Background Accelerometers are widely used to measure sedentary time, physical activity,
physical activity energy expenditure (PAEE), and sleep-related behaviors, with the …

In recent years, there has been a significant expansion in the development and use of multi-
modal sensors and technologies to monitor physical activity, sleep and circadian rhythms …

Wearable, multisensor, consumer devices that estimate sleep are now commonplace, but
the algorithms used by these devices to score sleep are not open source, and the raw …

Actigraphy, a method for inferring sleep/wake patterns based on movement data gathered
using actigraphs, is increasingly used in population-based epidemiologic studies because …

Wrist-worn accelerometers are increasingly being used for the assessment of physical
activity in population studies, but little is known about their value for sleep assessment. We …

Research indicates that high levels of sedentary behavior (sitting or lying with low energy
expenditure) are adversely associated with health. A key factor in improving our …

Actigraphs are compact, lightweight, computerized accelerometer-based devices that have
been used to evaluate sleep and wake in humans for nearly four decades. 1 While …

Background The relationship between inadequate sleep and mood has been well‐
established in adults and is supported primarily by correlational data in younger …

Objectives Actigraphy is widely used to estimate sleep–wake time, despite limited
information regarding the comparability of different devices and algorithms. We compared …

The inter-relationship between physical activity, sedentary behaviour and sleep (collectively
defined as physical behaviours) is of interest to researchers from different fields. Each of …