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Strength &,conditioning

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https://www.readbyqxmd.com/read/28538326/technology-in-strength-and-conditioning-tracking-lower-limb-exercises-with-wearable-sensors
#1
Martin A OʼReilly, Darragh F Whelan, Tomas E Ward, Eamonn Delahunt, Brian Caulfield
O'Reilly, MA, Whelan, DF, Ward, TE, Delahunt, E, and Caulfield, B. Technology in strength and conditioning tracking lower-limb exercises with wearable sensors. J Strength Cond Res 31(6): 1726-1736, 2017-Strength and conditioning (S&C) coaches offer expert guidance to help those they work with achieve their personal fitness goals. However, because of cost and availability issues, individuals are often left training without expert supervision. Recent developments in inertial measurement units (IMUs) and mobile computing platforms have allowed for the possibility of unobtrusive motion tracking systems and the provision of real-time individualized feedback regarding exercise performance...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538323/the-effect-of-a-psychomotor-education-program-on-the-static-balance-of-children-with-intellectual-disability
#2
Eleni G Fotiadou, Konstantina H Neofotistou, Paraskevi F Giagazoglou, Vasilios K Tsimaras
Fotiadou, EG, Neofotistou, KH, Giagazoglou, PF, and Tsimaras, VK. The effect of a psychomotor education program on the static balance of children with intellectual disability. J Strength Cond Res 31(6): 1702-1708, 2017-Children with intellectual disability (ID) demonstrate lower balance ability which results in substantial delays in motor growth and limits their function level. Psychomotor education comprises a holistic movement approach, with the aim to improve all aspects of each child personality. The aim of this study was to assess the effect of a psychomotor education program on static balance of school-aged children with ID...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538321/muscle-activation-differs-between-partial-and-full-back-squat-exercise-with-external-load-equated
#3
Josinaldo J da Silva, Brad J Schoenfeld, Priscyla N Marchetti, Silvio L Pecoraro, Julia M D Greve, Paulo H Marchetti
da Silva, JJ, Schoenfeld, BJ, Marchetti, PN, Pecoraro, SL, Greve, JMD, and Marchetti, PH. Muscle activation differs between partial and full back squat exercise with external load equated. J Strength Cond Res 31(6): 1688-1693, 2017-Changes in range of motion affect the magnitude of the load during the squat exercise and, consequently, may influence muscle activation. The purpose of this study was to evaluate muscle activation between the partial and full back squat exercise with external load equated on a relative basis between conditions...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538320/the-effects-of-a-heel-wedge-on-hip-pelvis-and-trunk-biomechanics-during-squatting-in-resistance-trained-individuals
#4
Jesse M Charlton, Connor A Hammond, Christopher K Cochrane, Gillian L Hatfield, Michael A Hunt
Charlton, JM, Hammond, CA, Cochrane, CK, Hatfield, GL, and Hunt, MA. The effects of a heel wedge on hip, pelvis, and trunk biomechanics during squatting in resistance trained individuals. J Strength Cond Res 31(6): 1678-1687, 2017-Barbell back squats are a popular exercise for developing lower extremity strength and power. However, this exercise has potential injury risks, particularly to the lumbar spine, pelvis, and hip joint. Previous literature suggests heel wedges as a means of favorably adjusting trunk and pelvis kinematics with the intention of reducing such injury risks...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538319/reliability-and-accuracy-of-a-standardized-shallow-water-running-test-to-determine-cardiorespiratory-fitness
#5
Elizabeth F Nagle, Mary E Sanders, Bethany B Gibbs, Barry A Franklin, Jacquelyn A Nagle, Philip J Prins, Caleb D Johnson, Robert J Robertson
Nagle, EF, Sanders, ME, Gibbs, BB, Franklin, BA, Nagle, JA, Prins, PJ, Johnson, CD, and Robertson, RJ. Reliability and accuracy of a standardized shallow water running test to determine cardiorespiratory fitness. J Strength Cond Res 31(6): 1669-1677, 2017-A standardized fitness assessment is critical for the development of an individualized exercise prescription. Although the benefits of aquatic exercise have been well established, there remains the need for a standardized nonswimming protocol to accurately assess cardiorespiratory fitness (CRF) in shallow water...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538318/do-fencers-require-a-weapon-specific-approach-to-strength-and-conditioning-training
#6
Anthony N Turner, Chris J Bishop, Jon A Cree, Michael L Edwards, Shyam Chavda, Paul J Read, David M J Kirby
Turner, AN, Bishop, CJ, Cree, JA, Edwards, ML, Chavda, S, Read, PJ, and Kirby, DMJ. Do fencers require a weapon-specific approach to strength and conditioning training? J Strength Cond Res 31(6): 1662-1668, 2017-There are 3 types of weapons used in Olympic fencing: the épée, foil, and sabre. The aim of this study was to determine if fencers exhibited different physical characteristics across weapons. Seventy-nine male (n = 46) and female (n = 33) national standard fencers took part in this study. Fencers from each weapon (male and female), i...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538315/evaluation-of-the-effectiveness-of-compression-garments-on-autonomic-nervous-system-recovery-after-exercise
#7
Alessandro Piras, Giorgio Gatta
Piras, A and Gatta, G. Evaluation of the effectiveness of compression garments on autonomic nervous system recovery after exercise. J Strength Cond Res 31(6): 1636-1643, 2017-The aim of this investigation was to evaluate the recovery pattern of a whole-body compression garment on hemodynamic parameters and on autonomic nervous system (ANS) activity after a swimming performance. Ten young male athletes were recruited and tested in 2 different days, with and without wearing the garment during the recovery phase...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538314/do-neuromuscular-dentistry-designed-mouthguards-enhance-dynamic-movement-ability-in-competitive-athletes
#8
Joshua A Cotter, Steve T Jamison, Sarah A Schloemer, Ajit M W Chaudhari
Cotter, JA, Jamison, ST, Schloemer, SA, and Chaudhari, AMW. Do neuromuscular dentistry-designed mouthguards enhance dynamic movement ability in competitive athletes? J Strength Cond Res 31(6): 1627-1635, 2017-The purpose of this study was to examine the effect of a neuromuscular dentistry-designed mouthguard (NMDD) on dynamic movement ability. Forty-two competitive athletes (8 women, 21.9 ± 2.9 years, 66.8 ± 18.8 kg, 1.68 ± 0.11 m; 34 men, 22.8 ± 4.8 years, 77.4 ± 12.7 kg, 1.78 ± 0.08 m) with greater than 2 years' experience in their designated sport were enrolled in the study...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538313/the-effects-of-accentuated-eccentric-loading-on-the-drop-jump-exercise-and-the-subsequent-postactivation-potentiation-response
#9
Lee A Bridgeman, Michael R McGuigan, Nicholas D Gill, Deborah K Dulson
Bridgeman, LA, McGuigan, MR, Gill, ND, and Dulson, DK. The effects of accentuated eccentric loading on the drop jump exercise and the subsequent postactivation potentiation response. J Strength Cond Res 31(6): 1620-1626, 2017-The aims of this study were (a) to investigate the acute effects of different drop jump (DJ) accentuated eccentric loading (AEL) protocols and (b) to investigate the effect of these AEL DJ protocols on subsequent countermovement jump (CMJ) performance. The subjects were 12 strength-trained athletes; initially, baseline CMJ performance was assessed and individual optimal DJ drop height identified...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538307/can-cold-water-immersion-enhance-recovery-in-elite-olympic-weightlifters-an-individualized-perspective
#10
Jan Schimpchen, Maximilian Wagner, Alexander Ferrauti, Michael Kellmann, Mark Pfeiffer, Tim Meyer
Schimpchen, J, Wagner, M, Ferrauti, A, Kellmann, M, Pfeiffer, M, and Meyer, T. Can cold water immersion enhance recovery in elite Olympic weightlifters? An individualized perspective. J Strength Cond Res 31(6): 1569-1576, 2017-We investigated whether cold water immersion (CWI) after intensive training sessions can enhance recovery in elite Olympic weightlifters, taking into account each athlete's individual response pattern. The entire German male Olympic weightlifting national team participated in the study (n = 7), ensuring collection of data from elite athletes only...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538305/comparing-performance-during-morning-vs-afternoon-training-sessions-in-intercollegiate-basketball-players
#11
Aaron D Heishman, Michael A Curtis, Ethan N Saliba, Robert J Hornett, Steven K Malin, Arthur L Weltman
Heishman, AD, Curtis, MA, Saliba, EN, Hornett, RJ, Malin, SK, and Weltman, AL. Comparing performance during morning vs. afternoon training sessions in intercollegiate basketball players. J Strength Cond Res 31(6): 1557-1562, 2017-Time of day is a key factor that influences the optimization of athletic performance. Intercollegiate coaches oftentimes hold early morning strength training sessions for a variety of factors including convenience. However, few studies have specifically investigated the effect of early morning vs...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538298/quantifying-the-high-speed-running-and-sprinting-profiles-of-elite-female-soccer-players-during-competitive-matches-using-an-optical-player-tracking-system
#12
Jocelyn K Mara, Kevin G Thompson, Kate L Pumpa, Stuart Morgan
Mara, JK, Thompson, KG, Pumpa, KL, and Morgan, S. Quantifying the high-speed running and sprinting profiles of elite female soccer players during competitive matches using an optical player tracking system. J Strength Cond Res 31(6): 1500-1508, 2017-The aim of this study was to determine the high-speed running and sprinting profiles of elite female soccer players during competitive matches using a new Optical Player Tracking system. Eight stationary video cameras were positioned at vantage points surrounding the soccer field so that when each camera view was combined, the entire field could be viewed simultaneously...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538296/exercise-intensity-and-technical-demands-of-small-sided-soccer-games-for-under-12-and-under-14-players-effect-of-area-per-player
#13
Domenico Martone, Moreno Giacobbe, Adriano Capobianco, Esther Imperlini, Annamaria Mancini, Mario Capasso, Pasqualina Buono, Stefania Orrù
Martone, D, Giacobbe, M, Capobianco, A, Imperlini, E, Mancini, A, Capasso, M, Buono, P, and Orrù, S. Exercise intensity and technical demands of small-sided soccer games for under-12 and under-14 players: Effect of area per player. J Strength Cond Res 31(6): 1486-1492, 2017-The aim of this study was to evaluate the effects of 6 different areas per player (AP) on exercise intensity (EI) measured during small-sided games (SSGs) and expressed as percentage of maximal heart rate (%MHR) and technical actions (TAs) involvement with the ball, crosses, headers, tackles, shots on goal, dribbling, passing, and target passing-in U-12 and U-14 soccer players during SSGs...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538167/understanding-the-bioavailability-and-sequestration-of-different-metal-cations-in-the-presence-of-a-biodegradable-chelant-mgda-in-biological-fluids-and-natural-waters
#14
Clemente Bretti, Rosalia Maria Cigala, Concetta De Stefano, Gabriele Lando, Silvio Sammartano
Thermodynamic information about the metal-ligand interaction between Fe(3+), Zn(2+), Cu(2+) and Sn(2+), and a biodegradable ligand as MGDA is reported. The speciation scheme was obtained by means of potentiometric measurements and isothermal titration calorimetry (to determine enthalpy changes) in NaCl medium. The formation of the ML and MLOH species was evidenced for all the metal cations, and for Fe(3+) also the ML2 and ML(OH)2 were found. The relative stability, for the ML species, follows the order: Sn(2+) > Fe(3+) > Cu(2+) > Zn(2+)...
May 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28534670/a-long-preoperative-duration-of-symptoms-is-associated-with-worse-functional-outcomes-after-1-stage-arthroscopic-treatment-of-rotator-cuff-tears-with-shoulder-stiffness
#15
Yuzhou Chen, Shiyi Chen, Yang Qiao, Yunshen Ge, Hong Li, Jiwu Chen, Yinghui Hua, Yunxia Li
BACKGROUND: Rotator cuff tears with shoulder stiffness remain a difficult issue. Despite the reported satisfactory results of 1-stage surgery, little information is available regarding the factors that affect clinical outcomes. Purpose/Hypothesis: To evaluate the 1-stage arthroscopic treatment of rotator cuff tears with shoulder stiffness and to present the influence of duration of symptoms (DOS) on postoperative functional outcomes. The hypothesis was that a long preoperative DOS is related to worse functional outcomes...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28534274/exploring-the-validity-of-proposed-transgenic-animal-models-of-attention-deficit-hyperactivity-disorder-adhd
#16
REVIEW
June Bryan de la Peña, Irene Joy Dela Peña, Raly James Custodio, Chrislean Jun Botanas, Hee Jin Kim, Jae Hoon Cheong
Attention-deficit/hyperactivity disorder (ADHD) is a common, behavioral, and heterogeneous neurodevelopmental condition characterized by hyperactivity, impulsivity, and inattention. Symptoms of this disorder are managed by treatment with methylphenidate, amphetamine, and/or atomoxetine. The cause of ADHD is unknown, but substantial evidence indicates that this disorder has a significant genetic component. Transgenic animals have become an essential tool in uncovering the genetic factors underlying ADHD. Although they cannot accurately reflect the human condition, they can provide insights into the disorder that cannot be obtained from human studies due to various limitations...
May 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28532621/an-experimental-study-on-thermo-catalytic-pyrolysis-of-plastic-waste-using-a-continuous-pyrolyser
#17
Anthony R Auxilio, Wei-Lit Choo, Isha Kohli, Srikanth Chakravartula Srivatsa, Sankar Bhattacharya
A bench scale, two-stage, thermo-catalytic reactor equipped with a continuous feeding system was used to pyrolyse pure and waste plastics. Experiments using five zeolitic and clay-based catalysts of different forms (pellet and powders) and different plastic feedstocks - virgin HDPE, HDPE w1aste and mixed plastic waste (MPW) were compared to the control experiments - pyrolysis without catalyst. Results indicated that the two pelletized catalysts were the most promising for the conditions employed. Of these two, one with higher acidity and surface area was highly selective for the gasoline fraction (C5-C11) giving 80% from the total medium distillate conversion using virgin HDPE as feedstock...
May 19, 2017: Waste Management
https://www.readbyqxmd.com/read/28532279/the-effect-of-cold-ambient-temperatures-on-climbing-specific-finger-flexor-performance
#18
Kevin Phillips, Byungjoo Noh, Matthew Gage, Tejin Yoon
Different ambient temperatures are known to affect muscular performance based on the type of contraction. The effect of cold (10°C) and thermoneutral (TN) (24°C) ambient temperatures on finger flexor performance was examined in 12 rock climbers. After 30 min of seated rest in the designated temperature condition, participants completed maximal voluntary contractions (MVC) on a climbing-specific finger flexor assessment device equipped with a crimp grip hold. Participants then completed an intermittent fatiguing task until failure...
May 22, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28532248/effects-of-drop-sets-with-resistance-training-on-increases-in-muscle-csa-strength-and-endurance-a-pilot-study
#19
Hayao Ozaki, Atsushi Kubota, Toshiharu Natsume, Jeremy P Loenneke, Takashi Abe, Shuichi Machida, Hisashi Naito
To investigate the effects of a single high-load (80% of one repetition maximum [1RM]) set with additional drop sets descending to a low-load (30% 1RM) without recovery intervals on muscle strength, endurance, and size in untrained young men. Nine untrained young men performed dumbbell curls to concentric failure 2-3 days per week for 8 weeks. Each arm was randomly assigned to one of the following three conditions: 3 sets of high-load (HL, 80% 1RM) resistance exercise, 3 sets of low-load [LL, 30% 1RM] resistance exercise, and a single high-load (SDS) set with additional drop sets descending to a low-load...
May 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28532098/mechanical-behavior-of-yttria-stabilized-tetragonal-zirconia-polycrystalline-ceramic-after-different-zirconia-surface-treatments
#20
Joao Luiz Pozzobon, Gabriel Kalil Rocha Pereira, Vinicius Felipe Wandscher, Lucio Strazzabosco Dorneles, Luiz Felipe Valandro
This study investigated the effects of different zirconia surface conditioning methods on the biaxial flexure strength, surface characteristics and fractographic analysis of a Y-TZP ceramic. Disc-shaped specimens were manufactured according to ISO 6872-2008 for biaxial flexure strength testing, and then randomly assigned into seven groups (n=30). Control (CTRL): without treatment; Tribochemical silica coating (TBS): specimens were sandblasted with silica-coated aluminum oxide particles (CoJet-Sand) for 10s; Silica nanofilm (SNF): specimens were silica coated with a 5nm SiO2 nanofilm; and four protocols of low-fusing porcelain glaze (GLZ): etching with 10% hydrofluoric acid gel (HF) for 1min (GLZ1), 5min (GLZ5), 10min (GLZ10) and 15min (GLZ15)...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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