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https://www.readbyqxmd.com/read/28326352/aging-lifestyle-factors-hormones-and-bone-health-in-singaporean-men
#1
Victor Hng Hang Goh, William George Hart
PURPOSE: The present study examined how age, bodyweight, body fat, regular exercise and some endocrine factors are associated with osteoporosis, spine bone mineral density (Sbmd) and femoral neck bone mineral density (Fnbmd) in Singaporean men. METHODS: Body composition and bone scans of lumbar spine at L2-L4 and hip were carried out with duel-energy X-ray absorptiometry (DXA). Anthropometric parameters were measured and demographic data, medical history and exercise schedule were collected via a questionnaire...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28324962/design-of-a-dual-hormone-model-predictive-control-for-artificial-pancreas-with-exercise-model
#2
Navid Resalat, Joseph El Youssef, Ravi Reddy, Peter G Jacobs
The Artificial Pancreas (AP) is a new technology for helping people with type 1 diabetes to better control their glucose levels through automated delivery of insulin and optionally glucagon in response to sensed glucose levels. In a dual hormone AP, insulin and glucagon are delivered automatically to the body based on glucose sensor measurements using a control algorithm that calculates the amount of hormones to be infused. A dual-hormone MPC may deliver insulin continuously; however, it must avoid continuous delivery of glucagon because nausea can occur from too much glucagon...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324125/exercise-and-cancer-from-healthy-to-therapeutic
#3
REVIEW
Manja Idorn, Per Thor Straten
Exercise improves functional capacity and patient-reported outcomes across a range of cancer diagnoses. The mechanisms behind this protection have been largely unknown, but exercise-mediated changes in body composition, sex hormone levels, systemic inflammation, and immune cell function have been suggested to play a role. We recently demonstrated that voluntary exercise leads to an influx of immune cells in tumors, and a more than 60% reduction in tumor incidence and growth across several mouse models. Given the common mechanisms of immune cell mobilization in mouse and man during exercise, we hypothesize that this link between exercise and the immune system can be exploited in cancer therapy in particular in combination with immunotherapy...
March 21, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28319589/exercise-improves-v-combining-dot-above-o-2max-and-body-composition-in-adt-treated-prostate-cancer-patients
#4
Bradley A Wall, Daniel A Galvão, Naeem Fatehee, Dennis R Taaffe, Nigel Spry, David Joseph, Jeffrey J Hebert, Robert U Newton
INTRODUCTION: Prostate cancer is the most common cancer in men and patients treated with androgen deprivation therapy (ADT) experience unfavourbale changes in body composition and associated metabolic complications, which can increase the risk of cardiovascular disease. We examined the effect of a 6-month program of aerobic and resistance exercise aimed at improving body composition and cardiorespiratory health in this population. METHODS: Ninety-seven men (43-90 years) with localized prostate cancer receiving ADT were randomized to either exercise (EX, n=50) or usual care (CON, n=47)...
March 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28315565/heart-rate-variability-in-normal-weight-patients-with-polycystic-ovary-syndrome
#5
Celal Kilit, Türkan Paşalı Kilit
OBJECTIVE: Polycystic ovary syndrome (PCOS) is an endocrine disease closely related to several risk factors of cardiovascular disease. Obese women with PCOS show altered autonomic modulation. The results of studies investigating cardiac autonomic functions of normal-weight women with PCOS are conflicting. The aim of the study was to assess the reactivity of cardiac sympathovagal balance in normal-weight women with PCOS by heart rate variability analysis. METHODS: We examined the heart rate variability in 60 normal-weight women with PCOS and compared them with that in 60 age-matched healthy women having a similar metabolic profile...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28306130/brain-connectivity-is-altered-by-extreme-physical-exercise-during-non-rem-sleep-and-wakefulness-indications-from-eeg-and-fmri-studies
#6
D Menicucci, C Gentili, A Piarulli, M Laurino, S Pellegrini, F Mastorci, R Bedini, D Montanaro, L Sebastiani, A Gemignani
Brain connectivity is associated to behavioral states (e.g. wake, sleep) and modified by physical activity although, to date, it is not clear which components (e.g. hypothalamus-pituitary-adrenal axis hormones, cytokines) associated to the exercise are involved. In this pilot study, we used extreme exercise (UltraTriathlon) as a model to investigate physical-activity-related changes of brain connectivity. We studied post-race brain synchronization during wakefulness and sleep as well as possible correlations between exercise-related cytokines/hormones and synchronization features...
December 1, 2016: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28301435/different-cluster-sets-result-in-similar-metabolic-endocrine-and-perceptual-responses-in-trained-men
#7
James J Tufano, Jenny A Conlon, Sophia Nimphius, Jonathan M Oliver, Andreas Kreutzer, G Gregory Haff
The purpose of this study was to compare the kinematic, metabolic, endocrine, and perceptual responses of three back squat protocols with equal loads, number of repetitions, and total rest duration. Eight strength-trained men performed 36 back squats using 75% 1RM and 420 s of total rest during basic cluster sets of 4 (CS4), rest-redistribution sets of 4 (RR4), and rest-redistribution sets of 1 (RR1). Ratings of perceived exertion (RPE), blood lactate (La), mean velocity maintenance (MVM), and mean velocity loss (MVL) were measured during exercise...
March 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28295487/sperm-dna-fragmentation-as-a-result-of-ultra-endurance-exercise-training-in-male-athletes
#8
D Vaamonde, C Algar-Santacruz, A Abbasi, J M García-Manso
Intensive sports practice seems to exert negative effects on semen parameters; in order to assess these effects, the objective of this study was to assess semen, including DNA fragmentation, and hormone parameters in elite triathletes. Twelve high-level triathletes preparing for a National Triathlon Championship participated in the study. The qualitative sperm parameters analysed were volume, sperm count, motility, morphology and DNA fragmentation; when needed, additional testing was performed. Assessed hormones were testosterone (T), cortisol (C) and testosterone-cortisol ratio (T/C)...
March 15, 2017: Andrologia
https://www.readbyqxmd.com/read/28290940/effects-of-combat-deployment-on-anthropometrics-and-physiological-status-of-u-s-army-special-operations-forces-soldiers
#9
Emily K Farina, Jonathan C Taylor, Gary E Means, Kelly W Williams, Nancy E Murphy, Lee M Margolis, Stefan M Pasiakos, Harris R Lieberman, James P McClung
INTRODUCTION: U.S. Army Special Operations Forces (SOF) soldiers deploy frequently and conduct military operations through special warfare and surgical strike capabilities. Tasks required to execute these capabilities may induce physical and mental stress and have the potential to degrade soldier physiological status. No investigations have longitudinally characterized whether combat deployment alters anthropometrics or biochemical markers of physiological status in a SOF population of frequent deployers...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28290159/the-unexplored-crossroads-of-the-female-athlete-triad-and-iron-deficiency-a-narrative-review
#10
REVIEW
Dylan L Petkus, Laura E Murray-Kolb, Mary Jane De Souza
Despite the severity and prevalence of iron deficiency in exercising women, few published reports have explored how iron deficiency interacts with another prevalent and severe condition in exercising women: the 'female athlete triad.' This review aims to describe how iron deficiency may interact with each component of the female athlete triad, that is, energy status, reproductive function, and bone health. The effects of iron deficiency on energy status are discussed in regards to thyroid function, metabolic fuel availability, eating behaviors, and energy expenditure...
March 13, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28288203/the-effects-of-menstrual-cycle-phase-on-physical-performance-in-female-soccer-players
#11
Ross Julian, Anne Hecksteden, Hugh H K Fullagar, Tim Meyer
BACKGROUND: Female soccer has grown extensively in recent years, however differences in gender-specific physiology have rarely been considered. The female reproductive hormones which rise and fall throughout the menstrual cycle, are known to affect numerous cardiovascular, respiratory, thermoregulatory and metabolic parameters, which in turn, may have implications on exercise physiology and soccer performance. Therefore, the main aim of the present study was to investigate potential effects of menstrual cycle phase on performance in soccer specific tests...
2017: PloS One
https://www.readbyqxmd.com/read/28285470/the-effect-of-a-muscle-weight-bearing-and-aerobic-exercise-program-on-the-body-composition-muscular-strength-biochemical-markers-and-bone-mass-of-obese-patients-who-have-undergone-gastric-bypass-surgery
#12
Luciana Campanha-Versiani, Danielle Aparecida Gomes Pereira, Giane Amorim Ribeiro-Samora, Adauto Versiani Ramos, Maria Fatima H de Sander Diniz, Luiz Armando De Marco, Maria Marta Sarquis Soares
BACKGROUND: The effect of an exercise program on the body composition, muscular strength (MS), biochemical markers, and bone mineral density (BMD) of individuals undergoing gastric bypass is unclear. We assessed lean mass (LM), MS, bone remodeling markers, and BMD before and after supervised weight-bearing and aerobic exercise training in obese patients who underwent Roux-en-Y gastric bypass (RYGB). METHODS: This study included 37 obese patients (81.1% women, mean age 38...
March 11, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28277430/perceived-exertion-is-affected-by-the-submaximal-set-configuration-used-in-resistance-exercise
#13
Mayo Xian, Iglesias-Soler Eliseo, Kingsley J Derek
Previously, perceived exertion in submaximal resistance exercise protocols was reported to be affected by the intensity of load followed by work-to-rest ratio. Nevertheless, the effect of set configuration, which entails the metabolic, hormonal, and neuromuscular implication of the session is currently unknown, despite that perceived exertion discriminates these differences. We aimed to analyze the effect of three submaximal set configurations on perceived exertion and their relationship with velocity as a mechanical measure of fatigue...
March 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28267126/psychological-and-physical-environmental-factors-in-the-development-of-incontinence-in-adults-and-children-a-comprehensive-review
#14
Alexander von Gontard, Tom P V M de Jong, Jasmin Katrin Badawi, Kathleen A OʼConnell, Ann T Hanna-Mitchell, Anka Nieuwhof-Leppink, Linda Cardozo
The aim of this review was to identify etiological environmental factors related to incontinence in children and adults. A variety of etiological environmental factors for the development of incontinence were identified. In children, these encompass stressful life events and trauma, family dysfunction, parental psychopathology, school-related stressors, toilet or "potty" training, fluid consumption habits, housing conditions, and the availability of toilets. In adults, physical exercise, obesity, working conditions, fluid intake, and the availability of toilets play a role...
March 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28262570/peripheral-muscle-abnormalities-in-cystic-fibrosis-etiology-clinical-implications-and-response-to-therapeutic-interventions
#15
Mathieu Gruet, Thierry Troosters, Samuel Verges
Peripheral muscle dysfunction is an important systemic consequence of cystic fibrosis (CF) with major clinical implications, such as exercise intolerance and reduced quality of life. Evidence is now accumulating that lack of physical activity is unlikely to be the sole explanation for peripheral muscle dysfunction of patients with CF. Particularly, the demonstration of CFTR expression in both murine and human skeletal muscle suggests the potential implication of intrinsic CF-related factors. By combining data from both human and animal models, this review describes CF peripheral muscle abnormalities and critically reviews the advances in understanding the impact of the underlying mechanisms...
March 2, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28257941/the-effect-of-moderate-versus-severe-simulated-altitude-on-appetite-gut-hormones-energy-intake-and-substrate-oxidation-in-men
#16
Jamie Matu, Kevin Deighton, Theocharis Ispoglou, Lauren Duckworth
Acute exposure to high altitude (>3500 m) is associated with marked changes in appetite regulation and substrate oxidation but the effects of lower altitudes are unclear. This study examined appetite, gut hormone, energy intake and substrate oxidation responses to breakfast ingestion and exercise at simulated moderate and severe altitudes compared with sea-level. Twelve healthy males (mean ± SD; age 30 ± 9years, body mass index 24.4 ± 2.7 kg·m(-2)) completed in a randomised crossover order three, 305 min experimental trials at a simulated altitude of 0 m, 2150 m (∼15...
February 28, 2017: Appetite
https://www.readbyqxmd.com/read/28253507/hormonal-and-metabolic-responses-to-a-single-bout-of-resistance-exercise-in-prader-willi-syndrome%C3%A2
#17
Daniela A Rubin, Susan J Clark, Andrea M Haqq, Diobel M Castner, Jason Ng, Daniel A Judelson
BACKGROUND: Prader-Willi syndrome (PWS) is characterized by excessive adiposity. Excess adiposity negatively affects hormonal and metabolic responses to aerobic exercise. This study determined whether PWS and/or adiposity affected hormonal and metabolic responses to resistance exercise. METHODS: Eleven children with PWS (11.4 ± 3.1 years, 43.9 ± 7.5% body fat), 12 lean children (9.3 ± 1.4 years, 18.3 ± 4.9% body fat), and 13 obese children (9.6 ± 1.3 years, 40...
March 2, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28253086/oocyte-developmental-competence-insights-from-cross-species-differential-gene-expression-and-human-oocyte-specific-functional-gene-networks
#18
Fernando H Biase
Understanding oocyte developmental competence remains a key challenge for reproductive biology and systems sciences. The transcriptome of oocytes in eutherians is highly complex and is associated with the success of embryo development. Due to sample limitations from humans, animal models are used for investigation of the oocyte transcriptome. Nonetheless, little is known about the diversity of the oocyte transcriptome across eutherians. In this report, comprehensive investigation of 7 public data sets in 4 species, human, macaque, mice, and cattle, shows that 16,572 genes are expressed in oocytes...
March 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28248693/calcium-supplementation-attenuates-disruptions-in-calcium-homeostasis-during-exercise
#19
Vanessa D Sherk, Sarah J Wherry, Daniel W Barry, Karen L Shea, Pamela Wolfe, Wendy M Kohrt
An exercise-induced decrease in serum ionized calcium (iCa) is thought to trigger an increase in parathyroid hormone (PTH), which can stimulate bone resorption. PURPOSE: The purpose of this study was to determine whether taking a chewable calcium (Ca) supplement 30 minutes before exercise mitigates disruptions in Ca homeostasis and bone resorption in competitive male cyclists. METHODS: Fifty-one men aged 18 to 45 y were randomized to take either 1000 mg Ca (CA) or placebo (PL) 30 minutes before a simulated 35-km cycling time trial...
February 28, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28245784/closing-the-loop-on-exercise-in-type-1-diabetes
#20
Lia Bally, Hood Thabit
BACKGROUND: Despite its well-established health benefits, exercise imposes challenges on glucose control in individuals with type 1 diabetes due to to the complex interactions between exercise-induced effects on glucose metabolism and exogenous insulin therapy. Although clinical guidelines for exercise management in type 1 diabetes are available, implementation is challenging in daily -life. The risk of exercise-induced dysglycaemia deters many people with type 1 diabetes from participating and benefiting from exercise...
February 28, 2017: Current Diabetes Reviews
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