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https://www.readbyqxmd.com/read/28102971/how-is-physical-activity-measured-in-lung-cancer-a-systematic-review-of-outcome-measures-and-their-psychometric-properties
#1
REVIEW
Lara Edbrooke, Linda Denehy, Selina M Parry, Ronan Astin, Sandy Jack, Catherine L Granger
Physical activity (PA) levels are low in patients with lung cancer. Emerging evidence supports the use of interventions to increase PA in this population. We aimed to (1) identify and synthesize outcome measures which assess PA levels in patients with lung cancer and (2) to evaluate, synthesize and compare the psychometric properties of these measures. A systematic review of articles from searches was conducted of five electronic databases and personal records. Eligible studies were those which assessed PA using either performance-based or patient-reported measures...
February 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28102959/x-ray-scatter-correction-for-multi-source-interior-computed-tomography
#2
Hao Gong, Hao Yan, Xun Jia, Bin Li, Ge Wang, Guohua Cao
PURPOSE: The schemes of multi-source interior computed tomography (CT) have shown promise for ultra-fast, organ-oriented, and low-dose dynamic imaging. Besides forward scattering, x-ray cross scattering from multiple x-ray sources activated simultaneously can further degrade image quality. Here, we investigate the overall x-ray scattering artifact in a recently proposed multi-source interior CT architecture, and present two methods for scatter correction. METHODS: Compared to single-source global CT, scattering in multi-source interior CT architecture is affected by two new factors: cross scattering from simultaneously activated multiple x-ray sources and region-of-interest (ROI) oriented interior CT mode...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102890/handgrip-strength-in-old-and-very-old-adults-mood-cognition-function-and-mortality
#3
Jochanan Stessman, Yakir Rottenberg, Matan Fischer, Aliza Hammerman-Rozenberg, Jeremy M Jacobs
OBJECTIVES: To determine the trajectory of handgrip strength (HGS) from age 70 to 90 and its association with mood, cognition, functional status, and mortality. DESIGN: Prospective follow-up of an age-homogenous representative community-dwelling cohort (born 1920-21) in the Jerusalem Longitudinal Cohort Study (1990-2015). SETTING: Home-based assessment. PARTICIPANTS: Subjects aged 70 (n = 327), 78 (n = 384), 85 (n = 1187), and 90 (n = 406), examined in 1990, 1998, 2005, and 2010, respectively...
January 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28102834/basis-of-catalytic-assembly-of-the-mitotic-checkpoint-complex
#4
Alex C Faesen, Maria Thanasoula, Stefano Maffini, Claudia Breit, Franziska Müller, Suzan van Gerwen, Tanja Bange, Andrea Musacchio
Accurate genome inheritance by daughter cells requires that sister chromatids in the mother attach to microtubules emanating from opposite poles of the mitotic spindle (bi-orientation). A surveillance mechanism named the spindle assembly checkpoint (SAC) monitors the microtubule attachment process, temporarily halting sister chromatid separation and mitotic exit until completion of bi-orientation1. SAC failure results in abnormal chromosome numbers (aneuploidy), a hallmark of many tumours. The HORMA domain protein MAD2 is a subunit of the SAC effector mitotic checkpoint complex (MCC)...
January 19, 2017: Nature
https://www.readbyqxmd.com/read/28102733/plk1-polo-like-kinase-1-inhibits-mtor-complex-1-and-promotes-autophagy
#5
Stefanie Ruf, Alexander Martin Heberle, Miriam Langelaar-Makkinje, Sara Gelino, Deepti Wilkinson, Carolin Gerbeth, Jennifer Jasmin Schwarz, Birgit Holzwarth, Bettina Warscheid, Chris Meisinger, Marcel A T M van Vugt, Ralf Baumeister, Malene Hansen, Kathrin Thedieck
Mechanistic target of rapamycin complex 1 (MTORC1) and PLK1 (polo like kinase 1) are major drivers of cancer cell growth and proliferation, and inhibitors of both protein kinases are currently being investigated in clinical studies. To date, MTORC1's and PLK1's functions are mostly studied separately, and reports on their mutual crosstalk are scarce. Here, we identify PLK1 as a physical MTORC1 interactor in human cancer cells. PLK1 inhibition enhances MTORC1 activity under nutrient sufficiency and in starved cells, and PLK1 directly phosphorylates the MTORC1 component RPTOR/RAPTOR in vitro...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28102563/multiscale-modeling-methods-in-biomechanics
#6
REVIEW
Pinaki Bhattacharya, Marco Viceconti
More and more frequently, computational biomechanics deals with problems where the portion of physical reality to be modeled spans over such a large range of spatial and temporal dimensions, that it is impossible to represent it as a single space-time continuum. We are forced to consider multiple space-time continua, each representing the phenomenon of interest at a characteristic space-time scale. Multiscale models describe a complex process across multiple scales, and account for how quantities transform as we move from one scale to another...
January 19, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28102434/low-muscle-mass-and-risk-of-type-2-diabetes-in-middle-aged-and-older-adults-findings-from-the-koges
#7
Jang Won Son, Seong Su Lee, Sung Rae Kim, Soon Jib Yoo, Bong Yun Cha, Ho Young Son, Nam H Cho
AIMS/HYPOTHESIS: Asians have a propensity to develop type 2 diabetes with a lower BMI than Western populations. This discrepancy may be due to differences in body fat and muscle mass for a given BMI. However, unlike adiposity, it is unclear whether muscle mass affects the risk of type 2 diabetes in Asian populations. METHODS: We conducted a 2-yearly prospective assessment of 6895 participants who were free of diabetes at the baseline examination as part of the Korean Genome Epidemiology Study...
January 19, 2017: Diabetologia
https://www.readbyqxmd.com/read/28102416/phase-separation-in-driven-granular-gases-exploring-the-elusive-character-of-nonequilibrium-steady-states
#8
S Herminghaus, M G Mazza
The emergence of patterns and phase separation in many-body systems far from thermal equilibrium is discussed using the example of driven granular gases. It is shown that phase separation follows a similar mechanism as in the systems of active Brownian particles. Depending on the quantities chosen for observation, it may or may not be easy to find functionals analogous to the free energy in equilibrium statistical physics. We argue that although such functionals can always be derived from the dynamics, it is of only limited value for predicting relevant aspects of the nonequilibrium steady state of the system...
January 19, 2017: Soft Matter
https://www.readbyqxmd.com/read/28102411/defect-driven-shapes-in-nematic-droplets-analogies-with-cell-division
#9
Marco Leoni, Oksana V Manyuhina, Mark J Bowick, M Cristina Marchetti
Building on the striking similarity between the structure of the spindle during mitosis in living cells and nematic textures in confined liquid crystals, we use a continuum model of two-dimensional nematic liquid crystal droplets to examine the physical aspects of cell division. The model investigates the interplay between bulk elasticity of the microtubule assembly, described as a nematic liquid crystal, and surface elasticity of the cell cortex, modeled as a bounding flexible membrane, in controlling cell shape and division...
January 19, 2017: Soft Matter
https://www.readbyqxmd.com/read/28102172/dr-j%C3%A3-zef-aleksiewicz-activity-in-support-of-the-development-of-orthopedics-and-rehabilitation-in-iwonicz-zdr%C3%A3-j-1921-1957
#10
Sławomir Jandziś, Stanisław Zaborniak
Based on source materials in the possession of Józef Aleksiewicz family (typescripts, manuscripts, photographs, other documents) and articles published in professional medical journals and newspapers, the authors present the contribution of Dr. J. Aleksiewicz to the development of orthopedics and rehabilitation in Iwonicz-Zdrój. In May 1921, he was appointed Surgeon General of the Spa Commission in Iwonicz-Zdrój. After holding several scholarly trips abroad in 1925 to sanatoriums treating cases of osteo-articular tuberculosis, he commenced the construction of "Sanato", a modern sanatorium...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102167/assessment-and-comparison-of-the-efficacy-of-rehabilitation-conducted-at-a-sanatorium-and-in-an-outpatient-facility-in-patients-with-low-back-pain-pilot-study
#11
Jakub Szewczyk
BACKGROUND: Low back pain is nowadays believed to be one of the most serious and common health problems and is even often classified as a disease of civilisation. Prevention and treatment of such conditions is very important, particularly taking into consideration the fact that they are increasingly common in young people. Low back pain is effectively prevented and treated with rehabilitation. The aim of this paper was to assess and compare rehabilitation procedures performed in patients with low back pain in the sanatorium setting and on an outpatient basis...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102100/a-systematic-review-the-influence-of-real-time-feedback-on-wheelchair-propulsion-biomechanics
#12
Andrew Symonds, Giulia Barbareschi, Stephen Taylor, Catherine Holloway
BACKGROUND: Clinical guidelines recommend that, in order to minimize upper limb injury risk, wheelchair users adopt a semi-circular pattern with a slow cadence and a large push arc. OBJECTIVES: To examine whether real time feedback can be used to influence manual wheelchair propulsion biomechanics. REVIEW METHODS: Clinical trials and case series comparing the use of real time feedback against no feedback were included. A general review was performed and methodological quality assessed by two independent practitioners using the Downs and Black checklist...
January 19, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28101983/working-to-define-professionalism-in-pediatric-anesthesiology-a-qualitative-study-of-domains-of-the-expert-pediatric-anesthesiologist-as-valued-by-interdisciplinary-stakeholders
#13
Justin L Lockman, Alan Jay Schwartz, Peter F Cronholm
BACKGROUND: Unprofessional behavior is a significant problem throughout graduate medical education programs and medical centers. Some authors have suggested that professionalism curricula should be focused toward faculty, not trainees, to interrupt the modeling of unprofessionalism. Developing such curricula requires a needs assessment and is challenging given data indicating that the definition of professionalism varies based on medical specialty. Thus, a specialty-specific definition of professionalism is needed as a first step in any curriculum development...
February 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28101566/effect-of-physical-activity-in-the-first-five-days-after-cardiac-surgery
#14
Sean F Mungovan, Preetraj Singh, Gregory C Gass, Neil A Smart, Andrew D Hirschhorn
OBJECTIVES: To quantify physiotherapist-supervised and independent physical activity undertaken from the first to the fifth day after cardiac surgery (POD1 to POD5), and to relate the amount of physical activity undertaken with hospital stay and postoperative physiological functional capacity on POD6. METHODS: Physiotherapist-supervised and independent physical activity were monitored in 83 adult patients undergoing cardiac surgery, using a bi-axial accelerometer and skin sensors that measured, galvanic skin response and body temperature...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101564/changes-in-body-composition-after-spasticity-treatment-with-intrathecal-baclofen
#15
Olle Skogberg, Kersti Samuelsson, Per Ertzgaard, Richard Levi
OBJECTIVE: To assess changes in body composition, body weight and resting metabolic rate in patients who received intrathecal baclofen therapy for spasticity. DESIGN: Prospective, longitudinal, quasi-experimental, with a pre/post design. PATIENTS: Twelve patients with spasticity, fulfilling study criteria, and due for pump implantation for intrathecal baclofen therapy, completed the study. METHODS: Data were obtained before, 6 months and 12 months after commencement of intrathecal baclofen therapy as regards body composition (by skinfold calliper), body weight, and resting metabolic rate (by resting oxygen consumption)...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101444/accelerometer-data-treatment-for-adolescents-fitting-a-piece-of-the-puzzle
#16
Melody Smith, Steve Taylor, Leon Iusitini, Tom Stewart, Fa'asisila Savila, El-Shadan Tautolo, Lindsay Plank, Shabnam Jalili-Moghaddam, Janis Paterson, Elaine Rush
This study aimed to assess the differences in participant retention and associations between physical activity and key variables when a range of accelerometer data inclusion criteria are employed. Data were drawn from 204 adolescents of Pacific Island heritage (survey, body composition, 7-day accelerometry) and their parents (date of birth, socioeconomic status) between October 2014 and February 2016 in Auckland, New Zealand. Data wear time criteria for inclusion were as follows: A) > = 10 h/weekday or > = 8 h weekend day, > = 5 days (at least one weekend day); B) > = 10 h/weekday or > = 8 h weekend day, > = 4 days; C) > = 7 h/day, > = 3 days; D) > = 10 h/day, > = 1 day...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28101443/national-physical-activity-surveillance-users-of-wearable-activity-monitors-as-a-potential-data-source
#17
John D Omura, Susan A Carlson, Prabasaj Paul, Kathleen B Watson, Janet E Fulton
The objective of this study was to assess usage patterns of wearable activity monitors among US adults and how user characteristics might influence physical activity estimates from this type of sample. We analyzed data on 3367 respondents to the 2015 HealthStyles survey, an annual consumer mail panel survey conducted on a nationwide sample. Approximately 1 in 8 respondents (12.5%) reported currently using a wearable activity monitor. Current use varied by sex, age, and education level. Use increased with physical activity level from 4...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28101399/stimulus-evoked-outer-segment-changes-occur-before-the-hyperpolarization-of-retinal-photoreceptors
#18
Yiming Lu, Benquan Wang, David R Pepperberg, Xincheng Yao
Transient retinal phototropism (TRP) has been predominantly observed in rod photoreceptors activated by oblique visible light stimulation. Dynamic confocal microscopy and optical coherence tomography (OCT) have revealed rod outer segment (ROS) movement as the physical source of TRP. However, the physiological source of ROS movement is still not well understood. In this study, concurrent near-infrared imaging of TRP and electroretinogram (ERG) measurement of retinal electrophysiology revealed that ROS movement occurs before the onset of the ERG a-wave, which is known to reflect the hyperpolarization of retinal photoreceptors...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101366/weighting-criteria-and-prioritizing-of-heat-stress-indices-in-surface-mining-using-a-delphi-technique-and-fuzzy-ahp-topsis-method
#19
Mehdi Asghari, Parvin Nassiri, Mohammad Reza Monazzam, Farideh Golbabaei, Hossein Arabalibeik, Aliakbar Shamsipour, Armin Allahverdy
BACKGROUND: Heat stress as a physical harmful agent can increase the risk of health and safety problems in different workplaces such as mining. Although there are different indices to assess the heat stress imposed on workers, choosing the best index for a specific workplace is so important. Since various criteria affect an index applicability, extracting the most effective ones and determining their weights help to prioritize the existing indices and select the optimal index. METHODS: In order to achieve this aim, present study compared some heat stress indices using effective methods...
2017: Journal of Environmental Health Science & Engineering
https://www.readbyqxmd.com/read/28101329/association-between-sports-type-and-overuse-injuries-of-extremities-in-adults-a-systematic-review
#20
REVIEW
Charlène Chéron, Christine Le Scanff, Charlotte Leboeuf-Yde
BACKGROUND: Sports injuries are often described as overuse or traumatic. Little is known about the frequency of overuse injuries and, in particular, if they vary between different types of sporting activities. PURPOSE: To identify any differences between sports in relation to diagnoses of overuse injuries of the extremities (OIE) and anatomical areas most likely to be injured in adults and to compare these findings with those reported in youngsters, as identified in a previous review...
2017: Chiropractic & Manual Therapies
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