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https://www.readbyqxmd.com/read/29913450/lower-cognitive-function-in-older-patients-with-lower-muscle-strength-and-muscle-mass
#1
Romee van Dam, Jeanine M Van Ancum, Sjors Verlaan, Kira Scheerman, Carel G M Meskers, Andrea B Maier
BACKGROUND: Low muscle strength and muscle mass are associated with adverse outcomes in older hospitalized patients. The aim of this study was to assess the association between cognitive functioning and muscle strength and muscle mass in hospitalized older patients. METHODS: This prospective inception cohort included 378 patients aged 70 years or older. At admission patients were assessed for cognitive functioning by use of the Six-Item Cognitive Impairment Test (6-CIT)...
June 18, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29913306/selective-dentin-etching-a-potential-method-to-improve-bonding-effectiveness-of-universal-adhesives
#2
Thiago Henrique Scarabello Stape, Patrik Wik, Mustafa Murat Mutluay, Anas Aaqel Salim Al-Ani, Arzu Tezvergil-Mutluay
OBJECTIVES: To evaluate whether selective dentin etching protocols using reduced phosphoric acid (H3 PO4 ) etching-times would affect the resin-dentin interaction of a universal adhesive to improve long-term bonding effectiveness. METHODS: Mid-coronal flat dentin surfaces were produced on sound third molars, selectively etched with 32% H3 PO4 for 3, 5, 10 or 15 s and bonded with a universal adhesive (Scotchbond Universal, 3 M ESPE: SU). SU in self-etch mode and a three-step etch-and-rinse adhesive were used as control groups...
June 8, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29912858/effect-of-caffeine-on-sprint-cycling-in-experienced-cyclists
#3
Dawn E Anderson, Sarah E LeGrand, Reece D McCart
Anderson, DE, LeGrand, SE, and McCart, RD. Effect of caffeine on sprint cycling in experienced cyclists. J Strength Cond Res XX(X): 000-000, 2018-Research regarding the ergogenic effects of caffeine (CAF) in anaerobic activity remains inconclusive. However, some researchers have found significant improvements in anaerobic performance when testing specifically trained athletes. A double-blind, placebo-controlled, counterbalanced, cross-over design was implemented to assess the impact of CAF on a 30-second Wingate Anaerobic Test (WAnT) in experienced cyclists...
June 15, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912857/stretch-could-reduce-hamstring-injury-risk-during-sprinting-by-right-shifting-the-length-torque-curve
#4
Mianfang Ruan, Li Li, Chen Chen, Xie Wu
Ruan, M, Li, L, Chen, C, and Wu, X. Stretch could reduce hamstring injury risk during sprinting by right shifting the length-torque curve. J Strength Cond Res XX(X): 000-000, 2018-It was hypothesized that static stretch would shift the length-torque curve to the right, which may reduce the risk of muscle strain injuries. The purpose of this study was to evaluate the acute effects of static stretching of hamstring (SSH) on the risk of hamstring injury during sprinting indicated by the shift of the length-torque relationship...
June 15, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912404/ventromedial-prefrontal-volume-in-adolescence-predicts-hyperactive-inattentive-symptoms-in-adulthood
#5
Matthew D Albaugh, Masha Ivanova, Bader Chaarani, Catherine Orr, Nicholas Allgaier, Robert R Althoff, Nicholas D' Alberto, Kelsey Hudson, Scott Mackey, Philip A Spechler, Tobias Banaschewski, Rüdiger Brühl, Arun L W Bokde, Uli Bromberg, Christian Büchel, Anna Cattrell, Patricia J Conrod, Sylvane Desrivières, Herta Flor, Vincent Frouin, Jürgen Gallinat, Robert Goodman, Penny Gowland, Yvonne Grimmer, Andreas Heinz, Viola Kappel, Jean-Luc Martinot, Marie-Laure Paillère Martinot, Frauke Nees, Dimitri Papadopoulos Orfanos, Jani Penttilä, Luise Poustka, Tomáš Paus, Michael N Smolka, Maren Struve, Henrik Walter, Robert Whelan, Gunter Schumann, Hugh Garavan, Alexandra S Potter
Youths with attention-deficit/hyperactivity disorder symptomatology often exhibit residual inattention and/or hyperactivity in adulthood; however, this is not true for all individuals. We recently reported that dimensional, multi-informant ratings of hyperactive/inattentive symptoms are associated with ventromedial prefrontal cortex (vmPFC) structure. Herein, we investigate the degree to which vmPFC structure during adolescence predicts hyperactive/inattentive symptomatology at 5-year follow-up. Structural equation modeling was used to test the extent to which adolescent vmPFC volume predicts hyperactive/inattentive symptomatology 5 years later in early adulthood...
April 18, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29912081/combined-effects-of-self-myofascial-release-and-dynamic-stretching-on-range-of-motion-jump-sprint-and-agility-performance
#6
Erick D Richman, Brian M Tyo, Clayton R Nicks
Richman, ED, Tyo, BM, and Nicks, CR. Combined effects of self-myofascial release and dynamic stretching on range of motion, jump, sprint, and agility performance. J Strength Cond Res XX(X): 000-000, 2018-Massage has been used as both a pre- and post-exercise modality with purported benefits to flexibility and athletic performance. This study was designed to determine the effect of a 6-minute protocol of self massage known as self-myofascial release (SMR) using a foam rolling device in conjunction with a general warm-up and sport-specific dynamic stretching (DS) session on flexibility and explosive athletic performance in a sample of 14 female collegiate athletes...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912079/impact-of-physical-performance-and-anthropometric-characteristics-on-serve-velocity-in-elite-junior-tennis-players
#7
Janina Fett, Alexander Ulbricht, Alexander Ferrauti
Fett, J, Ulbricht, A, and Ferrauti, A. Impact of physical performance and anthropometric characteristics on serve velocity in elite junior tennis players. J Strength Cond Res XX(X): 000-000, 2018-This study aimed to investigate the impact of physical performance components and anthropometric characteristics on serve velocity (SV) in elite junior tennis players depending on the sex and age group. A sample of the best 1,019 (male = 625, female = 394) junior squad tennis players of the German Tennis Federation participated in the study involving complex anthropometric measurements (body height, body mass, sitting height, and arm span) and physical tests (e...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912077/improved-functional-power-over-a-5-week-period-comparison-of-combined-weight-training-to-flexible-barbell-training
#8
Anthony Caterisano, Randolph Hutchison, Clarence Parker, Scott James, Stephen Opskar
Caterisano, A, Hutchison, R, Parker, C, James, S, and Opskar, S. Improved functional power over a 5-week period: Comparison of combined weight training with flexible barbell training. J Strength Cond Res XX(X): 000-000, 2018-Previous studies demonstrated increased power development with various resistance-training modes over short training periods of 4-7 weeks through neuromuscular adaptations. The purpose of this study was to compare 2 different power-training regimens over a 5-week period: combined weight training program (CT) using speed-lifts and plyometrics vs...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912076/short-term-plyometric-jump-training-improves-repeated-sprint-ability-in-prepuberal-male-soccer-players
#9
Yassine Negra, Helmi Chaabene, Jaime Fernandez-Fernandez, Senda Sammoud, Raja Bouguezzi, Olaf Prieske, Urs Granacher
Negra, Y, Chaabene, H, Fernandez-Fernandez, J, Sammoud, S, Bouguezzi, R, Prieske, O, and Granacher, U. Short-term plyometric jump training improves repeated-sprint ability in prepuberal male soccer players. J Strength Cond Res XX(X): 000-000, 2018-This study examined the effects of a short-term (i.e., 8 weeks) combined horizontal and vertical plyometric jump training (PJT) program in combination with regular soccer-specific training as compared with soccer-specific training only on jump and change of direction (CoD) performances, speed, and repeated-sprint ability (RSA) in prepuberal male soccer players...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912075/fitness-monitoring-in-elite-soccer-players-group-vs-individual-analyses
#10
Alireza Rabbani, Mehdi Kargarfard, Craig Twist
Rabbani, A, Kargarfard, M, and Twist, C. Fitness monitoring in elite soccer players; group vs. individual analyses. J Strength Cond Res XX(X): 000-000, 2018-The aims of this study were to (a) examine changes in group and individual HR measures during a submaximal warm-up test, and (b) investigate the relationship between accumulated internal training loads and HR changes during an in-season phase among elite soccer players (n = 14). Before and after an in-season phase (24 days), exercise HR (HRex) and HR recovery (HRR) expressed either as the number of beats recovered (HRR60s) or as the mean HR (HRpost1) during 1 minute of recovery were analyzed...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29912073/an-assessment-of-running-power-as-a-training-metric-for-elite-and-recreational-runners
#11
Rachel L Aubry, Geoff A Power, Jamie F Burr
Aubry, RL, Power, GA, and Burr, JF. An assessment of running power as a training metric for elite and recreational runners. J Strength Cond Res XX(X): 000-000, 2018-Power, as a testing and training metric to quantify effort, is well accepted in cycling, but is not commonly used in running to quantify effort or performance. This study sought to investigate a novel training tool, the Stryd Running Power Meter, and the applicability of running power (and its individually calculated run mechanics) to be a useful surrogate of metabolic demand (V[Combining Dot Above]O2), across different running surfaces, within different caliber runners...
June 14, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29911682/contact-guidance-is-cell-cycle-dependent
#12
Kamyar Esmaeili Pourfarhangi, Edgar Cardenas De La Hoz, Andrew R Cohen, Bojana Gligorijevic
Cancer cell migration is essential for metastasis, during which cancer cells move through the tumor and reach the blood vessels. In vivo , cancer cells are exposed to contact guidance and chemotactic cues. Depending on the strength of such cues, cells will migrate in a random or directed manner. While similar cues may also stimulate cell proliferation, it is not clear whether cell cycle progression affects migration of cancer cells and whether this effect is different in random versus directed migration. In this study, we tested the effect of cell cycle progression on contact guided migration in 2D and 3D environments, in the breast carcinoma cell line, FUCCI-MDA-MB-231...
September 2018: APL bioengineering
https://www.readbyqxmd.com/read/29911595/the-influence-of-personality-traits-on-perception-of-pain-in-older-adults-findings-from-the-swedish-national-study-on-aging-and-care-blekinge-study
#13
Lena Sandin Wranker, Mikael Rennemark, Sölve Elmståhl, Johan Berglund
Background and aims The experience of pain may vary in accordance with personality traits and individual characteristics. Neuroticism is demonstrated to constitute a vulnerability factor among younger and middle-aged pain patients. The combination of openness and neuroticism is associated with high anxiety/depression scores among adult individuals with chronic conditions. The aim of this study was to investigate possible associations between pain and the personality dimensions of neuroticism, extroversion, openness, agreeableness and conscientiousness among persons aged 60 years and older...
December 29, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29911491/performance-determinants-of-fixed-gear-cycling-during-criteriums
#14
Nicolas Babault, Maxime Poisson, Guiseppe Cimadoro, Carole Cometti, Christos Païzis
Nowadays, fixed gear competitions on outdoor circuits such as criteriums are regularly organized worldwide. To date, no study has investigated this alternative form of cycling. The purpose of the present study was to examine fixed gear performance indexes and to characterize physiological determinants of fixed gear cyclists. This study was carried out in two parts. Part 1 (n = 36) examined correlations between performance indexes obtained during a real fixed gear criterium (time trial, fastest laps, averaged lap time during races, fatigue indexes) and during a sprint track time trial...
June 17, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29911287/synthesis-and-application-of-triclosan-methacrylate-monomer-in-resin-composites
#15
Andreia Bolzan de Paula, Jesus Roberto Taparelli, Roberta Caroline Bruschi Alonso, Lúcia Helena Innocentini-Mei, Regina M Puppin-Rontani
OBJECTIVES: To evaluate the antibacterial activity, bacterial viability, cytotoxicity, and mechanical/physical properties of a novel methacrylate triclosan-derivative monomer (TM) incorporated in dental resin composite. METHODS: TM was synthesized by esterification and, after characterization by FT-IR, was added to an experimental composite. Samples were divided into two groups according to TM presence, i.e., C1 (control) and C2 (C1 + 14.4% TM). Microbiological properties: Specimens (C1 and C2) were prepared and placed on bacterial suspensions of Streptococcus mutans...
June 18, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29910785/cell-free-protein-synthesis-from-fast-growing-vibrio-natriegens
#16
Jurek Failmezger, Steffen Scholz, Bastian Blombach, Martin Siemann-Herzberg
Vibrio natriegens constitutes one of the fastest-growing nonpathogenic bacteria and a potential novel workhorse for many biotechnological applications. Here, we report the development of a Vibrio -based cell-free protein synthesis system (CFPS). Specifically, up to 0.4 g L-1 eGFP could be successfully synthesized in small-scale batch reactions using cell-free extract obtained from fast-growing V. natriegens cultures. Versatile CFPS system characterization attained by combining the analyses of key metabolites for translation and ribosomes revealed limitations regarding rRNA stability and critical substrate consumption (e...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29910449/four-weeks-of-off-season-training-improves-peak-oxygen-consumption-in-female-field-hockey-players
#17
Lindsey T Funch, Erik Lind, Larissa True, Deborah Van Langen, John T Foley, James F Hokanson
The purpose of the study was to examine the changes in peak oxygen consumption ( V ˙O2peak ) and running economy (RE) following four-weeks of high intensity training and concurrent strength and conditioning during the off-season in collegiate female field hockey players. Fourteen female student-athletes (age 19.29 ± 0.91 years) were divided into two training groups, matched from baseline V ˙O2peak : High Intensity Training (HITrun ; n = 8) and High Intensity Interval Training (HIIT; n = 6). Participants completed 12 training sessions...
November 28, 2017: Sports (Basel)
https://www.readbyqxmd.com/read/29910448/comparison-of-the-relationship-between-lying-and-standing-ultrasonography-measures-of-muscle-morphology-with-isometric-and-dynamic-force-production-capabilities
#18
John P Wagle, Kevin M Carroll, Aaron J Cunanan, Christopher B Taber, Alexander Wetmore, Garett E Bingham, Brad H DeWeese, Kimitake Sato, Charles A Stuart, Michael H Stone
The purpose of the current study was (1) to examine the differences between standing and lying measures of vastus lateralis (VL), muscle thickness (MT), pennation angle (PA), and cross-sectional area (CSA) using ultrasonography; and (2) to explore the relationships between lying and standing measures with isometric and dynamic assessments of force production-specifically peak force, rate of force development (RFD), impulse, and one-repetition maximum back squat. Fourteen resistance-trained subjects (age = 26...
November 21, 2017: Sports (Basel)
https://www.readbyqxmd.com/read/29910443/effects-of-a-six-week-strength-training-programme-on-change-of-direction-performance-in-youth-team-sport-athletes
#19
Frank A Bourgeois, Paul Gamble, Nic D Gill, Mike R McGuigan
This study investigated the effects of eccentric phase-emphasis strength training (EPE) on unilateral strength and performance in 180- and 45-degree change of direction (COD) tasks in rugby union players. A 12-week cross-over design was used to compare the efficacy of resistance training executed with 3 s eccentric duration (EPE, n = 12) against conventional strength training, with no constraints on tempo (CON, n = 6). Players in each condition were categorised as 'fast' (FAST) or 'slow' (SLOW) using median trial times from baseline testing...
October 24, 2017: Sports
https://www.readbyqxmd.com/read/29910426/the-relationships-between-hip-and-knee-extensor-cross-sectional-area-strength-power-and-potentiation-characteristics
#20
Timothy J Suchomel, Michael H Stone
The purpose of this study was to examine the relationships between muscle cross-sectional area (CSA), maximal strength, power output, and maximum potentiation characteristics. The vastus lateralis and biceps femoris CSA, one repetition maximum (1RM) back squat, 1RM concentric-only half-squat (COHS) strength, static jump power output, and maximum potentiation characteristics of 17 resistance-trained men was assessed during several testing sessions. Pearson's correlation coefficients were used to examine the relationships between CSA, strength, power output, and maximum potentiation measures...
September 5, 2017: Sports (Basel)
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