Latest Actigraphy Stories

ActiGraph, a leading provider of objective patient monitoring solutions for the global research community, announced today that it now supports the collection of heart rate variability measurements with the release of its ActiLife software version 6.5. Pensacola, FL (PRWEB) January 28, 2013 ActiGraph, a leading provider of objective patient monitoring solutions for the global research community, announced today that it now supports the collection of heart rate variability measurements...

April Flowers for redOrbit.com - Your Universe Online In an attempt to simulate a 520-day space mission to Mars, researchers in a groundbreaking new study lead by the Perelman School of Medicine at the University of Pennsylvania and the Baylor College of Medicine, have analyzed data on the impact of prolonged operational confinement on sleep, performance, and mood in astronauts. This new study, published online in the Proceedings of the National Academy of Sciences, demonstrates...

Victimization and/or witnessing a homicide have greater effects on the quality and quantity of children's sleep When violence shatters a child's world, the torment can continue into their sleep, according to researchers in Cleveland. The impact is measurable and affected by the severity of the violence, and the effects can last over time. The study, being presented today at SLEEP 2012, shows how the severity of a violent event affects a child's quality and quantity of sleep. The more...

(Ivanhoe Newswire) -- The National Commission on Sleep Disorders Research estimates that over 40 million Americans are chronically ill with various sleep disorders. A new study shows that among married couples, a wives inability to fall asleep at night could cause problems in her marriage.The researchers found that among wives, taking longer to fall asleep at night predicted their reports of more negative and less positive marital interactions the next day. It also predicted their husband's...

Sleep problems among urban minority children, including resistance to going to bed, shortened sleep duration, and daytime sleepiness are much more common than previously thought, according to a study conducted by researchers in New York.The results of the study will be presented at the ATS 2011 International Conference in Denver."Although studies have shown that children from minority populations take more daytime naps and have shorter nighttime sleep durations than their non-minority...

The popular consensus may be that new mothers do not get enough sleep, but that may be wrong. A new study, published in the American Journal of Obstetrics & Gynecology, suggests new mothers may often get a decent amount of sleep in their babies' first few months, but it is usually not good-quality sleep. The study, which followed a group of new moms, found that on average, moms got just over 7 hours of sleep per night during their babies' first four months. That is within what is...

Objective total sleep time is more strongly associated with self-reported relationship satisfaction than subjective sleep qualityFirst-time parents' relationship satisfaction is related to the amount of sleep they get while caring for an infant, according to a research abstract that will be presented Wednesday, June 9, 2010, in San Antonio, Texas, at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC.Results indicate that self-reported relationship...

Study uses 'Guitar Hero III' to show that sleep may play a role in the consolidation of a complex motor-learning taskYour performance of a complex motor-learning task such as "Guitar Hero" may improve after sleep, suggests a research abstract that will be presented Wednesday, June 9, 2010, in San Antonio, Texas, at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC.Results indicate that the improvement in performance accuracy on "Guitar Hero...

According to a research abstract that will be presented on Wednesday, June 10, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, getting more high-quality sleep is associated with better academic performance. The positive relationship is especially relevant to performance in math.Results indicate that higher math scores were related to greater sleep quality, less awakenings and increased sleep efficiency. Higher English and history scores were associated...

Middle-aged adults who slept an average of six hours per night were more likely to have high blood pressure, U.S. researchers found. Kristen L. Knutson of the University of Chicago and colleagues studied 578 adults who first had their blood pressure and other clinical, demographic and health variables measured from 2000-2001. In 2003 and 2005, sleep duration was measured using surveys and wrist actigraphy, in which a sensor is worn on the wrist to record periods of rest and activity. Blood...