Actigraphy has become a common method of measuring sleep due to its non-invasive, cost-
effective nature. An actigraph (Readiband™) that utilizes automatic scoring algorithms has …

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

Abstract Study Objectives Consumer sleep-tracking devices are widely used and becoming
more technologically advanced, creating strong interest from researchers and clinicians for …

Study Objectives: Consumer wearable devices may be a helpful method of assessing sleep,
but validation is required for their use in clinical practice. Our aim was to validate two models …

Abstract Study Objectives: To evaluate the reliability and validity of the commercially
available Fitbit Ultra (2012) accelerometer compared to polysomnography (PSG) and two …

The introduction of actigraphy in the early 1990s initiated a new era in sleep monitoring.
Actigraphy established itself as the accepted alternative to the gold-standard …

Purpose Physical activity (PA) and sleep are important to health; thus, it is important for
researchers to have valid tools to measure them. Accelerometers have been proven valid for …

The aims of this study were to:(1) compare actigraphy (ACTICAL) and a commercially
available sleep wearable (ie, WHOOP) under two functionalities (ie, sleep auto-detection …

Sleep/wake identification and sleep parameter estimates from Motionlogger Watch and
Actiwatch-64 actigraphs were compared to polysomnography (PSG). Following one night of …

Comparisons of actigraphy findings between studies are challenging given differences
between brand-specific algorithms. This issue may be minimized by using open-source …