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https://www.readbyqxmd.com/read/29465608/muscle-activation-patterns-of-lower-body-musculature-among-three-traditional-lower-body-exercises-in-trained-women
#1
Max R Paquette, Dana K Fuller, Jennifer L Caputo, John M Coons
The deadlift and back and front squats are common multi-joint, lower body resistance exercises that target similar musculature. To our knowledge, muscle activity measured via surface electromyography (EMG) has never been analyzed among these three exercises. Furthermore, most literature examining this topic has included male participants creating a void in the literature for the female population. Knowledge of lower body muscle activation among these three exercises can aid coaches, trainers, and therapists for training and rehabilitative purposes...
February 15, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29446351/dynamical-quantum-phase-transitions-a-review
#2
Markus Heyl
Quantum theory provides an extensive framework for the description of the equilibrium properties of quantum matter. Yet experiments in quantum simulators have now opened up a route towards generating quantum states beyond this equilibrium paradigm. While these states promise to show properties not constrained by equilibrium principles such as the equal a priori probability of the microcanonical ensemble, identifying general properties of nonequilibrium quantum dynamics remains a major challenge especially in view of the lack of conventional concepts such as free energies...
February 15, 2018: Reports on Progress in Physics
https://www.readbyqxmd.com/read/29445428/the-danger-zone-in-the-anterior-neck-anatomical-landmarks-to-avoid-injury-to-anterior-jugular-vein-during-face-lift-and-neck-lift
#3
Andrew M Swiergosz, J Stephen Gunn, Steven A Schulz, Joshua T Henderson, Joshua H Choo, Arian Mowlavi, Bradon J Wilhelmi
Background : An estimated 125,711 face-lifts and 54,281 neck-lifts were performed in 2015. Regardless of the technique employed, facial and neck flap elevation carries with it anatomical risk of which any surgeon performing these procedures should be aware of. Statistics related to anterior jugular vein injury during these procedures have not been published. Objective : To define a "danger zone" that will contain both of the anterior jugular veins on the basis of anatomical landmarks to aid surgeons with planning their surgical approach during rhytidectomy in the anterior neck region...
2018: Eplasty
https://www.readbyqxmd.com/read/29439817/forearm-torque-and-lifting-strength-normative-data
#4
Peter Axelsson, Per Fredrikson, Anders Nilsson, Jonny K Andersson, Johan Kärrholm
PURPOSE: To establish reference values for new methods designed to quantitatively measure forearm torque and lifting strength and to compare these values with grip strength. METHODS: A total of 499 volunteers, 262 males and 237 females, aged 15 to 85 (mean, 44) years, were tested for lifting strength and forearm torque with the Kern and Baseline dynamometers. These individuals were also tested for grip strength with a Jamar dynamometer. Standardized procedures were used and information about sex, height, weight, hand dominance, and whether their work involved high or low manual strain was collected...
February 10, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29439792/-considerations-relating-to-the-body-in-the-jewish-religion
#5
Michel Lévy
In the Jewish religion, the body is the receptacle of the soul, and both are connected. Created in God's image, the body must be respected by the caregiver and by the patient. Judaism imposes constraints, but these restrictions must be lifted if a person's life is in danger.
January 2018: Soins; la Revue de Référence Infirmière
https://www.readbyqxmd.com/read/29439373/factors-associated-with-high-physical-exertion-during-manual-lifting-cross-sectional-study-among-200-blue-collar-workers
#6
Lars L Andersen, Emil Sundstrup, Mikkel Brandt, Efat Lali Dastjerdi, Roger Persson, Markus D Jakobsen
BACKGROUND: High physical exertion during work is a risk factor for back pain and long-term sickness absence. OBJECTIVE: To investigate which factors are associated with physical exertion during manual lifting. METHODS: From 14 workplaces across Denmark, 200 blue-collar workers reported perceived physical exertion (Borg-CR10) during manual lifting from floor to table height of 5, 10, 20 and 30 kg at the beginning and end of the working day...
2018: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29436289/a-comparative-analysis-of-lumbar-spine-mechanics-during-barbell-and-crate-lifting-implications-for-occupational-lifting-task-assessments
#7
Jackie D Zehr, Danielle R Carnegie, Timothy N Welsh, Tyson A C Beach
PURPOSE: To compare the effects of object handled and handgrip used on lumbar spine motion and loading during occupational lifting task simulations. METHODS: Eight male and eight female volunteers performed barbell and crate lifts with a pronated (barbell) and neutral (crate) handgrip. The mass of barbells/crates lifted was identical across the objects and fixed at 11.6 kg and 9.3 kg for men and women, respectively. The initial heights of barbells/crates were individualized to mid-shank level...
February 13, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29431546/the-trainability-of-adolescent-soccer-players-to-brief-periodized-complex-training
#8
Athanasios Chatzinikolaou, Konstantinos Michaloglou, Alexandra Avloniti, Diamanda Leontsini, Chariklia K Deli, Dimitris Vlachopoulos, Luis Gracia-Marco, Sotirios Arsenis, Ioannis Athanailidis, Dimitrios Draganidis, Athanasios Z Jamurtas, Craig A Williams, Ioannis G Fatouros
PURPOSE: Τo investigate the effect of a complex, short-term strength/power training protocol on performance and body composition of elite early-adolescent soccer players. METHODS: Twenty-two players (14-15 years) were randomly assigned to (a) an experimental (EG, n=12, participated in a 5-week training protocol with traditional multi-joint power resistance exercises, Olympic-style lifts, plyometric drills and speed work, four times/week) or (b) a control group (CG, n=10)...
February 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29394446/optimal-specifications-for-the-advanced-pedestrian-legform-impactor
#9
Takahiro Isshiki, Jacobo Antona-Makoshi, Atsuhiro Konosu, Yukou Takahashi
This study addresses the virtual optimization of the technical specifications for a recently developed Advanced Pedestrian Legform Impactor (aPLI). The aPLI incorporates a number of enhancements for improved lower limb injury predictability with respect to its predecessor, the FlexPLI. It also incorporates an attached Simplified Upper Body Part (SUBP) that enables the impactor's applicability to evaluate pedestrian's lower limb injury risk also with high-bumper cars. The response surface methodology was applied to optimize both the aPLI's lower limb and SUBP specifications, while imposing a total mass upper limit of 25 kg that complies with international standards for maximum weight lifting allowed for a single operator in the laboratory setting...
November 2017: Stapp Car Crash Journal
https://www.readbyqxmd.com/read/29386557/spatial-memory-is-as-important-as-weapon-and-body-size-for-territorial-ownership-in-a-lekking-hummingbird
#10
Marcelo Araya-Salas, Paulina Gonzalez-Gomez, Katarzyna Wojczulanis-Jakubas, Virgilio López, Timothy F Wright
Advanced cognitive abilities have long been hypothesized to be important in mating. Yet, most work on sexual selection has focused on morphological traits and its relevance for cognitive evolution is poorly understood. We studied the spatial memory of lekking long-billed hermits (Phaethornis longirostris) and evaluated its role in lek territory ownership, the magnitude of its effect compared to phenotypic traits expected to influence sexual selection, and whether its variation is indicated in the structure of mating vocal signal...
January 31, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29385024/use-of-an-integrated-research-practice-partnership-to-improve-outcomes-of-a-community-based-strength-training-program-for-older-adults-reach-and-effect-of-lifelong-improvements-through-fitness-together-lift
#11
Meghan L Wilson, Thomas E Strayer, Rebecca Davis, Samantha M Harden
Only 17% of older adults meet the recommendations for two days of full body strength training that is associated with improved functional fitness; reduced risk of falls; and reduced morbidity and mortality rates. Community-based interventions are recommended as they provide supportive infrastructure to reach older adults and impact strength training behaviors. Scalability and sustainability of these interventions is directly linked with setting-level buy-in. Adapting an intervention through an integrated research-practice partnership may improve individual and setting-level outcomes...
January 31, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29373426/the-tapering-practices-of-strongman-athletes
#12
P W Winwood, M K Dudson, D Wilson, J K H Mclaren-Harrison, V Redjkins, H J Pritchard, J W L Keogh
This study provides the first empirical evidence of how strongman athletes taper for strongman competitions. Strongman athletes (n=454) (mean ±SD: 33.2 ±8.0y, 178.1 ±10.6cm, 108.6 ±27.9kg, 12.6 ±8.9y general resistance training, 5.3 ±5.0y strongman implement training) completed a self-reported 4-page internet survey on tapering practices. Analysis by gender (male and female), age (≤ 30 and >30y), body mass (≤ 105 and >105kg) and competitive standard (local/regional amateur, national amateur and professional) was conducted...
January 24, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29356062/mouldable-thermoplastic-glue-on-frog-supportive-shoes-change-hoof-kinetics-in-normal-and-obese-shetland-ponies
#13
J Sleutjens, F M Serra Bragança, M W van Empelen, R E Ten Have, J de Zwaan, E Roelfsema, M Oosterlinck, W Back
BACKGROUND: Obesity and hyperinsulinaemia are frequently encountered in the equine population and risk factors for the development of laminitis. There are many options for hoof support that claim a beneficial effect, but often the scientific evidence is scarce. OBJECTIVES: To quantify the effect of frog-supportive shoes on hoof kinetics in normal and obese ponies. STUDY DESIGN: Controlled in vivo trial. METHODS: Ten Shetland mares (n = 10) with a normal (n = 5) or obese (n = 5) body condition were led over a dynamically calibrated pressure plate before (T0), immediately after (T1), and 72 hours (T2) after application of the shoes...
January 21, 2018: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29352685/factors-associated-with-posterior-cruciate-ligament-tightness-during-cruciate-retaining-total-knee-arthroplasty
#14
Kazuhisa Hatayama, Masanori Terauchi, Shogo Hashimoto, Kenichi Saito, Hiroshi Higuchi
BACKGROUND: The purpose of our study was to identify factors affecting posterior cruciate ligament (PCL) tightness during cruciate-retaining total knee arthroplasty. METHODS: A total of 225 varus osteoarthritic knees that underwent cruciate-retaining total knee arthroplasty were included in this study. When the flexion gap was tighter than the extension gap after all bone resection and the lift-off sign was positive during surgery, the PCL was released. The association between PCL release and potential risk factors, such as age, gender, body mass index, preoperative range of motion, anterior cruciate ligament status, preoperative hip-knee-ankle angle (HKA), decrease in posterior condylar offset, and also change in tibial posterior slope angle (TPSA) from preoperative to postoperative measurement, was evaluated by univariate and multivariate logistic regression analyses...
December 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29350652/complications-associated-with-brachioplasty-a-literature-review
#15
Andrea Sisti, Roberto Cuomo, Luca Milonia, Juri Tassinari, Antonio Castagna, Antonio Castagna, Cesare Brandi, Luca Grimaldi, Carlo D'Aniello, Giuseppe Nisi
BACKGROUND: Paralleling the growth of bariatric surgery, the demand for post-bariatric body-contouring surgery is increasing. Weight loss is the main cause, although not the only one, that drives patients to arm lift surgery. Several surgical techniques have been proposed over the years. Our aim was to consider the complications and outcomes according to the performed technique, through a wide review of the literature. METHODS: A search on PubMed/Medline was performed using "brachioplasty", "upper arm lifting", and "techniques" as key words...
January 16, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29349905/would-you-like-to-add-a-weight-after-this-blood-pressure-doctor-discovery-of-potentially-actionable-associations-between-the-provision-of-multiple-screens-in-primary-care
#16
Sumeet Kalia, Michelle Greiver, Xu Zhao, Christopher Meaney, Rahim Moineddin, Babak Aliarzadeh, Eva Grunfeld, Frank Sullivan
RATIONALE, AIMS, AND OBJECTIVE: Guidelines recommend screening for risk factors associated with chronic diseases but current electronic prompts have limited effects. Our objective was to discover and rank associations between the presence of screens to plan more efficient prompts in primary care. METHODS: Risk factors with the greatest impact on chronic diseases are associated with blood pressure, body mass index, waist circumference, glycaemic and lipid levels, smoking, alcohol use, diet, and exercise...
January 19, 2018: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/29339982/relationships-between-mechanical-variables-in-the-traditional-and-close-grip-bench-press
#17
Robert G Lockie, Samuel J Callaghan, Matthew R Moreno, Fabrice G Risso, Tricia M Liu, Alyssa A Stage, Samantha A Birmingham-Babauta, John J Stokes, Dominic V Giuliano, Adrina Lazar, DeShaun L Davis, Ashley J Orjalo
The study aim was to determine relationships between mechanical variables in the one-repetition maximum (1RM) traditional bench press (TBP) and close-grip bench press (CGBP). Twenty resistance-trained men completed a TBP and CGBP 1RM. The TBP was performed with the preferred grip; the CGBP with a grip width of 95% biacromial distance. A linear position transducer measured: lift distance and duration; work; and peak and mean power, velocity, and force. Paired samples t-tests (p < 0.05) compared the 1RM and mechanical variables for the TBP and CGBP; effect sizes (d) were also calculated...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29336621/beta-alanine-does-not-enhance-the-effects-of-resistance-training-in-older-adults
#18
Christopher H Bailey, Joseph F Signorile, Arlette C Perry, Kevin A Jacobs, Nicholas D Myers
To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60-82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15-25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM)...
January 16, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29334580/the-power-load-relationship-during-a-countermovement-jump-a-joint-level-analysis
#19
Kym J Williams, Dale W Chapman, Elissa J Phillips, Nick Ball
This study aimed to investigate if hip, knee and ankle peak power is influenced by the relative load lifted, altering the joint and system load-power relationship during a countermovement jump (CMJ). Twenty-Three male national representative athletes (age: 20.3 ± 3.1y, squat 1RM: 133.8 ± 24.8kg) completed three CMJs at relative barbell loads of 0, 10, 20, 30 and 40% of an athlete's estimated back squat 1RM. Ground reaction force and joint kinematics were captured using a 16 camera motion capture array integrated with two in ground tri-axial force plates...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29332749/long-term-effect-of-direction-movement-control-training-on-female-patients-with-chronic-neck-pain
#20
Zohreh Khosrokiani, Amir Letafatkar, Yahya Sokhanguei
BACKGROUND: Treatment of movement faults in the neck is known as an important factor in treatment of chronic neck pain. Along with the identification of site and direction of the faults, direction-movement control intervention retrains the control of the movement faults. PURPOSE: This study was designed to investigate long-term effects of a direction-movement control training on pain, disability, head repositioning accuracy, function, cervical flexor endurance, and range of motion in female patients with chronic nonspecific neck pain...
January 2018: Journal of Bodywork and Movement Therapies
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