actigraph


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actigraph

[ak′tigraf′]
any instrument that records changes in the activity of a substance or an organism and produces a graphic record of the process, such as an electrocardiograph.
References in periodicals archive ?
More than 3,000 adult participants in NHANES wore an actigraph for 7 days to measure physical activity.
Then, we provided participants with a GT3X+ Actigraph accelerometer along with an oral and written explanation of the appropriate wearing and handling of the device.
2010) Associations between obstructive sleep apnea, metabolic syndrome, and sleep duration, as measured with an actigraph, in an urban male working population in Japan.
On each data collection day, participants wore an ActiGraph GT3X+ accelerometer (Shalimar, Florida) on their right hip for the duration of each PA class.
They are also equipped with actigraph watches to monitor their sleep-wake patterns.
The study included 31 older adults (ages 55-82) who wore a small device called an ActiGraph, which recorded information including how many steps each took, how vigorous the steps were and how much time it involved, Medical Xpress reported.
Comparison of the IPAQ-A and actigraph in relation to V[O.
Validity and reliability of physical activity questionnaires Criterion method--objective measures Validity Reference analysis sample Measure Chasan- Actigraph Taber et al.
An actigraph automatically monitors and logs sleep.
The diagnostic sleep apnea devices segment is further segmented into polysomnography (PSG) devices, respiratory polygraphs, pulse oximeters and actigraph systems and the treatment sleep apnea devices are further sub segmented into positive airway pressure (PAP) devices, facial interfaces, adaptive servo ventilation (ASV), airway clearance systems, oxygen concentrators, oral appliances and accessories.
Changes in sleep-wake cycle during the period from late pregnancy to puerperium identified through the wrist actigraph and sleep logs.