@inproceedings{2fe7179e0a2743c9b5f31affed3a9168,
title = "Differences in light sleep and deep sleep measured with IST Vivago WristCare",
abstract = "Activity monitoring is a widespread alternative to polysomnography (PSG) in studying sleep/wake patterns because it enables inexpensive long-term monitoring and does not require laboratory conditions for recording. IST Vivagor WristCare is a wrist worn activity monitoring device, which has been found to produce similar results to traditional actigraphs in sleep/wake detection. The movement sensor of Vivagor is more sensitive to low intensity movements than that of traditional actigraphs. We compared activity measured with IST Vivagor during deep sleep, light sleep and awake. The results showed that average (p<0.001) and standard deviation (p<0.00001) of activity are significantly lower in deep sleep than in light sleep. However, minute-by-minute classification of sleep level was not successful. In conclusion, Vivagor activity gives indication of the overall sleep quality, but does not allow sleep stage classification.",
keywords = "IST Vivago WristCare, sleep quality, activity monitoring",
author = "Elina Lamminm{\"a}ki and Ari Saarinen and Jyrki L{\"o}tj{\"o}nen and Markku Partinen and Ilkka Korhonen",
year = "2005",
language = "English",
series = "IFMBE Proceedings",
publisher = "International Federation for Medical and Biological Engineering (IFMBE)",
booktitle = "Proceedings of the 3rd European Medical and Biological Engineering Conference, IFMBE Proceedings, 2005",
address = "France",
edition = "cd-rom",
note = "3rd European Medical and Biological Engineering Conference, EMBEC'05, EMBEC ; Conference date: 20-11-2005 Through 25-11-2005",
}