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https://www.readbyqxmd.com/read/29342218/cross-lagged-structural-equation-models-for-the-relationship-between-health-related-state-and-behaviours-and-body-bullying-in-adolescence-findings-from-longitudinal-study-elana
#1
Viviane S Straatmann, Ylva B Almquist, Aldair J Oliveira, Mikael Rostila, Claudia S Lopes
We investigated the stability and the directionality of being body bullied and a set of four variables- 1) Body Mass Index (BMI), 2) moderate and vigorous physical activity (MVPA), 3) television time (TV) and 4) video game/computer time (VG)-, termed in the present study as 'health-related state and behaviours (HRSB)'-across adolescence. The Adolescent Nutritional Assessment Longitudinal Study (ELANA) is a cohort study conducted among middle school students from two public and four private schools in Rio de Janeiro-Brazil...
2018: PloS One
https://www.readbyqxmd.com/read/29339790/decoding-the-dynamic-representation-of-musical-pitch-from-human-brain-activity
#2
N Sankaran, W F Thompson, S Carlile, T A Carlson
In music, the perception of pitch is governed largely by its tonal function given the preceding harmonic structure of the music. While behavioral research has advanced our understanding of the perceptual representation of musical pitch, relatively little is known about its representational structure in the brain. Using Magnetoencephalography (MEG), we recorded evoked neural responses to different tones presented within a tonal context. Multivariate Pattern Analysis (MVPA) was applied to "decode" the stimulus that listeners heard based on the underlying neural activity...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334647/time-resolved-decoding-of-planned-delayed-and-immediate-prehension-movements
#3
Giacomo Ariani, Nikolaas N Oosterhof, Angelika Lingnau
Different contexts require us either to react immediately, or to delay (or suppress) a planned movement. Previous studies that aimed at decoding movement plans typically dissociated movement preparation and execution by means of delayed-movement paradigms. Here we asked whether these results can be generalized to the planning and execution of immediate movements. To directly compare delayed, non-delayed, and suppressed reaching and grasping movements, we used a slow event-related functional magnetic resonance imaging (fMRI) design...
December 23, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29326093/face-to-face-versus-mobile-versus-blended-weight-loss-program-randomized-clinical-trial
#4
Emalie Hurkmans, Christophe Matthys, An Bogaerts, Leonie Scheys, Karlien Devloo, Jan Seghers
BACKGROUND: Conventional face-to-face weight loss and weight control programs are very labor intensive for both the patient and the provider. It is unclear to what extent conventional programs can be (partially) completed by mobile health (mHealth) apps. OBJECTIVE: The aim of this study was to compare the effectiveness of different weight loss programs using a combination of conventional and mobile programs among adults who are overweight (body mass index [BMI]>29 kg/m²)...
January 11, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29325578/effects-of-a-peer-led-walking-in-schools-intervention-the-wish-study-on-physical-activity-levels-of-adolescent-girls-a-cluster-randomised-pilot-study
#5
Angela Carlin, Marie H Murphy, Alan Nevill, Alison M Gallagher
BACKGROUND: School-based interventions may be effective at increasing levels of physical activity (PA) among adolescents; however, there is a paucity of evidence on whether walking can be successfully promoted to increase PA in this age group. This pilot study aimed to assess the effects of a 12-week school-based peer-led brisk walking programme on levels of school-time PA post intervention. METHODS: Female participants, aged 11-13 years, were recruited from six post-primary schools in Northern Ireland...
January 11, 2018: Trials
https://www.readbyqxmd.com/read/29322687/abnormal-fronto-striatal-activation-as-a-marker-of-threshold-and-subthreshold-bulimia-nervosa
#6
Marilyn Cyr, Xiao Yang, Guillermo Horga, Rachel Marsh
This study aimed to determine whether functional disturbances in fronto-striatal control circuits characterize adolescents with Bulimia Nervosa (BN) spectrum eating disorders regardless of clinical severity. FMRI was used to assess conflict-related brain activations during performance of a Simon task in two samples of adolescents with BN symptoms compared with healthy adolescents. The BN samples differed in the severity of their clinical presentation, illness duration and age. Multi-voxel pattern analyses (MVPAs) based on machine learning were used to determine whether patterns of fronto-striatal activation characterized adolescents with BN spectrum disorders regardless of clinical severity, and whether accurate classification of less symptomatic adolescents (subthreshold BN; SBN) could be achieved based on patterns of activation in adolescents who met DSM5 criteria for BN...
January 10, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29321685/physical-activity-and-diet-on-atherogenic-index-of-plasma-among-adults-in-the-united-states-mediation-considerations-by-central-adiposity
#7
Meghan K Edwards, Paul D Loprinzi
BACKGROUND/OBJECTIVES: The potential interactive or combined association of moderate-to-vigorous physical activity (MVPA) and dietary behavior with atherogenic index of plasma (AIP) has yet to be explored in a representative sample of US adults. Thus, the study aim was to examine the association of MVPA and dietary behavior on AIP, with potential mediation considerations by central adiposity. SUBJECTS/METHODS: Data from the National Health and Nutrition Examination Survey were used (N = 2701 adults aged 20-85 years)...
January 10, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29321055/trends-and-correlates-of-overweight-obesity-in-czech-adolescents-in-relation-to-family-socioeconomic-status-over-a-12-year-study-period-2002-2014
#8
Erik Sigmund, Petr Badura, Dagmar Sigmundová, Jaroslava Voráčová, Jiří Zacpal, Michal Kalman, Jan Pavelka, Jana Vokacová, Vladimír Jr Hobza, Zdenek Hamrik
BACKGROUND: This study examined a) trends in overweight/obesity, moderate-to-vigorous physical activity (MVPA), and screen time (ST) among Czech adolescents over a 12-year study period (2002-2014) in relation to family affluence (FA) and b) correlates of adolescent overweight/obesity from different FA categories. METHODS: A nationally representative sample of 18,250 adolescents (51.4% girls) aged 10.5-16.5 years was drawn from the Czech Health Behaviour in School-aged Children questionnaire-based surveys in 2002, 2006, 2010, and 2014...
January 10, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29320446/physical-activity-physical-fitness-body-composition-and-nutrition-are-associated-with-bone-status-in-university-students
#9
Gotzone Hervás, Fátima Ruiz-Litago, Jon Irazusta, Ainhoa Fernández-Atutxa, Ana Belen Fraile-Bermúdez, Idoia Zarrazquin
Understanding the modifiable factors that improve and maximize peak bone mass at an early age is necessary to design more effective intervention programs to prevent osteoporosis. To identify these modifiable factors, we analyzed the relationship of physical activity (PA), physical fitness, body composition, and dietary intake with bone stiffness index (SI), measured by quantitative ultrasonometry in young university students (18-21 years). Moderate-to-vigorous PA (MVPA) was the strongest predictor of SI (β = 0...
January 10, 2018: Nutrients
https://www.readbyqxmd.com/read/29318916/promoting-physical-activity-using-a-wearable-activity-tracker-in-college-students-a-cluster-randomized-controlled-trial
#10
Youngdeok Kim, Angela Lumpkin, Marc Lochbaum, Steven Stegemeier, Karla Kitten
This study examined the effects of utilizing a wearable activity tracker in a credit-based physical activity instructional program (PAIP) for promoting physical activity (PA) in college students. Fourteen PAIP courses in a large public university were randomly assigned into intervention (k = 7; n = 101) and control (k = 7; n = 86) groups. All courses focused on a core curriculum that covers basic exercise and behavioral science contents through lectures and activity sessions. A Misfit Flash activity tracker was provided to students in the intervention group...
January 10, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29315656/sedentary-behavior-and-physical-activity-of-young-adult-university-students
#11
Neil E Peterson, John R Sirard, Pamela A Kulbok, Mark D DeBoer, Jeanne M Erickson
Movement and non-movement behaviors include sleep, sedentary behavior (SB) and physical activity (PA). While young adults are generally perceived as healthy, the level and relationship of SB and PA in college-age students has not been greatly explored. The purpose of this study was to objectively measure the levels of SB and PA in 18-20 year-old university students, record their self-reported extracurricular activities, and explore the relationship of all these with body mass index (BMI) and waist circumference (WC)...
January 9, 2018: Research in Nursing & Health
https://www.readbyqxmd.com/read/29305869/physical-activity-and-sedentary-time-during-childcare-outdoor-play-sessions-a-systematic-review-and-meta-analysis
#12
REVIEW
Stephanie Truelove, Brianne A Bruijns, Leigh M Vanderloo, Kathleen T O'Brien, Andrew M Johnson, Patricia Tucker
Outdoor playtime has been highly correlated with moderate-to vigorous-intensity physical activity (MVPA), while also being associated with decreased sedentary time. This systematic review and meta-analysis sought to examine the physical activity levels and sedentary time of young children (2-5years) during outdoor play periods at centre-based childcare. Eight online databases were searched for peer-reviewed, English-language, original research. Two reviewers independently extracted data (study design, participants, method of measurement, and physical activity and/or sedentary time of participants)...
January 3, 2018: Preventive Medicine
https://www.readbyqxmd.com/read/29295810/physical-activity-assessment-using-an-activity-tracker-in-patients-with-rheumatoid-arthritis-and-axial-spondyloarthritis-prospective-observational-study
#13
Charlotte Jacquemin, Hervé Servy, Anna Molto, Jérémie Sellam, Violaine Foltz, Frédérique Gandjbakhch, Christophe Hudry, Stéphane Mitrovic, Bruno Fautrel, Laure Gossec
BACKGROUND: Physical activity can be tracked using mobile devices and is recommended in rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) management. The World Health Organization (WHO) recommends at least 150 min per week of moderate to vigorous physical activity (MVPA). OBJECTIVE: The objectives of this study were to assess and compare physical activity and its patterns in patients with RA and axSpA using an activity tracker and to assess the feasibility of mobile devices in this population...
January 2, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29295783/associations-between-gross-motor-skills-and-physical-activity-in-australian-toddlers
#14
Sanne L C Veldman, Rachel A Jones, Rute Santos, Eduarda Sousa-Sá, João R Pereira, Zhiguang Zhang, Anthony D Okely
OBJECTIVES: Physical activity can be promoted by high levels of gross motor skills. A systematic review found a positive relationship in children (3-18 years) but only few studies examined this in younger children. The aim of this study was to examine the association between gross motor skills and physical activity in children aged 11-29 months. DESIGN: Cross-sectional study. METHODS: This study involved 284 children from 30 childcare services in NSW, Australia (Mean age=19...
December 20, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29291534/dynamic-pattern-decoding-of-source-reconstructed-meg-or-eeg-data-perspective-of-multivariate-pattern-analysis-and-signal-leakage
#15
Bakul Gohel, Sanghyun Lim, Min-Young Kim, Hyukchan Kwon, Kiwoong Kim
Recently, an increasing number of studies have employed multivariate pattern analysis (MVPA) rather than univariate analysis for the dynamic pattern decoding of event-related responses recorded with a MEG/EEG sensor. The use of the MVPA approach for source-reconstructed MEG/EEG data is uncommon. For these data, we need to consider the source orientation information and the signal leakage among brain regions. In the present study, we evaluate the perspective of the MVPA approach in the context of source orientation information and signal leakage in source-reconstructed MEG data...
December 26, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29283467/characterizing-synchrony-patterns-across-cognitive-task-stages-of-associative-recognition-memory
#16
Oscar Portoles, Jelmer P Borst, Marieke K van Vugt
Numerous studies seek to understand the role of oscillatory synchronization in cognition. This problem is particularly challenging in the context of complex cognitive behavior, which consists of a sequence of processing steps with uncertain duration. In this study, we analyzed oscillatory connectivity measures in time windows that previous computational models had associated with a specific sequence of processing steps in an associative memory recognition task (visual encoding, familiarity, memory retrieval, decision making, and motor response)...
December 28, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29282101/association-of-physical-activity-with-lung-function-in-lung-healthy-german-adults-results-from-the-kora-ff4-study
#17
Agnes Luzak, Stefan Karrasch, Barbara Thorand, Dennis Nowak, Rolf Holle, Annette Peters, Holger Schulz
BACKGROUND: In lung disease, physical activity (PA) yields beneficial health effects, but its association with the function of healthy lungs has rarely been studied. We investigated the association of accelerometer-based PA with spirometric indices, maximal inspiratory mouth pressure (PImax) and lung diffusion capacity in lung-healthy adults. METHODS: In total, 341 apparently lung-healthy participants from the population-based KORA (Cooperative Health Research in the Region of Augsburg) FF4 cohort study (45% male, aged 48-68 years, 47% never smokers) completed lung function testing and wore ActiGraph accelerometers over a one week period at the hip...
December 28, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29277411/high-birth-weight-modifies-association-between-adolescent-physical-activity-and-cardiometabolic-health-in-women-and-not-men
#18
Thomas L Jeanne, Elizabeth R Hooker, Thuan Nguyen, Lynne C Messer, Rebecca M Sacks, Sarah B Andrea, Janne Boone-Heinonen
Recent evidence suggests that adverse prenatal development alters physiological response to physical activity, but longitudinal epidemiologic evidence is scant. This study tested the hypothesis that lower physical activity during adolescence and young adulthood is more strongly associated with later cardiovascular disease (CVD) risk and diabetes or prediabetes (DM/PDM) in women and men who were born with high or low birth weight (HBW, LBW), compared to normal birth weight (NBW). We analyzed data from the National Longitudinal Study of Adolescent to Adult Health, a cohort study of US adolescents followed into adulthood (1994-2009)...
December 22, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/29276854/the-impact-of-physical-activity-on-serum-inflammatory-markers-in-overweight-pubertal-boys-24-month-follow-up-study
#19
Liina Remmel, Vallo Tillmann, Eva Mengel, Pille Kool, Priit Purge, Evelin Lätt, Jaak Jürimäe
PURPOSE: To investigate the differences in the pattern of changes in serum inflammatory cytokines measured annually over a 24-month period, between less active and more active overweight boys. PARTICIPANTS/METHODS: In total, 25 pubertal overweight boys were divided by their moderate to vigorous physical activity (MVPA) levels into 2 groups: less active group (LAG; n = 10; MVPA < 60 min/d) and more active group (MAG; n = 15; MVPA > 60 min/d)...
December 23, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29276853/are-habitual-runners-physically-inactive
#20
Timo Rantalainen, Arto J Pesola, Matthew Quittner, Nicola D Ridgers, Daniel L Belavy
The World Health Organisation's (WHO) physical activity guidelines recommend 150min/week of moderate- to vigorous-intensity physical activity (MVPA) accumulated in 10 min bouts. To see whether people performing habitual exercise for recreation meet these guidelines, 25 long-distance runners [mean 67 km/wk], 25 joggers [mean 28 km/wk], and 20 sedentary adults wore an ActiGraph GT3X+ accelerometer for 7 days. Sedentary time and bouts were similar in runners and sedentary adults (p > 0.46). Sedentary adults performed 20 ± 16 min/day of MVPA (usual bout duration (W50%): 9...
December 25, 2017: Journal of Sports Sciences
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