Latest Actigraphy Stories

 A research abstract that will be presented on Tuesday, June 9, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, is the first demonstration of a specific neurochemical abnormality in adults with primary insomnia (PI), providing greater insight to the limited understanding of the condition's pathology.Results indicate that gamma-aminobutyric acid (GABA), the most common inhibitory transmitter in the brain, is reduced by nearly 30 percent in individuals...

Athletes who extended their nightly sleep and reduced accumulated sleep debt reported improvements in various drills conducted after every regular practice, according to a research abstract that will be presented on Monday, June 8, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies.Results of the study indicated that sleep extension in athletes was associated with a faster sprinting drill (approximately 19.12 seconds at baseline versus 17.56 seconds at end...

 According to a research abstract that will be presented on Monday, June 8 at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, days with increased activity were followed by nights with lower total sleep time (TST), while nights with lower TST were followed by increased activities during the next day.Results indicated that total sleep time increased by an average of 42 minutes a night only after days with low activity. In related findings, increased...

A study of sleep and activity found overweight people tended to sleep less and be more active than their skinnier counterparts, researchers found. As part of the Integrative Cardiac Health Project at Walter Reed Army Medical Center, the researchers analyzed the sleep and activity levels of 14 nurses. Dr. Arn Eliasson, the lead investigator, said each participant wore an actigraphy armband that measured total activity, body temperature, body position, and other indices of activity and...