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https://www.readbyqxmd.com/read/28448687/postexercise-blood-flow-restriction-does-not-enhance-muscle-hypertrophy-induced-by-multiple-set-high-load-resistance-exercise
#1
Haruhiko Madarame, Satoshi Nakada, Takahisa Ohta, Naokata Ishii
To test the applicability of postexercise blood flow restriction (PEBFR) in practical training programmes, we investigated whether PEBFR enhances muscle hypertrophy induced by multiple-set high-load resistance exercise (RE). Seven men completed an eight-week RE programme for knee extensor muscles. Employing a within-subject design, one leg was subjected to RE + PEBFR, whereas contralateral leg to RE only. On each exercise session, participants performed three sets of unilateral knee extension exercise at approximately 70% of their one-repetition maximum for RE leg first, and then performed three sets for RE + PEBFR leg...
April 27, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28447880/resistance-training-in-youth-laying-the-foundation-for-injury-prevention-and-physical-literacy
#2
Christin Zwolski, Catherine Quatman-Yates, Mark V Paterno
CONTEXT: The rising incidence of physical activity- and sports-related injuries has prompted the present-day investigation of resistance training as a potential means of injury prevention and physical literacy development among youth. EVIDENCE ACQUISITION: Relevant studies on the topics of athlete development, physical literacy, resistance training, and injury prevention in children and adolescents were reviewed (PubMed and Sports Discus, 1982-2016). Recommendations from consensus guidelines and position statements applicable to resistance training and injury prevention in youth, in addition to young athlete development, were reviewed...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28447186/comparison-of-the-recovery-response-from-high-intensity-and-high-volume-resistance-exercise-in-trained-men
#3
Sandro Bartolomei, Eliahu Sadres, David D Church, Eliott Arroyo, Joseph A Gordon Iii, Alyssa N Varanoske, Ran Wang, Kyle S Beyer, Leonardo P Oliveira, Jeffrey R Stout, Jay R Hoffman
PURPOSE: The purpose of this study was to compare the physiological responses of a high-volume (HV; 8 sets of 10 repetitions) versus high-intensity (HI; 8 sets of 3 repetitions) exercise protocol in resistance-trained men. METHODS: Twelve men (24.5 ± 4.2 years; 82.3 ± 8.4 kg; 175.2 ± 5.5 cm) with 6.3 ± 3.4 years of resistance training experience performed each protocol in a counterbalanced, randomized order. Performance [counter movement jump peak power (CMJP), isokinetic (ISOK) and isometric leg extension (MVIC), isometric mid-thigh pull (IMTP), and isometric squat (ISQ)] and muscle morphological [cross-sectional area (CSA) of vastus lateralis] assessments were performed at baseline (BL), 30-min (P-30 min), 24-h (P-24 h), 48-h (P-48 h), and 72-h (P-72 h) post-exercise for each testing session...
April 26, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28445110/normobaric-hypoxia-increases-the-growth-hormone-response-to-maximal-resistance-exercise-in-trained-men
#4
Dean Filopoulos, Stuart J Cormack, Douglas G Whyte
This study examined the effect of hypoxia on growth hormone (GH) release during an acute bout of high-intensity, low-volume resistance exercise. Using a single-blinded, randomised crossover design, 16 resistance-trained males completed two resistance exercise sessions in normobaric hypoxia (HYP; inspiratory oxygen fraction, (FiO2) 0.12, arterial oxygen saturation (SpO2) 82 ± 2%) and normoxia (NOR; FiO2 0.21, SpO2 98 ± 0%). Each session consisted of five sets of three repetitions of 45° leg press and bench press at 85% of one repetition maximum...
April 26, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28444456/free-leucine-supplementation-during-an-8-week-resistance-training-program-does-not-increase-muscle-mass-and-strength-in-untrained-young-adult-subjects
#5
Andreo Fernando Aguiar, Alan Pablo Grala, Rubens Alexandre da Silva, Lúcio Flávio Soares-Caldeira, Francis Lopes Pacagnelli, Alex Silva Ribeiro, Douglas Kratki da Silva, Walquíria Batista de Andrade, Mario Carlos Welin Balvedi
The purpose of this study was to examine the effects of free leucine supplementation on changes in skeletal muscle mass and strength during a resistance training (RT) program in previously untrained, young subjects. In a double-blind, randomized, placebo-controlled study, 20 healthy young (22 ± 2 years) participants were assigned to two groups: a placebo-supplement group (PLA, N = 10) or a leucine-supplement group (LEU, N = 10). Both groups underwent an 8-week hypertrophic RT program (2 days/week), consuming an equivalent amount of leucine (3...
April 25, 2017: Amino Acids
https://www.readbyqxmd.com/read/28444094/jumping-in-aquatic-environment-after-sciatic-nerve-compression-nociceptive-evaluation-and-morphological-characteristics-of-the-soleus-muscle-of-wistar-rats
#6
Jéssica Aline Malanotte, Camila Mayumi Martin Kakihata, Jhenifer Karvat, Rose Meire Costa Brancalhão, Lucinéia de Fátima Chasko Ribeiro, Gladson Ricardo Flor Bertolini
Objective: To evaluate the effect of jumping in aquatic environment on nociception and in the soleus muscle of trained and not trained Wistar rats, in the treatment of compressive neuropathy of the sciatic nerve. Methods: Twenty-five Wistar rats were distributed into five groups: Control, Lesion, Trained + Lesion, Lesion + Exercise, and Trained + Lesion + Exercise. The training was jumping exercise in water environment for 20 days prior to injury, and treatment after the injury...
January 2017: Einstein
https://www.readbyqxmd.com/read/28443029/superior-effects-of-eccentric-to-concentric-knee-extensor-resistance-training-on-physical-fitness-insulin-sensitivity-and-lipid-profiles-of-elderly-men
#7
Trevor Chung-Ching Chen, Wei-Chin Tseng, Guan-Ling Huang, Hsin-Lian Chen, Kuo-Wei Tseng, Kazunori Nosaka
It has been reported that eccentric training of knee extensors is effective for improving blood insulin sensitivity and lipid profiles to a greater extent than concentric training in young women. However, it is not known whether this is also the case for elderly individuals. Thus, the present study tested the hypothesis that eccentric training of the knee extensors would improve physical function and health parameters (e.g., blood lipid profiles) of older adults better than concentric training. Healthy elderly men (60-76 years) were assigned to either eccentric training or concentric training group (n = 13/group), and performed 30-60 eccentric or concentric contractions of knee extensors once a week...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28442274/sex-differences-in-exercise-efficacy-to-improve-cognition-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials-in-older-humans
#8
REVIEW
Cindy K Barha, Jennifer C Davis, Ryan S Falck, Lindsay S Nagamatsu, Teresa Liu-Ambrose
Exercise is a non-pharmacological strategy to mitigate the deleterious effects of aging on brain health. However, a large amount of variation exists in its efficacy. Sex of participants and exercise type are two possible factors contributing to this variation. To better understand this, we conducted a concurrent systematic review and meta-analysis of cognitively healthy older adults. Executive functions, episodic memory, visuospatial function, word fluency, processing speed and global cognitive function were examined for exercise- and sex-dependent effects...
April 22, 2017: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/28441958/metformin-to-augment-strength-training-effective-response-in-seniors-masters-study-protocol-for-a-randomized-controlled-trial
#9
Doug E Long, Bailey D Peck, Jenny L Martz, S Craig Tuggle, Heather M Bush, Gerald McGwin, Philip A Kern, Marcas M Bamman, Charlotte A Peterson
BACKGROUND: Muscle mass and strength are strong determinants of a person's quality of life and functional independence with advancing age. While resistance training is the most effective intervention to combat age-associated muscle atrophy (sarcopenia), the ability of older adults to increase muscle mass and strength in response to training is blunted and highly variable. Thus, finding novel ways to complement resistance training to improve muscle response and ultimately quality of life among older individuals is critical...
April 26, 2017: Trials
https://www.readbyqxmd.com/read/28441442/the-effects-of-a-resistance-vs-an-aerobic-single-session-on-attention-and-executive-functioning-in-adults
#10
Ayelet Dunsky, Mona Abu-Rukun, Sharon Tsuk, Tzvi Dwolatzky, Rafi Carasso, Yael Netz
Evidence from recent studies showed that acute aerobic exercise results in improvements in different cognitive functions. The goal of this study was to assess the influence of acute bouts of aerobic versus resistance exercise on attention and executive function in adults. Thirty-nine physically active adults (age = 52±8 yr) served as participants. Each participant visited the laboratory four times: on the first visit participants performed a cognitive test (NeuroTrax) followed by an aerobic fitness assessment, as well as maximal strength test composed of six exercises...
2017: PloS One
https://www.readbyqxmd.com/read/28438770/exercise-interventions-for-cognitive-function-in-adults-older-than-50-a-systematic-review-with-meta-analysis
#11
REVIEW
Joseph Michael Northey, Nicolas Cherbuin, Kate Louise Pumpa, Disa Jane Smee, Ben Rattray
BACKGROUND: Physical exercise is seen as a promising intervention to prevent or delay cognitive decline in individuals aged 50 years and older, yet the evidence from reviews is not conclusive. OBJECTIVES: To determine if physical exercise is effective in improving cognitive function in this population. DESIGN: Systematic review with multilevel meta-analysis. DATA SOURCES: Electronic databases Medline (PubMed), EMBASE (Scopus), PsychINFO and CENTRAL (Cochrane) from inception to November 2016...
April 24, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28438422/next-generation-parasitologists-structured-training-programs-meet-educational-challenges
#12
Juliane Kofer, Heribert Hofer, Susanne Hartmann
Parasite infections are diverse, complex and widespread, and they represent major health threats to people and animals alike. Topics such as vaccine development, drug resistance, immune regulation, vector-borne parasitic diseases, and wildlife parasitology are key issues. Here, we discuss the need and direction of structured educational programs for graduates in modern parasitology.
April 21, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28437262/loss-of-resistance-a-randomised-controlled-trial-assessing-four-low-fidelity-epidural-puncture-simulators
#13
Tina H Pedersen, Jonas Meuli, Eike J Plazikowski, Maximilian Buttenberg, Maren Kleine-Brueggeney, Christian Seidl, Lorenz Theiler, Robert Greif
BACKGROUND: Detecting loss of resistance (LOR) can either be taught with dedicated simulators, with a cost ranging from &OV0556;1500 to 3000, or with the 'Greengrocer's Model', requiring simply a banana. OBJECTIVES: The purpose of this study was to compare three dedicated epidural puncture training simulators and a banana in their ability to simulate LOR. Our hypothesis was that there was a difference between the four simulators when comparing the detection of LOR...
April 21, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28437091/speeding-up-early-drug-discovery-in-antiviral-research-a-fragment-based-in-silico-approach-for-the-design-of-virtual-anti-hepatitis-c-leads
#14
Alejandro Speck-Planche, M Natalia Dias Soeiro Cordeiro
Hepatitis C constitutes an unresolved global health problem. This infectious disease is caused by the hepatotropic hepatitis C virus (HCV), and it can lead to the occurrence of life-threatening medical conditions such as cirrhosis and liver cancer. Nowadays, major clinical concerns have arisen due to the appearance of multidrug resistance (MDR), and the side effects especially associated with long-term treatments. In this work, we report the first multitasking model for quantitative structure-biological effect relationships (mtk-QSBER), focused on the simultaneous exploration of anti-HCV activity and in vitro safety profiles related to the absorption, distribution, metabolism, elimination, and toxicity (ADMET)...
April 24, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28434152/compression-garments-and-recovery-from-exercise-a-meta-analysis
#15
REVIEW
Freddy Brown, Conor Gissane, Glyn Howatson, Ken van Someren, Charles Pedlar, Jessica Hill
BACKGROUND: Adequate recovery from exercise is essential to maintain performance throughout training and competition. While compression garments (CG) have been demonstrated to accelerate recovery, the literature is clouded by conflicting results and uncertainty over the optimal conditions of use. OBJECTIVES: A meta-analysis was conducted to assess the effects of CG on the recovery of strength, power and endurance performance following an initial bout of resistance, running, or non-load-bearing endurance (metabolic) exercise...
April 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28433473/sex-difference-in-the-heat-shock-response-to-high-external-load-resistance-training-in-older-humans
#16
Rose Njemini, Louis Nuvagah Forti, Tony Mets, Evelien Van Roie, Walter Coudyzer, Ingo Beyer, Christophe Delecluse, Ivan Bautmans
BACKGROUND: Literature reports on the effects of resistance training on heat shock protein70 (Hsp70) adaptation in older subjects are scarce. Moreover, the optimum training load required to obtain a beneficial adaptation profile is lacking. Therefore, the aim of this study was to determine the effects of resistance training at various external loads on extracellular Hsp70 (eHsp70) resting levels in older humans. METHODS: Fifty-six community-dwelling older (68±5years) volunteers were randomized to 12weeks of resistance training (3×/week) at either high-resistance (HIGH, 8 males, 10 females, 2×10-15 repetitions at 80%1RM), low resistance (LOW, 9 Males, 10 Females, 1×80-100 repetitions at 20%1RM), or mixed low resistance (LOW+, 9 Males, 10 Females, 1×60 repetitions at 20%1RM followed by 1×10-20 repetitions at 40%1RM)...
April 19, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28432739/effect-of-a-4-week-elastic-resistance-band-training-regimen-on-back-kinematics-in-horses-trotting-in-hand-and-on-the-lunge
#17
T Pfau, V Simons, N Rombach, N Stubbs, R Weller
REASONS FOR PERFORMING STUDY: Training and rehabilitation techniques aiming at improving core muscle strength may result in increased dynamic stability of the equine vertebral column. A system of elastic resistance bands is suggested to provide proprioceptive feedback during motion to encourage recruitment of core abdominal and hindquarter musculature for improved dynamic stability. OBJECTIVES: To quantify the effects of a specific resistance band system on back kinematics during trot in-hand and during lungeing at beginning and end of a 4-week exercise programme...
April 22, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28432607/impact-of-the-medical-specialty-on-knowledge-regarding-multidrug-resistant-organisms-and-strategies-toward-antimicrobial-stewardship
#18
Steffen Lebentrau, Christian Gilfrich, Malte W Vetterlein, Harald Schumacher, Philipp J Spachmann, Sabine D Brookman-May, Hans M Fritsche, Martin Schostak, Florian M Wagenlehner, Maximilian Burger, Matthias May
PURPOSE: Evidence is scarce on subject-specific knowledge of multidrug-resistant organisms and rational use of antibiotics. We aimed at evaluating attitude, perception, and knowledge about multidrug-resistant organisms (MDRO) and antibiotic prescribing among urologists versus other medical specialties. METHODS: Within the MR2-study (Multiinstitutional Reconnaissance of practice with MultiResistant bacteria), a questionnaire was conducted targeting general surgeons, internists, gynecologists, and urologists in 18 German hospitals...
April 21, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28431618/muscle-strength-and-power-in-persons-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#19
REVIEW
Mlk Jørgensen, U Dalgas, I Wens, L G Hvid
BACKGROUND: Multiple sclerosis (MS) is a chronic disease in the central nervous system which causes a number of physical symptoms including impairments of muscle mechanical function (muscle strength, muscle power and explosive muscle strength (~rate of force development, RFD)). However, a full overview of the existing knowledge regarding muscle mechanical function in persons with MS (PwMS) is still pending. OBJECTIVES: To systematically review 1) the psychometric properties of isokinetic dynamometry testing in PwMS, and 2) studies comparing muscle mechanical function in PwMS to matched healthy controls (HC)...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431408/the-effects-of-exercise-modality-during-additional-high-intensity-interval-training-upon-aerobic-fitness-and-strength-in-powerlifting-and-strongman-athletes
#20
Patroklos Androulakis-Korakakis, Louis Langdown, Adam Lewis, James Fisher, Paulo Gentil, Antonio Paoli, James Steele
Powerlifters and strongman athletes have a necessity for optimal levels of muscular strength whilst maintaining sufficient aerobic capacity to perform and recover between events. HIIT has been popularized for its efficacy in improving both aerobic fitness and strength but never assessed within the aforementioned population group. The present study looked to compare the effect of exercise modality, e.g. a traditional aerobic mode (AM), and strength mode, (SM), during HIIT upon aerobic fitness and strength. Sixteen well resistance trained male participants, currently competing in powerlifting and strongman events, completed 8 weeks of approximately effort- and volume-matched HIIT in 2 groups: AM (cycling, n=8) and SM (resistance training, n=8)...
April 21, 2017: Journal of Strength and Conditioning Research
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