This study determined if using alternative sleep onset (SO) definitions impacted
accelerometer-derived sleep estimates compared with polysomnography (PSG). Nineteen …

To evaluate the criterion validity of an automated sleep detection algorithm applied to data
from three research‐grade accelerometers worn on each wrist with concurrent laboratory …

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 …

Traditional measures of sleep or commercial wearables may not be ideal for use in
operational environments. The Zulu watch is a commercial sleep-tracking device designed …

Study Objectives: To improve sleep quality assessment using a single chest-worn sensor by
extracting body acceleration and sleep position changes. Methods: Sleep patterns of 21 …

Study Objectives: To validate a contact-free system designed to achieve maximal comfort
during long-term sleep monitoring, together with high monitoring accuracy. Methods: We …

Wrist worn raw-data accelerometers are used increasingly in large-scale population
research. We examined whether sleep parameters can be estimated from these data in the …

Abstract Study Objectives Multisensor wearable consumer devices allowing the collection of
multiple data sources, such as heart rate and motion, for the evaluation of sleep in the home …

Methods: Movement and cardiac data was collected from 60 adult subjects (36 M: 24 F, ages
34±10 yrs) wearing two wrist worn devices (left and right hand) containing a 3D …

Sleep and physical activity, two important health behaviors, are often studied independently
using different accelerometer types and body locations. Understanding whether …