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https://www.readbyqxmd.com/read/28646812/oral-consumption-of-vitamin-k2-for-8-weeks-associated-with-increased-maximal-cardiac-output-during-exercise
#1
Brian K McFarlin, Andrea L Henning, Adam S Venable
Background • Vitamin K1 and K2 are not typically common in a Western diet because they are found in a variety of fermented foods. Vitamin K2 in particular has been demonstrated to restore mitochondrial function and has a key role in production of mitochondrial adenosine triphosphate. Thus, it is reasonable to speculate that dietary supplementation with vitamin K2 could increase the function of muscle with high mitochondrial content (ie, skeletal and cardiac muscle). Objective • The purpose of this study was to determine if 8 wk of dietary supplementation with Vitamin K2 could alter cardiovascular responses to a graded cycle ergometer test...
July 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28645696/exercise-training-improves-functional-status-in-hypertensive-older-adults-under-angiotensin-converting-enzymes-inhibitors-medication
#2
Liliana C Baptista, Aristides M Machado-Rodrigues, Manuel Teixeira Veríssimo, Raul A Martins
BACKGROUND: The study aims to analyze the effect of three types of treatment on functional status, and cardiovascular risk outcomes in hypertensive older adults with comorbidities. METHODS: Participants (n=418) underwent one of the following 3 conditions: i) multicomponent exercise training 3times/week (MEX; n=116); ii) angiotensin converting enzyme inhibitors used mono-dose daily (ACEi; n=70); iii) combined exercise and ACEi drugs (ACEiMEX; n=232). The trial was completed by 82% of the participants (n=342): MEX (n=90); ACEi (n=66); ACEiMEX (n=186)...
June 20, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28642340/cardiovascular-and-cerebral-hemodynamics-during-exercise-and-recovery-in-obese-individuals-as-a-function-of-their-fitness-status
#3
Mathieu Gayda, Gabriel Lapierre, Olivier Dupuy, Sarah Fraser, Louis Bherer, Martin Juneau, Vincent Gremeaux, Anil Nigam
The aim of this study was to compare cardiovascular hemodynamics and cerebral oxygenation/perfusion (COP) during and after maximal incremental exercise in obese individuals according to their aerobic fitness versus age-matched healthy controls (AMHC). Fifty-four middle-aged obese (OB) and 16 AMHC were recruited. Maximal cardiopulmonary function (gas exchange analysis), cardiac hemodynamics (impedance cardiography), and left frontal COP (near-infrared spectroscopy: NIRS) were measured continuously during a maximal incremental ergocycle test...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28641376/height-weight-and-aerobic-fitnessin-relation-to-risk-of-atrial-fibrillation
#4
Casey Crump, Jan Sundquist, Marilyn A Winkleby, Kristina Sundquist
Tall stature or obesity has been associated with higher risk of atrial fibrillation (AF), but reported effects of aerobic fitness have been conflicting. A national cohort study was conducted to examine interactions between height or weight and aerobic fitness among 1,547,478 Swedish military conscripts during 1969-1997 (97-98% of all 18-year-old males) in relation to AF identified from nationwide inpatient and outpatient diagnoses through 2012 (maximum age 62). Increased height, weight, or aerobic fitness (but not muscular strength) at age 18 was associated with higher AF risk in adulthood...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28639441/effect-of-periodized-high-intensity-interval-training-hiit-on-body-composition-and-attitudes-towards-hunger-in-active-men-and-women
#5
Todd A Astorino, Brendyn Heath, Jason Bandong, Gina M Ordille, Ramon Contreras, Matthew Montell, Matthew M Schubert
BACKGROUND: High intensity interval training (HIIT) increases maximal oxygen uptake similar to aerobic exercise. However, changes in body composition are equivocal in response to HIIT. AIM: We examined changes in body composition and dietary restraint in response to 20 sessions of HIIT varying in structure. METHODS: Thirty nine active men and women (age and VO2max = 22.5 ± 4.4 yr and 40.1 ± 5.6 mL/kg/min) were randomized to one of three periodized HIIT regimes performed on a cycle ergometer...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28639439/somatic-characteristics-and-motor-fitness-of-elite-and-sub-elite-polish-male-badminton-players
#6
Paweł Tomaszewski, Anna Kęska, Joanna Tkaczyk, Dariusz Nowicki, Edyta Sienkiewicz-Dianzenza
BACKGROUND: An appropriate level of somatic and fitness traits is believed to contribute to success in an international badminton competitions however, these have not been sufficiently explored in elite Polish badminton players. Therefore, the aim of the study was to assess somatic build and physical fitness of elite and sub-elite Polish badminton players and to identify key traits that determine achieving sporting success in badminton. METHODS: The study participants comprised 20 men from the Polish Badminton National Teams A (elite; n = 9) and B (sub-elite; n = 11)...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28638000/effectiveness-of-workplace-exercise-supervised-by-a-physical-therapist-among-nurses-conducting-shift-work-a-randomized-controlled-trial
#7
Ryutaro Matsugaki, Satoshi Kuhara, Satoru Saeki, Ying Jiang, Ryoma Michishita, Masanori Ohta, Hiroshi Yamato
OBJECTIVES: This study aimed to evaluate the effectiveness of supervised exercise among nurses conducting shift work for health promotion. METHODS: A total of 30 healthy female nurses conducting shift work participated in this study and they were randomly assigned to one of the following 2 groups: The supervised exercise group (SG; participants exercised under the supervision of a physical therapist (PT)) and the voluntary exercise group (VG; participants exercised without supervision)...
June 20, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/28636647/hemodynamic-and-metabolic-characteristics-associated-with-development-of-a-right-ventricular-outflow-tract-pressure-gradient-during-upright-exercise
#8
Annelieke C M J van Riel, David M Systrom, Rudolf K F Oliveira, Michael J Landzberg, Barbara J M Mulder, Berto J Bouma, Bradley A Maron, Amil M Shah, Aaron B Waxman, Alexander R Opotowsky
BACKGROUND: We recently reported a novel observation that many patients with equal resting supine right ventricular(RV) and pulmonary artery(PA) systolic pressures develop an RV outflow tract(RVOT) pressure gradient during upright exercise. The current work details the characteristics of patients who develop such an RVOT gradient. METHODS: We studied 294 patients (59.7±15.5 years-old, 49% male) referred for clinical invasive cardiopulmonary exercise testing, who did not have a resting RVOT pressure gradient defined by the simultaneously measured peak-to-peak difference between RV and PA systolic pressures...
2017: PloS One
https://www.readbyqxmd.com/read/28632175/physical-fitness-physical-activity-sedentary-behavior-or-diet-what-are-the-correlates-of-obesity-in-polish-school-children
#9
Stanisław H Czyż, Abel L Toriola, Wojciech Starościak, Marek Lewandowski, Yvonne Paul, Adewale L Oyeyemi
There is substantial evidence of rising prevalence of overweight and obesity and its co-morbidities among children in western-high income developed countries. In the European Union, the prevalence of overweight and obesity is increasing fastest among Polish children. Yet, there is paucity of evidence on the relationship of behavioral factors with body weight status of children in Poland. This study examined the association of obesity with physical fitness, physical activity, sedentary behavior and diet among Polish children...
June 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28629338/a-phase-2-randomized-trial-to-evaluate-the-impact-of-a-supervised-exercise-program-on-cardiotoxicity-at-3%C3%A2-months-in-patients-with-her2-overexpressing-breast-cancer-undergoing-adjuvant-treatment-by-trastuzumab-design-of-the-cardapac-study
#10
Quentin Jacquinot, Nathalie Meneveau, Marion Chatot, Franck Bonnetain, Bruno Degano, Malika Bouhaddi, Gilles Dumoulin, Dewi Vernerey, Xavier Pivot, Fabienne Mougin
BACKGROUND: The overexpression of human epidermal growth factor receptor-2 (HER2) in breast cancer is a poor prognosis. Trastuzumab improves overall survival but is associated with cardiotoxicity, especially a decline in left ventricular ejection fraction (LVEF). In addition, chemotherapy and radiotherapy increase fatigue and pain, decrease physical capacity and health-related quality of life. To date, no study has evaluated the benefits of physical activity on the side effects of treatment in patients with HER2 positive breast cancer...
June 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28628047/improving-body-composition-may-reduce-the-immune-and-inflammatory-responses-of-firefighters-working-in-the-heat
#11
Anthony Walker, Heather E Wright Beatty, Sara Zanetti, Ben Rattray
OBJECTIVE: We hypothesized that different body composition and fitness of firefighters would affect immune and inflammatory activity after working in the heat. METHODS: Forty-two firefighters worked in the heat (100 ± 5 °C). Changes in leukocytes, platelets, tumor necrosis factor (TNF-α), and C-reactive protein (CRP) were analyzed based on body composition (DXA) and aerobic fitness (VO2max). RESULTS: Higher baseline leukocytes were observed for high body fat (P = 0...
April 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28627195/exercise-improved-semen-quality-and-reproductive-hormone-levels-in-sedentary-obese-adults
#12
Miguel Ángel Rosety, Antonio Jesus Díaz, Jesús María Rosety, María Teresa Pery, Francisco Brenes-Martín, Marco Bernardi, Natalia García, Manuel Rosety-Rodríguez, Francisco Javier Ordoñez, Ignacio Rosety
INTRODUCTION: From the previously published literature on the relationship between obesity and infertility, it is clear that male obesity negatively impacts semen quality. Accordingly, this study was conducted to determine whether regular exercise may improve semen quality in sedentary obese adults. MATERIAL AND METHODS: Ninety obese adults were randomly allocated to the intervention (n = 45) or control group (n = 45). Participants in the intervention group performed a 16-week aerobic training program in a treadmill, three sessions per week, consisting of a warm-up (10-15 minutes), 35-50 minutes treadmill exercise (increasing five minutes per four weeks) at a work intensity of 50-65% of peak heart rate (increasing a 5% per four weeks) and cooling-down (5-10 minutes)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28623613/assessment-of-metabolic-flexibility-by-means-of-measuring-blood-lactate-fat-and-carbohydrate-oxidation-responses-to-exercise-in-professional-endurance-athletes-and-less-fit-individuals
#13
Iñigo San-Millán, George A Brooks
BACKGROUND: Increased muscle mitochondrial mass is characteristic of elite professional endurance athletes (PAs), whereas increased blood lactate levels (lactatemia) at the same absolute submaximal exercise intensities and decreased mitochondrial oxidative capacity are characteristics of individuals with low aerobic power. In contrast to PAs, patients with metabolic syndrome (MtS) are characterized by a decreased capacity to oxidize lipids and by early transition from fat to carbohydrate oxidation (FATox/CHOox), as well as elevated blood lactate concentration [La(-)] as exercise power output (PO) increases, a condition termed 'metabolic inflexibility'...
June 16, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28620012/metabolic-disturbances-of-non-alcoholic-fatty-liver-resemble-the-alterations-typical-for-type-2-diabetes
#14
Bram Brouwers, Vera B Schrauwen-Hinderling, Tomas Jelenik, Anne Gemmink, Bas Havekes, Yvonne Bruls, Dennis Dahlmans, Michael Roden, Matthijs K C Hesselink, Patrick Schrauwen
Non-alcoholic fatty liver (NAFL) is an independent risk factor for the development of type 2 diabetes (T2DM). We examined metabolic perturbations in people with NAFL, patients with T2DM and people with normal intrahepatic lipid (IHL) (CON). A 2-step (10mU/m(2)/min, 40mU/m(2)/min) hyperinsulinemic-euglycemic clamp was performed in 11 NAFL, 13 T2DM and 11 CON, all matched for BMI and aerobic fitness. IHL was measured using proton magnetic resonance spectroscopy. Because of high IHL variability in T2DM patients, this group was separated into a high IHL (IHL≥5...
June 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28613947/the-effects-of-basal-insulin-suspension-at-the-start-of-exercise-on-blood-glucose-levels-during-continuous-versus-circuit-based-exercise-in-individuals-with-type-1-diabetes-on-continuous-subcutaneous-insulin-infusion
#15
Dessi Zaharieva, Loren Yavelberg, Veronica Jamnik, Ali Cinar, Kamuran Turksoy, Michael C Riddell
BACKGROUND: Exercise causes glycemic disturbances in individuals with type 1 diabetes (T1D). Continuous moderate-intensity aerobic exercise (CON) generally lowers blood glucose (BG) levels and often leads to hypoglycemia. In comparison, circuit-based exercise (CIRC) may attenuate the drop in BG. The goal of this study is to contrast the effects of basal insulin suspension at the onset of two different forms of exercise (CON vs. CIRC). METHODS: Twelve individuals (six men and six women) with T1D on insulin pump therapy were recruited for the study...
June 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28606473/cardiorespiratory-fitness-and-exercise-training-in-african-americans
#16
REVIEW
Damon L Swift, Neil M Johannsen, Conrad P Earnest, Robert L Newton, Joshua E McGee, Timothy S Church
African Americans (AAs) have a higher risk for cardiovascular disease (CVD) compared to their Caucasian American ( CA) counterparts, which represents a major health disparity. Low cardiorespiratory fitness (CRF) is a well-established independent risk factor for all-cause and CVD mortality, which has been shown across many epidemiological and clinical trials to be lower in AAs compared to CAs. While much attention has been given to traditional health disparity risk factors (e.g. blood pressure, obesity, insulin resistance), the impact of racial differences in CRF on CVD mortality has not been widely considered...
June 10, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/28605221/the-association-between-self-reported-adherence-to-physical-activity-recommendations-and-criteria-for-maintaining-physical-independence-of-older-adults
#17
Katie J Thralls, Susan S Levy
BACKGROUND: While physical activity (PA) improves functions for activities of daily living, little is known of the association between meeting published PA Guidelines for Americans (PAGA) and meeting published physical function guidelines for maintaining independence. OBJECTIVE: To examine the association between meeting the PAGA and meeting independence criteria on the Senior Fitness Tests (SFT). METHODS: Older adults (N=265) completed SFTs, assessing cardiorespiratory fitness, lower and upper body strength, mobility, and self-reported aerobic and resistance PA...
June 12, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28602046/exercise-interventions-for-cerebral-palsy
#18
REVIEW
Jennifer M Ryan, Elizabeth E Cassidy, Stephen G Noorduyn, Neil E O'Connell
BACKGROUND: Cerebral palsy (CP) is a neurodevelopmental disorder resulting from an injury to the developing brain. It is the most common form of childhood disability with prevalence rates of between 1.5 and 3.8 per 1000 births reported worldwide. The primary impairments associated with CP include reduced muscle strength and reduced cardiorespiratory fitness, resulting in difficulties performing activities such as dressing, walking and negotiating stairs.Exercise is defined as a planned, structured and repetitive activity that aims to improve fitness, and it is a commonly used intervention for people with CP...
June 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28600319/microbiome-and-nafld-potential-influence-of-aerobic-fitness-and-lifestyle-modification
#19
Matthew R Panasevich, Willem T Peppler, Daniel B Oerther, David C Wright, R Scott Rector
Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease with prevalence rates that are on the rise in the US and worldwide. NAFLD encompasses a spectrum of liver pathologies including simple steatosis to nonalcoholic steatohepatitis (NASH) with inflammation and fibrosis. The gut microbiome has emerged as a potential therapeutic target in combating metabolic diseases including obesity, type 2 diabetes, and NAFLD/NASH. Diet-induced obesity/Western style diet feeding causes severe microbial dysbiosis initiating a microbiome signature that promotes metabolite production that directly impacts hepatic metabolism...
June 9, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28600156/resting-heart-rate-percentiles-and-associated-factors-in-children-and-adolescents
#20
Giselle Sarganas, Angelika Schaffrath Rosario, Hannelore K Neuhauser
OBJECTIVES: To present population-based resting heart rate (RHR) percentiles and associated factors in children and adolescents. STUDY DESIGN: Standardized RHR measurements with an oscillometric device were obtained from 3- to 17-year-olds who participated in the German Health Interview and Examination Survey for Children and Adolescents (n = 11 986). Age- and sex-specific RHR percentiles were derived using flexible age-dependent modeling. Linear regression was used to test associations of RHR and associated factors...
June 6, 2017: Journal of Pediatrics
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