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https://www.readbyqxmd.com/read/28922063/individual-calibration-of-accelerometers-in-children-and-their-health-related-implications
#1
Lynne M Boddy, Conor Cunningham, Stuart J Fairclough, Marie H Murphy, Gavin Breslin, Lawrence Foweather, Rebecca M Dagger, Lee E F Graves, Nicola D Hopkins, Gareth Stratton
This study compared children's physical activity (PA) levels, the prevalence of children meeting current guidelines of ≥60 minutes of daily moderate to vigorous PA (MVPA), and PA-health associations using individually calibrated (IC) and empirical accelerometer cutpoints. Data from 75 (n = 32 boys) 10-12 year old children were included in this study. Clustered cardiometabolic (CM) risk, directly measured cardiorespiratory fitness (CRF), anthropometric and 7 day accelerometer data were included within analysis...
September 18, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28921977/photoinduced-bimolecular-electron-transfer-in-ionic-liquids
#2
Boning Wu, Mark Maroncelli, Edward W Castner
The present work seeks to better understand the role of solute diffusion and solvation dynamics on bimolecular electron transfer in ionic liquids (ILs). Steady-state and time-resolved measurements of the reductive fluorescence quenching of five fluorophores ("F") by six quenchers ("Q"; electron donors) are reported in acetonitrile and two ionic liquids, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide and trihexyl(tetradecyl)phosphonium bis(trifluoromethylsulfonyl)amide. Data were collected on 66 different F-Q-solvent systems, which span a 2...
September 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28919929/does-physical-activity-benefit-motor-performance-and-learning-of-upper-extremity-tasks-in-older-adults-a-systematic-review
#3
REVIEW
Lena Hübner, Claudia Voelcker-Rehage
Upper extremity motor performance declines with increasing age. However, older adults need to maintain, learn new and relearn known motor tasks. Research with young adults indicated that regular and acute physical activity might facilitate motor performance and motor learning processes. Therefore, this review aimed to examine the association between chronic physical activity and acute bouts of exercise on motor performance and motor learning in upper extremity motor tasks in older adults. Literature was searched via Cochrane library, PubMED, PsycINFO and Scopus and 27 studies met all inclusion criteria...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28919903/the-role-of-soil-solarization-in-india-how-an-unnoticed-practice-could-support-pest-control
#4
REVIEW
Harsimran K Gill, Iqbal S Aujla, Luigi De Bellis, Andrea Luvisi
Plant protection represents one of the strategies to fill the yield gap and to achieve food security, a key topic for India development. Analysis of climate risks for crops indicates that South Asia is one of the regions most exposed to the adverse impact on many plants that are relevant to inhabitants exposed to food safety risks. Furthermore, accumulation of pesticide residues in the aquatic and other ecosystems is becoming a significant threat in India. These perspectives require to develop programs of crop protection that can be feasible according to Indian rural development and pollution policy...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28919722/measuring-dispositional-optimism-in-patients-with-chronic-heart-failure-and-their-healthcare-providers-the-validity-of-the-life-orientation-test-revised
#5
Patrizia Steca, Dario Monzani, Antonia Pierobon, Giulia Avvenuti, Andrea Greco, Anna Giardini
The Life Orientation Test-Revised (LOT-R) measures dispositional optimism (DO) - an individual difference promoting physical and psychological well-being in healthy adults (HAs) as well as in patients with chronic heart failure (CHF) and healthcare providers (HPs). Controversy has arisen regarding the dimensionality of the LOT-R. Whereas DO was originally defined as a one-dimensional construct, empirical evidence suggests two correlated factors in the LOT-R. This study was the first attempt to identify the best factor structure of the LOT-R in patients with CHF and HPs and to evaluate its measurement invariance among subsamples of patients with CHF, HPs, and a normative sample of HAs...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28919528/modification-of-wool-protein-fiber-with-plasma-and-dendrimer-effects-on-dyeing-with-cochineal
#6
Toktam Sajed, Aminoddin Haji, Mohammad Khajeh Mehrizi, Majid Nasiri Boroumand
In this study, plasma treatment and a poly(propylene imine) dendrimer were employed to improve the dyeability of wool fibers with cochineal natural dye. FESEM, EDX, AFM and FTIR techniques were employed to investigate the effects of these treatments on chemical and physical properties of wool fibers. The etching of surface layer of wool fibers and increased roughness after plasma treatment was confirmed by FESEM and AFM images. EDX and FTIR analyses confirmed the creation of oxygen-containing groups and attachment of dendrimer molecules on wool fibers after plasma and dendrimer treatments respectively...
September 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28919497/body-mass-index-predicts-selected-physical-fitness-attributes-but-is-not-associated-with-performance-on-military-relevant-tasks-in-u-s-army-soldiers
#7
Joseph R Pierce, David W DeGroot, Tyson L Grier, Keith G Hauret, Bradley C Nindl, Whitfield B East, Michael S McGurk, Bruce H Jones
OBJECTIVES: Army body composition standards are based upon validated criteria; however, certain field-expedient methodologies (e.g., weight-for-height, body mass index [BMI]) may disqualify individuals from service who may otherwise excel on physical performance and military-relevant tasks. The purpose was to assess soldier physical performance and military-specific task/fitness performance stratified by BMI. DESIGN: Cross-sectional observational study. METHODS: Male (n=275) and female (n=46) soldiers performed a wide-array of physical fitness tests and military-specific tasks, including the Army physical fitness test (APFT)...
September 6, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919202/parenting-practices-and-overweight-status-of-junior-high-school-students-in-china-a-nationally-representative-study-of-19-487-students-from-112-schools
#8
Zhengqi Tan, Jungwon Min, Hong Xue, Weidong Wang, Youfa Wang
The study aimed to examine the level of parental responsiveness and demandingness for junior high students in China and its association with child weight status; assess if it differs by student socio-demographic characteristics; and to test the association between parenting and child physical activity. Nationally representative survey data collected from 19,487 students in 112 middle schools across China in 2013-2014 academic year were analyzed in 2016. Children's anthropometrics and perceptions of parenting practices were accessed by self-administered questionnaire...
September 14, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28919166/kinetic-analysis-of-oxygen-dynamics-under-a-variable-work-rate
#9
Alexander Artiga Gonzalez, Raphael Bertschinger, Fabian Brosda, Thorsten Dahmen, Patrick Thumm, Dietmar Saupe
Measurements of oxygen uptake are central to methods for the assessment of physical fitness and endurance capabilities in athletes. Two important parameters extracted from such data of incremental exercise tests are the maximal oxygen uptake and the critical power. A commonly accepted model of the dynamics of oxygen uptake during exercise at a constant work rate comprises a constant baseline oxygen uptake, an exponential fast component, and another exponential slow component for heavy and severe work rates...
September 14, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28918566/understanding-the-science-of-resistance-training-an-evolutionary-perspective
#10
William J Kraemer, Nicholas A Ratamess, Shawn D Flanagan, Jason P Shurley, Janice S Todd, Terry C Todd
The history of resistance training research began with anecdotal ideas and a slow growth of research from the late 1890s through the 1970s. The mid-1970s were a nexus point when resistance training studies evolved from just strength assessments to importance in physiological systems, physical health, and physical performance capabilities for individuals interested in physical fitness through to those seeking elite athletic performances. The pursuit of understanding program design and what mediated successful programs continues today as new findings, replication of old concepts, and new visions with the latest technologies fuel both our understanding and interest in this modality...
September 16, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28917648/challenges-of-conducting-a-prospective-clinical-trial-for-older-patients-lessons-learned-from-ncctg-n0949-alliance
#11
Nadine J McCleary, Joleen Hubbard, Michelle R Mahoney, Jeffrey A Meyerhardt, Daniel Sargent, Alan Venook, Axel Grothey
OBJECTIVES: While the risk of developing colorectal cancer increases with age, there are limited prospective data regarding best treatment in the older adult population. We launched a phase III trial to evaluate difference in treatment outcome for older adults (aged ≥70years) with advanced colorectal cancer. Here we review the challenges faced and reasons for poor accrual to N0949. MATERIALS AND METHODS: We describe the conceptualization, development and limited results of N0949, a randomized phase III study of fluoropyrimidine/bevacizumab with or without oxaliplatin (mFOLFOX7 or XELOX) as first line chemotherapy for metastatic colorectal cancer...
September 13, 2017: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/28916583/a-balance-and-proprioception-intervention-programme-to-enhance-combat-performance-in-military-personnel
#12
Shany Funk, T Jacob, D Ben-Dov, E Yanovich, O Tirosh, N Steinberg
BACKGROUND: Optimal functioning of the lower extremities under repeated movements on unstable surfaces is essential for military effectiveness. Intervention training to promote proprioceptive ability should be considered in order to limit the risk for musculoskeletal injuries. The aim of this study was to assess the effect of a proprioceptive intervention programme on static and dynamic postural balance among Israel Defense Forces combat soldiers. METHODS: Twenty-seven male soldiers, aged 18-20 years, from a physical fitness instructor's course, were randomly divided into two groups matched by age and army unit...
September 14, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28916449/bio-scaffolds-in-organ-regeneration-clinical-potential-and-current-challenges
#13
REVIEW
S Yesmin, M B Paget, H E Murray, R Downing
Cadaveric organ transplantation represents the definitive treatment option for end-stage disease but is restricted by the shortage of clinically-viable donor organs. This limitation has, in part, driven current research efforts for in vitro generation of transplantable tissue surrogates. Recent advances in organ reconstruction have been facilitated by the re-purposing of decellularized whole organs to serve as three-dimensional bio-scaffolds. Notably, studies in rodents indicate that such scaffolds retain native extracellular matrix components that provide appropriate biochemical, mechanical and physical stimuli for successful tissue/organ reconstruction...
September 12, 2017: Current Research in Translational Medicine
https://www.readbyqxmd.com/read/28916400/assessing-changes-in-the-activity-levels-of-breast-cancer-patients-during-radiation-therapy
#14
Colin E Champ, Nitin Ohri, Rainer J Klement, Matthew Cantor, Sushil Beriwal, Scott M Glaser, Ryan P Smith
BACKGROUND: Radiation therapy (RT) is often delivered after lumpectomy for women with breast cancer. A common perceived side effect of RT is fatigue, yet its exact effect on activity levels and sleep is unknown. In this study we analyzed the change in activity levels and sleep using an activity tracking device before, during, and after RT for women with early stage breast cancer and ductal carcinoma in situ who underwent adjuvant RT. PATIENTS AND METHODS: After institutional review board approval, activity levels were quantified before, during, and after RT with measurements of steps, miles walked, calories burned, and sleep metrics in 10 women fitted with activity trackers...
August 24, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28915864/physical-fitness-and-anthropometric-characteristics-among-adolescents-living-in-urban-or-rural-areas-of-kosovo
#15
Faton Tishukaj, Ismet Shalaj, Masar Gjaka, Besim Ademi, Rrustem Ahmetxhekaj, Norbert Bachl, Harald Tschan, Barbara Wessner
BACKGROUND: High physical fitness levels in childhood and adolescence are associated with positive health-related outcomes later in life. Albeit many researchers investigated rural-urban differences in physical fitness, the outcomes of these studies are inconsistent and data on Kosovo are widely missing. Thus, this study aims to examine anthropometric and physical fitness parameters in 14 to 15 year old Kosovan adolescents living in rural and urban areas. METHODS: Two schools from Pristina (mostly urban population) and two schools in the surrounding villages of the district of Deçan (mostly rural population) were selected...
September 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28915856/exercise-prescription-for-patients-with-multiple-sclerosis-potential-benefits-and-practical-recommendations
#16
Farzin Halabchi, Zahra Alizadeh, Mohammad Ali Sahraian, Maryam Abolhasani
BACKGROUND: Multiple sclerosis (MS) can result in significant mental and physical symptoms, specially muscle weakness, abnormal walking mechanics, balance problems, spasticity, fatigue, cognitive impairment and depression. Patients with MS frequently decrease physical activity due to the fear from worsening the symptoms and this can result in reconditioning. Physicians now believe that regular exercise training is a potential solution for limiting the reconditioning process and achieving an optimal level of patient activities, functions and many physical and mental symptoms without any concern about triggering the onset or exacerbation of disease symptoms or relapse...
September 16, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28914732/predictors-of-weight-related-quality-of-life-in-adolescents-who-are-overweight-or-obese
#17
Carolyn E Ievers-Landis, Oluwatomisin Olayinka, Christopher Burant, Shirley Moore
OBJECTIVE: Weight-related quality of life (WRQOL) is a type of health-related QOL that may serve as a patient-reported outcome of the potential burden of overweight. The present study uses structural equation modeling path analysis methods to examine body mass index (BMI) and other potential predictors of WRQOL components among adolescents who were overweight/obese from predominantly low-income, urban households. METHODS: Baseline data were obtained from 360 participants (10-13 year olds; 57...
September 13, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28913817/return-to-play-in-2017-and-the-role-of-shared-decision-making-in-patients-with-inherited-and-acquired-channelopathies-and-cardiomyopathies
#18
REVIEW
Kia Afshar, T Jared Bunch
Shared decision-making is based upon a physician-patient encounter in which there is adequate education using aids if needed, a mutual discussion of how to assist the patient in weighing risks and benefits, and a supportive environment that allows the patient to deliberate on the clinical decision and make their own choice. This decision-making paradigm centers on the principles of autonomy and self-determination. Physical activity is a critical part of healthy lifestyle choices that helps lower risk of cardiovascular disease or the progression of it...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#19
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912654/reduced-spanish-version-of-participation-motives-questionnaire-for-exercise-and-sport-psychometric-properties-social-sport-differences
#20
María Del Pilar Vílchez, Cristina De Francisco
Understanding the motives that influence physical activity participation is important in order to orientate physical activity promotion and increase physical activity levels of practice of the population. Although many instruments been created and validated to measure motives to perform physical activity, one of the most frequently used scales during years is the Participation of Motives Questionnaire (PMQ) by Gill et al. (1983). Unfortunately, despite being so used and translated into many languages, there is no psychometric support for some factors about due to a low internal consistency...
September 2017: Journal of Sports Science & Medicine
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