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https://www.readbyqxmd.com/read/29346167/new-reference-values-for-cardiopulmonary-exercise-testing-in-children
#1
Joel Blanchard, Samuel Blais, Philippe Chetaille, Michele Bisson, François P Counil, Thelma H Girard, Jade Berbari, Pierre Boulay, Frederic Dallaire
INTRODUCTION: Cardiopulmonary exercise testing (CPET) is an essential tool to assess cardiorespiratory fitness (CRF) in children. There is a paucity of adequate pediatric reference values that are independent of body size and pubertal stage. The purpose of this study is to provide Z score equations for several maximal and sub-maximal CRF parameters derived from a prospectively recruited sample of healthy children. METHODS: In this cross-sectional multicenter study, we prospectively recruited 228 healthy children aged 12 to 17 years old in local schools...
January 17, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29345841/effects-of-high-impact-exercise-on-the-physical-properties-of-bones-of-ovariectomized-rats-fed-to-a-high-protein-diet
#2
Roberta Carminati Shimano, Gabriela Rezende Yanagihara, Ana Paula Macedo, Jessica Suzuki Yamanaka, Antônio Carlos Shimano, João Manuel R S Tavares, João Paulo Mardegan Issa
The aim of this study was to evaluate the effects of high-impact physical exercise as a prophylactic and therapeutic means in osteopenic bones of rats submitted to ovariectomy and protein diet intake. A total of 64 Wistar rats were divided into eight groups (n=8 each), being: OVX, ovx, standard diet and sedentary; OVXE, ovx, standard diet and jump; OVXP, ovx, high-protein diet and sedentary; and OVXEP, ovx, high-protein diet and jump; SH, sham, standard diet and sedentary; SHE, sham, standard diet and jump; SHP, sham, high-protein diet and sedentary; and SHEP, sham, high-protein-diet and jump...
January 18, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29345224/therapy-interventions-for-children-with-neurodisabilities-a-qualitative-scoping-study
#3
Bryony Beresford, Susan Clarke, Jane Maddison
BACKGROUND: Therapy interventions emerged four times in the top 10 research priorities in a James Lind Alliance research prioritisation exercise for children with neurodisabilities (Morris C, Simkiss D, Busk M, Morris M, Allard A, Denness J, et al. Setting research priorities to improve the health of children and young people with neurodisability: a British Academy of Childhood Disability-James Lind Alliance Research Priority Setting Partnership. BMJ Open 2015;5:e006233). The National Institute for Health Research (NIHR) commissioned this study as part of an information-gathering exercise in response to this...
January 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29345213/matcha-green-tea-drinks-enhance-fat-oxidation-during-brisk-walking-in-females
#4
Mark Elisabeth Theodorus Willems, Mehmet Akif Şahin, Matthew David Cook
Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha green tea drinks on metabolic, physiological and perceived intensity responses during brisk walking. Thirteen females (age: 27±8 yr, body mass: 65±7 kg, height: 166±6 cm) volunteered. Resting metabolic equivalent (1-MET) was measured using Douglas bags (1-MET: 3.4±0.3 ml·kg-1·min-1)...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29344913/cardiac-basal-autophagic-activity-and-increased-exercise-capacity
#5
Fang-Hui Li, Tao Li, Ying-Min Su, Jing-Yi Ai, Rui Duan, Timon Cheng-Yi Liu
To investigate whether high-intensity interval training (HIIT) and continuous moderate-intensity training (CMT) have different impacts on exercise performance and cardiac function and to determine the influence of these exercise protocols on modulating basal autophagy in the cardiac muscle of rats. Rats were assigned to three groups: sedentary control (SC), CMT, and HIIT. Total exercise volume and mean intensity were matched between the two protocols. After a 10-week training program, rats were evaluated for exercise performance, including exercise tolerance and grip strength...
January 17, 2018: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/29344422/the-effects-of-physical-training-are-varied-and-occur-in-an-exercise-type-dependent-manner-in-elderly-men
#6
Mari L Sbardelotto, Giulia S Pedroso, Fernanda T Pereira, Helen R Soratto, Stella Ms Brescianini, Pauline S Effting, Anand Thirupathi, Renata T Nesi, Paulo Cl Silveira, Ricardo A Pinho
Regular exercise can decrease the deleterious effects of aging and limit the development and progression of chronic disease in elderly people, depending on the type, intensity, frequency, and duration of exercise. This study aimed to investigate the potential protective effects of different physical training programs on oxidative stress parameters and inflammatory and neurotrophic mediators in the serum of elderly men. Healthy male volunteers [60 to 80 years; n=55] were divided into four groups: control [Ctr, n=14], aerobic training on dry land [ATdl, n=12]; and combined training on dry land [CTdl, n=12] or in water [CTw, n=17]...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29344401/protocol-for-moving-on-a-randomized-controlled-trial-to-increase-outcome-expectations-and-exercise-among-breast-cancer-survivors
#7
Rachel Hirschey, Gretchen Kimmick, Marilyn Hockenberry, Ryan Shaw, Wei Pan, Isaac Lipkus
Aim: The aim of this study was to test the feasibility and fidelity of an intervention, Moving On, aimed to increase outcome expectations OEs (i.e. what one expects to obtain or avoid as a result of a behaviour) and exercise among breast cancer survivors. Design: Randomized controlled trial. Methods: Intervention arm participants will be given a theory-guided booklet that was co-created by the research team and three physically active breast cancer survivors who exercise to manage late and long-term treatment effects...
January 2018: Nursing Open
https://www.readbyqxmd.com/read/29342097/time-domain-near-infrared-spectroscopy-device-for-monitoring-muscle-oxidative-metabolism-custom-probe-and-in-vivo-applications
#8
Rebecca Re, Ileana Pirovano, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli
Measurement of muscle oxidative metabolism is of interest for monitoring the training status in athletes and the rehabilitation process in patients. Time domain near infrared spectroscopy (TD NIRS) is an optical technique that allows the non-invasive measurement of the hemodynamic parameters in muscular tissue: concentrations of oxy- and deoxy-hemoglobin, total hemoglobin content, and tissue oxygen saturation. In this paper, we present a novel TD NIRS medical device for muscle oxidative metabolism. A custom-printed 3D probe, able to host optical elements for signal acquisition from muscle, was develop for TD NIRS in vivo measurements...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29341814/utilizing-a-rat-delayed-implantation-model-to-teach-integrative-endocrinology-and-reproductive-biology
#9
Rodney D Geisert, Michael F Smith, Amanda L Schmelzle, Jonathan A Green
In this teaching laboratory, the students are directed in an exercise that involves designing and performing an experiment to determine estrogen's role in regulating delayed implantation (diapause) in female rats. To encourage active participation by the students, a discussion question is provided before the laboratory exercise in which each student is asked to search the literature and provide written answers to questions and to formulate an experiment to test the role of ovarian estrogen in inducing implantation in female rats...
March 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29340006/the-impact-of-the-progressive-efficiency-test-on-a-rowing-ergometer-on-white-blood-cells-distribution-and-clinical-chemistry-changes-in-paralympic-rowers-during-the-preparatory-stage-before-the-paralympic-games-in-rio-2016-a-case-report
#10
Robert Nowak, Rafał Buryta, Krzysztof Krupecki, Tomasz Zając, Marek Zawartka, Patrizia Proia, Dorota Kostrzewa-Nowak
There is a large gap in knowledge regarding research on post-exercise blood changes in disabled athletes. There are relatively few data on adaptive mechanisms to exercise in disabled athletes, including disabled rowers. Two rowers from a Polish adaptive rowing settle TAMix2x that qualified for the Paralympic Games in Rio, 2016 took part in this study. They performed a progressive test on a rowing ergometer until exhaustion. The cardiorespiratory fitness measures, complete blood count, white blood cells' distribution and 30 clinical chemistry variables describing laboratory diagnostic profiles and general health were determined...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29340005/comparison-of-aerobic-performance-testing-protocols-in-elite-male-wheelchair-basketball-players
#11
Bartosz Molik, Andrzej Kosmol, Natalia Morgulec-Adamowicz, Judit Lencse-Mucha, Anna Mróz, Karol Gryko, Jolanta Marszałek
In wheelchair sports, aerobic performance is commonly assessed with the use of an arm crank ergometer (ACE), a wheelchair ergometer (WCE) or a wheelchair treadmill (WCT). There are different protocols to identify peak oxygen uptake in wheelchair sports; however, only a few protocols have been applied to evaluate these conditions in wheelchair basketball players. The purpose of this study was to compare physiological responses during maximal exercise testing with the use of ACE and WCT in wheelchair basketball players...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339005/effects-of-exercise-and-enrichment-on-behaviour-in-cd-1-mice
#12
Amiirah B Aujnarain, Owen D Luo, Natalie Taylor, Jonathan K Y Lai, Jane A Foster
A host of scholarly work has characterized the positive effects of exercise and environmental enrichment on behaviour and cognition in animal studies. The purpose of this study was to investigate the uptake and longitudinal impact of exercise and enrichment on the behavioural phenotype of male and female CD-1 mice. CD-1 mice housed in standard (STD) or exercise and enrichment (EE) conditions post-weaning were tested in the 3-chamber sociability test, open field, and elevated plus maze and exercise activity was monitored throughout the enrichment protocol...
January 12, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29337829/estimation-of-repetitions-to-failure-for-monitoring-resistance-exercise-intensity-building-a-case-for-application
#13
Daniel A Hackett, Stephen P Cobley, Mark Halaki
The purpose of this study was to 1) examine the accuracy of Estimated Repetitions to Failure (ERF) during resistance exercise between two sessions, and 2) compare ERF to RPE (Rating of Perceived Exertion) for determining proximity to momentary failure. Forty-eight adults with recreational resistance training experience performed 3 sets of 10 repetitions at 70% 1RM and 80% 1RM for the chest press and leg press respectively. At the completion of each set, participants reported their ERF and then continued repetitions to failure to determine actual repetitions to failure (ARF)...
January 15, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29336621/beta-alanine-does-not-enhance-the-effects-of-resistance-training-in-older-adults
#14
Christopher H Bailey, Joseph F Signorile, Arlette C Perry, Kevin A Jacobs, Nicholas D Myers
To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60-82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15-25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM)...
January 16, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29335797/high-intensity-aerobic-interval-training-can-lead-to-improvement-in-skeletal-muscle-power-among-in-hospital-patients-with-advanced-heart-failure
#15
Masanobu Taya, Eisuke Amiya, Masaru Hatano, Hisataka Maki, Daisuke Nitta, Akihito Saito, Masaki Tsuji, Yumiko Hosoya, Shun Minatsuki, Astuko Nakayama, Takayuki Fujiwara, Yuto Konishi, Kazuhiko Yokota, Masafumi Watanabe, Hiroyuki Morita, Nobuhiko Haga, Issei Komuro
This study investigated the effectiveness and safety of interval training during in-hospital treatment of patients with advanced heart failure. Twenty-four consecutive patients with advanced symptomatic heart failure who were referred for cardiac transplant evaluation were recruited. After performing aerobic exercise for approximate intensity, high-intensity interval training (HIIT) was performed. The protocol consisted of 3 or 4 sessions of 1-min high-intensity exercise aimed at 80% of peak VO2 or 80% heart rate reserve, followed by 4-min recovery periods of low intensity...
January 15, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29335013/fit-for-function-study-protocol-for-a-randomized-controlled-trial
#16
Julie Richardson, Ada Tang, Gordon Guyatt, Lehana Thabane, Feng Xie, Demetrios Sahlas, Robert Hart, Rebecca Fleck, Genevieve Hladysh, Louise Macrae
BACKGROUND: The current state of evidence suggests that community-based exercise programs are beneficial in improving impairment, function, and health status, and are greatly needed for persons with stroke. However, limitations of these studies include risk of bias, feasibility, and cost issues. METHODS/DESIGN: This single-blinded, randomized controlled trial (RCT) of 216 participants with stroke will compare the effectiveness of a 12-week YMCA community-based wellness program (FIT for FUNCTION) specifically designed for community-dwelling persons with stroke to persons who receive a standard YMCA membership...
January 15, 2018: Trials
https://www.readbyqxmd.com/read/29334992/the-efficacy-of-a-multimodal-physical-activity-intervention-with-supervised-exercises-health-coaching-and-an-activity-monitor-on-physical-activity-levels-of-patients-with-chronic-nonspecific-low-back-pain-physical-activity-for-back-pain-payback-trial-study
#17
Crystian B Oliveira, Márcia R Franco, Chris G Maher, Anne Tiedemann, Fernanda G Silva, Tatiana M Damato, Michael K Nicholas, Diego G D Christofaro, Rafael Z Pinto
BACKGROUND: Physical activity plays an important role in the management of chronic low back pain (LBP). Engaging in an active lifestyle is associated with a better prognosis. Nevertheless, there is evidence to suggest that patients with chronic LBP are less likely to meet recommended physical activity levels. Furthermore, while exercise therapy has been endorsed by recent clinical practice guidelines, evidence from systematic reviews suggests that its effect on pain and disability are at best moderate and not sustained over time...
January 15, 2018: Trials
https://www.readbyqxmd.com/read/29334615/hemodynamic-and-metabolic-responses-to-self-paced-and-ramp-graded-exercise-testing-protocols
#18
Nicholas M Beltz, Fabiano Amorim, Ann L Gibson, Jeffrey M Janot, Len Kravitz, Christine M Mermier, Nathan Cole, Terence A Moriarty, Tony P Nunez, Sam Trigg, Lance Dalleck
PURPOSE: Recent examinations have shown lower maximal oxygen uptake (VO2max) during traditional ramp (RAMP) compared to self-paced (SPV) graded exercise testing (GXT) attributed to differences in cardiac ouput. The current study examined the differences in hemodyamic and metabolic responses between RAMP and SPV during treadmill exercise. METHODS: Sixteen recreationally trained men (23.7±3.0 yrs) completed two separate treadmill GXT protocols. SPV consisted of five 2-min stages (10 min total) of increasing speed clamped by the Borg RPE6-20 scale...
January 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29334582/carbohydrate-mouth-rinsing-does-not-prevent-the-decline-in-maximal-strength-following-fatiguing-exercise
#19
Christopher D Black, Daniel J Schubert, Marcin K Szczyglowski, Joshua D Wren
Carbohydrate (CHO) rinsing has been shown to attenuate the decline of maximal voluntary contractions (MVC) following fatiguing exercise-perhaps via a central mechanism. This study sought to determine the effect of a CHO rinse on MVC, voluntary activation, and contractile properties following fatiguing exercise. Thirteen adults participated in a double-blind, cross-over study. MVC of the dominant knee extensors was assessed and voluntary activation (%VA) was determined using twitch-interpolation. Participants then held 50% of MVC until volitional fatigue followed by a 20s rinse with a solution of 8% maltodextrin (CHO) or placebo (PLA)...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29334309/effects-of-resisted-sprint-training-on-sprinting-ability-and-change-of-direction-speed-in-professional-soccer-players
#20
Saulo Gil, Renato Barroso, Everton Crivoi do Carmo, Irineu Loturco, Ronaldo Kobal, Valmor Tricoli, Carlos Ugrinowitsch, Hamilton Roschel
Resisted sprint training consists of performing overloaded sprints, which may produce greater effects than traditional sprint training. We compared a resisted sprint training with overload control versus an unresisted sprint training program on performance in soccer players. Eighteen elite athletes were randomly assigned to resisted (RST) or unresisted sprint training protocol (UR). Before and after a 6-week training period, sprinting ability, change of direction speed (COD), vertical jumps (SJ and CMJ), mean power (MP) and mean propulsive power (MPP) at distinct loads were assessed...
January 15, 2018: Journal of Sports Sciences
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