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https://www.readbyqxmd.com/read/28538315/evaluation-of-the-effectiveness-of-compression-garments-on-autonomic-nervous-system-recovery-after-exercise
#1
Alessandro Piras, Giorgio Gatta
Piras, A and Gatta, G. Evaluation of the effectiveness of compression garments on autonomic nervous system recovery after exercise. J Strength Cond Res 31(6): 1636-1643, 2017-The aim of this investigation was to evaluate the recovery pattern of a whole-body compression garment on hemodynamic parameters and on autonomic nervous system (ANS) activity after a swimming performance. Ten young male athletes were recruited and tested in 2 different days, with and without wearing the garment during the recovery phase...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538303/examining-fundamental-movement-competency-and-closed-chain-upper-extremity-dynamic-balance-in-swimmers
#2
Garrett S Bullock, Nate Brookreson, Amy M Knab, Robert J Butler
Bullock, GS, Brookreson, N, Knab, AM, and Butler, RJ. Examining fundamental movement competency and closed-chain upper-extremity dynamic balance in swimmers. J Strength Cond Res 31(6): 1544-1551, 2017-Abnormal fundamental movement patterns and upper-quarter dynamic balance are proposed mechanisms affecting athletic performance and injury risk. There are few studies investigating functional movement and closed-chain upper-extremity dynamic stability in swimmers. The purpose of this study was to determine differences in fundamental movement competency and closed-chain upper-extremity dynamic balance, using the Functional Movement Screen (FMS) and Upper-Quarter Y Balance Test (YBT-UQ), of high school (HS; n = 70) and collegiate (COL; n = 70) swimmers...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28535436/microcystin-lr-induces-changes-in-the-gaba-neurotransmitter-system-of-zebrafish
#3
Wei Yan, Li Li, Guangyu Li, Sujuan Zhao
It has been reported that exposure to microcystins altered adult zebrafish swimming performance parameters, but the possible mechanisms of action remain unknown. Neuronal activity depends on the balance between the number of excitatory and inhibitory processes which are associated with neurotransmitters. In the present study, zebrafish embryos (5 d post-fertilization) were exposed to 0, 0.3, 3 and 30μg/L (microcystin-LR) MCLR for 90day until reaching sexual maturity. To investigate the effects of MCLR on the neurotransmitter system, mRNA levels involved in amino acid g-aminobutyric acid (GABA) and glutamate metabolic pathways were tested using quantitative real-time PCR...
May 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28533980/mitochondrial-complex-i-deficiency-leads-to-the-retardation-of-early-embryonic-development-in-ndufs4-knockout-mice
#4
Mei Wang, Ya-Ping Huang, Han Wu, Ke Song, Cong Wan, A-Ni Chi, Ya-Mei Xiao, Xiao-Yang Zhao
BACKGROUND: The NDUFS4 gene encodes an 18-kD subunit of mitochondria complex I, and mutations in this gene lead to the development of a severe neurodegenerative disease called Leigh syndrome (LS) in humans. To investigate the disease phenotypes and molecular mechanisms of Leigh syndrome, the Ndufs4 knockout (KO) mouse has been widely used as a novel animal model. Because the homozygotes cannot survive beyond child-bearing age, whether Ndufs4 and mitochondrial complex I influence early embryonic development remains unknown...
2017: PeerJ
https://www.readbyqxmd.com/read/28518005/safety-considerations-for-medical-staff-and-patients-who-fly-over-water-in-a-helicopter-for-work-or-recreation
#5
Christopher J Brooks, Conor V MacDonald
BACKGROUND: Around 25% of people involved in a helicopter accident in water do not survive. From time to time, physicians and their medical staff are required to fly over water in a helicopter to attend one or more seriously ill patients. Many will have had little or no experience of the issues involved if the helicopter has an accident in the water. Also as Family Practitioners, Aeromedical Examiners, and Flight Surgeons, they are asked to provide advice to patients, travel agents, and airline booking agents about whether an overwater helicopter flight is advisable or not...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28516860/salmonella-diva-vaccine-reduces-disease-colonization-and-shedding-due-to-virulent-s-typhimurium-infection-in-swine
#6
Bradley L Bearson, Shawn M D Bearson, Brian W Brunelle, Darrell O Bayles, In Soo Lee, Jalusa D Kich
PURPOSE: Non-host-adapted Salmonella serovars, including the common human food-borne pathogen Salmonella enterica serovar Typhimurium (S. Typhimurium), are opportunistic pathogens that can colonize food-producing animals without causing overt disease. Interventions against Salmonella are needed to enhance food safety, protect animal health and allow the differentiation of infected from vaccinated animals (DIVA). METHODOLOGY: An attenuated S. Typhimurium DIVA vaccine (BBS 866) was characterized for the protection of pigs following challenge with virulent S...
May 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28514808/physiological-dynamic-apnea-responses-in-relation-to-apnea-capacity-in-triathletes
#7
Alexandre Guimard, Houssem Zorgati, Sylvain Brulaire, Virgile Amiot, Fabrice Prieur, Katia Collomp
The aim was to assess the cardiac, arterial oxygen saturation, lactate, hormonal and Borg rating of perceived exertion (RPE) responses to acute apnea in relation to apnea capacity in 18 middle-aged triathletes. Subjects were monitored while swimming two 50-m freestyle exercise trials with fins at maximal speed: with normal frequency breathing (NB) and with complete apnea (Ap); the latter was used to assess apnea capacity. The subjects with significant alteration in swimming performance inducing a time increase greater than 2...
May 17, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28513541/promoting-healthy-lifestyle-and-well-being-in-adolescents-through-outdoor-physical-activity
#8
Karel Fromel, Michal Kudlacek, Dorota Groffik, Zbynek Svozil, Adam Simunek, Wieslaw Garbaciak
Health-enhancing physical activities (PA) performed outdoors could markedly contribute to the adoption of a healthy lifestyle in adolescence. The differences between PA preferences and actual opportunities for these PA are an issue that has received frequent attention. To date, the extent to which these differences are reflected in adolescents meeting PA recommendations and their well-being has not been explored. In total, 10,086 respondents took part in an on-line research project regarding PA preferences...
May 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28512334/three-dimensional-scoring-of-zebrafish-behavior-unveils-biological-phenomena-hidden-by-two-dimensional-analyses
#9
Simone Macrì, Daniele Neri, Tommaso Ruberto, Violet Mwaffo, Sachit Butail, Maurizio Porfiri
The study of zebrafish behavior represents a cornerstone upon which basic researchers promise to advance knowledge in life sciences. Although zebrafish swim in a three-dimensional (3D) space, their behavior in the lab is almost exclusively scored in two dimensions, whereby zebrafish are recorded using a single camera providing 2D videos. Whether this dimensional reduction preserves the reliability of data has not been addressed. Here we show that, compared to a 3D observation, 2D data are flawed by over-reporting and under-reporting of locomotory differences...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28505580/factors-affecting-perceived-change-in-physical-activity-in-pregnancy
#10
Astrid Merkx, Marlein Ausems, Luc Budé, Raymond de Vries, Marianne J Nieuwenhuijze
OBJECTIVE: reduction of physical activity (PA) during pregnancy is common but undesirable, as it is associated with negative outcomes, including excessive gestational weight gain. Our objective was to explore changes in five types of activity that occurred during pregnancy and the behavioural determinants of the reported changes in PA. DESIGN: we performed a secondary analysis of a cross sectional survey that was constructed using the ASE-Model - an approach to identifying the factors that drive behaviour change that focuses on Attitude, Social influence, and self-Efficacy...
May 9, 2017: Midwifery
https://www.readbyqxmd.com/read/28505350/evidence-of-altered-trigeminal-nociception-in-an-animal-model-of-fibromyalgia
#11
Masoud Nazeri, Mohammad-Reza Zarei, Amin-Reza Pourzare, Hamid-Reza Ghahreh-Chahi, Fatemeh Abareghi, Mohammad Shabani
Objective. : Fibromyalgia (FM) is a debilitating chronic condition that significantly affects quality of life. A strong association has been demonstrated between FM and chronic pain in the trigeminal region in clinical studies. This study was performed to evaluate the response to acute and chronic noxious stimuli applied to the facial region. Methods. : Adult male Wistar rats (250-270 g, N = 10 for each group) were used in the current study. A subchronic swim stress model was used as the animal model of FM...
May 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28503523/treadmill-exercise-ameliorates-depressive-symptoms-through-increasing-serotonin-expression-in-postpartum-depression-rats
#12
Eun-Sang Ji, Jae-Min Lee, Tae-Woon Kim, You-Mi Kim, Yeon-Soo Kim, Kijeong Kim
Postpartum depression (PPD) is defined as the depressive symptoms that occur from the moment of delivery until 12 months after delivery. PPD symptoms are closely associated with reduced activity of the serotonergic system. Serotonin (5-hydroxytryptamine, 5-HT) plays an important role in the pathogenesis of depression. Tryptophan hydroxylase (TPH) catalyzes the rate-limiting step of 5-HT biosynthesis in the serotonergic neurons. Exercise exerts anti-depressive effect on depression patients as well as on animal models of depression...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28503161/exploring-task-specific-independent-standing-in-3-to-5-month-old-infants
#13
Hermundur Sigmundsson, Håvard W Lorås, Monika Haga
Perspectives on developmental milestones suggest that an infant's ability to stand without support occurs at the age of 9-16 months. The two exploratory tasks were part of a baby swimming routine, conducted over a period of 12 weeks (24 sessions), and the aim was to examine whether young infants (mean age 97 days) improved their performance in standing as measured by prolonged time-to-stand. The data suggest that 3- to 5-month-old infants are capable of demonstrating signs of motor learning in task-specific standing...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28502779/microeukaryote-community-in-a-partial-nitritation-reactor-prior-to-anammox-and-an-insight-into-the-potential-of-ciliates-as-performance-bioindicators
#14
Oriol Canals, Ramon Massana, Joan Lluís Riera, Vanessa Balagué, Humbert Salvadó
An in-depth, long-term, multidisciplinary study was conducted in order to study the microeukaryote community in a partial nitritation (PN) reactor prior to anammox. The PN reactor operated with moving bed biofilm reactor (MBBR) technology, using plastic supports (carriers) for biofilm development. The microeukaryote community from the biofilm (BF) and the surrounding media (mixed liquor or ML) were analysed separately. Despite the physicochemical conditions under which the PN-MBBR operated (an average of 305...
May 11, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28499898/antidepressant-drugs-for-beta-amyloid-induced-depression-a-new-standpoint
#15
Schiavone Stefania, Tucci Paolo, Mhillaj Emanuela, Bove Maria, Trabace Luigia, Morgese Maria Grazia
Mounting evidence suggests that depression represents a risk factor and an early manifestation of Alzheimer's disease (AD). Neuropsychiatric symptoms may derive from neurobiological changes in specific brain areas and may be considered prodromal of dementia. We have previously reported the depressive-like profile in rats receiving a single intracerebroventricular injection of soluble amyloid beta protein (ßA). Here, we verified the effect of different classes of antidepressants on the ßA-induced depressive behavior and on cortical monoamine levels...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28497283/the-impact-of-resistance-training-on-swimming-performance-a-systematic-review
#16
REVIEW
Emmet Crowley, Andrew J Harrison, Mark Lyons
BACKGROUND: The majority of propulsive forces in swimming are produced from the upper body, with strong correlations between upper body strength and sprint performance. There are significant gaps in the literature relating to the impact of resistance training on swimming performance, specifically the transfer to swimming performance. OBJECTIVE: The aims of this systematic literature review are to (1) explore the transfer of resistance-training modalities to swimming performance, and (2) examine the effects of resistance training on technical aspects of swimming...
May 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28496983/correlated-velocity-models-as-a-fundamental-unit-of-animal-movement-synthesis-and-applications
#17
Eliezer Gurarie, Christen H Fleming, William F Fagan, Kristin L Laidre, Jesús Hernández-Pliego, Otso Ovaskainen
BACKGROUND: Continuous time movement models resolve many of the problems with scaling, sampling, and interpretation that affect discrete movement models. They can, however, be challenging to estimate, have been presented in inconsistent ways, and are not widely used. METHODS: We review the literature on integrated Ornstein-Uhlenbeck velocity models and propose four fundamental correlated velocity movement models (CVM's): random, advective, rotational, and rotational-advective...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28492862/establishing-baseline-normative-values-for-the-child-sport-concussion-assessment-tool
#18
M Alison Brooks, Traci R Snedden, Benjamin Mixis, Scott Hetzel, Timothy A McGuine
Importance: The Child Sport Concussion Assessment Tool (SCAT3) is a postconcussion sideline assessment tool measuring symptoms, cognition, and balance in preadolescent children. Minimal normative baseline data exist to aid decision making in clinical and athletic settings. Objective: To collect normative baseline data for the Child SCAT3 in a large cohort of young athletes. Design, Setting, and Participants: A cross-sectional study was conducted from May 31 to August 12, 2014, at various sporting events (basketball, soccer, baseball, and swimming) in Central Wisconsin among children 5 to 13 years of age who were English-speaking and did not report a lower leg injury within the past 2 months or a concussion within the past month...
May 8, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28488921/sex-differences-in-world-record-performance-the-influence-of-sport-discipline-and-competition-duration
#19
Øyvind Sandbakk, Guro Strøm Solli, Hans-Christer Holmberg
In the present review, we summarize scientific knowledge concerning sex differences in world record performance and the influence of sport discipline and competition duration. In addition, we discuss how physiological factors relate to sex dimorphism. While cultural factors played a major role in the rapid improvement of performance of women relative to men up until the 1990's, sex differences between the world's best athletes in most events have remained relatively stable at approximately 8-12%. The exceptions are events in which upper-body power is a major contributor, where this difference is more than 15%, and ultra-endurance swimming, where the gap is now less than 5%...
May 10, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28488837/allometric-associations-between-body-size-shape-and-100-m-butterfly-speed-performance
#20
Senda Sammoud, Alan M Nevill, Yassine Negra, Raja Bouguezzi, Helmi Chaabene, Younés Hachana
BACKGROUND: This study aimed to estimate the optimal body size, limb--segment length, and girth or breadth ratios associated with 100--m butterfly speed performance in swimmers. METHODS: One--hundred--sixty-seven swimmers as subjects (male: n=103; female: n=64). Anthropometric measurements comprised height, body--mass, skinfolds, arm-span, upper--limb--length, upper--arm, forearm, hand--lengths, lower--limb--length, thigh--length, leg--length, foot--length, arm--relaxed--girth, forearm--girth, wrist--girth, thigh--girth, calf--girth, ankle--girth, biacromial and biiliocristal--breadths...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
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