keyword
MENU ▼
Read by QxMD icon Read
search

Actigraph

keyword
https://www.readbyqxmd.com/read/28427441/physical-activity-among-children-objective-measurements-using-fitbit-one-%C3%A2-and-actigraph
#1
Lotta Hamari, Tiina Kullberg, Jukka Ruohonen, Olli J Heinonen, Natalia Díaz-Rodríguez, Johan Lilius, Anni Pakarinen, Annukka Myllymäki, Ville Leppänen, Sanna Salanterä
BACKGROUND: Self-quantification of health parameters is becoming more popular; thus, the validity of the devices requires assessments. The aim of this study was to evaluate the validity of Fitbit One step counts (Fitbit Inc., San Francisco, CA, USA) against Actigraph wActisleep-BT step counts (ActiGraph, LLC, Pensacola, FL, USA) for measuring habitual physical activity among children. DESIGN: The study was implemented as a cross-sectional experimental design in which participants carried two waist-worn activity monitors for five consecutive days...
April 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28425191/thank-god-it-s-friday-sleep-improved
#2
Helena Petersen, Göran Kecklund, Paolo D'Onofrio, John Axelsson, Torbjörn Åkerstedt
The weekend is usually seen as a window of recovery. Thus, sleep before a day off may be less impaired than that before a workday. However, very few polysomnographical studies have investigated this hypothesis. Therefore, the aim of the present study was to compare sleep before a workday with that before a weekend. Seventeen teachers participated. Sleep was recorded with polysomnography on one weekday night during the workweek, and on a workday (Friday) followed by a day off. Sleep diaries and actigraphs were also used...
April 20, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28425178/sleep-quality-clinical-and-psychological-manifestations-in-women-with-systemic-lupus-erythematosus
#3
Virginia Moraleda, Germán Prados, María P Martínez, Ana I Sánchez, José M Sabio, Elena Miró
AIM: Sleep problems are a common complaint in systemic lupus erythematosus (SLE) patients. We analyzed sleep quality with subjective and objective measures in a sample with SLE and its possible relationships with the main manifestations of the disease. METHODS: Twenty-one women with SLE and 20 healthy women participated in the study. All participants were evaluated with actigraphy for a week and they completed self-report instruments of sleep quality, quality of life, fatigue, anxiety, depression and perceived stress...
April 19, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28420602/the-fitbit-one-physical-activity-tracker-in-men-with-prostate-cancer-validation-study
#4
Erin L Van Blarigan, Stacey A Kenfield, Lucy Tantum, Lisa A Cadmus-Bertram, Peter R Carroll, June M Chan
BACKGROUND: Physical activity after cancer diagnosis improves quality of life and may lengthen survival. However, objective data in cancer survivors are limited and no physical activity tracker has been validated for use in this population. OBJECTIVE: The aim of this study was to validate the Fitbit One's measures of physical activity over 7 days in free-living men with localized prostate cancer. METHODS: We validated the Fitbit One against the gold-standard ActiGraph GT3X+ accelerometer in 22 prostate cancer survivors under free-living conditions for 7 days...
April 18, 2017: JMIR Cancer
https://www.readbyqxmd.com/read/28420483/an-evaluation-of-wearable-sensors-and-their-placements-for-analyzing-construction-worker-s-trunk-posture-in-laboratory-conditions
#5
Wonil Lee, Edmund Seto, Ken-Yu Lin, Giovanni C Migliaccio
This study investigates the effect of sensor placement on the analysis of trunk posture for construction activities using two off-the-shelf systems. Experiments were performed using a single-parameter monitoring wearable sensor (SPMWS), the ActiGraph GT9X Link, which was worn at six locations on the body, and a multi-parameter monitoring wearable sensor (MPMWS), the Zephyr BioHarness™3, which was worn at two body positions. One healthy male was recruited and conducted 10 experiment sessions to repeat measurements of trunk posture within our study...
April 15, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28420363/context-matters-sources-of-variability-in-weekend-physical-activity-among-families-a-repeated-measures-study
#6
Robert J Noonan, Stuart J Fairclough, Zoe R Knowles, Lynne M Boddy
BACKGROUND: Family involvement is an essential component of effective physical activity (PA) interventions in children. However, little is known about the PA levels and characteristics of PA among families. This study used a repeated measures design and multiple data sources to explore the variability and characteristics of weekend PA among families. METHODS: Families (including a 'target' child aged 9-11 years, their primary caregiver(s) and siblings aged 6-8 years) were recruited through primary schools in Liverpool, UK...
April 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28420221/a-narrative-review-actigraphy-as-an-objective-assessment-of-perioperative-sleep-and-activity-in-pediatric-patients
#7
REVIEW
Nicole Conrad, Joelle Karlik, Amy Lewandowski Holley, Anna C Wilson, Jeffrey Koh
Sleep is an important component of pediatric health and is crucial for cognitive development. Actigraphy is a validated, objective tool to capture sleep and movement data that is increasingly being used in the perioperative context. The aim of this review is to present recent pediatric studies that utilized actigraphy in the perioperative period, highlight gaps in the literature, and provide recommendations for future research. A literature search was completed using OVID and PubMed databases and articles were selected for inclusion based on relevance to the topic...
April 18, 2017: Children
https://www.readbyqxmd.com/read/28419817/objectively-measured-physical-activity-in-patients-after-anterior-cruciate-ligament-reconstruction
#8
David R Bell, Karin A Pfeiffer, Lisa A Cadmus-Bertram, Stephanie M Trigsted, Adam Kelly, Eric G Post, Joseph M Hart, Dane B Cook, Warren R Dunn, Christopher Kuenze
BACKGROUND: Returning to a healthy level of physical activity is among the most commonly discussed clinical goals for patients recovering from anterior cruciate ligament reconstruction (ACLR). However, physical activity has not been objectively measured in this population. PURPOSE: To investigate differences in the mean time (min/d) spent in moderate-to-vigorous physical activity (MVPA) as well as the daily step count (steps/d) between patients who underwent ACLR and matched controls...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28419028/physical-activity-assessment-with-the-actigraph-gt3x-and-doubly-labeled-water
#9
Andrea K Chomistek, Changzheng Yuan, Charles E Matthews, Richard P Troiano, Heather R Bowles, Jennifer Rood, Junaidah B Barnett, Walter C Willett, Eric B Rimm, David R Bassett
PURPOSE: To compare the degree to which four accelerometer metrics-total activity counts per day (TAC/d), steps per day (steps/d), physical activity energy expenditure (PAEE, kcal/kg/day), and moderate- to vigorous-intensity physical activity (MVPA, min/d)- were correlated with PAEE measured by doubly-labeled water (DLW). Additionally, accelerometer metrics based on vertical axis counts and triaxial counts were compared. METHODS: This analysis included 684 women and 611 men aged 43 - 83 years...
April 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28409677/circadian-pattern-of-motor-activity-in-adults-with-attention-deficit-hyperactivity-disorder
#10
Lorenzo Tonetti, Andreas Conca, Giancarlo Giupponi, Vincenzo Natale
This study aims to describe the 24-hour activity rhythm in adults with attention-deficit/hyperactivity disorder (ADHD). A total of 18 ADHD patients and 37 healthy controls (HCs) wore an actigraph for 7 days. ADHD patients showed higher motor activity than HCs at 4:00, 6:00, 15:00 and 16:00 hour. Within the theoretical framework of the two-process model of sleep regulation, the observed data may be explained by lower homeostatic sleep pressure in ADHD. This could lead to an increase in motor activity in the second half of the night, when sleep need decreases more rapidly, and in the first half of the afternoon, when patients do not experience the typical post-lunch dip...
April 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28405340/association-of-physiological-and-psychological-health-outcomes-with-physical-activity-and-sedentary-behavior-in-adults-with-type-2-diabetes
#11
Jeanette M Garcia, Daniel Cox, David J Rice
PURPOSE: To examine the association between change in moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) over a 6-month period with physiological and psychological factors in adults with type 2 diabetes (T2D). METHODS: Participants included 26 middle-aged (mean age=56.1±10.8 years; 42% women), overweight/obese (mean body mass index (BMI) =37.22±8.78 kg/m(2)) adults who had been diagnosed with T2D within the past 5 years (mean HbA1c=7...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/28394956/-being-physically-active-modifies-the-detrimental-effect-of-sedentary-behavior-on-obesity-and-cardiometabolic-markers-in-adults
#12
Carlos Salas, Carlos Cristi-Montero, Yu Fan, Eliana Durán, Ana María Labraña, María Adela Martínez, Ana María Leiva, Cristian Alvarez, Nicolás Aguilar-Farías, Rodrigo Ramírez-Campillo, Ximena Díaz Martínez, Ruth Sanzana-Inzunza, Carlos Celis-Morales
BACKGROUND: Sedentary behavior is a major risk factor for cardiovascular disease and mortality. AIM: To investigate whether the associations between sedentary behavior and cardiometabolic markers differs across physical activity levels. MATERIALS AND METHODS: Cross sectional study of 314 participants aged 18 to 65 years. Body mass index (BMI) and waist circumference were measured, and body fat was derived from the sum of four skinfolds. Physical activity was measured objectively using accelerometers (Actigraph GT1M, USA®)...
November 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28381219/cardiorespiratory-fitness-levels-and-associations-with-physical-activity-and-body-composition-in-young-south-african-adults-from-soweto
#13
A Prioreschi, S Brage, K Westgate, S A Norris, L K Micklesfield
BACKGROUND: This observational study aims to describe fitness, and objectively measured physical activity levels and patterns in 409 young black South African adults (aged 19-20 years) from Soweto, as well as to examine associations between physical activity, fitness and BMI. METHODS: A sub-maximal ramped step test was used to obtain an estimate of maximal oxygen uptake (VO2max). Physical activity was measured using ActiGraph (GT1M) for 7 days in 256 participants...
April 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28378107/temporal-daily-associations-among-sleep-and-pain-in-treatment-seeking-youth-with-acute-musculoskeletal-pain
#14
Amy Lewandowski Holley, Jennifer Rabbitts, Chuan Zhou, Lindsay Durkin, Tonya M Palermo
Sleep is an important health risk factor. In the context of pediatric chronic pain, sleep is often impaired and temporal daily associations link sleep deficiency to subsequent increased pain. It is unknown whether similar temporal relationships exist for youth with acute pain. Thus, we characterized sleep in youth with acute musculoskeletal (MSK) pain to examine daily sleep-pain associations. Participants were 67 youth (10-17 years) with acute MSK pain (<1 month duration). Youth underwent eight nights of actigraphic sleep monitoring and completed twice daily pain diaries...
April 4, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28377848/childhood-predictors-of-adolescent-behaviour-the-prospective-association-of-familial-factors-with-meeting-physical-activity-guidelines
#15
Helen Elizabeth Brown, Kirsten Corder, Andrew J Atkin, Esther M F van Sluijs
Little is known about the longitudinal association of familial socio-demographic factors, behaviours, attitudes, or home environment with meeting physical activity guidelines. Our objective was to a) describe 4-year change in the prevalence of meeting guidelines, and characteristics of participants across categories of physical activity maintenance, and b) identify familial factors in childhood that are longitudinally associated with meeting guidelines in adolescence. Data on 17 parent- and child-reported family variables and objectively measured physical activity (ActiGraph GT1M) were available from 406 children (10...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28368823/monitoring-of-gait-quality-in-patients-with-chronic-pain-of-lower-limbs
#16
Philippe Terrier, Joane Le Carre, Marie-Laure Connaissa, Bertrand Leger, Francois Luthi
Severe injuries of lower extremities often lead to chronic pain and reduced walking abilities. We postulated that measuring free-living gait can provide further information about walking ability in complement to clinical evaluations. We sought to validate a method that characterizes free gaits with a wearable sensor. Over one week, 81 healthy controls (HC) and 66 chronic lower limb pain patients (CLLPP) hospitalized for multidisciplinary rehabilitation wore a simple accelerometer (Actigraph). In the acceleration signals, steady one-minute walks detected numbered 7,835 (5,085 in CLLPP and 2,750 in HC)...
March 28, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28366349/a-novel-approach-using-actigraphy-to-quantify-the-level-of-disruption-of-sleep-by-in-home-polysomnography-the-mros-sleep-study-sleep-disruption-by-polysomnography
#17
Terri Blackwell, Misti Paudel, Susan Redline, Sonia Ancoli-Israel, Katie L Stone
BACKGROUND: The "first-night effect" of polysomnography (PSG) has been previously studied; however, the ability to quantify the sleep disruption level has been confounded with the use of PSG on all nights. We used actigraphy to quantify disruption level and examined characteristics associated with disruption. METHODS: Totally, 778 older men (76.2 ± 5.4 years) from a population-based study at six US centers underwent one night of in-home PSG. Actigraphy was performed on the PSG night and three subsequent nights...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28366329/sodium-oxybate-for-idiopathic-rem-sleep-behavior-disorder-a-report-on-two-patients
#18
Keivan Kaveh Moghadam, Fabio Pizza, Alberto Primavera, Raffaele Ferri, Giuseppe Plazzi
BACKGROUND: REM-sleep behavior disorder (RBD) therapy is based on small to medium-sized case series, as no large controlled clinical trials have been performed. The most used and widely recognized effective drugs are clonazepam and melatonin, with anecdotal reports on the potential benefit of other drug classes. METHODS: We report on two patients suffering from idiopathic RBD presenting with almost nightly complex and violent episodes, refractory to conventional drugs...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28364514/actigraphic-sleep-patterns-of-u-s-hispanics-the-hispanic-community-health-study-study-of-latinos
#19
Katherine A Dudley, Jia Weng, Daniela Sotres-Alvarez, Guido Simonelli, Elizabeth Cespedes Feliciano, Maricelle Ramirez, Alberto R Ramos, Jose S Loredo, Kathryn J Reid, Yasmin Mossavar-Rahmani, Phyllis C Zee, Diana A Chirinos, Linda C Gallo, Rui Wang, Sanjay R Patel
Study objective: To assess the extent to which objective sleep patterns vary among U.S. Hispanics/Latinos. Methods: We assessed objective sleep patterns in 2087 participants of the Hispanic Community Health Study/Study of Latinos from 6 Hispanic/Latino subgroups aged 18-64 years who underwent 7 days of wrist actigraphy. Results: The age- and sex-standardized mean (SE) sleep duration was 6.82 (0.05), 6.72 (0.07), 6.61 (0.07), 6.59 (0.06), 6...
February 1, 2017: Sleep
https://www.readbyqxmd.com/read/28364491/too-long-too-short-or-too-variable-sleep-intraindividual-variability-and-its-associations-with-perceived-sleep-quality-and-mood-in-adolescents-during-naturalistically-unconstrained-sleep
#20
Bei Bei, Rachel Manber, Nicholas B Allen, John Trinder, Joshua F Wiley
Introduction: Research has extensively examined the relationship between adolescents' mental health and average sleep duration/quality. Using rigorous methodology, this study characterized adolescents' objective sleep intraindividual variability (IIV) and examined its role on mood beyond the effects of their respective individual mean (IIM) values. Aims and Methods: One hundred forty-six community-dwelling adolescents (47.3% male) aged 16.2 ± 1.0 (M ± SD) years wore an actigraph that assessed bedtime, risetime, time-in-bed (TIB), and sleep onset latency (SOL) throughout a 15-day vacation with relatively unconstrained sleep opportunity...
February 1, 2017: Sleep
keyword
keyword
69029
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"