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https://www.readbyqxmd.com/read/28068193/the-improvement-in-walking-speed-induced-by-resistance-training-is-associated-with-increased-muscular-strength-but-not-skeletal-muscle-mass-in-older-women
#1
Leandro Santos, Alex S Ribeiro, Brad J Schoenfeld, Matheus A Nascimento, Crisieli M Tomeleri, Mariana F Souza, Fábio L C Pina, Edilson S Cyrino
OBJECTIVE: The purpose of the present study was to analyze whether improvements in fast walking speed induced by resistance training (RT) are associated with changes in body composition, muscle quality, and muscular strength in older women. METHODS: Twenty-three healthy older women (69.6 ± 6.4 years, 64.95 ± 12.9 kg, 1.55 ± 0.07 m, 27.06 ± 4.6 kg/m²) performed a RT program for 8 weeks consisting of 8 exercises for the whole body, 3 sets of 10-15 repetitions maximum, 3 times a week...
January 9, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28049238/the-curves-exercise-suppresses-endotoxemia-in-korean-women-with-obesity
#2
Seon Ah Jin, Sun Kyeong Kim, Hee Jung Seo, Mijoo Kim, Kye Taek Ahn, Jun Hyung Kim, Jae Hyeong Park, Jae Hwan Lee, Si Wan Choi, Jin Ok Jeong
Obesity and metabolic syndrome is a worldwide pandemic and associated with high cardiovascular risk. Metabolic endotoxemia (ME) is thought to be an underlying molecular mechanism. It triggers toll-like receptor 4-mediated inflammatory adipokines and causes a chronic low grade inflammatory status, which results in cardiovascular risk increase. Exercise is the best nonpharmacological treatment to improve prognosis. In this study, we examined the circulating endotoxin level in Korean obese women and investigated effects of exercise on it...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28028076/inorganic-nitrate-mimics-exercise-stimulated-muscular-fiber-type-switching-and-myokine-and-gaba-release
#3
Lee D Roberts, Tom Ashmore, Ben D McNally, Steven A Murfitt, Bernadette O Fernandez, Martin Feelisch, Ross Lindsay, Mario Siervo, Elizabeth A Williams, Andrew J Murray, Julian L Griffin
Exercise is an effective intervention for prevention and treatment of type 2 diabetes. Skeletal muscle combines multiple signals contributing to the beneficial effects of exercise on cardiometabolic health. Inorganic nitrate increases exercise efficiency, tolerance and performance. The transcriptional regulator peroxisome proliferator-activated receptorγ coactivator1α (PGC1α) coordinates the exercise-stimulated skeletal muscle fiber-type switch from glycolytic fast-twitch (type IIb) to oxidative slow-twitch (type I) and intermediate (type IIa) fibers; an effect reversed in insulin resistance and diabetes...
December 27, 2016: Diabetes
https://www.readbyqxmd.com/read/27999852/effect-of-a-high-protein-energy-restricted-diet-combined-with-resistance-training-on-metabolic-profile-in-older-individuals-with-metabolic-impairments
#4
T Amamou, E Normandin, J Pouliot, I J Dionne, M Brochu, E Riesco
Adequate protein intake and resistance training are effective strategies to maintain muscle mass, but the effect of their combination on metabolic profile during weight loss remains to be determined in older adults. The main objective of this study was to determine the effect of a 16-week high-protein caloric restriction combined with resistance training on chronic disease risk factors in obese older individuals with metabolic impairments. A total of 26 overweight adults aged between 60 and 75 years (BMI 32...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27996378/fast-early-recovery-after-transabdominal-preperitoneal-repair-in-athletes-with-sportsman-s-groin-a-prospective-clinical-cohort-study
#5
Herwig Pokorny, Christoph Resinger, Ines Fischer, Veit Lorenz, Helge Noske, Stefan Podar, Friedrich Längle, Rudolf Schrittwieser
BACKGROUND: Current literature on chronic groin pain suggests that laparoscopic mesh repair on athletes enables a faster recovery and subsequent return to unrestricted athletic activities. The aim of this study was to evaluate the role of transabdominal preperitoneal (TAPP) mesh repair in athletes resistant to conservative therapy. METHODS: A multidisciplinary approach with tailored physiotherapy. Thirty-nine professional athletes with chronic groin pain were referred to surgery at a single clinic...
December 20, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27984439/skeletal-muscle-fatigability-and-myosin-heavy-chain-fiber-type-in-resistance-trained-men
#6
James R Bagley, Kathryn A McLeland, Jose A Arevalo, Lee E Brown, Jared W Coburn, Andrew J Galpin
Forty years ago, Thorstensson and Karlsson (1976) described the link between muscle fatigability and fiber type, finding that more fast-twitch fibers were associated with a quicker onset of quadriceps fatigue. This provided the foundation for the Classic Thorstensson Test (CT) of fatigability and subsequent noninvasive fiber type prediction equation. This equation was developed with data from recreationally active (REC) men, but has been implemented in participants with heterogeneous physical activity/exercise backgrounds...
December 7, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27977518/effects-of-2-years-of-exercise-on-gait-impairment-in-people-with-parkinson-disease-the-pret-pd-randomized-trial
#7
Miriam R Rafferty, Janey Prodoehl, Julie A Robichaud, Fabian J David, Cynthia Poon, Lisa C Goelz, David E Vaillancourt, Wendy M Kohrt, Cynthia L Comella, Daniel M Corcos
BACKGROUND AND PURPOSE: This study presents a secondary analysis from the Progressive Resistance Exercise Training in Parkinson Disease (PRET-PD) trial investigating the effects of progressive resistance exercise (PRE) and a Parkinson disease (PD)-specific multimodal exercise program, modified Fitness Counts (mFC), on spatial, temporal, and stability-related gait impairments in people with PD. METHODS: Forty-eight people with PD were randomized to participate in PRE or mFC 2 times a week for 24 months; 38 completed the study...
January 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/27976687/manufacture-of-patient-specific-vascular-replicas-for-endovascular-simulation-using-fast-low-cost-method
#8
Naoki Kaneko, Toshihiro Mashiko, Taihei Ohnishi, Makoto Ohta, Katsunari Namba, Eiju Watanabe, Kensuke Kawai
Patient-specific vascular replicas are essential to the simulation of endovascular treatment or for vascular research. The inside of silicone replica is required to be smooth for manipulating interventional devices without resistance. In this report, we demonstrate the fabrication of patient-specific silicone vessels with a low-cost desktop 3D printer. We show that the surface of an acrylonitrile butadiene styrene (ABS) model printed by the 3D printer can be smoothed by a single dipping in ABS solvent in a time-dependent manner, where a short dip has less effect on the shape of the model...
December 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27955950/resistive-training-and-molecular-regulators-of-vascular-metabolic-risk-in-chronic-stroke
#9
Alice S Ryan, Guoyan Li, Charlene Hafer-Macko, Frederick M Ivey
BACKGROUND: Peroxisome proliferator-activated receptor (PPAR)-γ coactivator (PGC-1α) gene and Sirtuin-1 (SIRT-1) respond to physiological stimuli and regulate insulin resistance. Inflammatory markers tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), C-reactive protein (CRP), and the soluble forms of intracellular adhesion molecule (sICAM-1) and vascular CAM-1 (sVCAM-1) are associated with increased risk of diabetes and coronary heart disease. Resistive training (RT) reduces hyperinsulinemia and improves insulin action in chronic stroke...
December 9, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27951413/immunometabolic-parameters-in-overweight-dogs-during-weight-loss-with-or-without-an-exercise-program
#10
A D Vitger, B M Stallknecht, J E Miles, S L Hansen, A Vegge, C R Bjørnvad
The influence of physical activity on metabolic health in overweight dogs is unknown. This study was conducted to evaluate biomarkers of immunometabolic health in relation to changes in physical activity and adiposity. Client-owned overweight dogs participated in a 12-wk intervention based on caloric restriction combined with a training program (fitness and diet [FD] group, n = 8), or caloric restriction alone (diet-only [DO] group, n = 8). Physical activity was monitored by accelerometry. All dogs were fed the same diet and achieved similar weight loss...
November 11, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27928217/effects-of-a-high-protein-and-omega-3-enriched-diet-with-or-without-creatine-supplementation-on-markers-of-soreness-and-inflammation-during-5-consecutive-days-of-high-volume-resistance-exercise-in-females
#11
Sara Hayward, Colin D Wilborn, Lem W Taylor, Stacie L Urbina, Jordan J Outlaw, Cliffa A Foster, Michael D Roberts
We examined if two different dietary interventions affected markers of soreness and inflammation over a 5-day high-volume resistance training protocol in females that resistance-trained 8 weeks prior. Twenty-eight females (age: 20 ± 1 yr; body mass: 63.5 ± 1.6 kg, height: 1.67 ± 0.01 m) completed 4 weeks of pre-training (weeks 1-4) followed by a subsequent 4-week training period along with a dietary intervention (weeks 5-8). Dietary interventions from weeks 5-8 included: a) no intervention (CTL, n = 10) b) a higher-protein diet supplemented with hydrolyzed whey protein (50 g/d) and omega-3 fatty acids (900 mg/d) (DI, n = 8), and c) the DI condition as well as creatine monohydrate (5 g/d) (DI+C, n = 10)...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27922941/exercise-training-ameliorates-glucosamine-induced-insulin-resistance-in-ovariectomized-rats
#12
Chung-Hwan Chen, Tsang-Hai Huang, Tsung-Lin Cheng, Chi-Fen Chang, Chau-Zen Wang, Meng-Hsing Wu, Lin Kang
OBJECTIVE: Glucosamine (GlcN), which has been reported to induce insulin resistance (IR), is a popular nutritional supplement used to treat osteoarthritis in menopausal women. We previously demonstrated that GlcN treatment caused IR in ovariectomized rats by reducing the expression of glucose transport protein subtype 4 (GLUT-4) in skeletal muscle. In the present study, we hypothesized that endurance exercise training can reverse GlcN-induced IR. METHODS: Fifty female rats were randomly divided into five groups with 10 rats in each group: (1) sham-operated group; (2) sham-operated group with GlcN treatment for 14 days; (3) ovariectomy (OVX) group; (4) OVX with GlcN treatment; and (5) OVX with GlcN treatment followed by exercise training (running program) for 8 weeks...
December 5, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27916865/associations-of-vitamin-d-with-inter-and-intra-muscular-adipose-tissue-and-insulin-resistance-in-women-with-and-without-polycystic-ovary-syndrome
#13
David Scott, Anju Joham, Helena Teede, Melanie Gibson-Helm, Cheryce Harrison, Samantha Cassar, Samantha Hutchison, Peter R Ebeling, Nigel Stepto, Barbora de Courten
Low vitamin D and insulin resistance are common in polycystic ovary syndrome (PCOS) and associated with higher inter- and intra-muscular adipose tissue (IMAT). We investigated associations between vitamin D, IMAT and insulin resistance in a cross-sectional study of 40 women with PCOS and 30 women without PCOS, and pre- and post-exercise in a 12-week intervention in 16 overweight participants (10 with PCOS and six without PCOS). A non-classical body mass index (BMI) threshold was used to differentiate lean and overweight women (BMI ≥ 27 kg/m²)...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27895593/baseline-muscle-mass-is-a-poor-predictor-of-functional-overload-induced-gain-in-the-mouse-model
#14
Audrius Kilikevicius, Lutz Bunger, Arimantas Lionikas
Genetic background contributes substantially to individual variability in muscle mass. Muscle hypertrophy in response to resistance training can also vary extensively. However, it is less clear if muscle mass at baseline is predictive of the hypertrophic response. The aim of this study was to examine the effect of genetic background on variability in muscle mass at baseline and in the adaptive response of the mouse fast- and slow-twitch muscles to overload. Males of eight laboratory mouse strains: C57BL/6J (B6, n = 17), BALB/cByJ (n = 7), DBA/2J (D2, n = 12), B6...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27895574/robot-assisted-rehabilitation-of-ankle-plantar-flexors-spasticity-a-3-month-study-with-proprioceptive-neuromuscular-facilitation
#15
Zhihao Zhou, Yao Sun, Ninghua Wang, Fan Gao, Kunlin Wei, Qining Wang
In this paper, we aim to investigate the effect of proprioceptive neuromuscular facilitation (PNF)-based rehabilitation for ankle plantar flexors spasticity by using a Robotic Ankle-foot Rehabilitation System (RARS). A modified robot-assisted system was proposed, and seven poststroke patients with hemiplegic spastic ankles participated in a 3-month robotic PNF training. Their impaired sides were used as the experimental group, while their unimpaired sides as the control group. A robotic intervention for the experimental group started from a 2-min passive stretching to warming-up or relaxing the soleus and gastrocnemius muscles and also ended with the same one...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27893563/resistance-training-improves-muscle-function-and-cardiometabolic-risks-but-not-quality-of-life-in-older-people-with-type-2-diabetes-mellitus-a-randomized-controlled-trial
#16
Ping-Lun Hsieh, Chin-Hsiao Tseng, Yufeng Jane Tseng, Wei-Shiung Yang
BACKGROUND AND PURPOSE: In older people with type 2 diabetes mellitus (T2DM), the effects of aging and T2DM may compromise the function of skeletal muscle, deteriorate metabolic status, and jeopardize physical performance, aerobic capacity, and quality of life (QoL). The purpose of this study was to investigate the effects of 12 weeks of resistance training (RT) on muscle function, physical performance, cardiometabolic risks, and QoL in older people with T2DM. METHODS: This study was a randomized controlled trial that employed block randomization, assessor blinding, and the intention-to-treat principle...
November 23, 2016: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/27871063/dioscorea-esculenta-induced-increase-in-muscle-sex-steroid-hormones-is-associated-with-enhanced-insulin-sensitivity-in-a-type-2-diabetes-rat-model
#17
Koji Sato, Satoshi Fujita, Motoyuki Iemitsu
The effects of chronic Dioscorea esculenta administration and exercise training on muscle sex steroid hormone levels and insulin resistance in type 2 diabetes rats was assessed. Twenty-wk-old male Otsuka Long Evans Tokushima Fatty (OLETF) rats were assigned randomly to the control, D. esculenta treatment, D. esculenta with 5α-reductase inhibitor treatment, or the exercise training groups (running at 25 m/min for 1 h, 5 d/wk; n = 10 each group). Eight weeks of D. esculenta treatment or exercise training significantly attenuated the increase in plasma insulin and fasting glucose levels...
November 8, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27855341/the-relationship-of-fasting-hyperglycemia-to-changes-in-fat-and-muscle-mass-after-exercise-training-in-type-2-diabetes
#18
Swaytha V Yalamanchi, Kerry J Stewart, Nan Ji, Sherita H Golden, Adrian Dobs, Diane M Becker, Dhananjay Vaidya, Brian G Kral, Rita R Kalyani
AIMS: Exercise training (ET) has been variably associated with body composition changes among persons with type 2 diabetes (T2DM). The degree to which these changes are related to hyperglycemia remains unclear. Our objective was to investigate the relationship of baseline fasting glucose (FG) to the magnitude of muscle gains and fat loss after ET in individuals with T2DM. METHODS: Participants were enrolled in the SHAPE-2 trial, a six month supervised aerobic and resistance training intervention (three days/week), at Johns Hopkins...
December 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/27832095/increased-muscular-5%C3%AE-dihydrotestosterone-in-response-to-resistance-training-relates-to-skeletal-muscle-mass-and-glucose-metabolism-in-type-2-diabetic-rats
#19
Naoki Horii, Koji Sato, Noboru Mesaki, Motoyuki Iemitsu
Regular resistance exercise induces skeletal muscle hypertrophy and improvement of glycemic control in type 2 diabetes patients. Administration of dehydroepiandrosterone (DHEA), a sex steroid hormone precursor, increases 5α-dihydrotestosterone (DHT) synthesis and is associated with improvements in fasting blood glucose level and skeletal muscle hypertrophy. Therefore, the aim of this study was to investigate whether increase in muscle DHT levels, induced by chronic resistance exercise, can contribute to skeletal muscle hypertrophy and concomitant improvement of muscular glucose metabolism in type 2 diabetic rats...
2016: PloS One
https://www.readbyqxmd.com/read/27807523/effect-of-concurrent-resistance-and-sprint-training-on-body-composition-and-cardiometabolic-health-indicators-in-masters-cyclists
#20
Luke Delvecchio, Peter Reaburn, Gail Trapp, Marko T Korhonen
In older previously sedentary individuals endurance training imposes a more effective stimulus to enhance cardiometabolic health compared with resistance or sprint training. We examined the effect of replacing a portion of endurance training with combined resistance and/or sprint training and how this influences cardiometabolic health indicators in masters endurance cyclists. Twenty-seven well-trained male road cyclists (53.7±8.2 years) were allocated to a resistance and track sprint-cycling training group (RTC, n=10), an endurance and track sprint-cycling group (ETC, n=7) or a control endurance group (CTRL, n=10)...
October 2016: Journal of Exercise Rehabilitation
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