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https://www.readbyqxmd.com/read/28196500/monitoring-training-response-in-young-friesian-dressage-horses-using-two-different-standardised-exercise-tests-sets
#1
Cornelis Marinus de Bruijn, Willem Houterman, Margreet Ploeg, Bart Ducro, Berit Boshuizen, Klaartje Goethals, Elisabeth-Lidwien Verdegaal, Catherine Delesalle
BACKGROUND: Most Friesian horses reach their anaerobic threshold during a standardized exercise test (SET) which requires lower intensity exercise than daily routine training. AIM: to study strengths and weaknesses of an alternative SET-protocol. Two different SETs (SETA and SETB) were applied during a 2 month training period of 9 young Friesian dressage horses. SETB alternated short episodes of canter with trot and walk, lacking long episodes of cantering, as applied in SETA...
February 14, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28194734/physical-and-physiological-profiles-of-brazilian-jiu-jitsu-athletes-a-systematic-review
#2
REVIEW
Leonardo Vidal Andreato, Francisco Javier Díaz Lara, Alexandro Andrade, Braulio Henrique Magnani Branco
BACKGROUND: Brazilian jiu-jitsu is a grappling combat sport that has intermittency as its core element; in other words, actions of high, moderate and low intensity are interspersed during matches, requiring a high level of conditioning to support optimal levels of performance for the total match time. The athletes perform from four to six matches during a day of competition, and this number may increase if the open-class competition, which is held parallel to the competition by weight class, is considered...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28173605/tethered-swimming-for-the-evaluation-and-prescription-of-resistance-training-in-young-swimmers
#3
Marcelo Papoti, Adelino S R da Silva, Carlos Augusto Kalva-Filho, Gustavo Gomes Araujo, Vanessa Santiago, LuizEduardo Barreto Martins, Sérgio Augusto Cunha, Claudio Alexandre Gobatto
The aims of the present study were 1) to evaluate the effects of 11 weeks of a typical free-swimming training program on aerobic and stroke parameters determined in tethered swimming (Study 1; n=13) and 2) to investigate the responses of tethered swimming efforts, in addition to free-swimming sessions, through 7 weeks of training (Study 2; n=21). In both studies, subjects performed a graded exercise test in tethered swimming (GET) to determine anaerobic threshold (AnT), stroke rate at AnT (SRAnT), peak force at GET (PFGET) and peak blood lactate ([La-]GET)...
February 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28149421/physical-characteristics-of-elite-adolescent-female-basketball-players-and-their-relationship-to-match-performance
#4
Azahara Fort-Vanmeerhaeghe, Alicia Montalvo, Alexander Latinjak, Viswanath Unnithan
There were two aims of this study: first, to investigate physical fitness and match performance differences between under-16 (U16) and under-18 (U18) female basketball players, and second, to evaluate the relationship between physical fitness and game-related performances. Twenty-three young, female, elite Spanish basketball players (16.2 1.2 years) participated in the study. The sample was divided into two groups: U16 and U18 players. The average scores from pre- and post-season physical fitness measurements were used for subsequent analyses...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149383/physical-fitness-and-performance-of-polish-ice-hockey-players-competing-at-different-sports-levels
#5
Robert Roczniok, Arkadiusz Stanula, Tomasz Gabryś, Urszula Szmatlan-Gabryś, Artur Gołaś, Petr Stastny
The study aimed to determine the values of selected aerobic and anaerobic capacity variables, physical profiles, and to analyze the results of on-ice tests performed by ice-hockey players relegated to a lower league. Performance of 24 ice-hockey players competing in the top league in the 2012/2013 season was analysed to this end. In the 2013/2014 season, 14 of them still played in the top league (the control group), while 10 played in the first league (the experimental group). The study was conducted one week after the end of the playoffs in the seasons under consideration...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149381/comparison-between-two-types-of-anaerobic-speed-endurance-training-in-competitive-soccer-players
#6
Magni Mohr, Peter Krustrup
The purpose of the present study was to examine the effects of additional in-season speed endurance production versus speed endurance maintenance training regimes on performance in competitive male soccer players. In a randomised controlled trial 18 male sub-elite players were exposed to additional speed endurance production (SEP) or speed endurance maintenance (SEM) training (two additional sessions/wk for 4 weeks) during the competitive season. Players performed the Yo-Yo intermittent recovery level 2 test (YYIR2) and a repeated sprint test (RST) pre- and post-intervention...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149354/investigating-the-effects-of-typical-rowing-strength-training-practices-on-strength-and-power-development-and-2-000-m-rowing-performance
#7
Thomas Ian Gee, Nicholas Caplan, Karl Christian Gibbon, Glyn Howatson, Kevin Grant Thompson
This study aimed to determine the effects of a short-term, strength training intervention, typically undertaken by club-standard rowers, on 2,000 m rowing performance and strength and power development. Twenty-eight male rowers were randomly assigned to intervention or control groups. All participants performed baseline testing involving assessments of muscle soreness, creatine kinase activity (CK), maximal voluntary contraction (leg-extensors) (MVC), static-squat jumps (SSJ), counter-movement jumps (CMJ), maximal rowing power strokes (PS) and a 2,000 m rowing ergometer time-trial (2,000 m) with accompanying respiratory-exchange and electromyography (EMG) analysis...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149346/differences-in-physiological-responses-to-interval-training-in-cyclists-with-and-without-interval-training-experience
#8
Rafal Hebisz, Paulina Hebisz, Jacek Borkowski, Marek Zatoń
The aim of this study was to determine differences in glycolytic metabolite concentrations and work output in response to an all-out interval training session in 23 cyclists with at least 2 years of interval training experience (E) and those inexperienced (IE) in this form of training. The intervention involved subsequent sets of maximal intensity exercise on a cycle ergometer. Each set comprised four 30 s repetitions interspersed with 90 s recovery periods; sets were repeated when blood pH returned to 7.3...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28135217/short-term-hypoxic-exposure-and-training-improve-maximal-anaerobic-running-test-performance
#9
Marie Oriishi, Takeo Matsubayashi, Takashi Kawahara, Yasuhiro Suzuki
The purpose of this study was to examine the effectiveness of short-term hypoxic exposure and training in the performance of competitive 400 m or 800 m runners. Fifteen female competitive 400 m and 800 m runners volunteered to participate and were assigned to either the hypoxic (n = 7) or normoxic (n = 8) group. The subjects completed 6 days of training. The hypoxic group trained and slept in normobaric hypoxia, with oxygen concentrations of 14.4% and 16.5% for training and sleep, respectively. The normoxic group trained and slept at sea level...
January 20, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28124960/-investigation-of-in-vitro-metronidazole-resistance-in-the-clinical-isolates-of-trichomonas-vaginalis
#10
Hatice Ertabaklar, Senem Yaman Karadam, Erdoğan Malatyalı, Sema Ertuğ
Trichomonas vaginalis, a flagellated, urogenital anaerobic protozoon is reported as an important cause of vaginitis with a global distribution. Although metronidazole is the primary choice of drug for the treatment of trichomoniasis, the presence of resistant isolates from many different countries highlights the need of novel drugs for the treatment. Many studies from Turkey mostly dealing with the in vitro effects of compounds and natural products against T.vaginalis have been reported, however, only one study has been encountered searching the metronidazole resistance in a single T...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28119067/changes-in-fmri-activation-in-anterior-hippocampus-and-motor-cortex-during-memory-retrieval-after-an-intense-exercise-intervention
#11
Gerd Wagner, Marco Herbsleb, Feliberto de la Cruz, Andy Schumann, Stefanie Köhler, Christian Puta, Holger W Gabriel, Jürgen R Reichenbach, Karl-Jürgen Bär
Strong evidence indicates that regular aerobic training induces beneficial effects on cognitive functions. The present controlled fMRI study was designed to investigate the impact of a short-term intense aerobic exercise on the pattern of functional activation during the retrieval of learned pair-associates in 17 young and healthy male adults compared to 17 matched control subjects. We further aimed to relate putative changes in hippocampal activation to postulated changes in the exercised-induced brain derived neurotrophic factor (BDNF)...
January 21, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28100544/oscillatory-whole-body-vibration-improves-exercise-capacity-and-physical-performance-in-pulmonary-arterial-hypertension-a-randomised-clinical-study
#12
Felix Gerhardt, Daniel Dumitrescu, Carina Gärtner, Ralf Beccard, Thomas Viethen, Tilmann Kramer, Stephan Baldus, Martin Hellmich, Eckhard Schönau, Stephan Rosenkranz
OBJECTIVE: In patients with pulmonary arterial hypertension (PAH), supportive therapies may be beneficial in addition to targeted medical treatment. Here, we evaluated the effectiveness and safety of oscillatory whole-body vibration (WBV) in patients on stable PAH therapy. METHODS: Twenty-two patients with PAH (mean PAP≥25 mm Hg and pulmonary arterial wedge pressure (PAWP)≤15 mm Hg) who were in world health organization (WHO)-Functional Class II or III and on stable PAH therapy for≥3 months, were randomised to receive WBV (16 sessions of 1-hour duration within 4 weeks) or to a control group, that subsequently received WBV...
January 18, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28096757/effects-of-ingesting-a-pre-workout-dietary-supplement-with-and-without-synephrine-for-8%C3%A2-weeks-on-training-adaptations-in-resistance-trained-males
#13
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Minye Cho, Nick Barringer, Dillon Walker, Christopher Rasmussen, Mike Greenwood, Peter S Murano, Richard B Kreider
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males. METHODS: Resistance-trained males (N = 80) were randomly assigned to supplement their diet in a double-blind manner with either a flavored placebo (PLA); a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg); or, the PWS supplement with Citrus aurantium extract containing 20 mg of synephrine (PWS + S) once per day for 8-weeks during training...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28090141/do-maximal-aerobic-power-and-blood-lactate-concentration-affect-specific-judo-fitness-test-performance-in-female-judo-athletes
#14
H Garbouj, M A Selmi, R Haj Sassi, M Haj Yahmed, K Chamari, A Chaouachi
The Special Judo Fitness Test (SJFT) has become the test most widely used by coaches and physical trainers for assessment of competitors' judo-specific physical aptitude and training programme prescription. The aim of this study was to investigate the relationship between the SJFT performance indices and both maximal aerobic power and the level of blood lactate concentrations in female judo athletes. Seventeen female judokas (age: 21.9±1.6 years, body mass: 74.6±27.4 kg, height: 164.5±8.6 cm; BMI: 27.1±8...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28067808/effects-of-beetroot-juice-supplementation-on-cardiorespiratory-endurance-in-athletes-a-systematic-review
#15
REVIEW
Raúl Domínguez, Eduardo Cuenca, José Luis Maté-Muñoz, Pablo García-Fernández, Noemí Serra-Paya, María Carmen Lozano Estevan, Pablo Veiga Herreros, Manuel Vicente Garnacho-Castaño
Athletes use nutritional supplementation to enhance the effects of training and achieve improvements in their athletic performance. Beetroot juice increases levels of nitric oxide (NO), which serves multiple functions related to increased blood flow, gas exchange, mitochondrial biogenesis and efficiency, and strengthening of muscle contraction. These biomarker improvements indicate that supplementation with beetroot juice could have ergogenic effects on cardiorespiratory endurance that would benefit athletic performance...
January 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28056364/estimation-of-biogas-and-methane-yields-in-an-uasb-treating-potato-starch-processing-wastewater-with-backpropagation-artificial-neural-network
#16
Philip Antwi, Jianzheng Li, Portia Opoku Boadi, Jia Meng, En Shi, Kaiwen Deng, Francis Kwesi Bondinuba
Three-layered feedforward backpropagation (BP) artificial neural networks (ANN) and multiple nonlinear regression (MnLR) models were developed to estimate biogas and methane yield in an upflow anaerobic sludge blanket (UASB) reactor treating potato starch processing wastewater (PSPW). Anaerobic process parameters were optimized to identify their importance on methanation. pH, total chemical oxygen demand, ammonium, alkalinity, total Kjeldahl nitrogen, total phosphorus, volatile fatty acids and hydraulic retention time selected based on principal component analysis were used as input variables, whiles biogas and methane yield were employed as target variables...
March 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28045340/the-sensitivity-of-the-alternative-maximal-accumulated-oxygen-deficit-method-to-discriminate-training-status
#17
Alessandro M Zagatto, Fabio Y Nakamura, Fabio Milioni, Willian E Miyagi, Rodrigo A B de Poli, Johnny Padulo, Nicola L Bragazzi, Marcelo Papoti
The purpose of the study was to investigate the sensitivity of an alternative maximal accumulated oxygen deficit (MAODALT) method to discriminate the "anaerobic" capacity while comparing: least trained (LT) participants (n = 12), moderately trained (MT) participants (n = 12), endurance trained (ET) participants (n = 16), and rugby (RG) players (n = 11). Participants underwent a graded exercise test on a treadmill and a supramaximal effort for assessing MAODALT. MAODALT was calculated as the sum of oxygen equivalents from the phosphagen and glycolytic metabolic pathways...
January 3, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28044282/are-prepubertal-children-metabolically-comparable-to-well-trained-adult-endurance-athletes
#18
REVIEW
Sébastien Ratel, Anthony J Blazevich
It is well acknowledged that prepubertal children have smaller body dimensions and a poorer mechanical (movement) efficiency, and thus a lower work capacity than adults. However, the scientific evidence indicates that prepubertal children have a greater net contribution of energy derived from aerobic metabolism in exercising muscle and reduced susceptibility to muscular fatigue, which makes them metabolically comparable to well-trained adult endurance athletes. For example, the relative energy contribution from oxidative and non-oxidative (i...
January 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28034783/cerebellar-insulin-igf-1-signaling-in-diabetic-rats-effects-of-exercise-training
#19
Mariana Eiras Borges, Alessandra Mussi Ribeiro, José Rodrigo Pauli, Luciana Mendonça Arantes, Eliete Luciano, Leandro Pereira de Moura, José Alexandre Curiacos de Almeida Leme, Alessandra Medeiros, Natália Oliveira Bertolini, Clarice Yoshiko Sibuya, Ricardo José Gomes
The Diabetes Mellitus (DM) is a chronic disease associated with loss of brain regions such as the cerebellum, increasing the risk of developing neurodegenerative diseases such as Parkinson's disease (PD). In the brain of diabetic and PD organisms the insulin/IGF-1 signaling is altered. Exercise training is an effective intervention for the prevention of neurodegerative diseases since it release neurotrophic factors and regulating insulin/IGF-1 signaling in the brain. This study aimed to evaluate the proteins involved in the insulin/IGF-1 pathway in the cerebellum of diabetic rats subjected to exercise training protocol...
February 3, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28033124/variances-in-strength-and-conditioning-practice-in-elite-rugby-union-between-the-northern-and-southern-hemispheres
#20
Thomas W Jones, Andrew Smith, Lindsay S Macnaughton, Duncan N French
The strength and conditioning (S&C) practices in elite Rugby Union (RU) have previously been detailed. There is also research which indicates playing styles can differ between Northern hemisphere (NH) and Southern hemisphere (SH) teams. It is not presently known if these variances in playing styles are reflected in the S&C practices of those supporting NH and SH teams. As such, the present study examines any variances in S&C practices between those supporting NH and SH elite level teams. A validated questionnaire was employed that comprised 7 sections; personal details, physical testing, strength and power development, concurrent training, unique aspects of the programme and any further relevant information regarding prescribed training programmes...
December 20, 2016: Journal of Strength and Conditioning Research
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