Premium
Relationship between pedometer‐registered activity, aerobic capacity and self‐reported activity and fitness in patients with type 2 diabetes
Author(s) -
Bjørgaas M.,
Vik J. T.,
Sæterhaug A.,
Langlo L.,
Sakshaug T.,
Mohus R. M.,
Grill V.
Publication year - 2005
Publication title -
diabetes, obesity and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.445
H-Index - 128
eISSN - 1463-1326
pISSN - 1462-8902
DOI - 10.1111/j.1463-1326.2004.00464.x
Subject(s) - pedometer , medicine , physical therapy , type 2 diabetes , physical activity , aerobic exercise , physical fitness , diabetes mellitus , endocrinology
Aim: The aim of this study is to investigate the relationship between pedometer‐registered activity, aerobic capacity (VO 2max ) and self‐reported activity and fitness in patients with type 2 diabetes before and after a 12‐week exercise programme. Methods: Twenty‐nine men with type 2 diabetes (age = 57.4 (7.8) years, BMI = 31.7 (2.8) kg/m 2 ) underwent exercise testing, registered pedometer activity and reported their physical fitness and activity in a questionnaire. Participants were randomly allocated to an exercise (EX) group (n = 15) or a control (CO) group (n = 14). Participants in EX group were offered supervised exercise twice a week for 12 weeks. At the end of the study, participants again underwent exercise testing, fasting blood tests and registration of pedometer activity. Results: At baseline, pedometer activity correlated with VO 2max (r = 0.43, p = 0.02) and with perceived physical fitness (r = 0.48, p = 0.02). After, but not before, intervention, pedometer activity and VO 2max additionally correlated with perceived everyday activity (r = 0.62, p < 0.01 and r = 0.49, p = 0.03, respectively). Both EX and CO groups tended to increase pedometer activity. In EX group, weight decreased by 2.7% (p = 0.01), VO 2max increased 10.6% (p = 0.03) and HbA1c decreased by 5.2% from baseline (p = 0.02). In EX group, an increase in pedometer activity correlated with a fall in HbA1c (r = 0.84, p < 0.01) and in diastolic blood pressure (r = 0.77, p = 0.025). Conclusions: Pedometer activity correlates with VO 2max in type‐2 diabetic patients. Our exercise programme was well tolerated; it produced favourable effects on body weight, aerobic capacity and metabolic control. The use of pedometer may lead to more realistic assessment of perceived everyday physical activity.