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https://www.readbyqxmd.com/read/29471456/effects-of-resistance-training-endurance-training-and-whole-body-vibration-on-lean-body-mass-muscle-strength-and-physical-performance-in-older-people-a-systematic-review-and-network-meta-analysis
#1
Chih-Chin Lai, Yu-Kang Tu, Tyng-Guey Wang, Yi-Ting Huang, Kuo-Liong Chien
Background: A variety of different types of exercise are promoted to improve muscle strength and physical performance in older people. Objective: We aimed to determine the relative effects of resistance training, endurance training and whole-body vibration on lean body mass, muscle strength and physical performance in older people. Design: A systematic review and network meta-analysis. Subjects: Adults aged 60 and over...
February 17, 2018: Age and Ageing
https://www.readbyqxmd.com/read/29471132/high-intensity-body-weight-training-is-comparable-to-combined-training-in-changes-in-muscle-mass-physical-performance-inflammatory-markers-and-metabolic-health-in-postmenopausal-women-at-high-risk-for-type-2-diabetes-mellitus-a-randomized-controlled-clinical
#2
Fernanda Maria Martins, Aletéia de Paula Souza, Paulo Ricardo Prado Nunes, Márcia Antoniazi Michelin, Eddie Fernando Candido Murta, Elisabete Aparecida Mantovani Rodrigues Resende, Erick Prado de Oliveira, Fábio Lera Orsatti
OBJECTIVE: This study compared the effects of 12 weeks of high-intensity interval body weight training (HIBWT) with combined training (COMT; aerobic and resistance exercises on body composition, a 6-minute walk test (6MWT; physical performance), insulin resistance (IR) and inflammatory markers in postmenopausal women (PW) at high risk of type 2 diabetes mellitus (TDM2). METHODS: In this randomized controlled clinical study, 16 PW at high risk of TDM2 were randomly allocated into two groups: HIBWT (n = 8) and COMT (n = 8)...
February 19, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29471131/aerobic-and-strength-training-induce-changes-in-oxidative-stress-parameters-and-elicit-modifications-of-various-cellular-components-in-skeletal-muscle-of-aged-rats
#3
Thais Ceresér Vilela, Pauline Souza Effting, Giulia Dos Santos Pedroso, Hemelin Farias, Lara Paganini, Helen Sorato Rebelo, Renata Tiescoski Nesi, Vanessa Moraes de Andrade, Ricardo Aurino de Pinho
Skeletal muscle aging is associated with loss of mass, function, and strength-a condition known as sarcopenia. It has been reported that sarcopenia can be attenuated by physical exercise. Therefore, we investigated whether 2 different physical exercise protocols could modulate and induce changes in oxidative and inflammatory parameters, as well as in BDNF and DNA repair enzyme levels in skeletal muscle tissue of aged rats. Aging Wistar rats performed treadmill or strength training for 50 min 3 to 4 times a week for 8 weeks...
February 19, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29470956/metabolomic-insights-into-the-effects-of-thyroid-hormone-on-rana-lithobates-catesbeiana-metamorphosis-using-whole-body-matrix-assisted-laser-desorption-ionization-mass-spectrometry-imaging-maldi-msi
#4
Teesha C Luehr, Emily M Koide, Xiaodong Wang, Jun Han, Christoph H Borchers, Caren C Helbing
Anuran metamorphosis involves the transformation of an aquatic tadpole into a juvenile frog. This process is completely dependent upon thyroid hormones (THs). Although much research has been focused on changes in gene expression programs during this postembryonic developmental period, transitions in the metabolic profiles are relatively poorly understood. Matrix Assisted Laser Desorption/Ionization-Mass Spectrometry Imaging (MALDI-MSI) is a technique that generates highly multiplexed mass spectra while retaining spatial location information on a thin tissue section...
February 19, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29470824/turning-up-the-heat-an-evaluation-of-the-evidence-for-heating-to-promote-exercise-recovery-muscle-rehabilitation-and-adaptation
#5
REVIEW
Hamish McGorm, Llion A Roberts, Jeff S Coombes, Jonathan M Peake
Historically, heat has been used in various clinical and sports rehabilitation settings to treat soft tissue injuries. More recently, interest has emerged in using heat to pre-condition muscle against injury. The aim of this narrative review was to collate information on different types of heat therapy, explain the physiological rationale for heat therapy, and to summarise and evaluate the effects of heat therapy before, during and after muscle injury, immobilisation and strength training. Studies on skeletal muscle cells demonstrate that heat attenuates cellular damage and protein degradation (following in vitro challenges/insults to the cells)...
February 22, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29470183/the-central-effects-of-androgenic-anabolic-steroid-use
#6
Marek Mędraś, Anna Brona, Paweł Jóźków
: Millions of men use androgenic-anabolic steroids (AAS) to stimulate muscle growth and improve physical appearance. Although 1 out of 3 people who uses androgenic-anabolic steroids develops a steroid use disorder, the effects of the drugs on the central nervous system and the psyche are still not well understood. Although most addictive substances improve mood immediately after administration, AAS exert less pronounced euphoric effects. Instead, they are primarily taken for the delayed gratification of increased muscle mass...
February 21, 2018: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/29469995/hypobaric-live-high-train-low-does-not-improve-aerobic-performance-more-than-live-low-train-low-in-cross-country-skiers
#7
Paul Robach, Joar Hansen, Aurélien Pichon, Anne-Kristine Meinild Lundby, Sune Dandanell, Gunnar Slettaløkken Falch, Daniel Hammarström, Dominik H Pesta, Christoph Siebenmann, Stefanie Keiser, Patricia Kérivel, Jon Elling Whist, Bent R Rønnestad, Carsten Lundby
Live high - train low (LHTL) using hypobaric hypoxia was previously found to improve sea-level endurance performance in well-trained individuals, however confirmatory controlled data in athletes are lacking. Here we test the hypothesis that natural-altitude LHTL improves aerobic performance in cross-country skiers, in conjunction with expansion of total hemoglobin mass (Hbmass , carbon-monoxide rebreathing technique) promoted by accelerated erythropoiesis. Following duplicate baseline measurements at sea level over the course of two weeks, nineteen Norwegian cross-country skiers (three women, sixteen men, age 20±2 yr, maximal oxygen uptake (VO2 max) 69±5 ml...
February 22, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29469953/risk-stratification-using-lean-body-mass-in-patients-undergoing-transcatheter-aortic-valve-replacement
#8
Hirofumi Hioki, Yusuke Watanabe, Ken Kozuma, Masanori Yamamoto, Toru Naganuma, Motoharu Araki, Norio Tada, Shinichi Shirai, Futoshi Yamanaka, Akihiro Higashimori, Kazuki Mizutani, Minoru Tabata, Kensuke Takagi, Hiroshi Ueno, Kentaro Hayashida
BACKGROUND: The prognostic impact of skeletal muscle mass, assessed using lean body mass (LBM), remain unclear in patients who underwent transcatheter aortic valve replacement (TAVR). The aim of this study to assess prognostic impact of LBM on mortality after TAVR. METHODS: We assessed 1,613 patients (median age 85 years, 70% female) who underwent TAVI from October 2013 to April 2016 using OCEAN (Optimized transCathEter vAlvular interveNtion)-TAVI registry data...
February 22, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29469237/determination-of-15-polycyclic-aromatic-hydrocarbons-in-aquatic-products-by-solid-phase-extraction-and-gc-ms
#9
Qiying Liu, Yuanming Guo, Xiumei Sun, Qing Hao, Xin Cheng, Lu Zhang
We propose a method for the simultaneous determination of 15 kinds of polycyclic aromatic hydrocarbons in marine samples (muscle) employing gas chromatography with mass spectrometry after saponification reaction with ultrasonic and solid phase extraction. The experimental conditions were optimized by response surface method. In addition, the effects of different lye and extractants on polycyclic aromatic hydrocarbons extraction were discussed and the result was the saturated sodium carbonate was first used as the primary saponification reaction and extracted with 10 mL of ethyl acetate and the second time 1 mol/L of sodium hydroxide and 10 mL of n-hexane were used to achieve better results...
February 22, 2018: Journal of Separation Science
https://www.readbyqxmd.com/read/29468915/association-between-sarcopenia-and-erectile-dysfunction-in-males-with-type-ii-diabetes-mellitus
#10
Sema Uçak, Rıdvan Sivritepe, Oğuzhan Kara, Ecem Sevim, Damla Ortaboz, Eyüp Veli Küçük, Sabri Atay, Arzu Çalışgan Baygül
BACKGROUND: The prevalence rates for both sarcopenia and erectile dysfunction (ED) gradually increase in middle-aged and elderly diabetic male population and they impair physical functioning, sexual functioning, and quality of life. The aim of the present study was to evaluate the sarcopenia in patients with diabetic ED. METHODS: The study included 98 male patients with type II diabetes mellitus (DM) aged 18-80 years. Blood chemistry and hormone levels were obtained...
February 22, 2018: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29468291/lymphangiomatosis-a-rare-entity-presenting-with-involvement-of-the-sacral-plexus
#11
Megan K Mills, Bryn Putbrese, Hailey Allen, Sarah E Stilwill
Lymphangiomatosis is an uncommon disease process characterized by multisystem lymphatic malformations that can involve numerous body systems, including organs, muscles, soft tissues, and bones. Involvement of the nervous system is rare and has even been previously described as a site of sparing. We present a case of a 24-year-old female with known lymphangiomatosis, presenting with acute onset of lower extremity paresthesias, weakness, and new urinary retention. MRI of the pelvis revealed lymphangiomatosis of the sacral plexus, which has not been previously reported...
February 21, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29468076/capromorelin-a-ghrelin-receptor-agonist-and-novel-therapy-for-stimulation-of-appetite-in-dogs
#12
REVIEW
Linda Rhodes, Bill Zollers, Jessica A Wofford, Ernst Heinen
Ghrelin is a hormone, secreted from cells in the stomach, which is important in the regulation of appetite and food intake in mammals. It exerts its action by binding to a specific G-protein-coupled receptor, the growth hormone secretagogue receptor 1a (GHS-R1a) which is found in areas of the brain associated with the regulation of food intake. Ghrelin causes a release of growth hormone (GH) through binding to GHS-R1a in the hypothalamus and pituitary gland. A class of compounds known as growth hormone secretagogues, or ghrelin receptor agonists, were developed for therapeutic use in humans for the stimulation of GH in the frail elderly, and have subsequently been studied for their effects on increasing appetite and food intake, increasing body weight, building lean muscle mass, and treating cachexia...
February 2018: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/29466269/neuromuscular-effects-to-6-weeks-of-loaded-countermovement-jumping-with-traditional-and-daily-undulating-periodization
#13
Boris Ullrich, Thiemo Pelzer, Mark Pfeiffer
Ullrich, B, Pelzer, T, and Pfeiffer, M. Neuromuscular effects to 6 weeks of loaded countermovement jumping with traditional and daily undulating periodization. J Strength Cond Res 32(3): 660-674, 2018-Loaded vertical jumps are routinely used to enhance athlete's power production in the lower extremity and to optimize jumping and sprinting performance. This study compared traditional (TP) and daily undulating (DUP) periodization on muscle strength, jumping performance, electromyographic (EMG) muscle activity, and muscle architecture during preseason loaded jump training...
March 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29466055/nature-vs-nurture-have-performance-gaps-between-men-and-women-reached-an-asymptote
#14
Mindy Millard-Stafford, Ann E Swanson, Matthew T Wittbrodt
Men outperform women in sports requiring muscular strength and/or endurance, but the relative influence of "nurture" versus "nature" remains difficult to quantify. Performance gaps between elite men and women are well-documented using world records in second, centimeter or kilogram sports. However, this approach is biased by global disparity in reward structures and opportunities for women. Despite policies enhancing female participation (Title IX legislation), USA women only closed performance gaps by 2 and 5% in Olympic Trial swimming and running, respectively, from 1972 to 1980 (with no change thereafter through 2016)...
February 21, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29464380/the-metabolic-and-endocrine-characteristics-in-spinal-and-bulbar-muscular-atrophy
#15
Angela Rosenbohm, Susanne Hirsch, Alexander E Volk, Torsten Grehl, Julian Grosskreutz, Frank Hanisch, Andreas Herrmann, Katja Kollewe, Wolfram Kress, Thomas Meyer, Susanne Petri, Johannes Prudlo, Carsten Wessig, Hans-Peter Müller, Jens Dreyhaupt, Jochen Weishaupt, Christian Kubisch, Jan Kassubek, Patrick Weydt, Albert C Ludolph
OBJECTIVE: Spinal and bulbar muscular atrophy (SBMA) is caused by an abnormal expansion of the CAG repeat in the androgen receptor gene. This study aimed to systematically phenotype a German SBMA cohort (n = 80) based on laboratory markers for neuromuscular, metabolic, and endocrine status, and thus provide a basis for the selection of biomarkers for future therapeutic trials. METHODS: We assessed a panel of 28 laboratory parameters. The clinical course and blood biomarkers were correlated with disease duration and CAG repeat length...
February 20, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29464358/association-of-cystatin-c-and-creatinine-based-egfr-with-osteoporotic-fracture-in-japanese-postmenopausal-women-with-osteoporosis-sarcopenia-as-risk-for-fracture
#16
Masafumi Kurajoh, Masaaki Inaba, Yuki Nagata, Shinsuke Yamada, Yasuo Imanishi, Masanori Emoto
Coexistence of chronic kidney disease (CKD) is regarded as a risk for osteoporotic fracture particularly in postmenopausal women, not only because of increased parathyroid hormone level but also uremic sarcopenia. We examined the relationships of cystatin C-based glomerular filtration rate (eGFRcys) and creatinine-based GFR (eGFRcr), as well as their ratio with occurrence of osteoporotic fracture in postmenopausal osteoporotic women. This cross-sectional study included 555 postmenopausal women with osteoporosis...
February 20, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29463621/ventilatory-support-or-respiratory-muscle-training-as-adjuncts-to-exercise-in-obese-cpap-treated-patients-with-obstructive-sleep-apnoea-a-randomised-controlled-trial
#17
Isabelle Vivodtzev, Renaud Tamisier, Marilie Croteau, Jean-Christian Borel, Angélique Grangier, Bernard Wuyam, Patrick Lévy, Caroline Minville, Frédéric Sériès, François Maltais, Jean-Louis Pépin
BACKGROUND: Obstructive sleep apnoea (OSA) and obesity are interdependent chronic diseases sharing reduced exercise tolerance and high cardiovascular risk. INTERVENTION: A 3-month intervention with innovative training modalities would further improve functional capacity and cardiovascular health than usual cycle exercise training in already continuous positive airway pressure (CPAP)-treated obese patients with OSA. METHODS: Fifty three patients (35<body mass index (BMI) <45 kg/m2 ) were randomly allocated to exercise training on a cycle ergometer, either alone (ERGO) or with respiratory muscle training (ERGO+RMT) or non-invasive ventilation (ERGO+NIV)...
February 20, 2018: Thorax
https://www.readbyqxmd.com/read/29462924/achieving-optimal-post-exercise-muscle-protein-remodeling-in-physically-active-adults-through-whole-food-consumption
#18
REVIEW
Stephan van Vliet, Joseph W Beals, Isabel G Martinez, Sarah K Skinner, Nicholas A Burd
Dietary protein ingestion is critical to maintaining the quality and quantity of skeletal muscle mass throughout adult life. The performance of acute exercise enhances muscle protein remodeling by stimulating protein synthesis rates for several hours after each bout, which can be optimized by consuming protein during the post-exercise recovery period. To date, the majority of the evidence regarding protein intake to optimize post-exercise muscle protein synthesis rates is limited to isolated protein sources...
February 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29462923/the-effect-of-whey-protein-supplementation-on-the-temporal-recovery-of-muscle-function-following-resistance-training-a-systematic-review-and-meta-analysis
#19
REVIEW
Robert W Davies, Brian P Carson, Philip M Jakeman
Whey protein (WP) is a widely consumed nutritional supplement, known to enhance strength and muscle mass during resistance training (RT) regimens. Muscle protein anabolism is acutely elevated following RT, which is further enhanced by WP. As a result, there is reason to suggest that WP supplementation may be an effective nutritional strategy for restoring the acute loss of contractile function that occurs following strenuous RT. This systematic review and meta-analysis provides a synthesis of the literature to date, investigating the effect of WP supplementation on the recovery of contractile function in young, healthy adults...
February 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29461936/quantification-of-trunk-and-android-lean-mass-using-dual-energy-x-ray-absorptiometry-compared-to-magnetic-resonance-imaging-after-spinal-cord-injury
#20
Kathleen C Rankin, Laura C O'Brien, Ashraf S Gorgey
OBJECTIVE: To determine whether dual energy x-ray absorptiometry (DXA) compared to magnetic resonance imaging (MRI) may accurately quantify trunk lean mass (LM) after chronic spinal cord injury (SCI) and to investigate the relationships between trunk LM, visceral adiposity, trunk fat mass and basal metabolic rate (BMR). DESIGN: Cross-sectional design and correlational analysis. SETTING: Research setting in a medical center. PARTICIPANTS: Twenty-two men with motor complete paraplegia (n = 14; T4-T11) and tetraplegia (n = 8; C5-C7) were recruited as part of a clinical trial...
February 20, 2018: Journal of Spinal Cord Medicine
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