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https://www.readbyqxmd.com/read/28328712/resistance-training-induced-elevations-in-muscular-strength-in-trained-men-are-maintained-after-2-weeks-of-detraining-and-not-differentially-affected-by-whey-protein-supplementation
#1
Paul S Hwang, Thomas L Andre, Sarah K McKinley-Barnard, Flor E Morales Marroquín, Joshua J Gann, Joon J Song, Darryn S Willoughby
Hwang, PS, Andre, TL, McKinley-Barnard, SK, Morales Marroquín, FE, Gann, JJ, Song, JJ, and Willoughby, DS. Resistance training-induced elevations in muscular strength in trained men are maintained after 2 weeks of detraining and not differentially affected by whey protein supplementation. J Strength Cond Res 31(4): 869-881, 2017-Resistance training (RT) with nutritional strategies incorporating whey protein intake postexercise can stimulate muscle protein synthesis and elicit hypertrophy. The early phases of training-induced anabolic responses can be attenuated with longer-term training...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28326351/effects-of-low-dose-ibuprofen-supplementation-and-resistance-training-on-bone-and-muscle-in-postmenopausal-women-a-randomized-controlled-trial
#2
Whitney R D Duff, Saija A Kontulainen, Darren G Candow, Julianne J Gordon, Riley S Mason, Regina Taylor-Gjevre, Bindu Nair, Michael Szafron, Adam D G Baxter-Jones, Gordon A Zello, Philip D Chilibeck
PURPOSE: To compare the effects of nine months of exercise training and ibuprofen supplementation (given immeditately after exercise sessions) on bone and muscle in postmenopausal women. METHODS: In a double-blind randomized trial, participants (females: n = 90, mean age 64.8, SD 4.3 years) were assigned (computer generated, double blind) to receive supervised resistance training or stretching 3 days/week, and ibuprofen (400 mg, post-exercise) or placebo (i...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28321683/resistance-training-using-a-novel-robotic-walker-for-over-ground-gait-rehabilitation-a-preliminary-study-on-healthy-subjects
#3
Kyung-Ryoul Mun, Brandon Bao Sheng Yeo, Zhao Guo, Soon Cheol Chung, Haoyong Yu
Strength training is an aspect of gait rehabilitation, which complements balance control and weight-bearing training. However, conventional strength training does not show positive gait outcomes, due to lack of task specificity. Therefore, the aims of this study were to investigate the effects of a resistance force applied at the center of mass (CoM) and to investigate whether this exercise can be used for effective task-specific gait training. Using a novel robotic walker, a consistent resistive force was applied to the CoM of subjects in the posterior direction...
March 20, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28321637/the-time-course-of-short-term-hypertrophy-in-the-absence-of-eccentric-muscle-damage
#4
Matt S Stock, Jacob A Mota, Ryan N DeFranco, Katherine A Grue, A Unique Jacobo, Eunhee Chung, Jordan R Moon, Jason M DeFreitas, Travis W Beck
BACKGROUND: It has been proposed that the increase in skeletal muscle mass observed during the initial weeks of initiating a resistance training program is concomitant with eccentric muscle damage and edema. PURPOSE: We examined the time course of muscle hypertrophy during 4 weeks of concentric-only resistance training. METHODS: Thirteen untrained men performed unilateral concentric-only dumbbell curls and shoulder presses twice per week for 4 weeks...
March 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28321327/physical-activity-in-patients-treated-with-peritoneal-dialysis-a-protocol-for-a-systematic-review
#5
Tharshika Thangarasa, Rameez Imtiaz, Swapnil Hiremath, Deborah Zimmerman
BACKGROUND: Patients with chronic diseases are known to benefit from exercise. Despite a lack of compelling evidence, patients with end-stage kidney disease treated with peritoneal dialysis are often discouraged from participating in exercise programs that include resistance training due to concerns about the development of hernias and leaks. The actual effects of physical activity with or without structured exercise programs for these patients remain unclear. The purpose of this study is to more completely define the risks and benefits of physical activity in the end-stage kidney disease population treated with peritoneal dialysis...
2017: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/28319589/exercise-improves-v-combining-dot-above-o-2max-and-body-composition-in-adt-treated-prostate-cancer-patients
#6
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/28315193/resistance-training-using-different-hypoxic-training-strategies-a-basis-for-hypertrophy-and-muscle-power-development
#7
REVIEW
Belén Feriche, Amador García-Ramos, Antonio J Morales-Artacho, Paulino Padial
The possible muscular strength, hypertrophy, and muscle power benefits of resistance training under environmental conditions of hypoxia are currently being investigated.Nowadays, resistance training in hypoxia constitutes a promising new training strategy for strength and muscle gains. The main mechanisms responsible for these effects seem to be related to increased metabolite accumulation due to hypoxia. However, no data are reported in the literature to describe and compare the efficacy of the different hypertrophic resistance training strategies in hypoxia...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28304092/mediation-of-cognitive-function-improvements-by-strength-gains-after-resistance-training-in-older-adults-with-mild-cognitive-impairment-outcomes-of-the-study-of-mental-and-resistance-training
#8
Yorgi Mavros, Nicola Gates, Guy C Wilson, Nidhi Jain, Jacinda Meiklejohn, Henry Brodaty, Wei Wen, Nalin Singh, Bernhard T Baune, Chao Suo, Michael K Baker, Nasim Foroughi, Yi Wang, Perminder S Sachdev, Michael Valenzuela, Maria A Fiatarone Singh
OBJECTIVES: To determine whether improvements in aerobic capacity (VO2peak ) and strength after progressive resistance training (PRT) mediate improvements in cognitive function. DESIGN: Randomized, double-blind, double-sham, controlled trial. SETTING: University research facility. PARTICIPANTS: Community-dwelling older adults (aged ≥55) with mild cognitive impairment (MCI) (N = 100). INTERVENTION: PRT and cognitive training (CT), 2 to 3 days per week for 6 months...
March 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28303243/high-density-lipoprotein-subfractions-and-cholesterol-efflux-capacity-are-not-affected-by-supervised-exercise-but-are-associated-with-baseline-interleukin-6-in-patients-with-peripheral-artery-disease
#9
Mazen S Albaghdadi, Zheng Wang, Ying Gao, R Kannan Mutharasan, John Wilkins
OBJECTIVE: To quantify the association between high-density lipoprotein (HDL) subfractions, efflux capacity, and inflammatory markers at baseline and the effect of supervised exercise on these HDL parameters in patients with peripheral artery disease (PAD). METHODS: The study to improve leg circulation (SILC) was a randomized trial of supervised treadmill exercise, leg resistance training, or control in individuals with PAD. In a post hoc cross-sectional analysis, we quantified the associations between baseline HDL subfraction concentrations (HDL2 and HDL3), HDL-C efflux capacity, and inflammatory markers [C-reactive protein (CRP) and interleukin-6 (IL-6)]...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28301439/efficacy-of-the-repetitions-in-reserve-based-rating-of-perceived-exertion-for-the-bench-press-in-experienced-and-novice-benchers
#10
Michael J Ormsbee, Joseph P Carzoli, Alex Klemp, Brittany R Allman, Michael C Zourdos, Jeong-Su Kim, Lynn B Panton
Autoregulation (AR) is the practice of adjusting training variables in response to athlete feedback. One component of AR postulated to enhance resistance training adaptations involves implementing a resistance training-specific rating of perceived exertion (RPE) scale measuring repetitions in reserve (RIR). The purpose of this study was to examine the efficacy of this method using the bench press exercise. METHODS: Twenty-seven college-aged men were assigned to one of two groups based upon training age: experience benchers (EB) (n=14, training age: 4...
March 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28301435/different-cluster-sets-result-in-similar-metabolic-endocrine-and-perceptual-responses-in-trained-men
#11
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/28294417/progressive-resistance-loaded-voluntary-wheel-running-increases-hypertrophy-and-differentially-affects-muscle-protein-synthesis-ribosome-biogenesis-and-proteolytic-markers-in-rat-muscle
#12
C B Mobley, A M Holland, W C Kephart, P W Mumford, R P Lowery, A N Kavazis, J M Wilson, M D Roberts
We examined if 6 weeks of progressive resistance-loaded voluntary wheel running in rats induced plantaris, soleus, and/or gastrocnemius hypertrophy and/or affected markers of translational efficiency, ribosome biogenesis, and markers of proteolysis. For 6 weeks, 8 male Sprague-Dawley rats (~9-10 weeks of age, ~300-325 g) rats were assigned to the progressive resistance-loaded voluntary wheel running model (EX), and ten rats were not trained (SED). For EX rats, the wheel-loading paradigm was as follows - days 1-7: free-wheel resistance, days 8-15: wheel resistance set to 20%-25% body mass, days 16-24: 40% body mass, days 25-32: 60% body mass, days 33-42: 40% body mass...
March 15, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28287901/the-acute-effects-of-bodyweight-suspension-exercise-on-muscle-activation-and-muscular-fatigue
#13
Trent E Cayot, Jakob D Lauver, Barry W Scheuermann
This investigation examined effects of two exercise modes (barbell, BB; bodyweight suspension, BWS) on muscle activation, resistance load, and fatigue. During session one, nine resistance-trained males completed an elbow flexion one-repetition maximum (1RM). During sessions two and three, subjects completed standing biceps curls to fatigue at 70% 1RM utilizing a randomized exercise mode. Surface electromyography (sEMG) recorded muscle activation of the biceps brachii, triceps brachii, anterior deltoid, posterior deltoid, rectus abdominis, and erector spinae...
March 13, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28286988/exercise-and-nutritional-approaches-to-prevent-frail-bones-falls-and-fractures-an-update
#14
REVIEW
R M Daly
Osteoporosis (low bone strength) and sarcopenia (low muscle mass, strength and/or impaired function) often co-exist (hence the term 'sarco-osteoporosis') and have similar health consequences with regard to disability, falls, frailty and fractures. Exercise and adequate nutrition, particularly with regard to vitamin D, calcium and protein, are key lifestyle approaches that can simultaneously optimize bone, muscle and functional outcomes in older people, if they are individually tailored and appropriately prescribed in terms of the type and dose...
April 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28286330/effects-of-the-exposure-to-self-and-other-referential-bodies-on-state-body-image-and-negative-affect-in-resistance-trained-men
#15
Martin Cordes, Silja Vocks, Rainer Düsing, Manuel Waldorf
Previous body image research suggests that first, exposure to body stimuli can negatively affect men's body satisfaction and second, body concerns are associated with dysfunctional gaze behavior. To date, however, the effects of self- vs. other-referential body stimuli and of gaze behavior on body image in men under exposure conditions have not been investigated. Therefore, 49 weight-trained men were presented with pictures of their own and other bodies of different builds (i.e., normal, muscular, hyper-muscular) while being eye-tracked...
March 9, 2017: Body Image
https://www.readbyqxmd.com/read/28282858/the-impact-of-shiftwork-on-skeletal-muscle-health
#16
REVIEW
Brad Aisbett, Dominique Condo, Evelyn Zacharewicz, Séverine Lamon
(1) Background: About one in four workers undertake shift rosters that fall outside the traditional 7 a.m.-6 p.m. scheduling. Shiftwork alters workers' exposure to natural and artificial light, sleep patterns, and feeding patterns. When compared to the rest of the working population, shiftworkers are at a greater risk of developing metabolic impairments over time. One fundamental component of metabolic health is skeletal muscle, the largest organ in the body. However, cause-and-effect relationships between shiftwork and skeletal muscle health have not been established; (2) Methods: A critical review of the literature was completed using online databases and reference lists; (3) Results: We propose a conceptual model drawing relationships between typical shiftwork consequences; altered light exposure, sleep patterns, and food and beverage consumption, and drivers of skeletal muscle health-protein intake, resistance training, and hormone release...
March 8, 2017: Nutrients
https://www.readbyqxmd.com/read/28282758/the-effects-of-barbell-load-on-countermovement-vertical-jump-power-and-net-impulse
#17
Peter D Mundy, Neal A Smith, Mike A Lauder, Jason P Lake
The aim of this study was to examine the effects of barbell load on countermovement vertical jump (CMJ) power and net impulse within a theoretically valid framework, cognisant of the underpinning force, temporal, and spatial components. A total of 24 resistance-trained rugby union athletes (average ± SD: age: 23.1 ± 3.4 years; height: 1.83 ± 0.05 m; body mass (BM): 91.3 ± 10.5 kg) performed maximal CMJ under 5 experimental conditions in a randomised, counterbalanced order: unloaded, and with additional loads of 25%, 50%, 75%, and 100% of BM...
September 26, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28280974/post-absorptive-muscle-protein-turnover-affects-resistance-training-hypertrophy
#18
Paul T Reidy, Michael S Borack, Melissa M Markofski, Jared M Dickinson, Christopher S Fry, Rachel R Deer, Elena Volpi, Blake B Rasmussen
PURPOSE: Acute bouts of resistance exercise and subsequent training alters protein turnover in skeletal muscle. The mechanisms responsible for the changes in basal post-absorptive protein turnover and its impact on muscle hypertrophy following resistance exercise training are unknown. Our goal was to determine whether post-absorptive muscle protein turnover following 12 weeks of resistance exercise training (RET) plays a role in muscle hypertrophy. In addition, we were interested in determining potential molecular mechanisms responsible for altering post-training muscle protein turnover...
March 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28280321/transdiaphragmatic-pressure-and-neural-respiratory-drive-measured-during-inspiratory-muscle-training-in-stable-patients-with-chronic-obstructive-pulmonary-disease
#19
Weiliang Wu, Xianming Zhang, Lin Lin, Yonger Ou, Xiaoying Li, Lili Guan, Bingpeng Guo, Luqian Zhou, Rongchang Chen
PURPOSE: Inspiratory muscle training (IMT) is a rehabilitation therapy for stable patients with COPD. However, its therapeutic effect remains undefined due to the unclear nature of diaphragmatic mobilization during IMT. Diaphragmatic mobilization, represented by transdiaphragmatic pressure (Pdi), and neural respiratory drive, expressed as the corrected root mean square (RMS) of the diaphragmatic electromyogram (EMGdi), both provide vital information to select the proper IMT device and loads in COPD, therefore contributing to the curative effect of IMT...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28277433/changes-in-unilateral-upper-limb-muscular-strength-and-emg-activity-following-a-16-week-strength-training-intervention-survivors-of-breast-cancer
#20
Amanda D Hagstrom, Kathleen A Shorter, Paul W M Marshall
Upper limb strength deficits are frequently observed following breast cancer and its treatments. It is currently unknown whether these unilateral deficits can be corrected by a standard bilateral strength training intervention. Twenty three survivors of breast cancer were included in this analysis. Fourteen performed a 16 week resistance training (RT) intervention, 9 were assigned to a usual care waitlist control group. Electromyographic (EMG) analysis of the pectoralis major and triceps brachii were monitored during three maximal isometric contractions and a fatiguing endurance task...
March 8, 2017: Journal of Strength and Conditioning Research
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