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https://www.readbyqxmd.com/read/28213827/resistance-to-polycyclic-aromatic-hydrocarbon-toxicity-and-associated-bioenergetic-consequences-in-a-population-of-fundulus-heteroclitus
#1
C D Lindberg, N Jayasundara, J S Kozal, T C Leuthner, R T Di Giulio
Several locations in the Elizabeth River, VA, USA are highly contaminated with polycyclic aromatic hydrocarbons (PAHs) due to the release of creosote mixtures from wood treatment facilities. Interestingly, some populations of Atlantic killifish (Fundulus heteroclitus) inhabiting the Elizabeth River (ER) are resistant to PAH-induced teratogenesis. However, evolutionary resistance to PAHs due to chronic PAH exposure is associated with reduced fitness and increased susceptibility to other environmental stressors in at least one PAH-resistant ER killifish population...
February 17, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28207976/does-increased-physical-activity-in-school-affect-children-s-executive-function-and-aerobic-fitness
#2
Silje Eikanger Kvalø, Edvin Bru, Kolbjørn Brønnick, Sindre M Dyrstad
This study seeks to explore if increased PA in school affects children's executive function and aerobic fitness. The "Active school" study was a 10-month randomized controlled trial. The sample included 449 children (10-11 years old) in five intervention and four control schools. The weekly interventions were 2x45 min physically active academic lessons, 5x10 min physically active breaks and 5x10 min physically active homework. Aerobic fitness was measured using a 10-min interval running test. Executive function was tested using four cognitive tests (Stroop, verbal fluency, digit span and Trail Making)...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28198983/prolonged-sedentary-time-and-physical-fitness-among-canadian-men-and-women-aged-60-to-69
#3
Shilpa Dogra, Janine M Clarke, Jennifer L Copeland
BACKGROUND: Evidence for associations between prolonged sedentary time and breaks in sedentary time and fitness is limited in older adults. This study examines associations between objectively measured and self-reported total sedentary time and breaks in sedentary time with cardiorespiratory and musculoskeletal fitness among Canadian men and women aged 60 to 69. DATA AND METHODS: Data from cycles 1 and 2 of the Canadian Health Measures Survey were used for analysis...
February 15, 2017: Health Reports
https://www.readbyqxmd.com/read/28197733/relationship-between-exercise-capacity-and-urinary-liver-type-fatty-acid-binding-protein-in-middle-aged-and-older-individuals
#4
Keisei Kosaki, Atsuko Kamijo-Ikemori, Takeshi Sugaya, Koichiro Tanahashi, Hiroshi Kumagai, Yuriko Sawano, Nobuhiko Akazawa, Song-Gyu Ra, Kenjiro Kimura, Yugo Shibagaki, Seiji Maeda
BACKGROUND: The underlying mechanism linking the decline in exercise capacity with renal dysfunction remains unclear. Urinary liver-type fatty acid-binding protein (L-FABP) levels reflect the degree of peritubular capillary blood flow, an important factor for renal dysfunction with aging. The aim of this study was to examine the relationship between exercise capacity and urinary L-FABP levels. METHODS: This was a cross-sectional study of 187 middle-aged and older individuals (aged 50-83 years) without chronic kidney disease (CKD)...
February 14, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28196500/monitoring-training-response-in-young-friesian-dressage-horses-using-two-different-standardised-exercise-tests-sets
#5
Cornelis Marinus de Bruijn, Willem Houterman, Margreet Ploeg, Bart Ducro, Berit Boshuizen, Klaartje Goethals, Elisabeth-Lidwien Verdegaal, Catherine Delesalle
BACKGROUND: Most Friesian horses reach their anaerobic threshold during a standardized exercise test (SET) which requires lower intensity exercise than daily routine training. AIM: to study strengths and weaknesses of an alternative SET-protocol. Two different SETs (SETA and SETB) were applied during a 2 month training period of 9 young Friesian dressage horses. SETB alternated short episodes of canter with trot and walk, lacking long episodes of cantering, as applied in SETA...
February 14, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28194734/physical-and-physiological-profiles-of-brazilian-jiu-jitsu-athletes-a-systematic-review
#6
REVIEW
Leonardo Vidal Andreato, Francisco Javier Díaz Lara, Alexandro Andrade, Braulio Henrique Magnani Branco
BACKGROUND: Brazilian jiu-jitsu is a grappling combat sport that has intermittency as its core element; in other words, actions of high, moderate and low intensity are interspersed during matches, requiring a high level of conditioning to support optimal levels of performance for the total match time. The athletes perform from four to six matches during a day of competition, and this number may increase if the open-class competition, which is held parallel to the competition by weight class, is considered...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28188988/ocean-acidification-adversely-influences-metabolism-extracellular-ph-and-calcification-of-an-economically-important-marine-bivalve-tegillarca-granosa
#7
Xinguo Zhao, Wei Shi, Yu Han, Saixi Liu, Cheng Guo, Wandong Fu, Xueliang Chai, Guangxu Liu
Oceanic uptake of CO2 from the atmosphere has significantly reduced surface seawater pH and altered the carbonate chemistry within, leading to global Ocean Acidification (OA). The blood clam, Tegillarca granosa, is an economically and ecologically significant marine bivalve that is widely distributed along the coastal and estuarine areas of Asia. To investigate the physiological responses to OA, blood clams were exposed to ambient and three reduced seawater pH levels (8.1, 7.8, 7.6 and 7.4) for 40 days, respectively...
February 1, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28187744/medication-use-by-middle-aged-and-older-participants-of-an-exercise-study-results-from-the-brain-in-motion-study
#8
Tania Pannu, Sarah Sharkey, Grazyna Burek, Daniela Cretu, Michael D Hill, David B Hogan, Marc J Poulin
BACKGROUND: Over the past 50 years, there has been an increase in the utilization of prescribed, over-the-counter (OTC) medications, and natural health products. Although it is known that medication use is common among older persons, accurate data on the patterns of use, including the quantity and type of medications consumed in a generally healthy older population from a Canadian perspective are lacking. In this study, we study the pattern of medication use in a sedentary but otherwise healthy older persons use and determined if there was an association between medication use and aerobic fitness level...
February 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28187344/evaluation-of-implementing-a-community-based-exercise-intervention-during-pregnancy
#9
Lene A H Haakstad, Birgitte Sanda, Ingvild Vistad, Linda Reme Sagedal, Hilde Lohne Seiler, Monica K Torstveit
OBJECTIVE: to evaluate the implementation of a community-based exercise intervention (the Norwegian Fit for Delivery study) during pregnancy. DESIGN: descriptive, explorative. SETTING: healthcare clinics in southern Norway, including urban and rural settings. PARTICIPANTS: healthy, nulliparous women with singleton pregnancy of ≤20 gestational weeks, age ≥18 years and body mass index ≥19kg/m(2). METHODS: women were randomised to either twice-weekly supervised exercise sessions combined with nutritional counselling (n=303) or standard prenatal care (n=303)...
January 21, 2017: Midwifery
https://www.readbyqxmd.com/read/28187125/aerobic-exercise-for-alzheimer-s-disease-a-randomized-controlled-pilot-trial
#10
Jill K Morris, Eric D Vidoni, David K Johnson, Angela Van Sciver, Jonathan D Mahnken, Robyn A Honea, Heather M Wilkins, William M Brooks, Sandra A Billinger, Russell H Swerdlow, Jeffrey M Burns
BACKGROUND: There is increasing interest in the role of physical exercise as a therapeutic strategy for individuals with Alzheimer's disease (AD). We assessed the effect of 26 weeks (6 months) of a supervised aerobic exercise program on memory, executive function, functional ability and depression in early AD. METHODS AND FINDINGS: This study was a 26-week randomized controlled trial comparing the effects of 150 minutes per week of aerobic exercise vs. non-aerobic stretching and toning control intervention in individuals with early AD...
2017: PloS One
https://www.readbyqxmd.com/read/28187054/effects-of-an-8-week-aerobic-dance-program-on-health-related-fitness-in-patients-with-schizophrenia
#11
Shu-Li Cheng, Huey-Fang Sun, Mei-Ling Yeh
BACKGROUND: Both psychiatric symptoms and the side effects of medication significantly affect patients with schizophrenia. These effects frequently result in a sedentary lifestyle and weight gain, which increase the risk of cardiovascular disease and premature death. PURPOSE: This study developed an aerobic dance program for patients with schizophrenia and then evaluated the effect of this program on health-related fitness outcomes. METHODS: An experimental research design was used...
February 9, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/28185805/comparison-of-energy-expenditure-and-heart-rate-responses-between-three-commercial-group-fitness-classes
#12
James B Wickham, Nicholas J Mullen, Douglas G Whyte, Jack Cannon
OBJECTIVES: The objectives of this study were to compare the energy expenditure and heart rate responses between three commercial group fitness classes (group resistance exercise [PUMP]; indoor stationary cycling [RIDE]; and step aerobics [STEP]). DESIGN: One-Way Repeated Measures incorporating a Latin Square Design for class randomisation. METHODS: Ten participants (5 males and 5 females) completed each group fitness class in random order with energy expenditure and heart rate determined using an Actiheart monitor...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28182951/microbial-respiration-and-formate-oxidation-as-metabolic-signatures-of-inflammation-associated-dysbiosis
#13
Elizabeth R Hughes, Maria G Winter, Breck A Duerkop, Luisella Spiga, Tatiane Furtado de Carvalho, Wenhan Zhu, Caroline C Gillis, Lisa Büttner, Madeline P Smoot, Cassie L Behrendt, Sara Cherry, Renato L Santos, Lora V Hooper, Sebastian E Winter
Intestinal inflammation is frequently associated with an alteration of the gut microbiota, termed dysbiosis, which is characterized by a reduced abundance of obligate anaerobic bacteria and an expansion of facultative Proteobacteria such as commensal E. coli. The mechanisms enabling the outgrowth of Proteobacteria during inflammation are incompletely understood. Metagenomic sequencing revealed bacterial formate oxidation and aerobic respiration to be overrepresented metabolic pathways in a chemically induced murine model of colitis...
February 8, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28182505/factors-affecting-match-running-performance-in-professional-australian-football
#14
Samuel Ryan, Aaron J Coutts, Joel Hocking, Thomas Kempton
PURPOSE: To examine the influence of a range of individual player characteristics and match-related factors on activity profiles during professional Australian football matches. METHODS: Global positioning system (GPS) profiles were collected from 34 professional Australian football players from the same club over 15 competition matches. GPS data were classified into relative total and high-speed running (HSR; >20 km·h(-1)) distances. Individual player aerobic fitness was determined from a two-kilometre time trial conducted during the pre-season...
February 9, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28181777/differences-in-energy-expenditure-amount-of-physical-activity-and-physical-exertion-level-during-a-zumba-fitness-class-among-adult-women-who-are-normal-weight-overweight-and-obese
#15
Rodrigo Yáñez-Sepúlveda, Fernando Barraza-Gómez, Eduardo Báez-San Martin, Oscar F Araneda, Juan P Zavala, Gernot K Hecht, Marcelo Tuesta
BACKGROUND: One of the most popular expressions of massive group classes of aerobic physical activity is Zumba fitness. The aim of the study was to compare and relate the energy expenditure and the amount and intensity of physical effort during a Zumba fitness class in women with different Body Mass Index (BMI). METHODS: Body displacements of 61 adult women who performed a one-hour Zumba session were evaluated with triaxial accelerometers. In order to observe the effect of BMI women were divided into normal weight (n= 26), overweight (n= 21) and obese groups (n=14)...
February 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28181773/influence-of-the-fitbit-charge-hr-on-physical-activity-aerobic-fitness-and-disability-in-non-specific-back-pain-participants
#16
Rebecca Gordon, Saul Bloxham
BACKGROUND: Increasing levels of physical activity (PA) and aerobic fitness can reduce non-specific chronic low back pain (NSCLBP) yet patient's physical activity 1 and aerobic fitness 2 have been shown to be lower than healthy counterparts. Pedometers are effective at promoting PA 3, yet more 'advanced consumer level activity monitors' (AAMs) can provide greater feedback to the user. The aim of this study was to determine the effect of new advances in commercially available wearable technology on PA, aerobic fitness and disability of low back pain participants...
February 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28178772/training-effects-of-wheelchair-dance-on-aerobic-fitness-in-bedridden-individuals-with-severe-athetospastic-cerebral-palsy-rated-to-gmfcs-level-v
#17
Kyoko Terada, Ayako Satonaka, Yasuto Terada, Nobuharu Suzuki
BACKGROUND: There were few studies about training effects of wheelchair dance on aerobic fitness in the bedridden individuals with severe cerebral palsy for whom the traditional maximal or submaximal exercise tests were not applicable. As the oxygen pulse (O2P), the oxygen uptake divided by the heart rate, is regarded to be a relative measure of stroke volume and the O2P correlates to peak oxygen uptake, we would be able to assess the training effects of wheelchair dance on aerobic fitness in those individuals measuring O2P...
February 8, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28169561/bike-desks-in-the-classroom-energy-expenditure-physical-health-cognitive-performance-brain-functioning-and-academic-performance
#18
Tine Torbeyns, Bas de Geus, Stephen Bailey, Lieselot Decroix, Jeroen Van Cutsem, Kevin De Pauw, Romain Meeusen
BACKGROUND: Physical activity is positively associated with physical health, cognitive performance, brain functioning and academic performance. The aim of this study is to investigate the influence of bike desks in the classroom on adolescents' energy expenditure, physical health, cognitive performance, brain functioning and academic performance. METHODS: Forty-four adolescents were randomly assigned to control (CG) or intervention group (IG). During five months, the IG used a bike desk for four class hours/week...
February 7, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28166765/optitrain-a-randomised-controlled-exercise-trial-for-women-with-breast-cancer-undergoing-chemotherapy
#19
Y Wengström, K A Bolam, S Mijwel, C J Sundberg, M Backman, M Browall, J Norrbom, H Rundqvist
BACKGROUND: Women with breast cancer undergoing chemotherapy suffer from a range of detrimental disease and treatment related side-effects. Exercise has shown to be able to counter some of these side-effects and improve physical function as well as quality of life. The primary aim of the study is to investigate and compare the effects of two different exercise regimens on the primary outcome cancer-related fatigue and the secondary outcomes muscle strength, function and structure, cardiovascular fitness, systemic inflammation, skeletal muscle gene activity, health related quality of life, pain, disease and treatment-related symptoms in women with breast cancer receiving chemotherapy...
February 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28166118/all-extremity-exercise-training-improves-arterial-stiffness-in-older-adults
#20
Han-Kyul Kim, Chueh-Lung Hwang, Jeung-Ki Yoo, Moon-Hyon Hwang, Eileen M Handberg, John W Petersen, Wilmer W Nichols, Sofia Sofianos, Demetra D Christou
: Large elastic arteries stiffen with age which predisposes older adults to increased risk for cardiovascular disease. Aerobic exercise training is known to reduce the risk for cardiovascular disease, but the optimal exercise prescription for attenuating large elastic arterial stiffening in older adults is not known. PURPOSE: The purpose of this randomized controlled trial was to compare the effect of all-extremity high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on aortic pulse wave velocity (PWV) and carotid artery compliance in older adults...
February 4, 2017: Medicine and Science in Sports and Exercise
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