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Assessment of Chronic Pain Patients
Published in Andrea Kohn Maikovich-Fong, Handbook of Psychosocial Interventions for Chronic Pain, 2019
The gold standard for measuring sleep is the polysomnography, but this is not always feasible or realistic (McGrath et al., 2008). Other measures mentioned by the Ped-IMMPACT group are actigraphy and sleep diaries completed by the parent, the child, or both. Actigraphy is a small, watch-like device that measures movement via a sensor. The Children’s Sleep Habits Questionnaire (CSHQ; Owens et al., 2000), which surveys school-age children regarding their sleep, also could be useful (McGrath et al., 2008).
Sleep research recording methods
Published in Philip N. Murphy, The Routledge International Handbook of Psychobiology, 2018
The most significant technological advance in objective sleep assessment over the last twenty years has been activity-based monitoring, or actigraphy, the use of which is now widespread in sleep research. An actigraph is a small, non-intrusive device that looks like a wristwatch and collects high-resolution accelerometry (movement and velocity) data as the participant follows their regular routine. The device is typically worn around the non-dominant wrist and stores data until they are downloaded in the lab for analysis. The participant’s diary is then used to identify sleep and device-off periods. Those sleep periods are analyzed using well-validated, proprietary software algorithms. Note that identification of individual sleep stages is not currently possible using actigraphy.
Sleep, dreams, and athletic performance
Published in Michael Kellmann, Jürgen Beckmann, Sport, Recovery, and Performance, 2017
Daniel Erlacher, Felix Ehrlenspiel
Recently, a considerable amount of data on sleep in athletes have been published, reflecting the growing interest of this topic in sports and sport sciences. Most of the studies undertaken in athletes have applied subjective measures and/or actigraphy to collect objective sleep data and therefore the question arises of how valid are those measures in this special population. For example, Lastella, Roach, Halson, and Sargent (2015) reported data of 124 elite athletes over a different number of nights. One interesting result is that athletes from swimming or triathlon have quite low hours of total sleep time (6.4 and 6.1 hours) compared to their bed time (8.5 and 7.9 hours) resulting in low sleep efficiency. Keeping in mind that physical activity is usually promoting sleep (Youngstedt, 2005) it seems almost that elite sport degrades sleep quality and sleep quantity (Gupta, Morgan, & Gilchrist, 2017). However, as mentioned before, actigraphy measures in athletes might be special. In a recent study by Sargent and colleagues (2016), the validity of activity monitors for measuring sleep was tested in elite athletes and results showed that indeed athletes have lower sensitive scores (i.e., ability to detect sleep) than a healthy normal population, e.g., athletes move more often during sleep which leads to underestimation of sleep. Furthermore, the study by Sargent and colleagues (2016) stresses the importance to report exact methodological protocol (e.g., threshold settings for actigraphy) because the outcome on sleep parameters might differ tremendously.
The sustained attention characteristics of flight crews on exempt and non-exempt flights
Published in Chronobiology International, 2023
Jingqiang Li, Xining Zhang, Yanru Zhou
ActiLife 6.13.4 software downloaded and analyzed sleep data from the crew’s flights. The ActiGraph tool is used by researchers globally to capture and record continuous, high-resolution physical activity and sleep/wake information. ActiGraph utilizes validated three-axis accelerometer and digital filtering technology and includes integrated wear time and ambient light sensors. This study focused on four sleep indicators, all of which were measured by the ActiGraph bracelet: Total Sleep Time (TST): summed duration of all time periods scored as sleep;Efficiency: total sleep time/total time in bed;Wake After Sleep Onset (WASO): total awake time during sleep;Movement Index (MI): based on nighttime movement after sleep, including the actions of turning over, getting up, and hand movements during sleep.
Self-management to promote physical activity after discharge from in-patient stroke rehabilitation: a feasibility study
Published in Topics in Stroke Rehabilitation, 2023
Lívia CG Caetano, Louise Ada, Sant’Anna Romeu Vale, Luci F Teixeira-Salmela, Aline A Scianni
In terms of feasibility of measuring clinical outcomes, the duration of the measurement sessions was long (1.5 hr) and may have influenced the decision for some participants to withdraw. The main outcome of interest was physical activity, and the actual amount was measured over 7 days using an activity monitor. This proved to be important given that self-reported measures of physical activity using the IPAQ did not agree with measures of actual activity measured by the ACTIGRAPH. Activity monitors have been used extensively in research; however, some issues regarding these accelerometers have been reported.11 The main problem with the ACTIGRAPH used in the present study was the impossibility of using it in situations that it could get wet, such as during aquatic exercises and activities outside home on rainy days. One participant removed the monitor a few times because he felt uncomfortable with it. In addition, the monitor sometimes registered counts when the participant was driving. However, there were no records of technical failures of the monitor during the measurement days.
Rest-activity daily rhythm and physical activity levels after hip and knee joint replacement: the role of actigraphy in orthopedic clinical practice
Published in Chronobiology International, 2021
Jacopo Antonino Vitale, Giuseppe Banfi, Valentina Tivolesi, Catia Pelosi, Stefano Borghi, Francesco Negrini
To our knowledge, this is the first study that adopted a chronobiologic approach to objectively analyze PA levels and RAR in patients undergoing hip or knee joint replacement and hospitalized for ten consecutive days. Overall, the results showed that all patients maintained a significant and physiological RAR in all the post-surgery time-points excluding POST1, and, similarly, actigraphy-based scores of mean and total activity counts were significantly lower the day after surgery compared to PRE, POST4, and POST10. Our initial hypotheses were confirmed. In addition, no side effects or issues in wearing the actigraphs were detected or reported. The actigraph is indeed a small device, typically worn at the wrist, that can measure sleep, circadian rhythm, activity rhythm, and activity in general and its advantages are the high level of mobility, low costs, the possibility of measuring for longer periods and the higher levels of sensitivity and specificity when compared to other common wearable devices (De Zambotti et al. 2019; Sargent et al. 2018).