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Physical performance

Clizia Guccione, Maria Camilla Bergonzi, Khaled M Awada, Vieri Piazzini, Anna Rita Bilia
The aim of this study was the development and characterization of lipid nanocarriers using food grade components for oral delivery of Serenoa repens CO2 extract, namely microemulsions (MEs) and self-microemulsifying drug delivery systems (SMEDDSs) to improve the oral absorption. A commercial blend (CB) containing 320 of S. repens CO2 extract plus the aqueous soluble extracts of nettle root and pineapple stem was formulated in two MEs and two SMEDDSs. The optimized ME loaded with the CB (CBM2) had a very low content of water (only 17...
March 15, 2018: Planta Medica
Wei Qian, Xiaodong Hu, Weifeng He, Rixing Zhan, Menglong Liu, Daijun Zhou, Yong Huang, Xiaohong Hu, Zhanhua Wang, Guoxia Fei, Jun Wu, Malcolm Xing, Hesheng Xia, Gaoxing Luo
Toward fabricating a novel multifunctional wound dressing material, we incorporated a series of contents of reduced graphene oxide (rGO) sheets into polydimethylsiloxane (PDMS) matrix to prepare the rGO-PDMS composite membrane and be used for wound dressing. The pore structure, dispersion of rGO, physical properties, water vapor transmission rate (WVTR), cytotoxicity and antibacterial activity were studied. Finally, the effect of the rGO-PDMS composite membrane on wound healing was investigated on a murine full-thickness skin wound model...
March 12, 2018: Colloids and Surfaces. B, Biointerfaces
Karsten Königstein, Denis Infanger, Christopher Klenk, Timo Hinrichs, Anja Rossmeissl, Sandra Baumann, Benjamin Hafner, Henner Hanssen, Arno Schmidt-Trucksäss
BACKGROUND AND AIMS: Higher cardiorespiratory fitness is associated with lower pulse wave velocity and arterial stiffness in normal weight individuals, and this has not been examined in obese individuals. It is unclear whether an altered body composition acts as a modifier of the association between cardiorespiratory fitness and arterial stiffness. We examined the association between peak oxygen uptake and brachial-ankle pulse wave velocity and analysed whether body composition attenuates this association in obese middle-aged individuals...
March 8, 2018: Atherosclerosis
Krzysztof Karpowicz, Katarzyna Krych, Małgorzata Karpowicz, Witold Nowak, Piotr Gronek
The map of candidate genes that can potentially affect physical fitness becomes larger every year, and they are associated with such aspects as respiratory and cardiovascular stability; body build and composition - especially muscle mass and strength; carbohydrate and lipid metabolism; response to training; and exercise intolerance.The aim of this study was to analyze the relationship between the CA repeat polymorphism of the P1 promoter of the IGF1 gene and the structure of motor skills in the two groups of Polish young athletes in 2011-2013...
March 15, 2018: Acta Biochimica Polonica
Bernardo Costa-Pinel, Santiago Mestre-Miravet, Francisco Barrio-Torrell, Joan-Josep Cabré-Vila, Xavier Cos-Claramunt, Sofía Aguilar-Sanz, Claustre Solé-Brichs, Conxa Castell-Abat, Victoria Arija-Val, Jaana Lindström
BACKGROUND: The DE-PLAN-CAT project (Diabetes in Europe-Prevention using lifestyle, physical activity and nutritional intervention-Catalonia) has shown that an intensive lifestyle intervention is feasible in the primary care setting and substantially reduces the incidence of diabetes among high-risk Mediterranean participants. The DP-TRANSFERS project (Diabetes Prevention-Transferring findings from European research to society) is a large-scale national programme aimed at implementing this intervention in primary care centres whenever feasible...
2018: PloS One
Olivier Beauchet, Cyrille P Launay, Harmehr Sekhon, Jennifer Gautier, Julia Chabot, Elise J Levinoff, Gilles Allali
BACKGROUND: Assessment of changes in higher levels of gait control with aging is important to better understand age-related gait instability, with the perspective to improve the screening of individuals at risk for falls. The comparison between actual Timed Up and Go test (aTUG) and its imagined version (iTUG) is a simple clinical way to assess age-related changes in gait control. The modulations of iTUG performances by body positions and motor imagery (MI) strategies with normal aging have not been evaluated yet...
2018: PloS One
Nathalie M Berninger, Gill A Ten Hoor, Guy Plasqui
Sedentary behavior (SB) has detrimental consequences and cannot be compensated for through moderate-to-vigorous physical activity (PA). In order to understand and mitigate SB, tools for measuring and monitoring SB are essential. While current direct-to-customer wearables focus on PA, the VitaBit validated in this study was developed to focus on SB. It was tested in a laboratory and in a free-living condition, comparing it to direct observation and to a current best-practice device, the ActiGraph, on a minute-by-minute basis...
March 15, 2018: Sensors
Valentina Camomilla, Elena Bergamini, Silvia Fantozzi, Giuseppe Vannozzi
Recent technological developments have led to the production of inexpensive, non-invasive, miniature magneto-inertial sensors, ideal for obtaining sport performance measures during training or competition. This systematic review evaluates current evidence and the future potential of their use in sport performance evaluation. Articles published in English (April 2017) were searched in Web-of-Science, Scopus, Pubmed, and Sport-Discus databases. A keyword search of titles, abstracts and keywords which included studies using accelerometers, gyroscopes and/or magnetometers to analyse sport motor-tasks performed by athletes (excluding risk of injury, physical activity, and energy expenditure) resulted in 2040 papers...
March 15, 2018: Sensors
Chi-Yuan Lee, Shih-Chun Li, Chia-Hung Chen, Yen-Ting Huang, Yu-Syuan Wang
Looking for alternative energy sources has been an inevitable trend since the oil crisis, and close attentioned has been paid to hydrogen energy. The proton exchange membrane (PEM) water electrolyzer is characterized by high energy efficiency, high yield, simple system and low operating temperature. The electrolyzer generates hydrogen from water free of any carbon sources (provided the electrons come from renewable sources such as solar and wind), so it is very clean and completely satisfies the environmental requirement...
March 15, 2018: Sensors
Katsuyuki Taguchi, Toshihide Itoh, Matthew K Fuld, Eric Fournie, Okkyun Lee, Kyo Noguchi
OBJECTIVES: A novel imaging technique ("X-map") has been developed to identify acute ischemic lesions for stroke patients using non-contrast-enhanced dual-energy computed tomography (NE-DE-CT). Using the 3-material decomposition technique, the original X-map ("X-map 1.0") eliminates fat and bone from the images, suppresses the gray matter (GM)-white matter (WM) tissue contrast, and makes signals of edema induced by severe ischemia easier to detect. The aim of this study was to address the following 2 problems with the X-map 1...
March 14, 2018: Investigative Radiology
Daniel L Riddle, Mark P Jensen, Dennis Ang, James Slover, Robert Perera, Levent Dumenci
BACKGROUND: Pain-coping strategies and appraisals are responses to the pain experience. They can influence patient-reported and physical performance outcome measures in a variety of disorders, but the associations between a comprehensive profile of pain-coping responses and preoperative pain/function and physical performance measures in patients scheduled for knee arthroplasty have not been examined. Patients with moderate to high pain catastrophizing (a pain appraisal approach associated with an exaggerated focus on the threat value of pain) may represent an excellent study population in which to address this knowledge gap...
April 2018: Clinical Orthopaedics and related Research
Mohammad Hadi Aazami, Mohammad Hasan Fathi Nasri, Mohsen Mojtahedi, Shahla Roudbar Mohammadi
The aim of this study was to evaluate the ability of heat-killed baker's yeast (HKBY), the cell wall of baker's yeast (CWBY), and cell wall (1→3)-β-d-glucan of baker's yeast (BGBY) to bind aflatoxin B1 (AFB1 ) in phosphate-buffered saline (PBS) spiked with 0.5 μg/mL AFB1 . Baker's yeast ( Saccharomyces cerevisiae) was heat killed by autoclaving at 121°C for 10 min. The cell wall was physically extracted, and (1→3)-β-d-glucan was extracted by a modified method. The concentration of AFB1 was determined by high-performance liquid chromatography after exposure to binders for three contact times, 30 min, 5 h, and 24 h, at room temperature...
March 16, 2018: Journal of Food Protection
Bach Xuan Tran, Hoa Thi DO, Luong Thanh Nguyen, Victoria Boggiano, Huong Thi LE, Xuan Thanh Thi LE, Ngoc Bao Trinh, Khanh Nam DO, Cuong Tat Nguyen, Thanh Trung Nguyen, Anh Kim Dang, Hue Thi Mai, Long Hoang Nguyen, Selena Than, Carl A Latkin
Consumption of fast food and street food is increasingly common among Vietnamese, particularly in large cities. The high daily demand for these convenient food services, together with a poor management system, has raised concerns about food hygiene and safety (FHS). This study aimed to examine the FHS knowledge and practices of food processors and sellers in food facilities in Hanoi, Vietnam, and to identify their associated factors. A cross-sectional study was conducted with 1,760 food processors and sellers in restaurants, fast food stores, food stalls, and street vendors in Hanoi in 2015...
March 15, 2018: Journal of Food Protection
Stefanos Farfaras, Ninni Sernert, Lars Rostgard Christensen, Erling K Hallström, Jüri-Toomas Kartus
BACKGROUND: The long-term outcome after the treatment of subacromial impingement syndrome (SAIS) with either nonsurgical or surgical methods has not been thoroughly investigated. Hypothesis/Purpose: The purpose was to evaluate the long-term clinical outcome and the presence of rotator cuff injuries and osteoarthritis (OA) after the surgical and nonsurgical treatment of SAIS. The hypothesis was that, at a minimum 10 years after the initial treatment, patients who had undergone acromioplasty would have a better clinical outcome and run a lower risk of developing rotator cuff ruptures and OA as compared with those treated with physical therapy...
March 1, 2018: American Journal of Sports Medicine
Cristina Rodríguez-Seco, Lydia Cabau, Anton Vidal-Ferran, Emilio Palomares
Over hundreds of new organic semiconductor molecules have been synthesized as hole transport materials (HTMs) for perovskite solar cells. However, to date, the well-known N2 , N2 , N2' , N2' , N7 , N7 , N7' , octakis-(4-methoxyphenyl)-9,9-spirobi-[9,9'-spirobi[9 H-fluorene]-2,2',7,7'-tetramine (spiro-OMeTAD) is still the best choice for the best perovskite device performance. Nevertheless, there is a consensus that spiro-OMeTAD by itself is not stable enough for long-term stable devices, and its market price makes its use in large-scale production costly...
March 15, 2018: Accounts of Chemical Research
D Roorda, M J Witvliet, L M Wellens, D V Schulten, C E J Sloots, I de Blaauw, P M A Broens, J Oosterlaan, L W E van Heurn, A F W van der Steeg
AIM: Total colonic aganglionosis (TCA) is a severe form of Hirschsprung's Disease (HD) associated with a high morbidity. This study assesses long-term functional outcome and Quality of Life (QoL) of TCA patients in a national consecutive cohort. METHODS: Medical records of all patients (n=53) diagnosed between 1995 and 2015 were reviewed on surgical and demographic characteristics. Functional outcome of all non-syndromal patients, aged ≥ four years (n=35) was assessed in medical records and with a questionnaire...
March 15, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
Jeffrey T Sakamoto, Heather Burrell Ward, Joao Ricardo Nickenig Vissoci, Stephanie A Eucker
STUDY OBJECTIVE: Pain is a common complaint in the Emergency Department (ED). Its management currently depends heavily on pharmacologic treatment, but evidence suggests non-pharmacologic interventions may be beneficial. The purpose of this systematic review and meta-analysis was to assess whether non-pharmacologic interventions in the ED are effective in reducing pain. METHODS: We conducted a systematic review of the literature on all types of non-pharmacologic interventions in the ED with pain reduction as an outcome...
March 15, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Hao Huang, Xiaohui Ren, Zhongjun Li, Huide Wang, Zongyu Huang, Hui Qiao, Pinghua Tang, Jinlai Zhao, Weiyuan Liang, Yanqi Ge, Jie Liu, Jianqing Li, Xiang Qi, Han Zhang
Two dimensional (2D) Bi nano-sheets had been employed to fabricate electrodes for broadband photo-detection. A series of characterization techniques including SEM and HRTEM verify that Bi nanosheets with intact lamellar structure have been obtained after facile liquid phase exfoliation. In the meanwhile, UV-Vis and Raman spectra are also carried out and confirm the inherent optical and physical properties of Bi nanosheets. Inherited from the topological characteristics of Bi bulk counterpart, the resultant Bi nanosheet-based photo-detector exhibits preferable photo-response activity as well as environmental robustness...
March 15, 2018: Nanotechnology
Jingxin Zhang, Eike Langbehn, Dennis Krupke, Nicholas Katzakis, Frank Steinicke
Telepresence systems have the potential to overcome limits and distance constraints of the real-world by enabling people to remotely visit and interact with each other. However, current telepresence systems usually lack natural ways of supporting interaction and exploration of remote environments (REs). In particular, single webcams for capturing the RE provide only a limited illusion of spatial presence, and movement control of mobile platforms in today's telepresence systems are often restricted to simple interaction devices...
April 2018: IEEE Transactions on Visualization and Computer Graphics
Maria Murcia-Lopez, Anthony Steed
As we explore the use of consumer virtual reality technology for training applications, there is a need to evaluate its validity compared to more traditional training formats. In this paper, we present a study that compares the effectiveness of virtual training and physical training for teaching a bimanual assembly task. In a between-subjects experiment, 60 participants were trained to solve three 3D burr puzzles in one of six conditions comprised of virtual and physical training elements. In the four physical conditions, training was delivered via paper- and video-based instructions, with or without the physical puzzles to practice with...
April 2018: IEEE Transactions on Visualization and Computer Graphics
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