Actigraphy in the ICU
CRITICAL ILLNESS MYOPATHY
Actigraphy, which relies on movements for its measurements, is not a replacement for polysomnography, particularly in the ICU, where medication, acute illness, and critical illness myopathy can all contribute to decreased activity. However, actigraphy does have benefits over polysomnography in that it is less cumbersome, data can be collected passively for long periods of time and over 24-h periods, and data collection is not limited to information about sleep. Furthermore, more recent digital devices use technology based on actigraphy, and many of these digital devices may be key in improving our approach to personalized medicine in the acute care setting