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https://www.readbyqxmd.com/read/28344739/effect-of-caffeine-on-near-maximal-blood-pressure-and-blood-pressure-recovery-in-physically-active-college-aged-females
#1
Laura E Connahan, Christopher A Ott, Vaughn W Barry
The purpose of this study is to determine how caffeine affects exercise blood pressure (BP) and active and passive recovery BP after vigorous intensity exercise in physically active college-aged females. Fifteen physically active, ACSM stratified low-risk females (age (y): 23.53 ± 4.07, weight (kg): 60.34 ± 3.67, height (cm): 165.14 ± 7.20, BMI (kg/m(2)): 22.18 ± 1.55) participated in two Bruce protocol exercise tests. Before each test participants consumed 1) a placebo or 2) 3.3 mg·kg(-1) of caffeine at least one hour before exercise in a counterbalanced double-blinded fashion...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28320650/svbrdf-invariant-shape-and-reflectance-estimation-from-a-light-field-camera
#2
Ting-Chun Wang, Manmohan Chandraker, A Alyosha Efros, Ravi Ramamoorthi
Light-field cameras have recently emerged as a powerful tool for one-shot passive 3D shape capture. However, obtaining the shape of glossy objects like metals or plastics remains challenging, since standard Lambertian cues like photo-consistency cannot be easily applied. In this paper, we derive a spatially-varying (SV)BRDF-invariant theory for recovering 3D shape and reflectance from light-field cameras. Our key theoretical insight is a novel analysis of diffuse plus single-lobe SVBRDFs under a light-field setup...
March 9, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28317947/parietal-operculum-and-motor-cortex-activities-predict-motor-recovery-in-moderate-to-severe-stroke
#3
Firdaus Fabrice Hannanu, Thomas A Zeffiro, Laurent Lamalle, Olivier Heck, Félix Renard, Antoine Thuriot, Alexandre Krainik, Marc Hommel, Olivier Detante, Assia Jaillard
While motor recovery following mild stroke has been extensively studied with neuroimaging, mechanisms of recovery after moderate to severe strokes of the types that are often the focus for novel restorative therapies remain obscure. We used fMRI to: 1) characterize reorganization occurring after moderate to severe subacute stroke, 2) identify brain regions associated with motor recovery and 3) to test whether brain activity associated with passive movement measured in the subacute period could predict motor outcome six months later...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28298050/intra-articular-steroid-injection-for-frozen-shoulder
#4
Yaying Sun, Peng Zhang, Shaohua Liu, Hong Li, Jia Jiang, Shiyi Chen, Jiwu Chen
BACKGROUND: Intra-articular steroid injection is a common intervention for frozen shoulder (FS). PURPOSE: This review aimed to illustrate the effects of intra-articular steroid injection for FS. STUDY DESIGN: Systematic review and meta-analysis. METHODS: PubMed, Embase, and the Cochrane Library were searched for randomized controlled trials (RCTs) comparing intra-articular steroid injection with no injection or sham injections for FS...
October 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28294397/monitoring-chemical-and-biological-recovery-at-a-confined-aquatic-disposal-site-oslofjord-norway
#5
Amy M P Oen, Arne Pettersen, Espen Eek, Tormod Glette, Lucy Brooks, Gijs D Breedveld
The recovery of the confined aquatic disposal (CAD) facility located at Malmøykalven in Oslofjord, Norway has been assessed using an array of field measurement techniques. These methods were used prior to the disposal of dredged sediments as well as during 3 annual post-disposal monitoring campaigns. Traditional sampling to assess chemical recovery indicate an immediate reduction in total sediment concentrations and surface sediments can be characterized as having good quality. Deposition of new material indicates that the quality of depositing material at the CAD is stabile and representative of the natural background quality in the area...
March 15, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28288530/trajectories-of-health-related-quality-of-life-after-stroke-results-from-a-one-year-prospective-cohort-study
#6
Maria van Mierlo, Caroline van Heugten, Marcel W M Post, Trynke Hoekstra, Anne Visser-Meily
PURPOSE: To identify trajectories of physical and psychosocial health-related quality of life (HRQoL) from two months to one-year post stroke and to determine the factors that are associated with trajectory membership. METHOD: Multicenter prospective cohort study in which 351 stroke patients were followed up at 2, 6, and 12 months post stroke. Latent class growth mixture modeling was used to determine trajectories of physical and psychosocial HRQoL. Multinomial regression analyses were performed to predict trajectory membership...
March 13, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28288280/early-versus-delayed-motion-after-rotator-cuff-repair
#7
Darby A Houck, Matthew J Kraeutler, Hayden B Schuette, Eric C McCarty, Jonathan T Bravman
BACKGROUND: Previous meta-analyses have been conducted to compare outcomes of early versus delayed motion after rotator cuff repair. PURPOSE: To conduct a systematic review of overlapping meta-analyses comparing early versus delayed motion rehabilitation protocols after rotator cuff repair to determine which meta-analyses provide the best available evidence. STUDY DESIGN: Systematic review. METHODS: A systematic review was performed by searching PubMed and Cochrane Library databases...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28284079/label-free-identification-of-activated-t-lymphocytes-through-tridimensional-microsensors-on-chip
#8
Enrica Rollo, Enrico Tenaglia, Raphaël Genolet, Elena Bianchi, Alexandre Harari, George Coukos, Carlotta Guiducci
Label-free approaches to assess cell properties ideally suit the requirements of cell-based therapeutics, since they permit to characterize cells with minimal perturbation and manipulation, at the benefit of sample recovery and re-employment for treatment. For this reason, label-free techniques would find sensible application in adoptive T cell-based immunotherapy. In this work, we describe the label-free and single-cell detection of in vitro activated T lymphocytes in flow through an electrical impedance-based setup...
March 3, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28276500/novel-programmable-shape-memory-polystyrene-film-a-thermally-induced-beam-power-splitter
#9
Peng Li, Yu Han, Wenxin Wang, Yanju Liu, Peng Jin, Jinsong Leng
Micro/nanophotonic structures that are capable of optical wave-front shaping are implemented in optical waveguides and passive optical devices to alter the phase of the light propagating through them. The beam division directions and beam power distribution depend on the design of the micro/nanostructures. The ultimate potential of advanced micro/nanophotonic structures is limited by their structurally rigid, functional singleness and not tunable against external impact. Here, we propose a thermally induced optical beam-power splitter concept based on a shape memory polystyrene film with programmable micropatterns...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28271224/new-sampling-device-for-on-site-measurement-of-svoc-gas-phase-concentration-at-the-emitting-material-surface
#10
Mylène Ghislain, Joana Beigbeder, Hervé Plaisance, Valérie Desauziers
The gas-phase concentration at the material surface (y 0 ) is pointed out in the literature as a key parameter to describe semivolatile organic compound (SVOC) emissions from materials. This is an important input data in predictive models of SVOC behavior indoors and risk exposure assessment. However, most of the existing measurement methods consist of determining emission rates and not y 0 and none allow on-site sampling. Hence, a new passive sampler was developed. It consists of a glass cell that is simply placed on the material surface until reaching equilibrium between material and air; y 0 is then determined by solid-phase microextraction (SPME) sampling and GC-MS analysis...
March 7, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28269316/case-studies-in-poststroke-hemiplegic-patients-using-semul-a-passive-2-dof-rehabilitation-robot
#11
Ken'ichi Koyanagi, Yuya Kuwahara, Takehiro Kamida, Takuya Ozawa, Rieko Mizukami, Kiyokazu Genda, Ayaka Mori, Tatsuo Motoyoshi, Hiroyuki Masuta, Toru Oshima
Following stroke, rehabilitation exercises paired with medical treatment are important for the recovery and maintenance of upper limb function. We developed a 2-DOF passive haptic system for upper limb rehabilitation and software focusing on reaching exercises, known as the coin collecting program, which provides training and evaluation of motor function, particularly dexterity. Past studies have revealed quantitative, reproducible evaluation indices using this software. In this paper, we compared case studies of post-stroke patients with results from healthy participants, and confirmed the reliability of the evaluation indices in grading or scoring motor skills...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28263409/cryotherapy-induces-an-increase-in-muscle-stiffness
#12
Maxime Point, Gaël Guilhem, François Hug, Antoine Nordez, Alain Frey, Lilian Lacourpaille
Although cold application (i.e., cryotherapy) may be useful to treat sports injuries and to prevent muscle damage, it is unclear whether it has adverse effects on muscle mechanical properties. This study aimed to determine the effect of air-pulsed cryotherapy on muscle stiffness estimated using ultrasound shear wave elastography. Myoelectrical activity, ankle passive torque, shear modulus (an index of stiffness) and muscle temperature of the gastrocnemius medialis were measured before, during an air-pulsed cryotherapy (-30°) treatment of 4 sets of 4 minutes with 1 min recovery in between, and during a 40-min post-cryotherapy period...
March 6, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28261913/a-physiological-study-of-the-anorectal-reflex-in-patients-with-functional-anorectal-and-defecation-disorders
#13
Kumaran Thiruppathy, John Mason, Khalid Akbari, Amanda Raeburn, Anton Emmanuel
OBJECTIVE: The symptoms of fecal incontinence and constipation can arise from a variety of alterations of anorectal function. The aim of this study was to investigate components of the anorecal reflex in patients with these symptoms, to determine the functional significance of the various physiological parameters. METHODS: 21 healthy volunteers (controls), 78 incontinent and 74 constipated patients were recruited and symptom burden determined using the Wexner incontinence and constipation questionnaires...
March 6, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28257436/brain-training-improves-recovery-after-stroke-but-waiting-list-improves-equally-a-multicenter-randomized-controlled-trial-of-a-computer-based-cognitive-flexibility-training
#14
Renate M van de Ven, Jessika I V Buitenweg, Ben Schmand, Dick J Veltman, Justine A Aaronson, Tanja C W Nijboer, Suzanne J C Kruiper-Doesborgh, Coen A M van Bennekom, Sascha M C Rasquin, K Richard Ridderinkhof, Jaap M J Murre
BACKGROUND: Brain training is currently widely used in an attempt to improve cognitive functioning. Computer-based training can be performed at home and could therefore be an effective add-on to available rehabilitation programs aimed at improving cognitive functioning. Several studies have reported cognitive improvements after computer training, but most lacked proper active and passive control conditions. OBJECTIVE: Our aim was to investigate whether computer-based cognitive flexibility training improves executive functioning after stroke...
2017: PloS One
https://www.readbyqxmd.com/read/28248085/opening-opportunities-for-high-resolution-isotope-analysis-quantification-of-%C3%AE-15-nno3-and-%C3%AE-18-ono3-in-diffusive-equilibrium-in-thin-film-passive-samplers
#15
Sophie A Comer-Warner, Stefan Krause, Daren C Gooddy, Sarah A Bennett, Sarah K Wexler, Jan Kaiser
The fate of nitrate transported across groundwater-surface water interfaces has been intensively studied in recent decades. The interfaces between aquifers and rivers or lakes have been identified as biogeochemical hotspots with steep redox gradients. However, a detailed understanding of the spatial heterogeneity and potential temporal variability of these hotspots, and the consequences for nitrogen processing, is still hindered by a paucity of adequate measurement techniques. A novel methodology is presented here, using Diffusive Equilibrium in Thin-film (DET) gels as high-spatial-resolution passive-samplers of δ(15)NNO3 and δ(18)ONO3 to investigate nitrogen cycling...
March 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28229567/repeated-sprint-training-in-the-fasted-state-during-ramadan-morning-or-evening-training
#16
Asma Aloui, Tarak Driss, Hana Baklouti, Hamdi Jaafar, Omar Hammouda, Karim Chamari, Nizar Souissi
BACKGROUND: The present study assessed the optimal moment-of-day for repeated-sprint training in the fasted state during Ramadan. METHODS: Thirty amateur soccer players were randomly assigned to a morning training group (MTG, training at ~08:00 a.m., n = 10), an evening training group (ETG, training at ~06:00 p.m., n = 10), and a control group (n = 10). Training sessions, conducted on alternate days, consisted of 3 sets of 6 × 40-m shuttle sprints (2 × 20 m with 180° direction changes)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28227556/case-studies-in-poststroke-hemiplegic-patients-using-semul-a-passive-2-dof-rehabilitation-robot
#17
Ken'ichi Koyanagi, Yuya Kuwahara, Takehiro Kamida, Takuya Ozawa, Rieko Mizukami, Kiyokazu Genda, Ayaka Mori, Tatsuo Motoyoshi, Hiroyuki Masuta, Toru Oshima, Ken'ichi Koyanagi, Yuya Kuwahara, Takehiro Kamida, Takuya Ozawa, Rieko Mizukami, Kiyokazu Genda, Ayaka Mori, Tatsuo Motoyoshi, Hiroyuki Masuta, Toru Oshima, Tatsuo Motoyoshi, Toru Oshima, Rieko Mizukami, Kiyokazu Genda, Takehiro Kamida, Takuya Ozawa, Ken'ichi Koyanagi, Ayaka Mori, Yuya Kuwahara, Hiroyuki Masuta
Following stroke, rehabilitation exercises paired with medical treatment are important for the recovery and maintenance of upper limb function. We developed a 2-DOF passive haptic system for upper limb rehabilitation and software focusing on reaching exercises, known as the coin collecting program, which provides training and evaluation of motor function, particularly dexterity. Past studies have revealed quantitative, reproducible evaluation indices using this software. In this paper, we compared case studies of post-stroke patients with results from healthy participants, and confirmed the reliability of the evaluation indices in grading or scoring motor skills...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28218814/mr-elastography-measurement-of-the-effect-of-passive-warmup-prior-to-eccentric-exercise-on-thigh-muscle-mechanical-properties
#18
Paul Kennedy, Lewis J Macgregor, Eric Barnhill, Curtis L Johnson, Michael Perrins, Angus Hunter, Colin Brown, Edwin J R van Beek, Neil Roberts
PURPOSE: To investigate the effect of warmup by application of the thermal agent Deep Heat (DH) on muscle mechanical properties using magnetic resonance elastography (MRE) at 3T before and after exercise-induced muscle damage (EIMD). MATERIALS AND METHODS: Twenty male participants performed an individualized protocol designed to induce EIMD in the quadriceps. DH was applied to the thigh in 50% of the participants before exercise. MRE, T2 -weighted MRI, maximal voluntary contraction (MVC), creatine kinase (CK) concentration, and muscle soreness were measured before and after the protocol to assess EIMD effects...
February 20, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28208603/an-artificial-turf-based-surrogate-surface-collector-for-the-direct-measurement-of-atmospheric-mercury-dry-deposition
#19
Naima L Hall, Joseph Timothy Dvonch, Frank J Marsik, James A Barres, Matthew S Landis
This paper describes the development of a new artificial turf surrogate surface (ATSS) sampler for use in the measurement of mercury (Hg) dry deposition. In contrast to many existing surrogate surface designs, the ATSS utilizes a three-dimensional deposition surface that may more closely mimic the physical structure of many natural surfaces than traditional flat surrogate surface designs (water, filter, greased Mylar film). The ATSS has been designed to overcome several complicating factors that can impact the integrity of samples with other direct measurement approaches by providing a passive system which can be deployed for both short and extended periods of time (days to weeks), and is not contaminated by precipitation and/or invalidated by strong winds...
February 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28203020/-effect-of-continuous-femoral-nerve-block-combined-with-periarticular-local-infiltration-analgesia-on-early-operative-functional-recovery-after-total-knee-arthroplasty-a-randomized-double-blind-controlled-study
#20
Y Deng, T L Jiang, X X Yang, M Li, J Wang, X Y Guo
OBJECTIVE: To investigate the effects of early rehabilitation training after total knee arthroplasty surgery by continuous femoral nerve block (CFNB) with or without periarticular local infiltration analgesia (PLIA). METHODS: In this randomized, double-blind, controlled study, 100 patients under-going primary unilateral total knee arthroplasty in patients with knee osteoarthritis were enrolled. All the patients received CFNB for postoperative analgesia before combined spinal epidural anesthesia...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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