Background: Obesity has been a significant public health concern among US adults. Recently, a great attention has been given to the sedentary behavior (SB) in relation to obesity; however, controversial results have been reported due to the use of less accurate measures of SB and obesity in adults. Purpose: ...
Background: Physical activity patterns captured by accelerometers have been used to classify activity type with machine learning (ML) algorithms. ML may also be applied to accelerometer data for predicting cardiovascular (CV) health risk directly. Decision trees are efficient constructive search algorithms that develop rules for categorizing the data based ...
Background: Accelerometer-derived total activity count is a measure of total physical activity (PA) volume. The purpose of this study was to develop age- and gender-specific percentiles for daily total activity counts (TAC), minutes of moderate-to-vigorous physical activity (MVPA), and minutes of light physical activity (LPA) in U.S. adults. Purpose: ...
Purpose: Moderate-to-vigorous physical activity (MVPA) and sleep behaviors have been independently associated with increased risk for hypertension (HTN), the leading risk factor for stroke and heart disease. However, these behaviors may be synergistic in contributing to HTN. The purpose of this study was to examine the odds of hypertension diagnosis (...
Purpose: This study described the association of accelerometer-determined physical activity and sedentary behavior with all-cause mortality using a nationally representative sample from the United States. Methods: Using 2003-04 National Health and Nutrition Examination Survey (NHANES) data, 4000 adults at least 18 years wore an ActiGraph accelerometer for one week, providing at least 3 ...
Background: Lifestyle modification (i.e., weight loss, active lifestyle, healthy diet) is a recommended strategy for the prevention of type 2 diabetes and cardiovascular disease. The purpose of this study was to examine the relationship between receiving a health-care provider's recommendation and adherence to behavioral indicators of adaptation of a healthy ...
Background: The minimal physical activity intensity that would confer health benefits among adolescents is unknown. The purpose of this study was to examine the associations of accelerometer-derived light-intensity (split into low and high) physical activity, and moderate- to vigorous-intensity physical activity with cardiometabolic biomarkers in a large population-based sample. Methods: ...
Purpose: Chronic obstructive pulmonary disease (COPD) may cause not only inflammation in the lungs but also systemic effects. One potential strategy to reduce systemic inflammation and attenuate disease progression is physical activity (PA). However, no nationally representative studies, to our knowledge, have examined the association between objectively measured physical activity ...
Abstract: Sedentary behaviors are linked to adverse health outcomes, but the total amount of time spent in these behaviors in the United States has not been objectively quantified. The authors evaluated participants from the 2003–2004 National Health and Nutrition Examination Survey aged ≥6 years who wore an activity monitor for up to 7 ...
Abstract: Sleep and sedentary and active behaviors are linked to cardiovascular disease risk biomarkers, and across a 24-hour day, increasing time in 1 behavior requires decreasing time in another. We explored associations of reallocating time to sleep, sedentary behavior, or active behaviors with biomarkers. Data (n = 2,185 full sample; n = 923 fasting subanalyses) ...