Objective The purpose of this study was to examine the relationship between sleep (duration and quality) and diet quality among young adult women. Subjects: Three-hundred seventy-five women (18-24 years) were recruited to participate in the study. Measurement Each participant wore an actigraph for 7 consecutive nights to measure sleep. Sleep logs ...
Purpose To examine the energy balance pathways of diet and physical activity under conditions of acute sleep deprivation in normal-weight and obese women. Methods In counter-balanced fashion, 22 normal-weight (30.9±9.5 yrs, 22.0±1.6 kg/m2) and 18 obese (29.7±10.7 yrs, 36.4±5.3 kg/m2) women, with a consistent sleep-wake cycle, completed two separate free-living sleep conditions (Condition 1: one ...
Purpose Accelerometers could potentially be used to assess physical activity and sleep using the same monitor; however, two different positions are typically used for the assessment of physical activity and sleep (waist and wrist, respectively). The aim of this study is to evaluate the concordance between wrist- and waist-worn Actigraphs ...
Background: The aim of this study is to describe the relationship between objective measures of sleep, physical activity and BMI in Swedish pre-adolescents. The day-to-day association between physical activity and sleep quality as well as week-day and weekend pattern of sleep is also described. Method: We conducted a cross sectional ...
Objective The purpose of this study was to examine the effect that sleep duration and quality has on next day physical activity among a population of young adult women. Subjects: Three-hundred and seventy-five women (18-24 yrs) were recruited to participate in the study. Measurements Each participant wore an accelerometer for 7 ...
The last 20 yrs have seen a marked increase in studies utilizing actigraphy in free-living environments. The aim of the present study is to directly compare two commercially available actigraph devices with concurrent polysomnography (PSG) during a daytime nap in healthy young adults. Thirty healthy young adults, ages 18–31 (mean 20.77 yrs, SD 3.14 ...
Objective To investigate the single and combined associations of physical activity (PA), body mass index (BMI), and sleep duration with clustering of cardiovascular disease risk markers in healthy children. Methods We did a cross-sectional pilot-study of 74 Danish school children aged 8-11 years. Risk factors included in a continuous metabolic syndrome ...
This study compared measures of sleep from an accelerometer worn on the hip to measures obtained from an accelerometer worn on the wrist, the gold standard measure of sleep behavior in community research. The accelerometer worn on the hip provides a measure of total sleep time in 10- to 11-year-old ...
Statement of Problem Epidemiological studies examining the association between physical activity and sleep have relied on self-report measures of physical activity and have primarily been conducted in older adults. Therefore, to address these gaps in the literature, the purpose of the present study was to examine the association between objectively-measured ...
Introduction A tri-axis accelerometer has been extensively used in recent years. We report our recent evaluation of the usefulness of a three-axis accelerometer for sleep-wake scoring of healthy individuals and patients with sleep-disordered breathing (SDB). Methods Subjects Seven healthy university students 4 men, 3 women, mean age of 21.1±0.7 Seven SDB patients 6 men, 1 ...