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https://www.readbyqxmd.com/read/28195977/fat-grip-resistance-training-improves-driving-performance-in-division-i-male-golfers
#1
Patrick M Cummings, Hunter S Waldman, Ben M Krings, JohnEric W Smith, Matthew J McAllister
Fat Grip (FG) training is implemented into strength and conditioning programs with the overall goal of increasing grip strength. Previous research assessing the effect of training with increased grip diameters compared to standard Olympic bar diameters has mainly been in acute settings. Therefore, the purpose of this study was to examine to effects FG training compared to normal diameter grip (CON) training during an eight week periodized resistance training (RT) program in Division I male golfers. Subjects (n = 10) were randomly assigned into two groups: the FG group (n = 5, scoring average: 75...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28194116/dynamic-and-static-exercises-differentially-affect-plasma-cytokine-content-in-elite-endurance-and-strength-trained-athletes-and-untrained-volunteers
#2
Leonid V Kapilevich, Anna N Zakharova, Anastasia V Kabachkova, Tatyana A Kironenko, Sergei N Orlov
Extensive exercise increases the plasma content of IL-6, IL-8, IL-15, leukemia inhibitory factor (LIF), and several other cytokines via their augmented transcription in skeletal muscle cells. However, the relative impact of aerobic and resistant training interventions on cytokine production remains poorly defined. In this study, we compared effects of dynamic and static load on cytokine plasma content in elite strength- and endurance-trained athletes vs. healthy untrained volunteers. The plasma cytokine content was measured before, immediately after, and 30 min post-exercise using enzyme-linked immunosorbent assay...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28192673/the-benefit-of-a-supplement-with-the-antioxidant-melatonin-on-redox-status-and-muscle-damage-in-resistance-trained-athletes
#3
Roberto C Leonardo-Mendonça, Javier Ocaña-Wilhelmi, Tomás de Haro, Carlos de Teresa-Galván, Eduardo Guerra-Hernández, Iryna Rusanova, Marisol Fernández-Ortiz, Ramy Ka Sayed, Germaine Escames, Darío Acuña-Castroviejo
Previous data showed that the administration of high doses of melatonin improved the circadian system in athletes. Here, we investigated in the same experimental paradigm whether the antioxidant properties of melatonin has also beneficial effects against exercise-induced oxidative stress and muscle damage in athletes. Twenty-four athletes were treated with 100 mg.day-1 of melatonin or placebo 30 min before bedtime during four weeks in a randomized double-blind scheme. Exercise intensity was higher during the study that before starting it...
February 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28177706/the-effects-of-acute-branched-chain-amino-acid-supplementation-on-recovery-from-a-single-bout-of-hypertrophy-exercise-in-resistance-trained-athletes
#4
Mark Waldron, Kieran Whelan, Owen Jeffries, Dean Burt, Louis Howe, Stephen David Patterson
This study investigated the effects of acute branched-chain amino acid (BCAA) supplementation on recovery from exercise-induced muscle damage, among experienced resistance-trained athletes. In a double-blind matched-pairs design, 16 resistance-trained participants, routinely performing hypertrophy training, were randomly assigned to a BCAA (n = 8) or placebo (n = 8) group. The BCAAs were administered at a dosage of 0.087 g/kg body mass, with a 2:1:1 ratio of leucine, isoleucine and valine. The participants performed 6 sets of 10 full-squats at 70 % 1RM to induce muscle damage...
January 27, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28173788/real-time-optimized-biofeedback-utilizing-sport-techniques-robust-a-study-protocol-for-a-randomized-controlled-trial
#5
Jeffrey B Taylor, Anh-Dung Nguyen, Mark V Paterno, Bin Huang, Kevin R Ford
BACKGROUND: Anterior cruciate ligament (ACL) injuries in female athletes lead to a variety of short- and long-term physical, financial, and psychosocial ramifications. While dedicated injury prevention training programs have shown promise, ACL injury rates remain high as implementation has not become widespread. Conventional prevention programs use a combination of resistance, plyometric, balance and agility training to improve high-risk biomechanics and reduce the risk of injury. While many of these programs focus on reducing knee abduction load and posture during dynamic activity, targeting hip extensor strength and utilization may be more efficacious, as it is theorized to be an underlying mechanism of injury in adolescent female athletes...
February 7, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28153943/the-cardiovascular-system-after-exercise
#6
Steven A Romero, Christopher Todd Minson, John R Halliwill
Recovery from exercise refers to the time period between the end of a bout of exercise and the subsequent return to a resting or recovered state. It also refers to specific physiological processes or states, occurring after exercise, which are distinct from the physiology of either the exercising or the resting states. In this context, recovery of the cardiovascular system after exercise occurs across a period of minutes to hours, during which many characteristics of the system, even how it is controlled, are changing over time...
February 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28151781/acute-effects-of-eccentric-overload-on-concentric-front-squat-performance
#7
Cameron N Munger, David C Archer, Whitney D Leyva, Megan A Wong, Jared W Coburn, Pablo B Costa, Lee E Brown
Eccentric overload is used to enhance performance. The purpose of this study was to investigate the acute effects of eccentric overload on concentric front squat performance. Twenty resistance-trained males (age=23.80±1.82yrs, ht=176.95±5.21cm, mass=83.49±10.43kg, 1 Repetition Maximum [1RM] front squat=131.02±21.32kg) volunteered. A dynamic warm-up and warm-up sets of front squat were performed. Eccentric hooks were added to the barbell. They descended for 3 seconds, until eccentric hooks released, and performed the concentric phase as fast as possible...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28150870/seated-limits-of-stability-of-athletes-with-disabilities-with-regard-to-competitive-levels-and-sport-classification
#8
Paula B R Santos, Patrícia S Vigário, Míriam R M Mainenti, Arthur S Ferreira, Thiago Lemos
We aimed to evaluate the influence of wheelchair rugby (WR) classification and competitive level on the seated limits of stability of athletes with disabilities. Twenty-eight athletes were recruited from international and national level WR teams. Athletes were distributed into three groups per their classification: low-point (0.5-1.5-point); mid-point (2.0-2.5-point); and high-point (3.0-3.5-point). Athletes were asked to sit on a force platform placed upon a wooden block and to lean the body as far as possible in eight pre-defined directions...
February 2, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28149428/analysis-of-tests-evaluating-sport-climbers-strength-and-isometric-endurance
#9
Mariusz Ozimek, Robert Staszkiewicz, Robert Rokowski, Arkadiusz Stanula
The present study was designed to determine which types of specific tests provide an effective evaluation of strength and endurance in highly trained competitive sport climbers. The research process consisted of three basic components: the measurement of selected somatic characteristics of the climbers, the assessment of their physical conditioning, and a search for correlations between the anthropometric and "conditioning" variables on the one hand, and climber's performance on the other. The sample of subjects consisted of 14 experienced volunteer climbers capable of handling 7a- 8a+/b on-sight rock climbing grades...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28135219/neuromuscular-training-improves-movement-competency-and-physical-performance-measures-in-11-13-year-old-female-netball-athletes
#10
Amanda Hopper, Erin E Haff, Oliver Barley, Christopher Joyce, Rhodri S Lloyd, G Gregory Haff
The purpose of this study was to examine the effects of a neuromuscular training program on movement competency and measures of physical performance in youth female netball players. It was hypothesized that significant improvements would be found in movement competency and physical performance measures following the intervention. Twenty-three junior female netball players (age, 12.17 ± 0.94 yrs; height, 1.63 ± 0.08 m; weight, 51.81 ± 8.45 kg) completed a test battery before and after a six-week training intervention...
January 20, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28129278/loading-intensity-prediction-by-velocity-and-the-omni-res-0-10-scale-in-bench-press
#11
Fernando Naclerio, Eneko Larumbe-Zabala
Naclerio, F and Larumbe-Zabala, E. Loading intensity prediction by velocity and the OMNI-RES 0-10 scale in bench press. J Strength Cond Res 32(1): 323-329, 2017-This study examined the possibility of using movement velocity and the perceived exertion as indicators of relative load in the bench press (BP) exercise. A total of 308 young, healthy, resistance trained athletes (242 men and 66 women) performed a progressive strength test up to the one repetition maximum for the individual determination of the full load-velocity and load-exertion relationships...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28129275/comparison-of-powerlifting-performance-in-trained-men-using-traditional-and-flexible-daily-undulating-periodization
#12
Ryan J Colquhoun, Christopher M Gai, Jeoffrey Walters, Andrew R Brannon, Marcus W Kilpatrick, Dominic P DʼAgostino, William I Campbell
Colquhoun, RJ, Gai, CM, Walters, J, Brannon, AR, Kilpatrick, MW, D'Agostino, DP, and Campbell, WI. Comparison of powerlifting performance in trained men using traditional and flexible daily undulating periodization. J Strength Cond Res 31(2): 283-291, 2017-Daily undulating periodization (DUP) is a growing trend, both in practice and in the scientific literature. A new form of DUP, flexible daily undulating periodization (FDUP), allows for athletes to have some autonomy by choosing the order of their training...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28103813/fat-mass-and-obesity-associated-fto-gene-influences-skeletal-muscle-phenotypes-in-non-resistance-trained-males-and-elite-rugby-playing-position
#13
S M Heffernan, G K Stebbings, L P Kilduff, R M Erskine, S H Day, C I Morse, J S McPhee, C J Cook, B Vance, W J Ribbans, S M Raleigh, C Roberts, M A Bennett, G Wang, M Collins, Y P Pitsiladis, A G Williams
BACKGROUND: FTO gene variants have been associated with obesity phenotypes in sedentary and obese populations, but rarely with skeletal muscle and elite athlete phenotypes. METHODS: In 1089 participants, comprising 530 elite rugby athletes and 559 non-athletes, DNA was collected and genotyped for the FTO rs9939609 variant using real-time PCR. In a subgroup of non-resistance trained individuals (NT; n = 120), we also assessed structural and functional skeletal muscle phenotypes using dual energy x-ray absorptiometry, ultrasound and isokinetic dynamometry...
January 19, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28067740/update-on-management-of-type-1-diabetes-and-type-2-diabetes-in-athletes
#14
Jane E Yardley, Sheri R Colberg
Optimal blood glucose management still remains the biggest challenge in active individuals with diabetes, particularly in insulin users, but some newer strategies have been introduced to maintain blood glucose control. Recent studies emphasize the importance of exercise intensity on glycemic balance. In individuals with type 1 and type 2 diabetes, both resistance and high-intensity intermittent exercise have been shown to confer beneficial physiological adaptations in training studies, while also showing acute glycemic benefits from single sessions...
January 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28051333/optimal-loading-for-maximising-power-during-sled-resisted-sprinting
#15
Matt R Cross, Matt Brughelli, Pierre Samozino, Scott R Brown, Jean-Benoit Morin
Purpose We sought to ascertain whether force-velocity-power relationships could be compiled from a battery of sled-resisted over-ground sprints, and to clarify and compare the optimal loading conditions for maximising power production for different athlete cohorts. Methods Recreational mixed-sport athletes (n=12) and sprinters (n=15) performed multiple trials of maximal sprints unloaded and towing a selection of sled masses (20-120% body-mass). Velocity data were collected by sports radar, and kinetics at peak velocity were quantified using friction coefficients and aerodynamic drag...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28044282/are-prepubertal-children-metabolically-comparable-to-well-trained-adult-endurance-athletes
#16
REVIEW
Sébastien Ratel, Anthony J Blazevich
It is well acknowledged that prepubertal children have smaller body dimensions and a poorer mechanical (movement) efficiency, and thus a lower work capacity than adults. However, the scientific evidence indicates that prepubertal children have a greater net contribution of energy derived from aerobic metabolism in exercising muscle and reduced susceptibility to muscular fatigue, which makes them metabolically comparable to well-trained adult endurance athletes. For example, the relative energy contribution from oxidative and non-oxidative (i...
January 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28028619/effects-of-protein-carbohydrate-supplementation-on-immunity-and-resistance-training-outcomes-a-double-blind-randomized-controlled-clinical-trial
#17
Fernando Naclerio, Eneko Larumbe-Zabala, Nadia Ashrafi, Marco Seijo, Birthe Nielsen, Judith Allgrove, Conrad P Earnest
PURPOSE: To examine the impact of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on resistance training outcomes, body composition, muscle thickness, blood indices of health and salivary human neutrophil peptides (HNP1-3), as reference of humoral immunity followed an 8-week resistance training program in college athletes. METHODS: Twenty-seven recreationally physically active males and females (n = 9 per treatment) were randomly assigned to one of the three groups: hydrolyzed beef protein, whey protein, or non-protein isoenergetic carbohydrate...
December 27, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27996378/fast-early-recovery-after-transabdominal-preperitoneal-repair-in-athletes-with-sportsman-s-groin-a-prospective-clinical-cohort-study
#18
Herwig Pokorny, Christoph Resinger, Ines Fischer, Veit Lorenz, Helge Noske, Stefan Podar, Friedrich Längle, Rudolf Schrittwieser
BACKGROUND: Current literature on chronic groin pain suggests that laparoscopic mesh repair on athletes enables a faster recovery and subsequent return to unrestricted athletic activities. The aim of this study was to evaluate the role of transabdominal preperitoneal (TAPP) mesh repair in athletes resistant to conservative therapy. METHODS: A multidisciplinary approach with tailored physiotherapy. Thirty-nine professional athletes with chronic groin pain were referred to surgery at a single clinic...
December 20, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27990226/the-effects-of-eccentric-velocity-based-training-on-strength-and-power-in-collegiate-athletes
#19
Samantha M Dolezal, Derek L Frese, Tamra L Llewellyn
The purpose of this study was to determine if combining velocity-based training with eccentric focus (VEB) and velocity-based training (VBT) results in power and strength gains. Nineteen men and women collegiate track and field athletes participated in this study. The subjects completed a 12-week intervention with either a VEB program or a VBT program. To determine the effectiveness of each program, the subjects completed four exercise tests before and after the training period: vertical jump, medicine ball put test, 1RM projected bench press and 1RM projected squat...
2016: International Journal of Exercise Science
https://www.readbyqxmd.com/read/27984499/effects-of-pre-exhaustion-on-the-patterns-of-muscular-activity-in-the-flat-bench-press
#20
Gołaś Artur, Maszczyk Adam, Pietraszewski Przemyslaw, Petr Stastny, Tufano James, Zając Adam
Pre-exhaustion (PE) has been applied in resistance training to manipulate the order of performing two resistance exercises, a single joint exercise to momentary exhaustion, followed by a multi-joint movement which includes the same muscle group. This method ensures greater recruitment of muscles or muscle groups in the multi-joint exercise to further increase muscle strength and overcome strength plateaus. The purpose of the present study was to investigate muscle activity by electromyography during high-intensity (95% of 1 repetition maximum) bench press (BP), before and after PE of the pectoralis major (PM), anterior deltoid (AD) and triceps brachii (TB) muscles in order to determine the effects of PE of the prime movers...
November 29, 2016: Journal of Strength and Conditioning Research
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