Bicycling to school improves the cardiometabolic risk factor profile: a randomised controlled trial.

ABSTRACT:

Objectives

To investigate whether bicycling to school improves cardiometabolic risk factor profile and cardiorespiratory fitness among children.

Design

Prospective, blinded, randomised controlled trial.

Setting

Single centre study in Odense, Denmark

Participants

43 children previously not bicycling to school were randomly allocated to control group (n=20) (ie, no change in lifestyle) or intervention group (ie, bicycling to school) (n=23).

Primary and secondary outcome measures

Change in cardiometabolic risk factor score and change in cardiorespiratory fitness.

Results

All participants measured at baseline returned at follow-up. Based upon intention-to-treat (ITT) analyses, clustering of cardiometabolic risk factors was lowered by 0.58 SD (95% CI -1.03 to -0.14, p=0.012) in the bicycling group compared to the control group. Cardiorespiratory fitness (l O(2)/min) per se did not increase significantly more in the intervention than in the control group (β=0.0337, 95% CI -0.06 to 0.12, p=0.458).

Conclusions

Bicycling to school counteracted a clustering of cardiometabolic risk factors and should thus be recognised as potential prevention of type 2 diabetes mellitus and cardiovascular disease (CVD). The intervention did, however, not elicit a larger increase in cardiorespiratory fitness in the intervention group as compared with the control group.

Trial registration

Registered at http://www.clinicaltrials.gov (NCT01236222).

SUBMITTER: Ostergaard L 

PROVIDER: S-EPMC3533114 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature