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https://www.readbyqxmd.com/read/28107459/associations-of-health-club-membership-with-physical-activity-and-cardiovascular-health
#1
Elizabeth C Schroeder, Gregory J Welk, Warren D Franke, Duck-Chul Lee
INTRODUCTION: This study evaluates whether a health club membership is associated with meeting the US physical activity (PA) guidelines and/or favorable cardiovascular health. METHODS: Using cross-sectional data of health club members (n = 204) and non-members (n = 201) from April to August 2013, this is the first study to our knowledge to examine a health club membership in relation to objectively measured cardiovascular health indicators including resting blood pressure, resting heart rate, body mass index, waist circumference, and cardiorespiratory fitness based on a non-exercise test algorithm...
2017: PloS One
https://www.readbyqxmd.com/read/28104245/assessing-kinematics-and-kinetics-of-functional-electrical-stimulation-rowing
#2
Adina E Draghici, Glen Picard, J Andrew Taylor, Sandra J Shefelbine
Hybrid functional electrical stimulation (FES) rowing has positive effects on cardiovascular fitness, producing significantly greater aerobic power than either upper body or FES exercise alone. However, there is minimal information on the kinematics, kinetics, and mechanical efficiency of FES-rowing in the spinal cord injured (SCI) population. This study examined the biomechanics of FES-rowing to determine how motions, forces, and aerobic demand change with increasing intensity. Six individuals with SCI and six able-bodied subjects performed a progressive aerobic capacity rowing test...
January 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28095061/methods-of-monitoring-training-load-and-their-relationships-to-changes-in-fitness-and-performance-in-competitive-road-cyclists
#3
Dajo Sanders, Grant Abt, Matthijs K Hesselink, Tony Myers, Ibrahim Akubat
PURPOSE: The aim of this study was to assess the dose-response relationships between different training load methods and aerobic fitness and performance in competitive road cyclists. METHOD: Training data from 15 well-trained competitive cyclists were collected during a 10-week (December - March) pre-season training period. Before and after the training period, participants underwent a laboratory incremental exercise test with gas exchange and lactate measures and a performance assessment using an 8-min time trial (8MT)...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28093924/effects-of-an-adapted-cardiac-rehabilitation-programme-on-arterial-stiffness-in-patients-with-type-2-diabetes-without-cardiac-disease-diagnosis
#4
Anka P Brozic, Susan Marzolini, Jack M Goodman
PURPOSE: To determine the effects of a 12-week cardiac rehabilitation programme of aerobic and resistance exercise training on arterial stiffness, peak calf vasodilatory reserve, and haemostatic markers in patients with type 2 diabetes. METHODS: Observational cohort study examining effects of 12 weeks of exercise training in 23 subjects (13 men, 10 women; mean age of 56.1 ± 10.1 years) with type 2 diabetes mellitus. Subjects performed exercise training for 12 weeks [aerobic training 5 days/week, 70%-75% peak cardiovascular fitness (VO2peak) and resistance training 2-3 days/week, 60% of one repetition maximum]...
January 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28090141/do-maximal-aerobic-power-and-blood-lactate-concentration-affect-specific-judo-fitness-test-performance-in-female-judo-athletes
#5
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/28089898/exercise-guidelines-to-promote-cardiometabolic-health-in-spinal-cord-injured-humans-time-to-raise-the-intensity
#6
Tom E Nightingale, Richard S Metcalfe, Niels Bj Vollaard, James L J Bilzon
Spinal cord injury (SCI) is a life changing event that, as a result of paralysis, negatively influences habitual levels of physical activity and hence cardiometabolic health. Performing regular structured exercise therefore appears extremely important in persons with SCI. However, exercise options are mainly limited to the upper-body, which involves a smaller activated muscle mass compared to the mainly leg-based activities commonly performed by non-disabled individuals. Current exercise guidelines for SCI focus predominantly on relative short durations of moderate-intensity aerobic arm cranking exercise, yet contemporary evidence suggests this is not sufficient to induce meaningful improvements in risk factors for the prevention of cardiometabolic disease in this population...
January 12, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28089456/protective-effects-of-exercise-training-on-endothelial-dysfunction-induced-by-total-sleep-deprivation-in-healthy-subjects
#7
Fabien Sauvet, Pierrick J Arnal, Pierre Emmanuel Tardo-Dino, Catherine Drogou, Pascal Van Beers, Clément Bougard, Arnaud Rabat, Garance Dispersyn, Alexandra Malgoyre, Damien Leger, Danielle Gomez-Merino, Mounir Chennaoui
BACKGROUND: Sleep loss is a risk factor for cardiovascular events mediated through endothelial dysfunction. AIMS: To determine if 7weeks of exercise training can limit cardiovascular dysfunction induced by total sleep deprivation (TSD) in healthy young men. METHODS: 16 subjects were examined during 40-h TSD, both before and after 7weeks of interval exercise training. Vasodilatation induced by ACh, insulin and heat (42°C) and pulse wave velocity (PWV), blood pressure and heart rate (HR) were assessed before TSD (controlday), during TSD, and after one night of sleep recovery...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28089399/a-mass-balance-model-to-estimate-the-rate-of-composting-methane-oxidation-and-anaerobic-digestion-in-soil-covers-and-shallow-waste-layers
#8
Reza Rafiee, Lizanne Obersky, Sihuang Xie, William P Clarke
Although CH4 oxidation in landfill soil covers is widely studied, the extent of composting and CH4 oxidation in underlying waste layers has been speculated but not measured. The objective of this study was to develop and validate a mass balance model to estimate the simultaneous rates of anaerobic digestion (rAD), CH4 oxidation (rOX) and composting (rCOM) in environments where O2 penetration is variable and zones of aerobic and anaerobic activity are intermingled. The modelled domain could include, as an example, a soil cover and the underlying shallow waste to a nominated depth...
January 12, 2017: Waste Management
https://www.readbyqxmd.com/read/28086943/a-lifestyle-intervention-among-elderly-men-on-active-surveillance-for-non-aggressive-prostate-cancer-a-randomised-feasibility-study-with-whole-grain-rye-and-exercise
#9
Anne Kirstine Eriksen, Rikke Dalgaard Hansen, Michael Borre, Ryan Godsk Larsen, Jeppe Munthe Jensen, Kristian Overgaard, Mette Borre, Cecilie Kyrø, Rikard Landberg, Anja Olsen, Anne Tjønneland
BACKGROUND: The prognosis for men with non-aggressive prostate cancer is good, and several studies have investigated the impact of lifestyle changes including physical activity and diet on the prognosis. Despite positive results in animal studies and a few human interventions with whole-grain rye on markers of prostate cancer progression, the feasibility of trials investigating such dietary changes in combination with physical activity remains largely unstudied. The primary aim was to investigate the feasibility of an intervention with high whole-grain rye intake and vigorous physical activity for 6 months in men diagnosed with prostate cancer...
January 13, 2017: Trials
https://www.readbyqxmd.com/read/28078668/mitochondrial-adaptations-to-exercise-in-human-skeletal-muscle-a-possible-role-for-cristae-density-as-a-determinant-of-muscle-fitness
#10
Christopher G R Perry
Skeletal muscle possesses a remarkable plasticity in response to repeated exercise challenges (i.e. exercise 'training'). A hallmark phenotypic change is an increase in the ability to sustain contraction and resist fatigue. Such increased muscle endurance is linked, in part, to an improved ability to sustain ATP synthesis aerobically through coordinated enhancements in the delivery of oxygen (e.g. cardiorespiratory, vascular adaptations) and its utilization within skeletal muscle mitochondria for the oxidation of fat and carbohydrates...
January 11, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28075422/inflammation-cardiometabolic-markers-and-functional-changes-in-a-randomized-controlled-trial-of-a-12-month-exercise-program-for-prostate-cancer-men
#11
Katarzyna Hojan, Eliza Kwiatkowska-Borowczyk, Ewa Leporowska, Piotr Milecki
INTRODUCTION    Previous studies have shown that physical exercise in cancer patients during radiotherapy (RT) and androgen deprivation therapy (ADT) improves cardiac fitness and quality of life (QoL), and reduces fatigue but it is still not entirely known how it affects inflammation or metabolic factors and what its consequences are in prostate cancer (PCa) patients. OBJECTIVES    Effect of a 12-month physical exercise program on inflammatory and cardiometabolic factors, and on functional status in PCa patients undergoing RT and ADT...
January 10, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28073325/the-moderating-role-of-insulin-like-growth-factor-1-in-the-relationship-between-cognitive-and-aerobic-endurance-change
#12
Jason R Anderson, Dayana Calvo, Ellen Glickman, John Gunstad, Mary Beth Spitznagel
BACKGROUND: Improvements in cognition often accompany fitness improvements in older adults, and research suggests insulin-like growth factor 1 (IGF-1) may influence this association. No prior work has examined this in mild cognitive impairment (MCI). We predicted that IGF-1 would moderate the relationship between cognition and aerobic endurance improvement, such that greater baseline IGF-1 would accompany a stronger relationship between cognition and aerobic endurance change. METHOD: Twenty-seven individuals with MCI completed assessments of aerobic endurance (2-minute step test [2MST]) and global cognition (Modified Mini-Mental State [3MS]) before and after a 6-month period of twice-weekly exercise...
January 1, 2017: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/28068163/description-and-rate-of-musculoskeletal-injuries-in-air-force-basic-military-trainees-2012-2014
#13
Nathaniel S Nye, Mary T Pawlak, Bryant J Webber, Juste N Tchandja, Michelle R Milner
CONTEXT:  Musculoskeletal injuries are common in military trainees and have significant medical and operational effects. OBJECTIVE:  To provide current musculoskeletal injury epidemiology data for US Air Force basic military trainees. DESIGN:  Descriptive epidemiologic study with cross-sectional features. SETTING:  US Air Force Basic Military Training, Joint Base San Antonio-Lackland, Texas. PATIENTS OR OTHER PARTICIPANTS:  All recruits who entered training between July 1, 2012, and June 30, 2014...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28056091/respiration-of-microbiota-derived-1-2-propanediol-drives-salmonella-expansion-during-colitis
#14
Franziska Faber, Parameth Thiennimitr, Luisella Spiga, Mariana X Byndloss, Yael Litvak, Sara Lawhon, Helene L Andrews-Polymenis, Sebastian E Winter, Andreas J Bäumler
Intestinal inflammation caused by Salmonella enterica serovar Typhimurium increases the availability of electron acceptors that fuel a respiratory growth of the pathogen in the intestinal lumen. Here we show that one of the carbon sources driving this respiratory expansion in the mouse model is 1,2-propanediol, a microbial fermentation product. 1,2-propanediol utilization required intestinal inflammation induced by virulence factors of the pathogen. S. Typhimurium used both aerobic and anaerobic respiration to consume 1,2-propanediol and expand in the murine large intestine...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28054144/aerobic-fitness-impacts-sympathoadrenal-axis-responses-to-concurrent-challenges
#15
Heather E Webb, Deena A Rosalky, Matthew J McAllister, Edmund O Acevedo, Gary H Kamimori
: The combination of mental and physical challenges can elicit exacerbated cardiorespiratory (CR) and catecholamine responses above that of a single challenge alone. PURPOSE: This study examined the effects of a combination of acute mental challenges and physical stress on cardiorespiratory and catecholamine responses. METHOD: Eight below-average fitness (LF VO2max = 36.58 ± 3.36 ml(-1) kg(-1) min(-1)) and eight above-average fitness (HF VO2max = 51...
January 4, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28039888/aerobic-training-in-myotonia-congenita-effect-on-myotonia-and-fitness
#16
Grete Andersen, Nicoline Løkken, John Vissing
INTRODUCTION: Exercise has not been investigated in myotonia congenita (MC). We investigated whether regular aerobic training can reduce myotonia and improve fitness. METHODS: Untrained patients with MC (age: 24-62 years, n=6) completed 28±3 sessions of 30-minute cycle ergometer training at 75% of maximal capacity for 11±1 weeks. Fitness was evaluated by maximal oxygen uptake. The level of myotonia was assessed by the Myotonia Behavior Scale, 14 step stair test, timed up and go test, and hand and eye closure-open tests...
December 31, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/28039287/vascular-biomarkers-to-predict-response-to-exercise-in-alzheimer-s-disease-the-study-protocol
#17
Danni Li, Robin Thomas, Michael Y Tsai, Ling Li, David M Vock, Susan Greimel, Fang Yu
INTRODUCTION: Exercise interventions are a promising treatment for improving cognition in persons with Alzheimer's disease. This is similar to Alzheimer's disease pharmacotherapies in which only 18-48% of treated patients demonstrate improvement in cognition. Aerobic exercise interventions positively affect brain structure and function through biologically sound pathways. However, an under-studied mechanism of aerobic exercise's effects is n-3 fatty acids in plasma. The objective of this pilot study is to inform a future large-scale study to develop n-3 fatty acids-based prediction of cognitive responses to aerobic exercise treatment in Alzheimer's disease...
December 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/28035890/phylogenetic-analysis-supports-the-aerobic-capacity-model-for-the-evolution-of-endothermy
#18
Roberto F Nespolo, Jaiber J Solano-Iguaran, Francisco Bozinovic
The evolution of endothermy is a controversial topic in evolutionary biology, although several hypotheses have been proposed to explain it. To a great extent, the debate has centered on the aerobic-capacity model (AC model), an adaptive hypothesis involving maximum and resting rates of metabolism (MMR and RMR, respectively; hereafter "metabolic traits"). The AC model posits that MMR, a proxy of aerobic capacity and sustained activity, is the target of directional selection and that RMR is also influenced as a correlated response...
January 2017: American Naturalist
https://www.readbyqxmd.com/read/28031756/does-the-mthfr-a1298c-polymorphism-modulate-the-cardiorespiratory-response-to-training
#19
Paweł Cięszczyk, Aleksandra Zarębska, Zbigniew Jastrzębski, Michał Sawczyn, Izabela Kozakiewicz-Drobnik, Agata Leońska-Duniec, Mariusz Kaczmarczyk, Agnieszka Maciejewska-Skrendo, Piotr Żmijewski, Grzegorz Trybek, Wojciech Smółka, Jan Pilch, Katarzyna Leźnicka, Ewelina Lulińska-Kuklik, Marek Sawczuk, Myosotis Massidda
The 5,10-methylenetetrahydrofolate reductase gene (MTHFR) A1298C polymorphic variant is a candidate to explain the individual differences in trainability and response to exercise training. Therefore, the aim of the study was to verify whether the A1298C polymorphism influenced the aerobic and anaerobic performance as well as body and mass composition in young Polish women following low-high impact aerobic exercise training. Two hundred and one women aged 21 ± 1 years (range 19-24) were included in the study...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28030533/physical-and-physiological-profile-of-wrestler-athletes-short-review
#20
Helmi Chaabene, Yassine Negra, Raja Bouguezzi, Bessem Mkaouer, Emerson Franchini, Ursula Julio, Younés Hachana
Wrestling is one of the oldest combat sports, disputed since the ancient Greek Olympic Games. This combat sport discipline has caught the attention of scientists since 1943 which is the date that matches the appearance of the first scientific research dealing with wrestling. The current short review aimed to summarize and critically analyze the scientific literature related to wrestling's physical and physiological attributes and to provide practical recommendations for testing/training together with new perspective and areas of future scientific research...
December 24, 2016: Journal of Strength and Conditioning Research
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