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https://www.readbyqxmd.com/read/28539858/relationship-between-proxies-for-type-ii-fiber-type-and-resting-blood-pressure-in-division-i-american-football-athletes
#1
Christopher A DiCesare, James R Adams, Randal P Claytor, Rose M Ward, Ronald H Cox
OBJECTIVE: The risk for cardiovascular disease is well-documented. Perhaps surprisingly, specific athletic populations, including American football players, exhibit increased risk for cardiovascular disease as presented by elevated blood pressure. There is evidence suggesting a link between muscle fiber type distribution and resting blood pressure. Acknowledging this association, it becomes important to clarify an individual's risk for developing cardiovascular disease later in adulthood...
April 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28538293/comparison-of-strength-levels-between-players-from-within-the-same-club-who-were-selected-vs-not-selected-to-play-in-the-grand-final-of-the-national-rugby-league-competition
#2
Daniel G Baker
Baker, DG. Comparison of strength levels between players from within the same club that were selected vs. not selected to play in the grand final of the National Rugby League competition. J Strength Cond Res 31(6): 1461-1467, 2017-A number of studies have established that higher levels of strength and power, tested at the end of the preseason, distinguish between playing level in professional rugby league. How this may impact the ability of players to get selected for final payoff games some 30 weeks later has not been fully investigated...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537195/caffeine-ingestion-acutely-enhances-muscular-strength-and-power-but-not-muscular-endurance-in-resistance-trained-men
#3
Jozo Grgic, Pavle Mikulic
The goal of this randomized, double-blind, cross-over study was to assess the acute effects of caffeine ingestion on muscular strength and power, muscular endurance, rate of perceived exertion (RPE), and pain perception (PP) in resistance-trained men. Seventeen volunteers (mean ± SD: age = 26 ± 6 years, stature = 182 ± 9 cm, body mass = 84 ± 9 kg, resistance training experience = 7 ± 3 years) consumed placebo or 6 mg kg(-1) of anhydrous caffeine 1 h before testing...
May 24, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28531912/from-bench-to-market-preparing-human-pluripotent-stem-cells-derived-cardiomyocytes-for-various-applications
#4
REVIEW
Sung-Hwan Moon, Daekyeong Bae, Taek-Hee Jung, Eun-Bin Chung, Young-Hoon Jeong, Soon-Jung Park, Hyung-Min Chung
Human cardiomyocytes (CMs) cease to proliferate and remain terminally differentiated thereafter, when humans reach the mid-20s. Thus, any damages sustained by myocardium tissue are irreversible, and they require medical interventions to regain functionality. To date, new surgical procedures and drugs have been developed, albeit with limited success, to treat various heart diseases including myocardial infarction. Hence, there is a pressing need to develop more effective treatment methods to address the increasing mortality rate of the heart diseases...
May 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28530448/carbohydrates-alone-or-mixing-with-beef-or-whey-protein-promote-similar-training-outcomes-in-resistance-training-males-a-double-blind-randomized-controlled-clinical-trial
#5
Fernando Naclerio, Marco Seijo-Bujia, Eneko Larumbe-Zabala, Conrad P Earnest
Beef powder is a new high-quality protein source scarcely researched relative to exercise performance. The present study examined the impact of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on strength performance (1RM), body composition (via plethysmography), limb circumferences and muscular thickness (via ultrasonography), following an 8-week resistance-training program. After being randomly assigned to one of the following groups: Beef, Whey, or Carbohydrate, twenty four recreationally physically active males (n=8 per treatment) ingested 20 g of supplement, mixed with orange juice, once a day (immediately after workout or before breakfast)...
May 22, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28515835/the-effect-of-acute-hyperglycemia-on-muscular-strength-power-and-endurance
#6
Franklin Lime-Ma, Joshua A Cotter, Evan E Schick
The purpose of this study was to elucidate the impact of acute hyperglycemia on skeletal muscle strength, power, and endurance. Ten male collegiate athletes (age 21.5 ± 1.5 years, height 186 ± 2.03 cm, body mass 108.8 ± 7.6 kg) participated in 2 testing sessions, separated by 7 days and randomized for either high glucose (HG) or control (C) treatment conditions. HG consumed a high glucose drink (2 g glucose/kg body weight) while controls consumed an isocaloric nutrition bar (40% protein, 30% fat, and 30% carbohydrate)...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28500415/mind-muscle-connection-training-principle-influence-of-muscle-strength-and-training-experience-during-a-pushing-movement
#7
Joaquin Calatayud, Jonas Vinstrup, Markus D Jakobsen, Emil Sundstrup, Juan Carlos Colado, Lars L Andersen
PURPOSE: To investigate the effect of different attentional focus conditions on muscle activity during the push-up exercise and to assess the possible influence of muscle strength and training experience. METHODS: Eighteen resistance-trained men performed 1RM bench press testing and were familiarized with the procedure during the first session. In the second session, three different conditions were randomly performed: regular push-up and push-up focusing on using the pectoralis major and triceps brachii muscles, respectively...
May 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28497285/comparison-of-periodized-and-non-periodized-resistance-training-on-maximal-strength-a-meta-analysis
#8
REVIEW
Tyler D Williams, Danilo V Tolusso, Michael V Fedewa, Michael R Esco
BACKGROUND: Periodization is a logical method of organizing training into sequential phases and cyclical time periods in order to increase the potential for achieving specific performance goals while minimizing the potential for overtraining. Periodized resistance training plans are proposed to be superior to non-periodized training plans for enhancing maximal strength. OBJECTIVE: The primary aim of this study was to examine the previous literature comparing periodized resistance training plans to non-periodized resistance training plans and determine a quantitative estimate of effect on maximal strength...
May 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28488832/road-to-the-olympics-physical-fitness-of-medalists-of-the-canoe-sprint-junior-european-and-world-championship-events-over-the-past-20-years
#9
Viktor Bielik, Leonard Lendvorský, Lukáš Lengvarský, Peter Lopata, Róbert Petriska, Jana Pelikánová
BACKGROUND: In this article we aimed to find out whether there is a difference in physiological, anthropometric and power variables between medalists in junior international Championship events (MJCH) and the remaining members of the national team (NT) in flat water canoe sprint. METHODS: Sixty male junior kayakers from Slovak NT were tested annually between years 1995 and 2016. Sixteen of them won at least one medal (gold, silver or bronze) at junior international Championship...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28486339/acute-effect-of-upper-and-lower-body-postactivation-exercises-on-shot-put-performance
#10
Eleni I Kontoy, Fani Berberidou, Theophilos C Pilianidis, Nikolaos I Mantzouranis, Spyridon K Methenitis
The purpose of the present study was to investigate the effect of different types of upper and lower' extremities exercises on acute increase of shot put performance, in moderate experienced throwers. Eight (n=8) males and nine (n=9) female throwers participated in the present study. Their bench press and squat maximum strength were measured while their shot put performance from power position was evaluated before and after four interventions: [1] plyometric push-ups (Plyo), [2] 6s isometric push-ups (Iso), [3] 3 countermovement jumps (CMJ) and [4] 10 reps...
May 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28486338/a-comparison-of-load-velocity-and-load-power-relationships-between-well-trained-young-and-middle-aged-males-during-three-popular-resistance-exercises
#11
John F T Fernandes, Kevin L Lamb, Craig Twist
This study examined the load-velocity and load-power relationships among 20 young (age 21.0 ± 1.6 y) and 20 middle-aged (age 42.6 ± 6.7 y) resistance trained males. Participants performed three repetitions of bench press, squat and bent-over-row across a range of loads corresponding to 20 to 80% of one repetition maximum (1RM). Analysis revealed effects (P < 0.05) of group and load x group on barbell velocity for all three exercises, and interaction effects on power for squat and bent-over-row (P < 0...
May 5, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28485383/validity-of-one-repetition-maximum-predictive-equations-in-men-with-spinal-cord-injury
#12
F Ribeiro Neto, P Guanais, E Dornelas, A C B Coutinho, R R G Costa
STUDY DESIGN: Cross-sectional study. OBJECTIVES: The study aimed (a) to test the cross-validation of current one-repetition maximum (1RM) predictive equations in men with spinal cord injury (SCI); (b) to compare the current 1RM predictive equations to a newly developed equation based on the 4- to 12-repetition maximum test (4-12RM). SETTING: SARAH Rehabilitation Hospital Network, Brasilia, Brazil. METHODS: Forty-five men aged 28...
May 9, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28475551/evaluation-of-muscle-mechanical-capacities-through-the-two-load-method-optimization-of-the-load-selection
#13
Alejandro Pérez-Castilla, Slobodan Jaric, Belén Feriche, Paulino Padial, Amador García-Ramos
Recent research has revealed that the force-velocity relationship obtained from the 'two-load method' (i.e., functional movements tested against just 2 external loads) could be a feasible method for the selective assessment of muscle force, velocity, and power-producing capacities. The study investigated the reliability and concurrent validity of the outcomes of the two-load method observed from (1) farther vs. closer data points (20-70%1RM, 30-60%1RM, and 40-50%1RM), and (2) force-biased (50-70%1RM) vs. velocity-biased (20-40%1RM) data points...
April 25, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28469742/muscle-force-velocity-relationships-observed-in-four-different-functional-tests
#14
Milena Z Zivkovic, Sasa Djuric, Ivan Cuk, Dejan Suzovic, Slobodan Jaric
The aims of the present study were to investigate the shape and strength of the force-velocity relationships observed in different functional movement tests and explore the parameters depicting force, velocity and power producing capacities of the tested muscles. Twelve subjects were tested on maximum performance in vertical jumps, cycling, bench press throws, and bench pulls performed against different loads. Thereafter, both the averaged and maximum force and velocity variables recorded from individual trials were used for force-velocity relationship modeling...
February 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28467940/exercise-metabolism
#15
(no author information available yet)
As a preview of the upcoming Cell Symposium on Exercise Metabolism in Gothenburg, Sweden, May 21-23 (http://cell-symposia.com/exercisemetabolism-2017/), several of our speakers and other Cell Press exercise enthusiasts share a wide range of experiences from bench pressing goals to bench research insights.
May 2, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28459290/injury-patterns-physiological-profile-and-performance-in-university-rugby-union
#16
Shane Ball, Mark Halaki, Tristan Sharp, Rhonda Orr
OBJECTIVES: Rugby union is a physically demanding collision sport with high injury rates. There is a common perception that higher training loads result in greater injury risk in field-based sports. This study aims to determine injury, anthropometric and physical performance characteristics in junior rugby union players and investigate the interaction between training load and injury across a competitive season. DESIGN: Prospective cohort study. METHODS: Fifty-one players (age 19...
May 1, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28445110/normobaric-hypoxia-increases-the-growth-hormone-response-to-maximal-resistance-exercise-in-trained-men
#17
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/28443250/pectoralis-major-tear-an-unusual-and-rare-presentation
#18
Vikram V Kadu, K A Saindane, Ninad Godghate, Neha Godghate
INTRODUCTION: The pectoralis major is a very powerful muscle that forms the chest prominence and. It moves the shoulder forward and across your chest. It is best known as the muscle that you develop with the bench press exercise in gymnasium. The pectoralis major attaches to the humerus bone and is divided into two parts. The upper part is known as the "clavicular head" and the lower part the "sternal head," based on their origins from the clavicle and sternal bones, respectively. Ruptures of the pectoralis major muscle are becoming more common due to the increase in power sports weight training...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28415066/effect-of-barbell-weight-on-the-structure-of-the-flat-bench-press
#19
Henryk Król, Artur Gołaś
Król, H and Gołaś, A. Effect of barbell weight on the structure of the flat bench press. J Strength Cond Res 31(5): 1321-1337, 2017-In this study, we have used the multimodular measuring system SMART. The system consisted of 6 infrared cameras and a wireless module to measure muscle bioelectric activity. In addition, the path of the barbell was measured with a special device called the pantograph. Our study concerns the change in the structure of the flat bench press when the weight of the barbell is increased...
May 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28409508/performance-of-muscle-strength-and-fatigue-tolerance-in-young-trained-women-supplemented-with-caffeine
#20
Carlos A Fett, Natalia Magalhães Aquino, Jairo Schantz, Camila F Brandão, Joás D de Araújo Cavalcanti, Waleria C Rezende Fett
BACKGROUND: Verify the effect of caffeine supplementation on the muscular strength and fatigue tolerance of young trained women. METHODS: Eight women of 25±5 years old, who had undergone a minimum of 12 months of continuous resisted training, body mass index 20-23 kg/m2 were submitted to four tests: one repetition maximum (1- RM, kg) to pull down (PD), hack squat (HS), bench press (BP), and; knee extension exhaustion (drop-set, 100/80/60 kg, repetitions) (DS). They perform the tests in four consecutive blocks one-week apart crossover system: basal without caffeine (B); first caffeine (C1); placebo with starch supplementation (P); second caffeine (C2)...
April 13, 2017: Journal of Sports Medicine and Physical Fitness
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