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https://www.readbyqxmd.com/read/27924138/the-effects-of-a-multi-ingredient-supplement-on-markers-of-muscle-damage-and-inflammation-following-downhill-running-in-females
#1
Jessica L Köhne, Michael J Ormsbee, Andrew J McKune
BACKGROUND: The effects of a multi-ingredient performance supplement (MIPS) on markers of inflammation and muscle damage, perceived soreness and lower limb performance are unknown in endurance-trained female athletes. The purpose of this study was to determine the impact of MIPS (NO-Shotgun®) pre-loaded 4 weeks prior to a single-bout of downhill running (DHR) on hsC-Reactive Protein (hsCRP), interleukin (IL)-6, creatine kinase (CK), muscle soreness, lower limb circumferences and performance...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27918660/vo2-at-maximal-and-supramaximal-intensities-lessons-to-high-interval-training-in-swimming
#2
Ana Sousa, João Paulo Vilas-Boas, Ricardo J Fernandes, Pedro Figueiredo
PURPOSE: To establish appropriate work intensity for interval training that would elicit maximal oxygen uptake (VO2max) for well-trained swimmers. METHODS: 12 male competitive swimmers completed an incremental protocol to determine the minimum velocity at VO2max (vVO2max) and, in randomized order, three square wave exercises from rest to 95, 100 and 105% of vVO2max. Temporal aspects of the VO2 response were examined in these latter. RESULTS: Swimming at 105% of vVO2max took less (p<0...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27909408/reliability-validity-and-usefulness-of-30-15-intermittent-fitness-test-in-female-soccer-players
#3
Nedim Čović, Eldin Jelešković, Haris Alić, Izet Rađo, Erduan Kafedžić, Goran Sporiš, Daniel T McMaster, Zoran Milanović
PURPOSE: The aim of this study was to examine the reliability, validity and usefulness of the 30-15IFT in competitive female soccer players. METHODS: Seventeen elite female soccer players participated in the study. A within subject test-retest study design was utilized to assess the reliability of the 30-15 intermittent fitness test (IFT). Seven days prior to 30-15IFT, subjects performed a continuous aerobic running test (CT) under laboratory conditions to assess the criterion validity of the 30-15IFT. End running velocity (VCT and VIFT), peak heart rate (HRpeak) and maximal oxygen consumption (VO2max) were collected and/or estimated for both tests...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27900177/high-intensity-interval-training-to-improve-fitness-in-children-with-cerebral-palsy
#4
Reidun Lauglo, Torstein Vik, Torarin Lamvik, Dorthe Stensvold, Ane-Kristine Finbråten, Trine Moholdt
AIM: To evaluate effects of high-intensity interval training (HIT) on aerobic exercise capacity, quality of life, and body composition in children with cerebral palsy (CP). METHODS: This was a baseline control trial. Children with CP, Gross Motor Function Classification System (GMFCS) levels I-IV, and age 10-17 years were included. The primary outcome, peak, and submaximum oxygen uptake (VO2peak, VO2submax) were measured at enrolment to the study (T0), after a pretraining period (T1), and after HIT (T2)...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900150/sex-differences-in-the-effects-of-12%C3%A2-weeks-sprint-interval-training-on-body-fat-mass-and-the-rates-of-fatty-acid-oxidation-and-vo2max-during-exercise
#5
Liam Bagley, Mark Slevin, Steven Bradburn, Donghui Liu, Chris Murgatroyd, George Morrissey, Michael Carroll, Mathew Piasecki, William S Gilmore, Jamie S McPhee
BACKGROUND: The purpose of this study was to examine whether very short duration, very high intensity sprint interval training (SIT) leads to loss of body fat mass in association with improvements to VO2max and fatty acid oxidation, and to assess the extent of sex dimorphism in these physiological responses. METHODS: A total of 24 men and 17 women (mean (SEM) age: 39 (±2) years; body mass index 24.6 (0.6)) completed measurements of the maximal rate of oxygen uptake (VO2max) and fatty acid oxidation (FATmax)...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27899499/differential-patterns-of-impaired-cardiorespiratory-fitness-and-cardiac-autonomic-dysfunction-in-recently-diagnosed-type-1-and-type-2-diabetes
#6
Martin Röhling, Alexander Strom, Gidon Bönhof, Sonja Püttgen, Kálmán Bódis, Karsten Müssig, Julia Szendrödi, Daniel Markgraf, Stefan Lehr, Michael Roden, Dan Ziegler
OBJECTIVE: Both impaired cardiorespiratory fitness (CRF) and heart rate variability (HRV) are predictors of mortality, but their relative roles in recent-onset diabetes are unknown. We determined to which extent CRF and HRV are reduced and interrelated in recent-onset diabetes. RESEARCH DESIGN AND METHODS: Participants from the German Diabetes Study with type 1 (n = 163) or type 2 (n = 188) diabetes with known diabetes duration <1 year and two age-matched glucose-tolerant control groups (n = 40 each) underwent spiroergometry and HRV assessment during a hyperinsulinemic-euglycemic clamp...
November 29, 2016: Diabetes Care
https://www.readbyqxmd.com/read/27890490/fragmentation-of-daily-rhythms-associates-with-obesity-and-cardiorespiratory-fitness-in-adolescents-the-helena-study
#7
Marta Garaulet, Antonio Martinez-Nicolas, Jonatan R Ruiz, Kenn Konstabel, Idoia Labayen, Marcela González-Gross, Ascensión Marcos, Dénes Molnar, Kurt Widhalm, Jose Antonio Casajús, Stefaan De Henauw, Anthony Kafatos, Christina Breidenassel, Michael Sjöström, Manuel J Castillo, Luis A Moreno, Juan A Madrid, Francisco B Ortega
BACKGROUND & AIMS: Chronobiology studies periodic changes in living organisms and it has been proposed as a promising approach to investigate obesity. We analyze the association of the characteristics of the rest-activity rhythms with obesity, cardiorespiratory fitness and metabolic risk in adolescents from nine European countries. METHODS: 1044 adolescents (12.5-17.5 y) were studied. Circadian health was evaluated by actigraphy with accelerometers (Actigraph GT1M)...
November 5, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27888214/cardiorespiratory-fitness-and-death-from-cancer-a-42-year-follow-up-from-the-copenhagen-male-study
#8
Magnus Thorsten Jensen, Andreas Holtermann, Hans Bay, Finn Gyntelberg
OBJECTIVES: Poor cardiorespiratory fitness (CRF) is associated with death from cancer. If follow-up time is short, this association may be confounded by subclinical disease already present at the time of CRF assessment. This study investigates the association between CRF and death from cancer and any cause with 42 years and 44 years of follow-up, respectively. SETTING, PARTICIPANTS AND MAIN OUTCOME MEASURES: Middle-aged, employed and cancer-free Danish men from the prospective Copenhagen Male Study, enrolled in 1970-1971, were included...
November 25, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27878634/relationship-between-habitual-exercise-and-performance-on-cardiopulmonary-exercise-testing-differs-between-children-with-single-and-biventricular-circulations
#9
Michael L O'Byrne, Sanyukta Desai, Megan Lane, Michael McBride, Stephen Paridon, Elizabeth Goldmuntz
Increasing habitual exercise has been associated with improved cardiopulmonary exercise testing (CPET) performance, specifically maximal oxygen consumption in children with operatively corrected congenital heart disease. This has not been studied in children following Fontan palliation, a population in whom CPET performance is dramatically diminished. A single-center cross-sectional study with prospective and retrospective data collection was performed that assessed habitual exercise preceding a clinically indicated CPET in children and adolescents with Fontan palliation, transposition of the great arteries following arterial switch operation (TGA), and normal cardiac anatomy without prior operation...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27869381/-analysis-of-adiposity-and-physical-fitness-in-young-colombian-students
#10
Constanza Palomino-Devia, Fernando Manuel Otero-Saborido, José Antonio González-Jurado
Body mass index and physical fitness are important markers of a healthy life style. Objective: To analyze adiposity and physical fitness in young students from public schools in Armenia, Colombia, and examine differences between sex and age groups. Materials and methods: We analyzed 1,150 students: 46.6% (n=536) males and 53.4% (n=614) females, with an age range of 10 to 20 years (15.45 ± 2.52). Physical fitness was evaluated by the Course-Navette test, the Horizontal Jump test, the 20-meter run test and the Sit-and-Reach test...
September 1, 2016: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/27867416/acute-affective-responses-and-frontal-electroencephalographic-asymmetry-to-prescribed-and-self-selected-exercise
#11
Eduardo Lattari, Eduardo Portugal, Renato Sobral Monteiro Junior, Bruno Ribeiro Ramalho Oliveira, Tony Meireles Santos, Gioia Mura, Federica Sancassiani, Eric Murillo-Rodriguez, Oscar Arias-Carrión, Henning Budde, Nuno Barbosa Rocha, Sérgio Machado
OBJECTIVE: Our goal was to compare affective responses and frontal electroencephalographic alpha asymmetry induced by prescribed exercise (PE) and self-selected exercise (SS). METHOD: Twenty active participants underwent a submaximal exercise test to estimate maximal oxygen consumption (VO2max). Participants enrolled a cross-over randomized study where each participant completed three conditions: PE (50%PVO2max), SS and Control. The electroencephalography was performed before and after exercise...
2016: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/27864047/apoe%C3%AE%C2%B54-impacts-up-regulation-of-brain-derived-neurotrophic-factor-after-a-six-month-stretch-and-aerobic-exercise-intervention-in-mild-cognitively-impaired-elderly-african-americans-a-pilot-study
#12
Joanne S Allard, Oyonumo Ntekim, Steven P Johnson, Julius S Ngwa, Vernon Bond, Dynell Pinder, Richard F Gillum, Thomas V Fungwe, John Kwagyan, Thomas O Obisesan
Possession of the Apolipoprotein E (APOE) gene ε4 allele is the most prevalent genetic risk factor for late onset Alzheimer's disease (AD). Recent evidence suggests that APOE genotype differentially affects the expression of brain-derived neurotrophic factor (BDNF). Notably, aerobic exercise-induced upregulation of BDNF is well documented; and exercise has been shown to improve cognitive function. As BDNF is known for its role in neuroplasticity and survival, its upregulation is a proposed mechanism for the neuroprotective effects of physical exercise...
November 15, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27861507/the-association-of-ace-genotypes-on-cardiorespiratory-variables-related-to-physical-fitness-in-healthy-men
#13
Salomão Bueno, Leonardo A Pasqua, Gustavo de Araújo, Adriano Eduardo Lima-Silva, Rômulo Bertuzzi
Aerobic power (VO2max), aerobic capacity (RCP), and running efficiency (RE) are important markers of aerobic fitness. However, the influence of the angiotensin converting enzyme (ACE) polymorphism on these markers has not been investigated in healthy individuals. One hundred and fifty physically active young men (age 25 ± 3 years; height 1.77 ± 0.06 m; body mass 76.6 ± 0.9 kg; VO2max 47.7 ± 5.5 ml·kg-1·min-1) visited the laboratory on two separate occasions, and performed the following tests: a) a maximal incremental treadmill test to determine VO2max and RCP, and b) two constant-speed running tests (10 km·h-1 and 12 km·h-1) to determine RE...
2016: PloS One
https://www.readbyqxmd.com/read/27858257/maximal-oxygen-uptake-and-exercise-tolerance-are-improved-in-rats-with-heart-failure-subjected-to-low-level-laser-therapy-associated-with-resistance-training
#14
Vítor Scotta Hentschke, Lucas Capalonga, Douglas Dalcin Rossato, Júlia Luíza Perini, Jadson Pereira Alves, Giuseppe Potrick Stefani, Marlus Karsten, Mauro Pontes, Pedro Dal Lago
Exercise tolerance and maximal oxygen uptake (VO2max) are reduced in heart failure (HF). The influence of combined resistance training (RT) and low-level laser therapy (LLLT) on exercise tolerance and VO2max in HF has not yet been explored. The aim of this study was to evaluate the influence of combined RT and LLLT on VO2max and exercise tolerance in rats with HF induced by myocardial infarction (MI). Rats were allocated to sedentary sham (Sed-Sham, n = 12), sedentary heart failure (Sed-HF, n = 9), RT heart failure (RT-HF, n = 7) and RT associated with LLLT heart failure (RT + LLLT-HF, n = 7) groups...
November 17, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27855265/a-randomized-controlled-trial-of-school-based-active-videogame-intervention-on-chinese-children-s-aerobic-fitness-physical-activity-level-and-psychological-correlates
#15
Patrick Wing Chung Lau, Jing Jing Wang, Ralph Maddison
OBJECTIVE: Active videogames (AVGs) that require body movements to play offer a novel opportunity to turn a traditionally sedentary behavior into a physically active one. We sought to determine the effect of a school-based AVG intervention on Chinese children's aerobic fitness, physical activity (PA) level, and PA-related psychological correlates. MATERIALS AND METHODS: Eighty 8-11-year-old Chinese children (55 males) were recruited from one Hong Kong primary school and were allocated at random to either an AVG intervention or control group...
November 17, 2016: Games for Health
https://www.readbyqxmd.com/read/27847723/comparison-of-the-effects-of-cardiac-rehabilitation-between-obese-and-non-obese-patients-after-acute-myocardial-infarction
#16
Seung-Kyu Lim, Jae-Young Han, Yu-Ri Choe
OBJECTIVE: To evaluate the effects of cardiac rehabilitation (CR) on functional capacity in obese and non-obese patients who have suffered acute myocardial infarction (AMI). METHODS: Overall, 359 patients who have suffered AMI, and were referred for CR after percutaneous coronary intervention from 2010 to 2015 and underwent an exercise tolerance test before and after phase II CR were included in this study. The patients were divided into two groups: obese group with body mass index (BMI) ≥25 kg/m(2) (n=170; age, 54...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27846319/genetic-correlation-between-body-fat-percentage-and-cardiorespiratory-fitness-suggests-common-genetic-etiology
#17
Theresia M Schnurr, Anette P Gjesing, Camilla H Sandholt, Anna Jonsson, Yuvaraj Mahendran, Christian T Have, Claus T Ekstrøm, Anne-Louise Bjerregaard, Soren Brage, Daniel R Witte, Marit E Jørgensen, Mette Aadahl, Betina H Thuesen, Allan Linneberg, Hans Eiberg, Oluf Pedersen, Niels Grarup, Tuomas O Kilpeläinen, Torben Hansen
OBJECTIVES: It has long been discussed whether fitness or fatness is a more important determinant of health status. If the same genetic factors that promote body fat percentage (body fat%) are related to cardiorespiratory fitness (CRF), part of the concurrent associations with health outcomes could reflect a common genetic origin. In this study we aimed to 1) examine genetic correlations between body fat% and CRF; 2) determine whether CRF can be attributed to a genetic risk score (GRS) based on known body fat% increasing loci; and 3) examine whether the fat mass and obesity associated (FTO) locus associates with CRF...
2016: PloS One
https://www.readbyqxmd.com/read/27834671/habitual-aerobic-exercise-does-not-protect-against-micro-or-macrovascular-endothelial-dysfunction-in-healthy-estrogen-deficient-postmenopausal-women
#18
Jessica R Santos-Parker, Talia R Strahler, Victoria M Vorwald, Gary L Pierce, Douglas R Seals
Aging causes micro- and macrovascular endothelial dysfunction, as assessed by endothelium-dependent dilation (EDD), which can be prevented and reversed by habitual aerobic exercise (AE) in men. However, in estrogen-deficient postmenopausal women, whole forearm microvascular EDD hasn't been studied, and a beneficial effect of AE on macrovascular EDD hasn't been consistently shown. We assessed forearm blood flow in response to brachial artery infusions of acetylcholine (FBFACh), a measure of whole forearm microvascular EDD, and brachial artery flow-mediated dilation (FMD), a measure of macrovascular EDD, in 12 premenopausal sedentary women (Pre-S; 24±1 yrs; VO2max=37...
November 10, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27834554/subjective-fatigue-and-readiness-to-train-may-predict-functional-overreaching-after-only-3-days-of-cycling
#19
Twan Ten Haaf, Selma van Staveren, Erik Oudenhoven, Maria F Piacentini, Romain Meeusen, Bart Roelands, Leo Koenderman, Hein A M Daanen, Carl Foster, Jos J de Koning
PURPOSE: The aim of this study was to investigate whether monitoring of easily measurable stressors and symptoms can be used to early distinguish between acute fatigue (AF) and functional overreaching (FOR). METHODS: The study included 30 subjects (11 female/ 19 male, age: 40.8±10.8 y, VO2max: 51.8±6.3 ml/kg/min) who participated in an 8-day cycling event over 1,300 km with 18,500 climbing meters. Performance was measured before and after the event using a maximal incremental test...
November 11, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27831921/the-effects-of-smoking-and-nicotine-ingestion-on-exercise-heat-tolerance
#20
Amit Druayn, Danit Atias, Itay Ketko, Yoav Cohen-Sivan, Yuval Heled
BACKGROUND: Smoking has a thermogenic effect and is associated with low physical performance. Nevertheless, a direct, quantitative effect of acute smoking on exercise heat tolerance has not been reported. METHODS: Sixteen healthy young male volunteers, eight cigarette smokers, and eight non-smokers participated in the study. All subjects performed a maximal oxygen consumption test (VO2max) and a standardized heat tolerance test (HTT) after at least 12 h without smoking under the following conditions: no nicotine exposure, 10 min after nicotine exposure (2 mg nicotine lozenge), and 10 min after smoking two cigarettes (0...
November 10, 2016: Journal of Basic and Clinical Physiology and Pharmacology
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