were randomly allocated to either an enhanced lifestyle programme (ELP) targeting walking speed or a basic lifestyle programme (BLP) targeting total daily steps. Both programmes focused on increasing the intake of low glycaemic index foods but utilized different goal setting strategies. Clinical measurements were completed at baseline, week 12 and week 24. Principal outcomes were change in resting pulse rate (PR) and glycated haemoglobin A1c (A1c) between week 12 and week 24 compared between groups using analysis of covariance.
Results: Forty-one participants [mean ± s.d. : age = 56.5 ± 7.2 years, body mass index (BMI) = 32.7 ± 6.1 kg/m2] were randomized. After 12 weeks, we observed an increase in average total daily steps of 1562 (95% confidence interval: 303–2821, p = 0.02). Weight, BMI and systolic and diastolic blood pressure improved (p < 0.01 for all). No changes were observed for energy intake. At week 24, those in the ELP had a lower resting PR (71 ± 12 b.p.m.) compared with those in the BLP (78 ± 12 b.p.m.) (adjusted p = 0.03), while no group differences for total daily steps or glycaemic control were observed.
Conclusions: Improvements in cardiovascular health can be expected following a pedometer-based lifestyle modification programme that progresses from walking more to walking faster.