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https://www.readbyqxmd.com/read/29339992/effects-of-passive-and-active-rest-on-physiological-responses-and-time-motion-characteristics-in-different-small-sided-soccer-games
#1
Ersan Arslan, Utku Alemdaroglu, Yusuf Koklu, Tahir Hazir, Surhat Muniroglu, Baris Karakoc
The purpose of this study was to investigate the effects of resting regimes on physiological responses and time motion characteristics between bouts during small sided games (SSGs) in young soccer players. Sixteen players (average age 16.87 ± 0.34 years; body height 176.69 ± 3.21 cm; body mass 62.40 ± 2.59 kg; training experience 3.75 ± 0.44 years) performed four bouts 2-a-side, 3-a-side and 4-a-side games with three minutes active (SSGar: Running at 70% of HRmax) and passive (SSGpr) rest between bouts at two-day intervals...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29336645/physical-exercise-prior-to-hematopoietic-stem-cell-transplantation-a-feasibility-study
#2
Inge E P M van Haren, J Bart Staal, Carin M Potting, Femke Atsma, Thomas J Hoogeboom, Nicole M A Blijlevens, Maria W G Nijhuis-van der Sanden
PURPOSE: This study explores the feasibility and preliminary effectiveness of an exercise program in people scheduled for hematopoietic stem cell transplantation (HSCT). METHODS: In this controlled clinical trial, we compare pre-transplantation exercise to no exercise in the waiting period for an allogeneic of autologous HSCT. The supervised individually tailored exercise program (4-6 weeks) consisted of aerobic endurance, muscle strength, and relaxation exercises, administered twice a week in the period prior to HSCT...
January 16, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29334005/physiological-correlations-with-short-medium-and-long-cycling-time-trial-performance
#3
Fernando K Borszcz, Artur F Tramontin, Kristopher M de Souza, Lorival J Carminatti, Vitor P Costa
PURPOSE: Several studies have demonstrated that physiological variables predict cycling endurance performance. However, it is still unclear whether the predictors will change over different performance durations. The aim of this study was to assess the correlations between physiological variables and cycling time trials with different durations. METHODS: Twenty trained male cyclists (maximal oxygen uptake [VO2max] = 60.5 ± 5.6 mL/kg/min) performed 4 separate experimental trials during a 2-week period...
January 15, 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29331169/the-introduction-of-simple-cardiorespiratory-fitness-testing-in-overweight-obese-type-2-diabetics-a-pilot-study
#4
Ľubica Cibičková, David Karásek, Jiří Lukeš, Norbert Cibiček
BACKGROUND: Low level of cardiorespiratory fitness has been recognized as an important independent and modifiable risk factor of increased morbidity and mortality. However, in standard outpatient settings, patients are not routinely screened for fitness and advantages of such testing for the management of type 2 diabetes have not been defined. Aim To describe the toleration of a fast, simple and practicable fitness test (2-min step-in-place test) by overweight/obese type 2 diabetics and their performance indicated by 2-min step-in-place test score (STS)...
January 14, 2018: Primary Health Care Research & Development
https://www.readbyqxmd.com/read/29329155/ecological-validity-and-reliability-of-an-age-adapted-endurance-field-test-in-young-male-soccer-players
#5
Carlo Castagna, Peter Krustrup, Stefano D'Ottavio, Carlo Pollastro, Andrea Bernardini, Susana Cristina Araújo Póvoas
The purpose of this study was to examine the reliability and the association with relevant match activities (ecological validity) of an age-adapted field test for intermittent high-intensity endurance known as Yo-Yo intermittent recovery level 1 children test (YYIR1C) in young male soccer players. Twenty-eight young male outfield soccer players (age 11.1±0.9 years, height 142±4.4 cm, body mass 37.0±5.9 kg) with at least 2 years of experience in soccer competitions were tested twice using YYIR1C and an age-adapted competitive small-sided game (i...
January 11, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29315579/muscle-molecular-adaptations-to-endurance-exercise-training-are-conditioned-by-glycogen-availability-a-proteomics-based-analysis-in-the-mcardle-mouse-model
#6
Carmen Fiuza-Luces, Alejandro Santos-Lozano, Francisco Llavero, Rocío Campo, Gisela Nogales-Gadea, Jorge Díez Bermejo, Carlos Balandrón, África González-Murillo, Joaquín Arenas, Miguel A Martín, Antoni L Andreu, Tomàs Pinós, Beatriz G Gálvez, Juan A López, Jesús Vázquez, José L Zugaza, Alejandro Lucia
McArdle disease is an inborn disorder of skeletal muscle glycogen metabolism that results in blockade of glycogen breakdown due to mutations in the myophosphorylase gene. We recently developed a mouse model carrying the homozygous p.R50X common human mutation (McArdle mouse), facilitating the study of how glycogen availability affects muscle molecular adaptations to endurance exercise training. Using quantitative differential analysis by liquid chromatography with tandem-mass spectrometry, we analysed the quadriceps muscle proteome of 16-week-old McArdle (n = 5) and wild-type (WT) (n = 4) mice previously subjected to 8-week moderate-intensity treadmill training or to an equivalent control (no training) period...
January 7, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29308847/comprehensive-overview-of-haemoglobin-mass-and-blood-volume-in-elite-athletes-across-a-wide-range-of-different-sporting-disciplines
#7
Irina Zelenkova, Sergey Zotkin, Pavel Korneev, Sergey Koprov, Alexandr Grushin
BACKGROUND: Comparison of total haemoglobin mass (tHb-mass) and blood volume (BV) across elite athletes different sporting specialisations. METHODS: 222 members of Russian national teams from 12 different disciplines and non Olympic competitive season for tHb-mass, BV, plasma volume (PV), haemoglobin concentration (Hb), and hematocrit level (Hct) determination. tHb-mass measurements were performed using CO-rebreathing technique, alongside Hb and Hct (capillary blood)...
January 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29288068/regular-exercisers-have-stronger-pelvic-floor-muscles-than-non-regular-exercisers-at-midpregnancy
#8
Kari Bø, Marie Ellstrøm Engh, Gunvor Hilde
BACKGROUND: Today, all healthy pregnant women are encouraged to be physically active throughout pregnancy, with recommendations to participate in at least 30 min of aerobic activity on most days of the week, in addition to perform strength training of the major muscle groups 2-3 days per week, and also pelvic floor muscle training. There is, however, an ongoing debate whether general physical activity enhances or declines pelvic floor muscle function. OBJECTIVES: To compare vaginal resting pressure, pelvic floor muscle strength and endurance in regular exercisers (exercise ≥ 30 minutes ≥ 3 times per week) and non-exercisers at mid-pregnancy...
December 26, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29284237/effect-of-3-year-education-in-the-main-fire-service-school-on-the-fitness-level-of-students
#9
Andrzej Tomczak, Jerzy Bertrandt, Anna Kłos, Wiesława Szymańska, Wanda Stankiewicz
INTRODUCTION AND OBJECTIVE: The aim of the study was to determine changes in the fitness level among students of the Main Fire Service School during 3-year's education. MATERIAL AND METHODS: A total of 75 male and 5 female students took part in the study. Fitness level measurements were carried out before beginning the studies (Measurement 0) and after the 1st, 2nd and 3rd years at the school (Measurement 1, 2, 3). The following tests were performed to estimate level of physical fitness for men: pull-ups on a bar, a 50 m sprint and 1,000 m run, and for women: sit-ups, medical ball (2 kg) throw from above the head and a 4 x10 m shuttle run...
December 23, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/29284165/lactate-threshold-as-a-measure-of-aerobic-metabolism-in-resistance-exercise
#10
Raúl Domínguez, José Luis Maté-Muñoz, Noemí Serra-Paya, Manuel Vicente Garnacho-Castaño
In resistance training, load intensity is usually calculated as the percentage of a maximum repetition (1RM) or maximum number of possible repetitions (% of 1RM). Some studies have proposed a lactate threshold (LT) intensity as an optimal approach for concurrent training of cardiorespiratory endurance and muscle strength, as well as an alternative in resistance training. The objective of the present study was to analyze the results obtained in research evaluating the use of LT in resistance training. A keyword and search tree strategy identified 14 relevant articles in the Dialnet, Elsevier, Medline, Pubmed, Scopus and Web of Science databases...
December 28, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29246653/myostatin-and-adipokines-the-role-of-the-metabolically-unhealthy-obese-phenotype-in-muscle-function-and-aerobic-capacity-in-young-adults
#11
Lívia Pinheiro Carvalho, Renata Pedrolongo Basso-Vanelli, Luciana Di Thommazo-Luporini, Renata Gonçalves Mendes, Manoel Carneiro Oliveira-Junior, Rodolfo de Paula Vieira, José Carlos Bonjorno-Junior, Cláudio Ricardo Oliveira, Rafael Luporini, Audrey Borghi-Silva
Obesity is often associated with metabolic disorders. However, some obese people can present a metabolically healthy phenotype, despite having excessive body fat. Obesity-related cytokines, such as myostatin (MSTN), leptin (LP) and adiponectin (ADP) appear to be key factors for the regulation of muscle and energy metabolism. Our aim was to compare lipid, glucose-insulin and inflammatory (tumor necrosis factor alpha; TNF-α) profiles, muscle function, energy expenditure and aerobic capacity between healthy normal-weight (NW) adults, metabolically healthy obese (MHO) and metabolically unhealthy obese (MUHO) adults; to study the associations between these outcomes and the cytokines MSTN, ADP, LP; and to establish cutoffs for MSTN and LP/ADP to identify the MUHO phenotype...
December 12, 2017: Cytokine
https://www.readbyqxmd.com/read/29238247/effects-of-hypoxic-training-versus-normoxic-training-on-exercise-performance-in-competitive-swimmers
#12
Hun-Young Park, Kiwon Lim
In swimming competition, optimal swimming performance is characterized by a variety of interchangeable components, such as aerobic exercise capacity, anaerobic power and muscular function. Various hypoxic training methods would potentiate greater performance improvements compared to similar training at sea-level. Therefore, this study aimed to evaluate the effects of six-weeks of hypoxic training on exercise performance in moderately trained competitive swimmers. Twenty swimmers were equally divided into a normoxic training group (n = 10) for residing and training at sea-level (PIO2 = 149...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29224960/persons-with-secondary-progressive-and-relapsing-remitting-multiple-sclerosis-reveal-different-responses-of-tryptophan-metabolism-to-acute-endurance-exercise-and-training
#13
Jens Bansi, Christina Koliamitra, Wilhelm Bloch, Niklas Joisten, Alexander Schenk, Matthew Watson, Jan Kool, Dawn Langdon, Ulrik Dalgas, Jürg Kesselring, Philipp Zimmer
Disturbances in Tryptophan metabolism play a crucial role in multiple sclerosis (MS). Exercise is suspected to counteract the progress of MS and its side effects. Current research suggests alterations of Tryptophan metabolism in healthy individuals in response to exercise. We investigated the influence of acute aerobic exercise and training on Tryptophan metabolism in 57 inpatients with relapsing remitting ((RRMS) n=33) and secondary progressive ((SPMS) n=24) MS. Serotonin increased after training, whereas the kynurenine pathway was only activated in persons with RRMS...
December 6, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29211716/atmospheric-trace-gases-support-primary-production-in-antarctic-desert-surface-soil
#14
Mukan Ji, Chris Greening, Inka Vanwonterghem, Carlo R Carere, Sean K Bay, Jason A Steen, Kate Montgomery, Thomas Lines, John Beardall, Josie van Dorst, Ian Snape, Matthew B Stott, Philip Hugenholtz, Belinda C Ferrari
Cultivation-independent surveys have shown that the desert soils of Antarctica harbour surprisingly rich microbial communities. Given that phototroph abundance varies across these Antarctic soils, an enduring question is what supports life in those communities with low photosynthetic capacity. Here we provide evidence that atmospheric trace gases are the primary energy sources of two Antarctic surface soil communities. We reconstructed 23 draft genomes from metagenomic reads, including genomes from the candidate bacterial phyla WPS-2 and AD3...
December 6, 2017: Nature
https://www.readbyqxmd.com/read/29207976/demographic-differences-in-and-correlates-of-perceived-body-image-discrepancy-among-urban-adolescent-girls-a-cross-sectional-study
#15
Lorraine B Robbins, Jiying Ling, Kenneth Resnicow
BACKGROUND: Understanding factors related to girls' body image discrepancy, which is the difference between self-perceived current or actual and ideal body size, is important for addressing body-related issues and preventing adverse sequelae. Two aims were to: 1) examine demographic differences in body image discrepancy; and 2) determine the association of body image discrepancy with weight status, percent body fat, physical activity, sedentary behavior, and cardiovascular (CV) fitness among young adolescent girls...
December 6, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/29205923/home-based-interval-training-increases-endurance-capacity-in-adults-with-complex-congenital-heart-disease
#16
Camilla Sandberg, Magnus Hedström, Karin Wadell, Mikael Dellborg, Anders Ahnfelt, Anna-Klara Zetterström, Amanda Öhrn, Bengt Johansson
OBJECTIVE: The beneficial effects of exercise training in acquired heart failure and coronary artery disease are well known and have been implemented in current treatment guidelines. Knowledge on appropriate exercise training regimes for adults with congenital heart disease is limited, thus further studies are needed. The aim of this study was to examine the effect of home-based interval exercise training on maximal endurance capacity and peak exercise capacity. DESIGN: Randomized controlled trial...
December 4, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29203287/effects-of-endurance-training-on-serum-lipids
#17
REVIEW
Kati Fikenzer, Sven Fikenzer, Ulrich Laufs, Christian Werner
BACKGROUND AND AIMS: Physical activity is recommended as part of the lifestyle modification for the treatment of hyperlipidemia, however, the literature reports heterogeneous quantitative effects of exercise on serum lipids. We therefore reviewed the effects of aerobic exercise on serum lipids with special focus on the training effectiveness. METHODS: Data regarding effects of endurance training (ET) on total Cholesterol (TC), LDL-Cholesterol (LDL-C), HDL-Cholesterol (HDL-C) and triglycerides (TG) were evaluated in a selective literature search...
December 1, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/29190545/six-weeks-of-combined-aerobic-and-resistance-exercise-using-outdoor-exercise-machines-improves-fitness-insulin-resistance-and-chemerin-in-the-korean-elderly-a-pilot-randomized-controlled-trial
#18
Dong-Il Kim, Dong Hoon Lee, Sunghyun Hong, Sung-Won Jo, Young-Shin Won, Justin Y Jeon
BACKGROUND: The aim of this study was to investigate the effect of a six-week-long exercise program using outdoor exercise equipment on fitness, insulin resistance and adipocytokines among Korean elderly. METHODS: A total of 47 participants were randomized into one of the following three groups; control, resistance exercise or combined exercise (aerobic and resistance exercise). The resistance exercise group completed three resistance types of exercise. The combined exercise group completed five exercises, including three resistance types of exercise and two aerobic types of exercise...
November 23, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29185134/when-is-the-best-moment-to-apply-photobiomodulation-therapy-pbmt-when-associated-to-a-treadmill-endurance-training-program-a-randomized-triple-blinded-placebo-controlled-clinical-trial
#19
Eduardo Foschini Miranda, Shaiane Silva Tomazoni, Paulo Roberto Vicente de Paiva, Henrique Dantas Pinto, Denis Smith, Larissa Aline Santos, Paulo de Tarso Camillo de Carvalho, Ernesto Cesar Pinto Leal-Junior
Photobiomodulation therapy (PBMT) employing low-level laser therapy (LLLT) and/or light emitting diode therapy (LEDT) has emerged as an electrophysical intervention that could be associated with aerobic training to enhance beneficial effects of aerobic exercise. However, the best moment to perform irradiation with PBMT in aerobic training has not been elucidated. The aim of this study was to assess the effects of PBMT applied before and/or after each training session and to evaluate outcomes of the endurance-training program associated with PBMT...
November 29, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29184265/long-term-low-intensity-endurance-exercise-along-with-blood-flow-restriction-improves-muscle-mass-and-neuromuscular-junction-compartments-in-old-rats
#20
Mohammad-Ali Bahreini Pour, Siyavash Joukar, Fariborz Hovanloo, Hamid Najafipour
Background: During the aging process, muscle atrophy and neuromuscular junction remodeling are inevitable. The present study aimed to clarify whether low-intensity aerobic exercise along with limb blood-flow restriction (BFR) could improve aging-induced muscle atrophy and nicotinic acetylcholine receptors (nAChRs) at the neuromuscular junction. Methods: Forty-eight male Wistar rats, aged 23-24 months, were randomly divided into control, sham (Sh: subjected to surgery without BFR), BFR (subjected to BFR), exercise (Ex: subjected to 10 weeks of low-intensity exercise), Sh+Ex, and BFR+Ex groups...
November 2017: Iranian Journal of Medical Sciences
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