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https://www.readbyqxmd.com/read/29793184/an-actigraphic-study-of-the-sleep-patterns-of-younger-and-older-school-age-children
#1
Reut Gruber, Gail Somerville, Samantha Wells, Deniz Keskinel, Jose Arturo Santisteban
OBJECTIVE: Sleep is viewed as being relatively consistent across the school-age period (6-13 years of age), however this claim has not been empirically supported. The objective of this study was to document the duration, schedule, variability, and week versus weekend discrepancies of sleep in three distinct age groups within the school-age period. METHODS: Participants were divided by age: Cycle 1, 6 and 7 years; Cycle 2, 8 and 9 years; and Cycle 3, 10 and 11 years...
April 10, 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29789809/development-of-step-count-cut-points-for-school-day-vigorous-physical-activity
#2
Ryan D Burns, Timothy A Brusseau, You Fu, Peng Zhang
Background: No study has established step-count cut points for varying amounts of accelerometer-assessed vigorous physical activity (VPA) accrued during the school day in children. The purpose of this study was to establish step-count cut points for discriminating children meeting VPA in 5 minutes, 10 minutes, 15 minutes, and 20 minutes per 7-hour school day. Methods: Participants were a convenience sample of 1,053 children (mean age = 8.4 (1.8) years) recruited from 5 schools from the Mountain West region of the USA...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29785450/light-intensity-physical-activity-increases-and-sedentary-behavior-decreases-following-total-knee-arthroplasty-in-patients-with-osteoarthritis
#3
Emmanuel Frimpong, Joanne A McVeigh, Dick van der Jagt, Lipalo Mokete, Yusuf S Kaoje, Mohammed Tikly, Rebecca M Meiring
PURPOSE: To describe objectively measured changes in the volume and pattern of physical activity and sedentary behavior in patients undergoing total knee arthroplasty for osteoarthritis. METHODS: Physical activity and sedentary behavior were measured in patients (13 males, 76 females) with a mean age of 64 years (range 55-80) and end-stage osteoarthritis of the knee, using an accelerometer (ActiGraph GT3X+) for seven consecutive days (24 h/day) prior to, 6 weeks and 6 months after total knee arthroplasty...
May 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29778919/actigraphy-data-in-pediatric-research-the-role-of-sleep-diaries
#4
Émilie Tétreault, Marie-Ève Bélanger, Annie Bernier, Julie Carrier
BACKGROUND: When assessing children's sleep using actigraphy, researchers usually rely on a sleep diary completed by a parent as an aid in scoring actigraphic data. However, parental nonadherence in completing the sleep diary may significantly reduce the amount of available data. The current study examined the agreement between actigraphic data scored with and without a sleep diary to evaluate the impact of not using a sleep diary when studying children's sleep with actigraphy. METHODS: Sixty children (aged 6-10 years; 36 girls) wore an actigraph for three to seven consecutive nights, and mothers were asked to complete a diary of their child's sleep during the same period...
January 3, 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29773217/sleep-assessment-in-aging-adults-with-type-2-diabetes-agreement-between-actigraphy-and-sleep-diaries
#5
Bingqian Zhu, Ulf G Bronas, Cynthia Fritschi
OBJECTIVE: Actigraphy and sleep diaries have been widely used to evaluate various sleep parameters. However, their agreement in diabetes patients remains unclear. The objective of this study was to examine the agreement between sleep outcomes measured by actigraphy and sleep diaries in aging adults with type 2 diabetes (T2D). METHODS: A convenience sample of 53 T2D adults (aged 50-76 years) were enrolled. Participants wore a wrist ActiGraph and filled out a daily sleep diary for eight days...
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29772819/do-young-people-ever-sit-still-variations-in-accelerometer-counts-muscle-activity-and-heart-rate-across-various-sedentary-activities-in-youth
#6
Evi van Ekris, Mai J M Chinapaw, Joost Rotteveel, Teatske M Altenburg
Evidence of adverse health effects of TV viewing is stronger than for overall sedentary behaviour in youth. One explanation may be that TV viewing involves less body movement than other sedentary activities. Variations in body movement across sedentary activities are currently unknown, as are age differences in such variations. This study examined body movement differences across various sedentary activities in children and adolescents, assessed by hip-, thigh- and wrist-worn accelerometers, muscle activity and heart rate...
May 17, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29764869/tele-upcat-study-protocol-of-a-randomised-controlled-trial-of-a-home-based-tele-monitored-upper-limb-children-action-observation-training-for-participants-with-unilateral-cerebral-palsy
#7
Giuseppina Sgandurra, Francesca Cecchi, Elena Beani, Irene Mannari, Martina Maselli, Francesco Paolo Falotico, Emanuela Inguaggiato, Silvia Perazza, Elisa Sicola, Hilde Feys, Katrijn Klingels, Adriano Ferrari, Paolo Dario, Roslyn N Boyd, Giovanni Cioni
INTRODUCTION: A new rehabilitative approach, called UPper Limb Children Action Observation Training (UPCAT), based on the principles of action observation training (AOT), has provided promising results for upper limb rehabilitation in children with unilateral cerebral palsy (UCP). This study will investigate if a new information and communication technology platform, named Tele-UPCAT, is able to deliver AOT in a home setting and will test its efficacy on children and young people with UCP...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29762213/feasibility-of-a-cognitive-behavioral-and-environmental-intervention-for-sleep-wake-difficulties-in-community-dwelling-cancer-patients-receiving-palliative-care
#8
Marie Solange Bernatchez, Josée Savard, Marie-Hélène Savard, Michèle Aubin
BACKGROUND: High rates of sleep-wake difficulties have been found in patients with cancer receiving palliative care. Pharmacotherapy is the most frequently used treatment option to manage these difficulties despite numerous adverse effects and the absence of empirical evidence of its efficacy and innocuity in palliative care. OBJECTIVE: This pilot study aimed to assess the feasibility and acceptability of a cognitive-behavioral and environmental intervention (CBT-E) to improve insomnia and hypersomnolence in patients with a poor functioning level and to collect preliminary data on its effects...
May 14, 2018: Cancer Nursing
https://www.readbyqxmd.com/read/29754862/the-use-of-a-fitbit-device-for-assessing-physical-activity-and-sedentary-behavior-in-preschoolers
#9
Wonwoo Byun, Youngwon Kim, Timothy A Brusseau
OBJECTIVE: To determine the accuracy of the Fitbit Flex (FF) activity monitor for assessing preschoolers' physical activity (PA) and sedentary behavior (SED) in free-living conditions. STUDY DESIGN: This is a cross-sectional study of 27 preschoolers (41% girls; age, 4.9 years) who each wore the FF and ActiGraph GT3X+ (AG) simultaneously for 24 hours. Raw data from each device were temporally matched and summarized into estimates of SED, moderate-to-vigorous PA, and total PA after removing sleep and nonwear time periods...
May 10, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29753192/circadian-activity-rhythm-in-adult-attention-deficit-hyperactivity-disorder
#10
Lorenzo Tonetti, Andreas Conca, Giancarlo Giupponi, Marco Filardi, Vincenzo Natale
The aim of the present study was to analyze the features of circadian motor activity rhythm of adult attention-deficit hyperactivity disorder (ADHD) patients, by means of functional linear modeling, within the theoretical framework of the two-process model of sleep regulation. Thirty-two ADHD patients and 32 healthy controls (HCs) participated the study. Actiwatch AW64 actigraph was used to quantify motor activity data in 1-min epochs. Participants wore the actigraph on the non-dominant wrist for seven consecutive days...
May 6, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29745805/patterns-of-accelerometer-derived-sedentary-time-across-the-lifespan
#11
Diana A Santos, Pedro B Júdice, João P Magalhães, Inês R Correia, Analiza M Silva, Fátima Baptista, Luís B Sardinha
We aimed to describe ST and its patterns on a national level. A hip-worn accelerometer (ActiGraph GT1M) was used to collect data during waking hours from 4575 Portuguese' participants from 2007-2009 (2683 females) aged 10-102 years old. Data was presented by sex, in 5-years age intervals, and by adolescents (n=2833), adults (n=1122), and older adults (n=620). Lambda-mu-sigma (LMS) smoothed percentile curves were estimated. Girls, women, and older women spent 61, 57, and 64% of wear time in ST, respectively...
May 10, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29741674/evaluating-the-effects-of-general-anesthesia-on-sleep-in-children-undergoing-elective-surgery-an-observational-case-control-study
#12
S Selvadurai, J T Maynes, C McDonnell, S L Cushing, E J Propst, A Lorenzo, A Lim, L J Meltzer, Zihang Lu, R L Horner, I Narang
Study Objectives: Previous research has suggested that general anesthetics can disturb postoperative sleep patterns by affecting the sleep-wake cycle. The objective was to identify the effects of general anesthetics on sleep quality and related behavioral changes in children. Methods: This was a prospective, observational case-control study with children, aged 18 months to 8 years, undergoing general anesthesia for elective surgery. Subjects wore an actigraph for seven days on three occasions: prior to surgery, the immediate postoperative period, and three months after surgery...
May 7, 2018: Sleep
https://www.readbyqxmd.com/read/29730607/cross-sectional-associations-of-active-transport-employment-status-and-objectively-measured-physical-activity-analyses-from-the-national-health-and-nutrition-examination-survey
#13
Lin Yang, Liang Hu, J Aaron Hipp, Kellie R Imm, Rudolph Schutte, Brendon Stubbs, Graham A Colditz, Lee Smith
BACKGROUND: To investigate associations between active transport, employment status and objectively measured moderate-to-vigorous physical activity (MVPA) in a representative sample of US adults. METHODS: Cross-sectional analyses of data from the National Health and Nutrition Examination Survey. A total of 5180 adults (50.2 years old, 49.0% men) were classified by levels of active transportation and employment status. Outcome measure was weekly time spent in MVPA as recorded by the Actigraph accelerometer...
May 5, 2018: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29726906/associations-of-sedentary-time-and-diabetes-in-6166-older-women-the-objective-physical-activity-and-cardiovascular-health-study
#14
John Bellettiere, Genevieve N Healy, Michael J LaMonte, Jacqueline Kerr, Kelly R Evenson, Eileen Rillamas-Sun, Chongzhi Di, David M Buchner, Melbourne F Hovell, Andrea Z LaCroix
Background: We examined associations of sedentary time and sedentary accumulation patterns (i.e., how sedentary time is accumulated) with prevalent diabetes in an ethnically diverse cohort of older women. Methods: Community-dwelling women aged 63-99 (n=6,116; median age=79) wore ActiGraph GT3X+ accelerometers 24 hours/day for up to seven days from which we derived average daily sedentary time and three measures of sedentary accumulation patterns: breaks in sedentary time, usual sedentary bout duration, and alpha...
May 3, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29724038/reliability-of-using-motion-sensors-to-measure-children-s-physical-activity-levels-in-exergaming
#15
Nan Zeng, Xingyuan Gao, Yuanlong Liu, Jung Eun Lee, Zan Gao
OBJECTIVES: This study examined the reliability of two objective measurement tools in assessing children’s physical activity (PA) levels in an exergaming setting. METHODS: A total of 377 children (190 girls, Mage = 8.39, SD = 1.55) attended the 30-min exergaming class every other day for 18 weeks. Children’s PA levels were concurrently measured by NL-1000 pedometer and ActiGraph GT3X accelerometer, while children’s steps per min and time engaged in sedentary, light, and moderate-to-vigorous PA were estimated, respectively...
May 2, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29713992/accelerometer-derived-activity-phenotypes-in-young-adults-a-latent-class-analysis
#16
Erin K Howie, Anne L Smith, Joanne A McVeigh, Leon M Straker
PURPOSE: To identify "activity phenotypes" from accelerometer-derived activity characteristics among young adults. METHODS: Participants were young adults (n = 628, mean age, 22.1, SD 0.6) in the Raine Study in Western Australia. Sex-specific latent class analyses identified sub-groups using eight indicators derived from 7-day hip-worn Actigraph GT3X+ accelerometers: daily steps, total daily moderate-to-vigorous physical activity (MVPA), MVPA variation, MVPA intensity, MVPA bout duration, sedentary-to-light ratio, sedentary-to-light ratio variation, and sedentary bout duration...
April 30, 2018: International Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29708474/converting-between-estimates-of-moderate-to-vigorous-physical-activity-derived-from-raw-accelerations-measured-at-the-wrist-and-from-actigraph-counts-measured-at-the-hip-the-rosetta-stone
#17
Keith Brazendale, Michael W Beets, Alex V Rowlands, Jessica L Chandler, Stuart J Fairclough, Lynne M Boddy, Tim S Olds, Gaynor Parfitt, Robert J Noonan, Samantha J Downs, Dylan P Cliff
The ability to compare published group-level estimates of objectively measured moderate-to-vigorous physical activity (MVPA) across studies continues to increase in difficulty. The objective of this study was to develop conversion equations and demonstrate their utility to compare estimates of MVPA derived from the wrist and hip. Three studies of youth (N = 232, 9-12yrs, 50% boys) concurrently wore a hip-worn ActiGraph and a wrist-worn GENEActiv for 7-days. ActiGraph hip count data were reduced using four established cutpoints...
April 30, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29708297/sleep-habits-in-adolescents-with-type-1-diabetes-variability-in-sleep-duration-linked-with-glycemic-control
#18
Niral J Patel, Kimberly L Savin, Sachini N Kahanda, Beth A Malow, Lauren A Williams, Gray Lochbihler, Sarah S Jaser
OBJECTIVE: To describe adolescents' sleep on school and weekend nights using multiple methods, and to examine the links between sleep variability, quality and duration with diabetes indicators. METHODS: Adolescents with type 1 diabetes (N=65, mean age=15.0, 52.3% female, mean HbA1c=8.9% or 74 mmol/mol) wore an actigraph and kept daily diaries recording sleep, activities, and blood glucose monitoring (BGM) habits for at least 7 days. Average daily BGM and blood glucose levels (BG) were obtained through glucometer downloads...
April 30, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29704922/the-validity-and-reliability-of-consumer-grade-activity-trackers-in-older-community-dwelling-adults-a-systematic-review
#19
REVIEW
Nicola Straiton, Muaddi Alharbi, Adrian Bauman, Lis Neubeck, Janice Gullick, Ravinay Bhindi, Robyn Gallagher
OBJECTIVE: To understand the validity and reliability of consumer-grade activity trackers (consumer wearables) in older, community-dwelling adults. METHODS: A systematic review of studies involving adults aged over 65 years who underwent physical activity monitoring with consumer wearables. A total of 7 observational studies qualified, identified from electronic databases: MEDLINE, EMBASE, Cochrane Library and others (2014-2018). Validity was interpreted using correlation coefficients (CC) and percentage error for agreement between reference devices or gold-standard validation methods Reliability was compared using mean differences or ranges (under- or overestimation) of step count and activity time...
June 2018: Maturitas
https://www.readbyqxmd.com/read/29701486/can-an-automated-sleep-detection-algorithm-for-waist-worn-accelerometry-replace-sleep-logs
#20
Tiago V Barreira, Jessica G Redmond, Tom D Brutsaert, John M Schuna, Emily F Mire, Peter T Katzmarzyk, Catrine Tudor-Locke
The purpose of this study was to test whether estimates of bedtime, wake time, and sleep period time (SPT) were comparable between an automated algorithm (ALG) applied to waist-worn accelerometry data and a sleep log (LOG), in an adult sample. A total of 104 participants were asked to log evening bedtime and morning wake time and wear an ActiGraph GT3X+ accelerometer at their waist 24 h/days for 7 consecutive days. Mean difference (MD) and mean absolute difference (MAD) were computed. Pearson correlations and dependent sample t-tests were used to compare LOG-based and ALG-based sleep variables...
April 27, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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