Trends in adherence to recommended physical activity and its effects on cardiovascular risk factors in US adults with cardiovascular disease: a cross-sectional study

Background: Being physically active is important for cardiovascular health. This study aimed to examine the trend in adherence to the Physical Activity Guidelines (PAG) for aerobic activity among US adults with a history of cardiovascular disease (CVD) and quantified its association with cardiovascular risk factors. Methods: : We studied participants from the National Health and Nutrition Examination Survey 2007-08 to 2017-18. Regression models were used to evaluate the significance of the trend and the association between adherence to the PAG with cardiovascular risk factors. Results: : A total of 3638 participants were reported to have a history of CVD. The proportion of adherence to PAG significantly increased from 41.5% in 2007-08 to 54.3% in 2017-18. Male had a higher proportion of adherence compared to the female, while the trend in adherence was only significant in females. Adherence to the PAG was significantly associated with decreased levels of waist circumference, body mass index, hemoglobin A1c, and triglycerides. Conclusions: : There is a significant increase in the proportion of adherence to the PAG among US adults with a history of CVD from 2007-08 to 2017-18, and adherence to the PAG was associated with better cardiovascular health.