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https://www.readbyqxmd.com/read/28538304/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#1
Ben L Schram, Wayne A Hing, Mike Climstein, James W Furness
Schram, BL, Hing, WA, Climstein, M, and Furness, JW. A performance analysis of a stand-up paddle board marathon race. J Strength Cond Res 31(6): 1552-1556, 2017-Stand-up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national-level SUP marathon race...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538302/physiological-demands-of-elite-cross-country-skiing-during-a-real-competition
#2
Cristina Gonzalez-Millan, Dario Perez-Brunicardi, Juan J Salinero, Beatriz Lara, Javier Abián-Vicen, Francisco Areces, Diana Ruiz-Vicente, Lidon Soriano, Juan Del Coso
Gonzalez-Millan, C, Perez-Brunicardi, D, Salinero, JJ, Lara, B, Abián-Vicen, J, Areces, F, Ruiz-Vicente, D, Soriano, L, and Del Coso, J. Physiological demands of elite cross-country skiing during a real competition. J Strength Cond Res 31(6): 1536-1543, 2017-The aim of this study was to assess different physiological variables before and after a 5-km (women) and 10-km (men) cross-country skiing competition to determine potential mechanisms of fatigue. Fourteen elite-level skiers competed in an official cross-country skiing competition using the classical style (9 men and 5 women)...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538301/proposal-of-a-new-specific-cardiopulmonary-exercise-test-for-taekwondo-athletes
#3
Marcus P Araujo, Antônio C L Nóbrega, Gabriel Espinosa, Matheus R Hausen, Renata R T Castro, Pedro P Soares, Jonas L Gurgel
Araujo, MP, Nóbrega, ACL, Espinosa, G, Hausen, MR, Castro, RRT, Soares, PP, and Gurgel, JL. Proposal of a new specific cardiopulmonary exercise test for taekwondo athletes. J Strength Cond Res 31(6): 1525-1535, 2017-The objective of this study is to evaluate the cardiorespiratory variables of Taekwondo athletes while performing incremental exercise test on an ergometer using a ramp protocol and to propose a specific protocol for assessing these physiological variables during Taekwondo practice. Fourteen athletes participated in 2 incremental exercise tests: a treadmill exercise test (TREADtest) and a Taekwondo-specific exercise test (TKDtest)...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538300/the-influence-of-pitch-size-on-running-performance-and-physiological-responses-during-hurling-specific-small-sided-games
#4
Shane Malone, Kieran D Collins
Malone, S and Collins, K. The Influence of pitch size on running performance and physiological responses during hurling-specific small-sided games. J Strength Cond Res 31(6): 1518-1524, 2017-The current study examined how the impact of pitch dimensions influences physiological and running performance during 4-minute small-sided games (SSGs). Twenty-four (n = 24) hurling players were monitored with global positioning system and heart rate monitors during the in-season training period. Total distance (in meters), high-speed running distance (in meters) (≥17 km·h), very high-speed running distance (≥22 km·h) (in meters), total accelerations (n), acceleration distance (in meters), and peak and mean velocity (in kilometers per hour) were calculated...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538297/effect-of-game-design-goal-type-and-player-numbers-on-the-physiological-and-physical-demands-of-hurling-specific-small-sided-games
#5
Shane Malone, Kieran D Collins
Malone, S and Collins, K. Effect of game design, goal type, and player numbers on the physiological and physical demands of hurling-specific small-sided games. J Strength Cond Res 31(6): 1493-1499, 2017-The current study examined the effect that game design modification, goal type, and player numbers on the running performance and physiological demands of small-sided hurling games (SSG). Forty-eight hurling players (age, 25.5 ± 3.2 years; height, 178.9 ± 3.2 cm; body mass, 78.5 ± 4.5 kg) performed 4 types of SSG (possession [P], normal play [NP], regular goals [RG] and small goals [SG]) in 4-a-side, 5-a-side, and 6-a-side formats...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538296/exercise-intensity-and-technical-demands-of-small-sided-soccer-games-for-under-12-and-under-14-players-effect-of-area-per-player
#6
Domenico Martone, Moreno Giacobbe, Adriano Capobianco, Esther Imperlini, Annamaria Mancini, Mario Capasso, Pasqualina Buono, Stefania Orrù
Martone, D, Giacobbe, M, Capobianco, A, Imperlini, E, Mancini, A, Capasso, M, Buono, P, and Orrù, S. Exercise intensity and technical demands of small-sided soccer games for under-12 and under-14 players: Effect of area per player. J Strength Cond Res 31(6): 1486-1492, 2017-The aim of this study was to evaluate the effects of 6 different areas per player (AP) on exercise intensity (EI) measured during small-sided games (SSGs) and expressed as percentage of maximal heart rate (%MHR) and technical actions (TAs) involvement with the ball, crosses, headers, tackles, shots on goal, dribbling, passing, and target passing-in U-12 and U-14 soccer players during SSGs...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538098/two-dimensional-metal-organic-framework-nanosheets-as-an-enzyme-inhibitor-modulation-of-the-%C3%AE-chymotrypsin-activity
#7
Ming Xu, Shuai Yuan, Xin-Yu Chen, Yu-Jie Chang, Gregory Steven Day, Zhi-Yuan Gu, Hong-Cai Zhou
Two-dimensional metal-organic framework (MOF) nanosheets are utilized as effective enzyme inhibitors, providing an in-spiring means to enhance the control of cellular processes as well as improve our understanding of the surface chemistry between MOFs and enzymes. In this paper, we demonstrated that the activity of α-Chymotrypsin (ChT) can be effectively inhibited with 96.9% inhibition by the 2-D Cu(bpy)2(OTf)2 nanosheets, while the other Zn2(bim)4 nanosheets show no significant inhibition effect towards ChT...
May 24, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28534064/reflections-on-clinical-and-statistical-use-of-the-penetration-aspiration-scale
#8
REVIEW
Catriona M Steele, Karen Grace-Martin
The 8-point Penetration-Aspiration Scale (PAS) was introduced to the field of dysphagia in 1996 and has become the standard method used by both clinicians and researchers to describe and measure the severity of airway invasion during swallowing. In this article, we review the properties of the scale and explore what has been learned over 20 years of use regarding the construct validity, ordinality, intervality, score distribution, and sensitivity of the PAS to change. We propose that a categorical revision of the PAS into four levels of increasing physiological severity would be appropriate...
May 22, 2017: Dysphagia
https://www.readbyqxmd.com/read/28534002/purposeful-engagement-healthy-aging-and-the-brain
#9
Carol D Ryff, Aaron S Heller, Stacey M Schaefer, Carien van Reekum, Richard J Davidson
PURPOSE OF REVIEW: Research on psychological well-being in later life has identified strengths and vulnerabilities that occur with aging. We review the conceptual and philosophical foundations of a eudaimonic model of well-being and its empirical translation into six key dimensions of positive functioning. We also consider its implications for health, broadly defined. RECENT FINDINGS: Numerous findings from national longitudinal samples of U.S. adults are described...
December 2016: Current Behavioral Neuroscience Reports
https://www.readbyqxmd.com/read/28530645/myc-dependent-oxidative-metabolism-regulates-osteoclastogenesis-via-nuclear-receptor-err%C3%AE
#10
Seyeon Bae, Min Joon Lee, Se Hwan Mun, Eugenia G Giannopoulou, Vladimir Yong-Gonzalez, Justin R Cross, Koichi Murata, Vincent Giguère, Marjolein van der Meulen, Kyung-Hyun Park-Min
Osteoporosis is a metabolic bone disorder associated with compromised bone strength and an increased risk of fracture. Inhibition of the differentiation of bone-resorbing osteoclasts is an effective strategy for the treatment of osteoporosis. Prior work by our laboratory and others has shown that MYC promotes osteoclastogenesis in vitro, but the underlying mechanisms are not well understood. In addition, the in vivo importance of osteoclast-expressed MYC in physiological and pathological bone loss is not known...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28529763/characterisation-of-a-novel-poly-ether-ether-ketone-calcium-sulphate-composite-for-bone-augmentation
#11
Erik A B Hughes, Liam M Grover
BACKGROUND: Calcium sulphate (CS) has been used in bone grafting since the 1800s. It has not replaced autograft as the gold standard, however, since its dissolution occurs rapidly in bodily fluids, meaning that the material cannot support long-term bone growth. Here, the polymer poly (ether ether ketone) (PEEK) was used to slow dissolution in in vitro physiological environments and augment the mechanical properties of the material. METHODS: PEEK/CS specimens were fabricated by combining powders of PEEK and CS with water, resulting in a hardening paste...
2017: Biomaterials Research
https://www.readbyqxmd.com/read/28528573/a-sensitive-semi-quantitative-mammalian-two-hybrid-assay
#12
Elisabeth Riegel, Thomas Heimbucher, Thomas Höfer, Thomas Czerny
Protein-protein interactions critically determine the function of a protein within the cell. Several methods have been developed for the analysis of protein interactions, including two-hybrid assays in yeast and mammals. Mammalian two-hybrid systems provide the ideal physiological environment to study the interactions of mammalian proteins; however, these approaches are limited in sensitivity and their ability to quantify interaction strength. Here, we present an inducible mammalian two-hybrid (iM2H) system using the small-molecule dimerizer rapalog for recruitment of multiple transactivation domains into the M2H system...
May 1, 2017: BioTechniques
https://www.readbyqxmd.com/read/28523994/potential-biomolecules-and-current-treatment-technologies-for-diabetic-foot-ulcer-an-overview
#13
Zenith Khashim, Shila Samuel, Nallusamy Duraisamy, Kathiravan Krishnan
BACKGROUND: Diabetic foot ulceration remains a major challenge is one of the most expensive and a leading cause of major and minor among patients with a diabetic foot ulcer. Hence the purpose of this review emphases on potential molecular markers involved in diabetic ulcer physiology, the efficacy of different types of dressing materials, therapy and newer therapeutic approach like nanoparticles for the of diabetic foot ulcer. METHODS: We conducted a systematic literature reviews search by using Pubmed and other web search...
May 18, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28523961/chronotype-and-response-to-training-during-the-polar-night-a-pilot-study
#14
Jacopo Antonino Vitale, Eva Bjoerkesett, Andrea Campana, Giacomo Panizza, Andi Weydahl
BACKGROUND: An individual's chronotype influences his or her physiological rhythms. Some studies have looked at the effect of time of day on the responses to exercise, but studies on the effect of long-term training are lacking. OBJECTIVE:  To report the effects of an 8-week training period during the polar night in non-athletes of different chronotypes living at 70°N. DESIGN:  In all, 10 morning (M), 10 neither (N) and 10 evening (E) types were recruited, and their aerobic capacity (VO2max), strength, flexibility and balance before and after the training period were tested...
2017: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/28513836/facilitation-of-mossy-fibre-driven-spiking-in-the-cerebellar-nuclei-by-the-synchrony-of-inhibition
#15
Yeechan Wu, Indira M Raman
Large projection neurons of the cerebellar nuclei (CbN cells), whose activity generates movement, are inhibited by Purkinje cells and excited by mossy fibres. The high convergence, firing rates, and strength of Purkinje inputs predict powerful suppression of CbN cell spiking, raising the question of what activity patterns favor excitation over inhibition. Recording from CbN cells at near-physiological temperatures in cerebellar slices from weanling mice, we measured the amplitude, kinetics, voltage-dependence, and short-term plasticity of mossy fibre-mediated EPSCs...
May 17, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28513270/physiological-and-performance-measures-for-baseline-concussion-assessment
#16
Danielle M Dobney, Scott G Thomas, Tim Taha, Michelle Keightley
CONTEXT: Baseline testing is a common strategy for concussion assessment and management. Research continues to evaluate novel measures for potential to improve baseline testing methods. OBJECTIVES: The primary objective was to; 1) determine the feasibility of including physiological, neuromuscular and mood measures as part of baseline concussion testing protocol, 2) describe typical values in a varsity athlete sample, and 3) estimate the influence of concussion history on these baseline measures...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28506501/sympathetic-control-of-the-brain-circulation-appreciating-the-complexities-to-better-understand-the-controversy
#17
Patrice Brassard, Michael M Tymko, Philip N Ainslie
Although the human cerebral circulation is richly innervated with sympathetic nerve fibers, the role of sympathetic nerve activity (SNA) on the regulation of cerebral blood flow (CBF) remains debated. Several issues may be responsible for the conflicting conclusions reported in the animal vs. human literature in regards to the sympathetic control of the brain circulation. Furthermore, due to the physiological consequences associated with SNA blockade (e.g. changes in blood pressure and cardiac output), and differences in methodology (e...
May 5, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28505065/arterial-reservoir-characteristics-and-central-to-peripheral-blood-pressure-amplification-in-the-human-upper-limb
#18
Xiaoqing Peng, Martin G Schultz, Dean S Picone, J Andrew Black, Nathan Dwyer, Philip Roberts-Thomson, Justin E Davies, James E Sharman
BACKGROUND: Arterial reservoir characteristics are related to blood pressure (BP) and independently predict cardiovascular events. It is unknown if arterial reservoir characteristics are modified from the central-to-peripheral large arteries and whether there is a contributory role to BP amplification. The aim of this study was to assess central-to-peripheral changes in arterial reservoir characteristics and determine associations with BP. METHODS: Reservoir pressure (RP) and excess pressure (XSP) were derived from intra-arterial BP waveforms among 51 participants (aged 63 ± 13 years, 63% men) undergoing clinically indicated cardiac angiography...
May 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28503080/a-bayesian-mixture-model-for-missing-data-in-marine-mammal-growth-analysis
#19
Mary E Shotwell, Wayne E McFee, Elizabeth H Slate
Much of what is known about bottle nose dolphin (Tursiops truncatus) anatomy and physiology is based on necropsies from stranding events. Measurements of total body length, total body mass, and age are used to estimate growth. It is more feasible to retrieve and transport smaller animals for total body mass measurement than larger animals, introducing a systematic bias in sampling. Adverse weather events, volunteer availability, and other unforeseen circumstances also contribute to incomplete measurement. We have developed a Bayesian mixture model to describe growth in detected stranded animals using data from both those that are fully measured and those not fully measured...
December 2016: Environmental and Ecological Statistics
https://www.readbyqxmd.com/read/28501968/effect-of-parachute-jump-in-the-psychophysiological-response-of-soldiers-in-urban-combat
#20
Joaquín Sánchez-Molina, José J Robles-Pérez, Vicente J Clemente-Suárez
The study of organic and psychological response during combat situations has been poorly reported despite its importance for soldiers training and specific instruction, so it was proposed as aim of the present investigation to analyze the effect of a tactical parachute simulated jump in psycho-physiological response of paratroopers' warfighters during an urban combat simulation. 19 male paratroopers (31.9 ± 6.2 year old; 173.6 ± 5.3 cm; 73.8 ± 8.3 Kg) of the Spanish Army were divided in two groups: parachute jump group (n:11) that conducted a simulated parachute jump and a urban combat maneuver and a non-parachute jump group (n:8) that only conducted an urban combat maneuver...
June 2017: Journal of Medical Systems
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