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https://www.readbyqxmd.com/read/28750061/endocrine-and-aggressive-responses-to-competition-are-moderated-by-contest-outcome-gender-individual-versus-team-competition-and-implicit-motives
#1
Jon K Oxford, Johanna M Tiedtke, Anna Ossmann, Dominik Özbe, Oliver C Schultheiss
This study examined hormonal responses to competition in relation to gender, social context, and implicit motives. Participants (N = 326) were randomly assigned to win or lose in a 10-round, virtual face-to-face competition, in same-sex individual- and team-competition contexts. Saliva samples, taken before and twice after the competition, were assayed for testosterone (T), estradiol (E), progesterone (P), and cortisol (C). Implicit needs for power (nPower) and affiliation (nAffiliation) were assessed with a picture-story exercise before the competition...
2017: PloS One
https://www.readbyqxmd.com/read/28749566/the-facilitators-and-barriers-of-physical-activity-among-aboriginal-and-torres-strait-islander-regional-sport-participants
#2
Claudie Péloquin, Thomas Doering, Stephanie Alley, Amanda Rebar
BACKGROUND: Disparities in health perspectives between Indigenous and non-Indigenous populations are major concerns in many of the world's well-developed nations. Indigenous populations are largely less healthy, more prone to chronic diseases, and have an earlier overall mortality than non-Indigenous populations. Low levels of physical activity (PA) contribute to the high levels of disease in Indigenous Australians. METHOD: Qualitative analysis of structured one-on-one interviews discussing PA in a regional setting...
July 27, 2017: Australian and New Zealand Journal of Public Health
https://www.readbyqxmd.com/read/28747408/respiratory-muscle-endurance-training-reduces-the-o2-cost-of-cycling-and-perceived-exertion-in-obese-adolescents
#3
Desy Salvadego, Alessandro Sartorio, Fiorenza Agosti, Gabriella Tringali, Alessandra Patrizi, Miriam Isola, Antonella LoMauro, Andrea Aliverti, Bruno Grassi
In obesity the increased O2 cost of breathing negatively affects the O2 cost of exercise and exercise tolerance. The purpose of the study was to determine whether, in obese adolescents, the addition of respiratory muscle endurance training (RMET) (isocapnic hyperpnea) to a standard body mass reduction program decreases the O2 cost of exercise and perceived exertion and increases exercise tolerance. 9 male obese adolescents (16.0±1.4 years [x±SD], body mass 114.4±22.3 kg) underwent 3 weeks of RMET (5 days/week); 8 age-and sex- matched obese adolescents underwent the standard body mass reduction program (CTRL)...
July 26, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28746951/-exercise-therapy-in-german-medical-rehabilitation-an-analysis-based-on-quantitative-routine-data
#4
Silke Brüggemann, Daniela Sewöster, Angela Kranzmann
Aim of this study This study describes the quantitative importance of exercise therapy in German medical rehabilitation based on 2014 routine data of the German Pension Insurance. It also shows changes in comparison with data from 2007. Methods Data from 710012 rehabilitation discharge letters comprising 83677802 treatments from central indications in medical rehabilitation were analysed descriptively. Results Overall 35.4% of treatments could be classified as exercise therapy. Total and relative duration, percentage of individual treatment and kind of exercise treatment varied between indications in 2007 as well as in 2014...
July 26, 2017: Die Rehabilitation
https://www.readbyqxmd.com/read/28742635/long-exercise-test-in-the-interattack-period-of-periodic-paralysis-a-useful-and-sensitive-diagnostic-tool
#5
Jiaoting Jin, Fangfang Hu, Min Li, Suhang Shang, Xing Qin, Hongmei Cao, Jingxia Dang
PURPOSE: The reference values of long exercise test are inconsistent in previous studies. Our research aims to determine the reference values and improve diagnostic efficiency of long exercise test in periodic paralysis. METHODS: In this study, 100 healthy controls, 35 non-periodic paralysis patients, and 47 patients with periodic paralysis were recruited. The procedures of long exercise test were conducted following McMannis(1986) method. RESULTS: The decrease rate in compound muscle action potential amplitudes was correlated with gender, and it was not influenced by age, height, weight, and exercise...
July 24, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28742509/persistent-m%C3%A3-llerian-duct-syndrome-a-novel-mutation-in-the-%C3%AE-nti-m%C3%A3-llerian-%C3%AE-ormone-gene
#6
Ayça Altincik, Fahri Karaca, Hüseyin Onay
BACKGROUND AND OBJECTIVE: Persistent Müllerian duct syndrome (PMDS) is a relatively rare form of 46,XY disorder of sex development caused by the failure of formation, release or action of anti-Müllerian hormone (AMH) in intrauterine life. In this report we describe a case diagnosed with PMDS with a novel homozygous mutation in the AMH gene. CASE REPORT: A 4-month-old male presented with bilateral cryptorchidism and normal external genitalia. The laboratory examination revealed normal gonadotropin levels for his age (FSH: 0...
April 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28729387/leg-blood-flow-is-impaired-during-small-muscle-mass-exercise-in-copd-patients
#7
Ulrik Winning Iepsen, Gregers Druedal Wibe Munch, Mette Rugbjerg, Camilla Koch Ryrsø, Niels Secher, Ylva Hellsten, Peter Lange, Bente Klarlund Pedersen, Pia Thaning, Stefan P Mortensen
Skeletal muscle blood flow is regulated to match the oxygen demand and dysregulation could contribute to exercise intolerance in patients with COPD. We measured leg hemodynamics and metabolites from vasoactive compounds in muscle interstitial fluid and plasma at rest, during one-legged knee-extensor exercise, and during arterial infusions of sodium nitroprusside (SNP) and acetylcholine (ACh), respectively. Ten patients with moderate to severe COPD and eight age- and sex matched healthy controls were studied...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28727231/nulliparity-is-associated-with-subtle-adverse-metabolic-outcomes-in-overweight-obese-mothers-and-their-offspring
#8
Sumudu N Seneviratne, José G B Derraik, Yannan Jiang, Lesley M E McCowan, Silmara Gusso, Janene B Biggs, Graham K Parry, Valentina Chiavaroli, Wayne S Cutfield, Paul L Hofman
BACKGROUND: We aimed to evaluate metabolic outcomes in overweight/obese nulliparous and multiparous women and their offspring. STUDY DESIGN: Seventy-two overweight and obese women who participated in a randomized controlled trial of exercise in pregnancy were included in the study, comparing 18 nulliparous and 54 multiparous women and their singleton offspring. Women were assessed at 19 and 36 weeks of gestation. Fetal growth was measured using standard obstetric ultrasound techniques...
July 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28724442/impact-of-obesity-on-the-response-to-tumor-necrosis-factor-inhibitors-in-axial-spondyloarthritis
#9
Raphael Micheroli, Monika Hebeisen, Lukas M Wildi, Pascale Exer, Giorgio Tamborrini, Jürg Bernhard, Burkhard Möller, Pascal Zufferey, Michael J Nissen, Almut Scherer, Adrian Ciurea
BACKGROUND: Few studies have investigated the impact of obesity on the response to tumor necrosis factor inhibitors (TNFi) in patients with axial spondyloarthritis (axSpA). The aim of our study was to investigate the impact of different body mass index (BMI) categories on TNFi response in a large cohort of patients with axSpA. METHODS: Patients with axSpA within the Swiss Clinical Quality Management (SCQM) program were included in the current study if they fulfilled the Assessment in Spondyloarthritis International Society (ASAS) criteria for axSpA, started a first TNFi after recruitment, and had available BMI data as well as a baseline and follow-up visit at 1 year (±6 months)...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28722467/the-influence-of-lower-extremity-lean-mass-on-landing-biomechanics-during-prolonged-exercise
#10
Melissa M Montgomery, Amanda J Tritsch, John R Cone, Randy J Schmitz, Robert Henson, Sandra J Shultz
CONTEXT:   The extent to which lower extremity lean mass (LELM) relative to total body mass influences one's ability to maintain safe landing biomechanics during prolonged exercise when injury incidence increases is unknown. OBJECTIVES:   To examine the influence of LELM on (1) pre-exercise lower extremity biomechanics and (2) changes in biomechanics during an intermittent exercise protocol (IEP) and (3) determine whether these relationships differ by sex. We hypothesized that less LELM would predict higher-risk baseline biomechanics and greater changes toward higher-risk biomechanics during the IEP...
July 19, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28720249/using-wheel-availability-to-shape-running-behavior-of-the-rat-towards-improved-behavioral-and-neurobiological-outcomes
#11
Julia C Basso, Joan I Morrell
BACKGROUND: Though voluntary wheel running (VWR) has been used extensively to induce changes in both behavior and biology, little attention has been given to the way in which different variables influence VWR. This lack of understanding has led to an inability to utilize this behavior to its full potential, possibly blunting its effects on the endpoints of interest. NEW METHOD: We tested how running experience, sex, gonadal hormones, and wheel apparatus influence VWR in a range of wheel access "doses"...
July 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28716955/acute-exercise-enhances-the-consolidation-of-fear-extinction-memory-and-reduces-conditioned-fear-relapse-in-a-sex-dependent-manner
#12
Courtney A Bouchet, Brian A Lloyd, Esteban C Loetz, Caroline E Farmer, Mykola Ostrovskyy, Natalie Haddad, Rebecca M Foright, Benjamin N Greenwood
Fear extinction-based exposure therapy is the most common behavioral therapy for anxiety and trauma-related disorders, but fear extinction memories are labile and fear tends to return even after successful extinction. The relapse of fear contributes to the poor long-term efficacy of exposure therapy. A single session of voluntary exercise can enhance the acquisition and consolidation of fear extinction in male rats, but the effects of exercise on relapse of fear after extinction are not well understood. Here, we characterized the effects of 2 h of voluntary exercise during the consolidation phase of contextual or auditory fear extinction learning on long-term fear extinction memory and renewal in adult, male and female, Long-Evans rats...
August 2017: Learning & Memory
https://www.readbyqxmd.com/read/28715555/application-of-a-lifestyle-based-tool-to-estimate-premature-cardiovascular-disease-events-in-young-adults-the-coronary-artery-risk-development-in-young-adults-cardia-study
#13
Holly C Gooding, Hongyan Ning, Matthew W Gillman, Christina Shay, Norrina Allen, David C Goff, Donald Lloyd-Jones, Stephanie Chiuve
Importance: Few tools exist for assessing the risk for early atherosclerotic cardiovascular disease (ASCVD) events in young adults. Objective: To assess the performance of the Healthy Heart Score (HHS), a lifestyle-based tool that estimates ASCVD events in older adults, for ASCVD events occurring before 55 years of age. Design, Setting, and Participants: This prospective cohort study included 4893 US adults aged 18 to 30 years from the Coronary Artery Risk Development in Young Adults (CARDIA) study...
July 17, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28715424/atrophy-of-gluteus-maximus-among-women-with-a-history-of-chronic-low-back-pain
#14
Amy H Amabile, John H Bolte, Saskia D Richter
BACKGROUND: Although the relationship between low back pain (LBP) and the size of certain trunk muscles has been extensively studied, the relationship between gluteus maximus (GM) size and LBP has been only minimally examined. Determining whether such a relationship exists would help improve our understanding of the etiology of LBP, and possibly provide a rationale for the use of therapeutic exercise interventions targeting GM with LBP patients. The objective of this study was to compare gluteus maximus cross-sectional area in individuals with chronic LBP, and in a group of individuals without LBP...
2017: PloS One
https://www.readbyqxmd.com/read/28714404/current-and-emerging-strategies-in-osteoporosis-management
#15
Stefka Ivanova, Liliya Vasileva
The abnormal loss of bone tissue is defined as osteoporosis. Increased risk of fractures, low bone mineral density (BMD) and loss of the structural and biomechanical properties of the bone tissue characterize this pathological condition. Physiologically bone undergoes a continuous remodeling process involving balance between the activity of osteoblast and osteoclast. Disruption in this balanced condition increases the risk of osteoporosis. Both sexes are affected, but with higher prevalence in women after menopause...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28709774/the-association-between-cardio-respiratory-fitness-and-cognition-in-schizophrenia
#16
Tom Langerud Holmen, Jens Egeland, Eivind Andersen, Therese Torgersen Bigseth, John Abel Engh
OBJECTIVE: Schizophrenia is associated with reduced cardio-respiratory fitness (CRF), and impaired cognition is a core feature of the disorder. Despite their particular significance to schizophrenia disparately, the relationship between these two variables has not yet been thoroughly assessed. In this study we aimed to investigate naturally occurring associations between CRF and all cognitive domains within this patient population. METHOD: Eighty outpatients with schizophrenia spectrum disorders participated in the study...
July 11, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28709517/continuity-of-sleep-problems-from-adolescence-to-young-adulthood-results-from-a-longitudinal-study
#17
Yaqoot Fatima, Suhail A R Doi, Jake M Najman, Abdullah Al Mamun
BACKGROUND: Considering the lack of evidence on incidence and continuity of sleep problems from adolescence to young adulthood, this study explores sleep problems' incidence and their continuation rates from 14 to 21 years. METHODS: Sleep data from the 14-year (n = 4,924) and 21-year (n = 3660) follow-up of the Mater-University of Queensland Study of Pregnancy cohort were used. Sociodemographic, lifestyle, and psychological conditions were explored for their role in sleep problems...
August 2017: Sleep Health
https://www.readbyqxmd.com/read/28708776/sex-specific-maximum-predicted-heart-rate-and-its-prognosis-for-mortality-and-myocardial-infarction
#18
Haitham M Ahmed, Mouaz H Al-Mallah, Steven J Keteyian, Clinton A Brawner, Jonathan K Ehrman, D I Zhao, Eliseo Guallar, Michael J Blaha, Erin D Michos
PURPOSE: Maximum predicted heart rate (MPHR) is traditionally calculated by (220 - age). However, this formula's validity has been questioned in women. The purpose of this study was to derive sex-specific formulas for MPHR in a clinical population and compare their prognostic significance with the traditional formula. METHODS: This was a retrospective cohort of adults referred for exercise treadmill testing between 1991 and 2009. Peak heart rate versus age was plotted by sex, and linear regression analysis was used to derive sex-specific MPHR formulas...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28707733/a-new-equation%C3%A2-to-predict-peak-vo2-in-obese-patients-during-cardiopulmonary-exercise-testing
#19
Alan Carlos Brisola Barbosa, Evandro Fornias Sperandio, Bárbara de Barros Gonze, Giovanna Domingues Spina, Rodolfo Leite Arantes, Antônio Ricardo de Toledo Gagliardi, Marcello Romiti, Victor Zuniga Dourado
We aimed to develop an equation to predict peak VO2 in obese subjects undergoing CPET. In addition, we evaluated and compared three published equations. We randomized 346 obese subjects undergoing CPET into a group for developing the equation (n = 272) and a group for cross-validation (n = 74), compared through the Bland and Altman method. Height, sex and age were responsible for 85·5% of total variability of the peak VO2. Additional 1% and 0·7% of the variability were, respectively, explained by physical inactivity and diabetes...
July 14, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28706360/osteoporosis-prevention-and-management
#20
Muralidhar V Pai
Osteoporosis, defined by BMD at the hip or lumbar spine that is less than or equal to 2.5 standard deviations below the mean BMD of a young-adult reference population, is the most common bone disease in humans affecting both sexes and all races. It's a silent killer affecting the quality of life due to fractures and postural changes. In osteoporosis there is an imbalance between bone formation and bone resorption in favor of latter. Preventive measures and treatments are available to combat this evil. Counseling is the integral part of prevention as well as treatment of osteoporosis...
August 2017: Journal of Obstetrics and Gynaecology of India
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