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https://www.readbyqxmd.com/read/27914468/intra-individual-variability-in-day-to-day-and-month-to-month-measurements-of-physical-activity-and-sedentary-behaviour-at-work-and-in-leisure-time-among-danish-adults
#1
E S L Pedersen, I H Danquah, C B Petersen, J S Tolstrup
BACKGROUND: Accelerometers can obtain precise measurements of movements during the day. However, the individual activity pattern varies from day-to-day and there is limited evidence on measurement days needed to obtain sufficient reliability. The aim of this study was to examine variability in accelerometer derived data on sedentary behaviour and physical activity at work and in leisure-time during week days among Danish office employees. METHODS: We included control participants (n = 135) from the Take a Stand! Intervention; a cluster randomized controlled trial conducted in 19 offices...
December 3, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27909358/sensewearmini-and-actigraph-gt3x-accelerometer-classification-of-observed-sedentary-and-light-intensity-physical-activities-in-a-laboratory-setting
#2
Lynne M Feehan, Charles H Goldsmith, April Y F Leung, Linda C Li
Purpose: To compare the ability of SenseWear Mini (SWm) and Actigraph GT3X (AG3) accelerometers to differentiate between healthy adults' observed sedentary and light activities in a laboratory setting. Methods: The 22 participants (15 women, 7 men), ages 19 to 72 years, wore SWm and AG3 monitors and performed five sedentary and four light activities for 5 minutes each while observed in a laboratory setting. Performance was examined through comparisons of accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios...
2016: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/27905148/simultaneous-validation-of-five-activity-monitors-for-use-in-adult-populations
#3
C Powell, B P Carson, K P Dowd, A E Donnelly
Numerous cut-points exist to measure physical activity by accelerometry. The ability to compare accelerometer findings from different devices from different locations may be advantageous to researchers. This study aimed to develop and validate cut-points for 1.5, 3, and 6 METs in five activity monitors simultaneously. Fifty-six participants (mean age=39.9 [±11.5] years) performed six activities while wearing a CosMED K4b(2) and five activity monitors: activPAL3 Micro, activPAL, ActiGraph GT1M, ActiGraph wGT3X-BT, and GENEActiv...
December 1, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27900168/the-most-physically-active-danish-adolescents-are-at-increased-risk-for-developing-spinal-pain-a-two-year-prospective-cohort-study
#4
Ellen Aartun, Eleanor Boyle, Jan Hartvigsen, Paulo H Ferreira, Christopher G Maher, Manuela L Ferreira, Lise Hestbaek
BACKGROUND: The overall aim of this study was to determine to what extent objectively measured physical activity in a school-based sample aged 11-13 years predicted incident cases of spinal pain (neck pain, mid back pain or low back pain) over the following 2 years. METHODS: Data were collected at baseline (2010) and 2 years later in a school-based prospective cohort study. Spinal pain was assessed via an e-survey that the participants completed during school time...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27896433/continuous-daily-assessment-of-multiple-sclerosis-disability-using-remote-step-count-monitoring
#5
V J Block, A Lizée, E Crabtree-Hartman, C J Bevan, J S Graves, R Bove, A J Green, B Nourbakhsh, M Tremblay, P-A Gourraud, M Y Ng, M J Pletcher, J E Olgin, G M Marcus, D D Allen, B A C Cree, J M Gelfand
Disability measures in multiple sclerosis (MS) rely heavily on ambulatory function, and current metrics fail to capture potentially important variability in walking behavior. We sought to determine whether remote step count monitoring using a consumer-friendly accelerometer (Fitbit Flex) can enhance MS disability assessment. 99 adults with relapsing or progressive MS able to walk ≥2-min were prospectively recruited. At 4 weeks, study retention was 97% and median Fitbit use was 97% of days. Substudy validation resulted in high interclass correlations between Fitbit, ActiGraph and manual step count tally during a 2-minute walk test, and between Fitbit and ActiGraph (ICC = 0...
November 28, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27896298/applying-latent-class-assignments-for-accelerometry-data-to-external-populations-data-from-the-national-health-and-nutrition-examination-survey-2003-2006
#6
Kelly R Evenson, Fang Wen, Annie Green Howard, Amy H Herring
Latent class analysis can identify unmeasured mutually exclusive categories (class membership) among participants for either observed categorical or continuous variables. More recently, latent class analysis has been applied to accelerometry to better understand the day-to-day patterns of physical activity and sedentary behavior. Typically, the class assignments are only relevant to the study for which they were derived and not made available for others to use. Using one-week accelerometry (ActiGraph #AM7164) data collected from the National Health and Nutrition Examination Survey during 2003-2006, latent classes of physical activity and sedentary behavior were derived separately for youths 6-17 years and adults >=18 years...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27893785/are-older-adults-physically-active-enough-a-matter-of-assessment-method-the-generation-100-study
#7
Nils Petter Aspvik, Hallgeir Viken, Nina Zisko, Jan Erik Ingebrigtsen, Ulrik Wisløff, Dorthe Stensvold
INTRODUCTION: Physical activity (PA) is beneficial for general health. As a result, adults around the world are recommended to undertake regular PA of either absolute or relative intensity. Traditionally, adherence to PA recommendation is assessed by accelerometers that record absolute intensity thresholds. Since ageing often results in a decrease in cardiorespiratory fitness (CRF), older adults (aged > 65 years) might be more susceptible to not meeting the PA recommendation when measured in absolute terms...
2016: PloS One
https://www.readbyqxmd.com/read/27890490/fragmentation-of-daily-rhythms-associates-with-obesity-and-cardiorespiratory-fitness-in-adolescents-the-helena-study
#8
Marta Garaulet, Antonio Martinez-Nicolas, Jonatan R Ruiz, Kenn Konstabel, Idoia Labayen, Marcela González-Gross, Ascensión Marcos, Dénes Molnar, Kurt Widhalm, Jose Antonio Casajús, Stefaan De Henauw, Anthony Kafatos, Christina Breidenassel, Michael Sjöström, Manuel J Castillo, Luis A Moreno, Juan A Madrid, Francisco B Ortega
BACKGROUND & AIMS: Chronobiology studies periodic changes in living organisms and it has been proposed as a promising approach to investigate obesity. We analyze the association of the characteristics of the rest-activity rhythms with obesity, cardiorespiratory fitness and metabolic risk in adolescents from nine European countries. METHODS: 1044 adolescents (12.5-17.5 y) were studied. Circadian health was evaluated by actigraphy with accelerometers (Actigraph GT1M)...
November 5, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27888171/clinical-relevance-of-the-first-domomedicine-platform-securing-multidrug-chronotherapy-delivery-in-metastatic-cancer-patients-at-home-the-incasa-european-project
#9
Pasquale F Innominato, Sandra Komarzynski, Ali Mohammad-Djafari, Alexandre Arbaud, Ayhan Ulusakarya, Mohamed Bouchahda, Mazen Haydar, Rachel Bossevot-Desmaris, Virginie Plessis, Magali Mocquery, Davina Bouchoucha, Mehran Afshar, Jacques Beau, Abdoulaye Karaboué, Jean-François Morère, Joanna Fursse, Jordi Rovira Simon, Francis Levi
BACKGROUND: Telehealth solutions can improve the safety of ambulatory chemotherapy, contributing to the maintenance of patients at their home, hence improving their well-being, all the while reducing health care costs. There is, however, need for a practicable multilevel monitoring solution, encompassing relevant outputs involved in the pathophysiology of chemotherapy-induced toxicity. Domomedicine embraces the delivery of complex care and medical procedures at the patient's home based on modern technologies, and thus it offers an integrated approach for increasing the safety of cancer patients on chemotherapy...
November 25, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27887786/validity-and-reliability-of-fitbit-activity-monitors-compared-to-actigraph-gt3x-with-female-adults-in-a-free-living-environment
#10
Ryan E R Reid, Jessica A Insogna, Tamara E Carver, Andrea M Comptour, Nicole A Bewski, Cristina Sciortino, Ross E Andersen
OBJECTIVES: Inexpensive activity monitors have recently gained popularity with the general public. Researchers have evaluated these consumer-based monitors in laboratory-conditions. Given the current wide-spread consumer use of these devices, it is important to ensure users are attaining accurate information compared to previously validated measures. This study investigates the accuracy of Fitbit One and Flex activity monitors in measuring steps, sedentary time, and time spent in light, moderate, and vigorous intensity activities with ActiGraph GT3X+ with female adults in free-living conditions...
November 16, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27887769/activity-and-sedentary-time-10-years-after-a-successful-lifestyle-intervention-the-diabetes-prevention-program
#11
Bonny Rockette-Wagner, Kristi L Storti, Dana Dabelea, Sharon Edelstein, Hermes Florez, Paul W Franks, Maria G Montez, Jeremy Pomeroy, Andrea M Kriska
INTRODUCTION: This study aims to determine if evidence exists for a lasting effect of the Diabetes Prevention Program (DPP) lifestyle intervention on activity levels by comparing objectively collected activity data between the DPP Outcome Study (DPPOS) cohort and adults from the National Health and Nutrition Examination Survey (NHANES; 2003-2006). METHODS: Average minutes/day of light and moderate to vigorous physical activity (MVPA) and sedentary behavior from ActiGraph accelerometers (collected 2010-2012) were examined (2013-2014) for comparable DPPOS and NHANES subgroups by age, sex, and diabetes status...
November 16, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27883169/association-between-continuous-wearable-activity-monitoring-and-self-reported-functioning-in-assisted-living-facility-and-nursing-home-residents
#12
J Merilahti, I Korhonen
BACKGROUND: Physical functioning is a key factor in independent living, and its preclinical state assessment and monitoring during the subject's normal life would be beneficial. OBJECTIVES: The aim of the study is to analyse associations between ambulatory measured physical activity behaviour and sleep patterns (wrist actigraphy) and self-reported difficulties in performing activities of daily living. Participants, setting and design: 36 residents in assisted living facilities and nursing homes (average age=80...
2016: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/27882777/real-time-visual-activity-feedback-for-physical-activity-improvement-in-breast-and-colon-cancer-patients
#13
Lars Gabrys, Stefan Sperzel, Marcus Bernhoerster, Winfried Banzer, Lutz Vogt
The study aims to evaluate the effects and feasibility of a biofeedback device for physical activity (PA) improvement in breast and colon cancer patients. Daily PA of 19 cancer patients was measured by accelerometry (ActiGraph, GT1 M). Additionally, patients wore a motion sensor with real-time visual activity feedback (ActiSmile). Counts per minutes (cpm) and moderate to vigorous physical activity (MVPA) were calculated and patients' activity data were compared to PA of 20 age-matched healthy controls. Baseline PA of patients was lower compared to controls...
November 24, 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27878845/evaluation-of-raw-acceleration-sedentary-thresholds-in-children-and-adults
#14
Maria Hildebrand, Bjørge H Hansen, Vincent T van Hees, Ulf Ekelund
The aim was to develop sedentary (sitting/lying) thresholds from hip and wrist worn raw tri-axial acceleration data from the ActiGraph and GENEActiv, and to examine the agreement between free-living time spent below these thresholds with sedentary time estimated by the activPAL. Sixty children and adults wore an ActiGraph and GENEActiv on the hip and wrist while performing six structured activities, before wearing the monitors, in addition to an activPAL, for 24 h. Receiver operating characteristic (ROC) curves were used to determine sedentary thresholds based on activities in the laboratory...
November 22, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27878789/regional-sociocultural-differences-as-important-correlate-of-physical-activity-and-sedentary-behaviour-in-swiss-preschool-children
#15
Claudia S Leeger-Aschmann, Einat A Schmutz, Thomas Radtke, Tanja H Kakebeeke, Annina E Zysset, Nadine Messerli-Bürgy, Kerstin Stülb, Amar Arhab, Andrea H Meyer, Simone Munsch, Oskar G Jenni, Jardena J Puder, Susi Kriemler
QUESTION: Regional differences in physical activity in school-aged children and adults even within one country with the same political and health care system have been observed and could not be explained by sociodemographic or individual variables. We analysed whether such differences were already present in preschool children. METHODS: Swiss children from 84 childcare centres in five cantons (Aargau, Bern, Fribourg, Vaud, Zurich) comprising about 50% of the population of the country participated...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27866822/correlates-of-physical-activity-among-young-children-with-moderate-acute-malnutrition
#16
Charles W Yaméogo, Bernardette Cichon, Christian Fabiansen, Ann-Sophie Iuel-Brockdorf, Susan Shepherd, Suzanne Filteau, Alfred S Traoré, Vibeke B Christensen, Kim F Michaelsen, Soren Brage, Henrik Friis, Daniel Faurholt-Jepsen
OBJECTIVE: To assess the levels of physical activity among young children with moderate acute malnutrition and to identify clinical, biochemical, anthropometric, and sociodemographic correlates of physical activity. STUDY DESIGN: In a cross-sectional study, 1609 children aged 6-23 months wore a triaxial accelerometer (ActiGraph GT3x+; ActiGraph, Pensacola, Florida) for 6 consecutive days, from which total physical activity were determined. Data on morbidity were collected based by history and physical examination, and serum C-reactive protein and α1-acid glycoprotein were measured...
November 18, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27862514/patient-room-lighting-influences-on-sleep-appraisal-and-mood-in-hospitalized-people
#17
Marina C Giménez, Leonie M Geerdinck, Mathijs Versteylen, Pieter Leffers, Gaby J B M Meekes, Hannelore Herremans, Boris de Ruyter, Jan Willem Bikker, Petra M J C Kuijpers, Luc J M Schlangen
Irregular 24 h light/dark cycles with night-time light exposure and a low amplitude are disruptive for sleep, mood and circadian rhythms. Nevertheless such lighting conditions are quite common in medical care facilities. A controlled clinical trial among 196 cardiology ward patients (mean age 66.5 ± 13.1 years SD) investigated how a patient room lighting intervention affects sleep, appraisal and mood across hospitalization. Patients were either assigned to a standardly-lit room or to a room with an interventional lighting system offering a dynamic 24 h light/dark cycle with low nocturnal light exposure and 2 h of bright light (1750 lux) during daytime...
November 10, 2016: Journal of Sleep Research
https://www.readbyqxmd.com/read/27859005/within-family-relations-in-objective-sleep-duration-quality-and-schedule
#18
Chrystyna D Kouros, Mona El-Sheikh
The current study examined within-family relations between mothers', fathers', and children's objectively assessed sleep. Participants were 163 children (Mage  = 10.45 years; SD = 0.62) and their parents. For 7 nights, families wore actigraphs to assess sleep duration (minutes), quality (efficiency, long wake episode, total wake minutes), and schedule (wake time). A sleep log assessed bedtime. Multilevel models indicated that children's sleep minutes, sleep efficiency, wake minutes, and wake time were associated with fluctuations in their mothers', but not fathers', sleep that same night...
November 10, 2016: Child Development
https://www.readbyqxmd.com/read/27855757/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
#19
Bei Bei, Rachel Manber, Nicholas B Allen, John Trinder, Joshua F Wiley
STUDY OBJECTIVES: 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 mean sleep parameters. METHODS: 146 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...
November 14, 2016: Sleep
https://www.readbyqxmd.com/read/27855733/actigraphic-sleep-patterns-of-u-s-hispanics-the-hispanic-community-health-study-study-of-latinos
#20
Katherine A Dudley, Jia Weng, Daniela Sotres-Alvarez, Guido Simonelli, Elizabeth Cespedes, 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 2,087 participants of the Hispanic Community Health Study/Study of Latinos from six 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...
October 28, 2016: Sleep
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