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https://www.readbyqxmd.com/read/28640772/the-effect-of-a-carbohydrate-mouth-rinse-on-upper-body-muscular-strength-and-endurance
#1
James E Dunkin, Shaun M Phillips
Dunkin, JE and Phillips, SM. The effect of a carbohydrate mouth rinse on upper-body muscular strength and endurance. J Strength Cond Res 31(7): 1948-1953, 2017-Carbohydrate (CHO) mouth rinsing rapidly increases corticomotor output and maximal muscle force production, which could enhance muscular strength and endurance during resistance exercise. However, previous research has found no effect of CHO rinsing on muscular strength or endurance. The current study altered the CHO rinse composition and frequency and the muscular endurance test to further investigate the effects of a CHO mouth rinse on upper-body muscular strength and endurance...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28632056/reliability-of-power-and-velocity-variables-collected-during-the-traditional-and-ballistic-bench-press-exercise
#2
Amador García-Ramos, G Gregory Haff, Paulino Padial, Belén Feriche
This study aimed to examine the reliability of different power and velocity variables during the Smith machine bench press (BP) and bench press throw (BPT) exercises. Twenty-two healthy men conducted four testing sessions after a preliminary BP one-repetition maximum (1RM) test. In a counterbalanced order, participants performed two sessions of BP in one week and two sessions of BPT in another week. Mean propulsive power, peak power, mean propulsive velocity, and peak velocity at each tenth percentile (20-70% of 1RM) were recorded by a linear transducer...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28628245/effects-of-resistance-training-using-known-vs-unknown-loads-on-eccentric-phase-adaptations-and-concentric-velocity
#3
Jose Luis Hernández-Davó, Rafael Sabido, David G Behm, Anthony J Blazevich
The aims of this study were to compare both eccentric- and concentric-phase adaptations in highly-trained handball players to 4 weeks of twice-weekly rebound bench press throw training with varying loads (30%, 50% and 70% of 1-repetition maximum [1-RM]) using either known (KL) or unknown (UL) loads, and to examine the relationship between changes in eccentric- and concentric-phase performance. Twenty-eight junior team-handball players were divided into two experimental groups (KL or UL) and a control group...
June 19, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28605252/a-simple-method-for-assessing-upper-limb-force-velocity-profile-in-bench-press
#4
Abderrahmane Rahmani, Pierre Samozino, Jean-Benoit Morin, Baptiste Morel
PURPOSE: 1) to analyze the reliability and validity of a field computation method based on easy-to-measure data to assess the mean force (F̄) and velocity (v̄) produced during a ballistic bench press movement; and 2) to verify that the force-velocity profile (F-v) obtained with multiple loaded trials is accurately described. METHODS: Twelve participants performed ballistic bench press against various lifted mass from 30 to 70% of their body mass. For each trial, F̄ and v̄ were determined from an accelerometer (sampling rate: 500Hz; reference method) and a simple computation method based on upper limb mass, barbell flight height and push-off distance...
June 12, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28604135/adding-soy-protein-to-milk-enhances-the-effect-of-resistance-training-on-muscle-strength-in-postmenopausal-women
#5
Fábio L Orsatti, Nailza Maestá, Erick P de Oliveira, Jorge Nahas Neto, Roberto C Burini, Paulo R P Nunes, Aletéia P Souza, Fernanda M Martins, Eliana P Nahas
Resistance training (RT) and high-quality protein ingestion improves muscle mass (MM) and strength (MS). However, no study has evaluated the effect of ingesting milk plus soy protein (SOY) on MM and MS in postmenopausal women (PW). Thus, the aim of this study was to evaluate the effects of adding SOY to milk on MM and MS after 16 weeks of RT. Thirty-two PW were randomized and allocated into two groups: placebo and RT (PL+RT, n = 16) and SOY and RT (SOY+RT, n = 16). The SOY+RT received 25 g of SOY while the PL+RT received 25 g of maltodextrin (placebo)...
June 12, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28595855/dissociated-time-course-between-peak-torque-and-total-work-recovery-following-bench-press-training-in-resistance-trained-men
#6
Diogo V Ferreira, Paulo Gentil, João B Ferreira-Junior, Saulo R S Soares, Lee E Brown, Martim Bottaro
OBJECTIVE: To evaluate the time course of peak torque and total work recovery after a resistance training session involving the bench press exercise. DESIGN: Repeated measures with a within subject design. METHODS: Twenty-six resistance-trained men (age: 23.7±3.7years; height: 176.0±5.7cm; mass: 79.65±7.61kg) performed one session involving eight sets of the bench press exercise performed to momentary muscle failure with 2-min rest between sets...
June 7, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28595236/comparison-of-serum-cytokine-levels-in-obese-and-lean-men-effects-of-nonlinear-periodized-resistance-training-and-obesity
#7
Mahmoud Nikseresht
This study examined the capacity of nonlinear resistance training (NRT) to alter some cytokines and markers of insulin resistance in men who are obese. An additional aim was to compare these variables between obese and lean men. Age- and fitness-matched obese men were randomly allocated to NRT (n=12) and control (CON, n=10) groups. An age- and fitness-matched control group of lean men (n=11) were also recruited for baseline comparison. The NRT (12 weeks, 3 d/wk, 5-11 exercises) performed at different intensities (40-95% of IRM) with flexible periodization...
June 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28581367/carbohydrate-mouth-rinse-improves-morning-high-intensity-exercise-performance
#8
Neil D Clarke, Scott Hammond, Evangelos Kornilios, Peter D Mundy
Oral carbohydrate (CHO) rinsing has been demonstrated to provide beneficial effects on exercise performance of durations of up to one hour. The aim of the present study was to investigate the effects of CHO mouth rinsing on morning high-intensity exercise performance. Following institutional ethical approval and familiarisation, 12 healthy males (mean ± SD age: 23 ± 3 years, height: 175.5 ± 7.4 cm, body mass: 75.4 ± 7.5 kg) participated in this study. Countermovement jump (CMJ) height, isometric mid-thigh pull peak force, 10 m sprint time and bench press and back squat repetitions to failure were assessed following CHO and placebo (PLA) rinsing or a control condition (CON)...
June 5, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28557855/mean-velocity-vs-mean-propulsive-velocity-vs-peak-velocity-which-variable-determines-bench-press-relative-load-with-higher-reliability
#9
Amador García-Ramos, Francisco Luis Pestaña-Melero, Alejandro Pérez-Castilla, Francisco Javier Rojas, Guy Gregory Haff
This study aimed to compare between three velocity variables (mean velocity [MV], mean propulsive velocity [MPV], and peak velocity [PV]): (I) the linearity of the load-velocity relationship, (II) the accuracy of general regression equations to predict relative load (%1RM), and (III) the between-session reliability of the velocity attained at each percentage of the one-repetition maximum (%1RM). The full load-velocity relationship of 30 men were evaluated by means of linear regression models in the concentric-only and eccentric-concentric bench press throw (BPT) variants performed with a Smith Machine...
May 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28539858/relationship-between-proxies-for-type-ii-fiber-type-and-resting-blood-pressure-in-division-i-american-football-athletes
#10
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
#11
Daniel G Baker
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. The purpose of this study was to compare measures of upper- and lower-body strength between players from the same professional club, designated as those 17 players who attained selection and played in the team that won the Grand Final of the National Rugby League competition (GF) and those who did not attain selection (NSGF)...
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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