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Long distance running

Nicholas J Hanson, Janet Buckworth
Time perception during exercise may be affected by chosen intensity, and may also affect enjoyment of exercise and subsequent long-term adherence. However, little is known about how individuals perceive the passage of time during exercise, or if factors such as sex are influential. The purpose of this study was to determine if there are sex related differences in perception of time during a bout of exercise in experienced runners. Twenty-two recreational runners (11 men, 11 women) participated in a bout of treadmill running where they were allowed to select their intensity...
2016: International Journal of Exercise Science
Atsushi Imai, Koji Kaneoka
BACKGROUND: Although it is believed that trunk function is important for athletic performance, few researchers have demonstrated a significant relationship between the trunk function and athletic performance. Recently, the prone plank and side plank tests have been used to assess trunk function. PURPOSE: The purpose of this study was to investigate the relationships between trunk endurance plank tests and athletic performance tests, including whether there is a relationship between long distance running and trunk endurance plank tests in adolescent male soccer players...
October 2016: International Journal of Sports Physical Therapy
Bérenger Bourgeois, Eduardo González, Anne Vanasse, Isabelle Aubin, Monique Poulin
The disruption of hydrological connectivity by human activities such as flood regulation or land-use changes strongly impacts riparian plant communities. However, landscape-scale processes have generally been neglected in riparian restoration projects as opposed to local conditions, even though such processes might largely influence community recovery. We surveyed plant composition of field edges and riverbanks in 51 riparian zones restored by tree planting (565 1-m(2) plots) within two agricultural watersheds in southeastern Québec, Canada...
October 2016: Ecological Applications: a Publication of the Ecological Society of America
Josué Gómez-Molina, Ana Ogueta-Alday, Christopher Stickley, Jesus Camara Tobalina, Jon Cabrejas-Ugartondo, Juan García-López
The aim of this study was to compare the spatio-temporal parameters of trained runners and untrained participants with the same foot strike pattern (rearfoot) during running at controlled speeds. Twenty-one participants were classified in two groups according to their training experience: Trained (n=10, amateur runners with long distance training experience) and Untrained (n=11, healthy non-trained participants). Anthropometric variables were recorded, and the participants performed both a submaximal (between 9 and 15 km·h) and a graded exercise running test (from 6 km·h until exhaustion) on a treadmill...
October 6, 2016: Journal of Strength and Conditioning Research
Lee Chan Jang, Sung Su Park
This is a case report that suggests the possible association between multiple splanchnic arterial aneurysms and long-distance running. The clinical features of one patient admitted at Chungbuk National University Hospital for treatment of multiple splanchnic arterial aneurysms were reviewed. A 54-year-old man had a recurrent, intermittent and epigastric pain for 2 months. There was no abnormality in gastroscopy and colonoscopy. An abdominal computed tomography angiography documented calcified superior mesenteric artery (SMA) and splenic artery aneurysms...
September 2016: Vascular Specialist International
Thijs Maria Anne Ackermans, Gaspar Epro, Christopher McCrum, Kai Daniel Oberländer, Frank Suhr, Maarten Robert Drost, Kenneth Meijer, Kiros Karamanidis
PURPOSE: We aimed to determine whether there are different changes in Achilles tendon (AT) mechanical properties in middle-aged, compared to younger runners that might indicate that tendon fatigue, induced by long-distance running, is age-dependent. METHODS: 27 middle-aged (50-67 years) and 22 younger (21-29 years) participants ran a 21 km route at their own pace (mean and SD: old: 3.1 ± 0.3 m s(-1); young: 3.6 ± 0.5 m s(-1)). We tested for changes in the AT force-elongation relationship using dynamometry and ultrasonography during isometric voluntary ankle plantarflexion ramp contractions, conducted 20-28 h pre-run, immediately pre-run, immediately post-run and 20-28 h post-run...
September 30, 2016: European Journal of Applied Physiology
András Terebessy, Melinda Matyasovszky, Ferenc Horváth, Áron Horosz, Irén Juhász, Zsuzsa Győrffy
INTRODUCTION: The health status of doctors, nurses and any other professionals working in the healthcare sector influences the quality of their work. Therefore, health promotion of healthcare workers is not only an occupational health program but it can be considered as an action towards improving the quality of care. AIM: The current study was designed to assess the efficacy of a health promotion intervention among healthcare workers after health status assessment...
September 2016: Orvosi Hetilap
Sarah V Biedermann, Matthias K Auer, Laura Bindila, Gabriele Ende, Beat Lutz, Wolfgang Weber-Fahr, Peter Gass, Johannes Fuss
Beneficial effects of voluntary wheel running on hippocampal neurogenesis, morphology and hippocampal-dependent behavior have widely been studied in rodents, but also serious side effects and similarities to stereotypy have been reported. Some mouse strains run excessively when equipped with running wheels, complicating the comparability to human exercise regimes. Here, we investigated how exercise restriction to 6h/day affects hippocampal morphology and metabolism, stereotypic and basal behaviors, as well as the endocannabinoid system in wheel running C57BL/6 mice; the strain most commonly used for behavioral analyses and psychiatric disease models...
September 20, 2016: Hormones and Behavior
Bertrand S Clarke, Saeid Amiri, Jennifer L Clarke
BACKGROUND: Clustering is a widely used collection of unsupervised learning techniques for identifying natural classes within a data set. It is often used in bioinformatics to infer population substructure. Genomic data are often categorical and high dimensional, e.g., long sequences of nucleotides. This makes inference challenging: The distance metric is often not well-defined on categorical data; running time for computations using high dimensional data can be considerable; and the Curse of Dimensionality often impedes the interpretation of the results...
2016: BMC Bioinformatics
Alexander Q Vining, Charles L Nunn
BACKGROUND AND OBJECTIVES: Research in evolutionary medicine provides many examples of how evolution has shaped human susceptibility to disease. Traits undergoing rapid evolutionary change may result in associated costs or reduce the energy available to other traits. We hypothesize that humans have experienced more such changes than other primates as a result of major evolutionary change along the human lineage. We investigated 41 physiological traits across 50 primate species to identify traits that have undergone marked evolutionary change along the human lineage...
2016: Evolution, Medicine, and Public Health
Jiu-An Lv, Yuyun Liu, Jia Wei, Erqiang Chen, Lang Qin, Yanlei Yu
The manipulation of small amounts of liquids has applications ranging from biomedical devices to liquid transfer. Direct light-driven manipulation of liquids, especially when triggered by light-induced capillary forces, is of particular interest because light can provide contactless spatial and temporal control. However, existing light-driven technologies suffer from an inherent limitation in that liquid motion is strongly resisted by the effect of contact-line pinning. Here we report a strategy to manipulate fluid slugs by photo-induced asymmetric deformation of tubular microactuators, which induces capillary forces for liquid propulsion...
September 7, 2016: Nature
Beat Knechtle, Pantelis Theodoros Nikolaidis, Michael Stiefel, Thomas Rosemann, Christoph Alexander Rüst
The performance and sex differences of long-distance triathletes competing in 'Ironman Hawaii' are well investigated. However, less information is available with regards to triathlon races of the Ironman distance held under extreme environmental conditions (e.g. extreme cold) such as the 'Isklar Norseman Xtreme Triathlon' which started in 2003. In 'Isklar Norseman Xtreme Triathlon', athletes swim at a water temperature of ~13-15°C, cycle at temperatures of ~5-20°C and run at temperatures of ~12-28°C in the valley and of ~2-12°C at Mt...
October 31, 2016: Chinese Journal of Physiology
Fabian Proft, Mathias Grunke, Christiane Reindl, Markus A Schramm, Felix Mueller, Maximilian Kriegmair, Jan Leipe, Peter Weinert, Hendrik Schulze-Koops, Matthias Witt
No abstract text is available yet for this article.
2016: BMC Musculoskeletal Disorders
Yuwadee Boonyasit, Orawon Chailapakul, Wanida Laiwattanapaisal
A novel three-dimensional paper-based electrochemical impedance device (3D-PEID) is first introduced for measuring multiple diabetes markers. Herein, a simple 3D-PEID composed of a dual screen-printed electrode on wax-patterned paper coupled with a multilayer of magnetic paper was fabricated for label-free electrochemical detection. The results clearly demonstrated in a step-wise manner that the haptoglobin (Hp)-modified and 3-aminophenylboronic acid (APBA)-modified eggshell membranes (ESMs) were highly responsive to a clinically relevant range of total (0...
September 14, 2016: Analytica Chimica Acta
T B Andersen, P Krustrup, M Bendiksen, C O Orntoft, M B Randers, S A Pettersen
The present study evaluated the effect of a smaller, lighter ball on kicking speed and technical-tactical and physical match performance in high-level adult female footballers. In the laboratory test setting, the peak ball velocity was 6% higher with the new ball (NB) than the standard ball (SB) (26.5±0.5 vs. 25.1±0.5 m·s(-1), p<0.05). However, during match-play, no differences were observed in mean heart rate (87±5 vs. 87±5%HRmax; p>0.05), blood lactate (90 min: 4.7±1.7 and 4.0±1.7 mmol·l(-1); p>0...
August 23, 2016: International Journal of Sports Medicine
Deborah R Smith, Yong-Chao Su, Reut Berger-Tal, Yael Lubin
Dispersal in most group-living species ensures gene flow among groups, but in cooperative social spiders, juvenile dispersal is suppressed and colonies are highly inbred. It has been suggested that such inbred sociality is advantageous in the short term, but likely to lead to extinction or reduced speciation rates in the long run. In this situation, very low levels of dispersal and gene flow among colonies may have unusually important impacts on fitness and persistence of social spiders. We investigated sex-specific differences in dispersal and gene flow among colonies, as reflected in the genetic structure within colonies and populations of the African social spider Stegodyphus dumicola Pocock, 1898 (Eresidae)...
August 2016: Ecology and Evolution
Hyunchul Roh, Jinyong Jeong, Younggun Cho, Ayoung Kim
This paper presents accurate urban map generation using digital map-based Simultaneous Localization and Mapping (SLAM). Throughout this work, our main objective is generating a 3D and lane map aiming for sub-meter accuracy. In conventional mapping approaches, achieving extremely high accuracy was performed by either (i) exploiting costly airborne sensors or (ii) surveying with a static mapping system in a stationary platform. Mobile scanning systems recently have gathered popularity but are mostly limited by the availability of the Global Positioning System (GPS)...
2016: Sensors
Jonathan H Kim, Yi-An Ko, Jeff Hedley, James MacNamara, Mosaab Awad, William Taylor, Sean Healy, Hiroshi Aida, Ngoc-Anh Le, Peter W Wilson, Melissa White, Laurence S Sperling, Joseph S Wilson, Aaron L Baggish
OBJECTIVE: Exercise-induced cardiac dysfunction and corollary biomarker release have been documented following long-distance running events. To what degree these processes occur during shorter distance running events is unknown. METHODS: 72 healthy recreational runners (54% male/46% female) recruited by age (group 1 (18-20 years old, N=19); group 2 (45-50 years old, N=27); group 3 (70-75 years old, N=26)) were studied with echocardiography and biochemical profiling during participation in a 10 km running race...
August 16, 2016: Heart: Official Journal of the British Cardiac Society
Menduri L Hoessly, Lukas M Wildi
BACKGROUND: Various studies have investigated structural knee changes after running, with conflicting results. PURPOSE: To perform a systematic review of acute changes in knee structures as detected by magnetic resonance imaging (MRI) after running and assess the reversibility of these changes. STUDY DESIGN: Systematic review. METHODS: A systematic literature search in Medline, Cochrane, Embase, and Scopus was performed...
August 12, 2016: American Journal of Sports Medicine
D D Ferley, D T Hopper, M D Vukovich
This study compared 6 weeks of incline treadmill interval training (INC) performed on a 10% treadmill grade using either sprint-like efforts or slower, longer bouts. 24 individuals were randomly assigned between 2 groups that each completed 2 INC and one 30-min level-grade sessions∙wk(-1). Training intensities, bout durations and the number of intervals per INC session were the velocity associated with VO2max (Vmax), 30 s and 10-14 (INCShort n=12), and 68%Vmax, ~3 min and 4-6 (INCLong n=12), respectively...
August 1, 2016: International Journal of Sports Medicine
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