The role and validity of actigraphy in sleep medicine: An update

Sampling compliance for cortisol upon awakening in children and adolescents

“…A more precise measure, such as polysomnography (simultaneous recording of brain wave activity, eye movement) would yield an exact measure of waking. However, accelerometery is considered a valid proxy of wake-time and is used extensively in the field of sleep research (Sadeh, 2011;Zeiders et al, 2011;Anders et al, 2012). Additionally, sleeping with the accelerometer did not interfere with the quality of the participant's sleep, as 75% of the participants reported having an average night sleep or better.…”

“…Adults' compliance with sampling upon awakening has been investigated using accelerometry technology to detect physical movement and postural changes (Kupper et al, 2005;Dockray et al, 2008;DeSantis et al, 2010;Griefahn and Robens, 2011). Postural change from lying down (supine) to sitting up in bed or standing is deemed a valid proxy for waking in the sleep literature (Sadeh, 2011;Zeiders et al, 2011;Anders et al, 2012). In these adult accelerometry studies, only 15-19% of awake 0 samples were taken without delay, whereas 82-90% were taken within 15 min of wake-time (Dockray et al, 2008;DeSantis et al, 2010).…”

Poor Parental Sleep and the Reported Sleep Quality of Their Children

“…4,5 The device is a small wristwatch-like band attached to the examinee's wrist, hip, or ankle. The method examines the amount of movement acceleration in time.…”

Efficacy of a Topical Aromatic Rub (Vicks VapoRub<sup>®</sup>) on Effects on Self-Reported and Actigraphically Assessed Aspects of Sleep in Common Cold Patients

“…Sleep parameters were measured using subjective questionnaires (Subjective Quality of Sleep Questionnaire [SQSQ] [20], a modified Karolinska Sleep Diary [KSD] [21], and a study-specific post-sleep questionnaire) and actigraphy, an objective method of monitoring rest-activity patterns [22]. Several subjective questionnaires were employed because this was the first exploration of the effect of VVR on sleep parameters so little knowledge existed of likely effect size or which elements of sleep may be affected.…”