Dose-response association between step count and cardiovascular disease risk markers in middle aged adults

Several step-based daily targets have been widely circulated, but there is a lack of empirical population-based evidence to support such guidance. We examined dose-response associations between step count and classical CVD risk markers (glycated haemoglobin, high density lipoprotein cholesterol, triglycerides, C-reactive protein) in 4,665 adults (aged 46 yr; 51.4% female) in a cross-sectional study. Step counts were measured from a thigh mounted accelerometer (activPAL) worn over 7 days. The shape of the dose response curve for most risk markers was 'L-shaped', with linear risk reduction up to around 10,000 steps a day. Controlling for stepping intensity did not materially alter our results.