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https://www.readbyqxmd.com/read/29470365/effect-of-acute-complex-training-on-upper-body-force-and-power-in-collegiate-wrestlers
#1
Margaret T Jones, Jonathan M Oliver, John C Delgado, Justin J Merrigan, Andrew R Jagim, Charles E Robison
To determine if chain bench press (BP) exercise would enhance acute upper body force and power, 13 collegiate male wrestlers (mean ± SD; 20.5 ± 1 years; 174.3 ± 4.2 cm; 76.5 ± 8.3 kg) with ≥ 1 year of strength training participated. Session 1 included body composition ((BodPod) 8.5 ± 2.6 %body fat)), 3 repetition maximum (RM) BP, and familiarization with the plyometric push-up (PPU) on a force plate. Athletes were matched for 3RM BP and randomly assigned to one of two groups: Chain BP or Plate BP. One week after Session 1, athletes performed the experimental protocol which consisted of: Baseline PPU, Chain/Plate BP Set 1 (6 reps @ 60%), 30 sec rest, PPU, 3 min rest, Chain/Plate BP Set 2 (6 reps @60%), 30 sec rest, and PPU...
February 20, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29466268/effect-of-progressive-calisthenic-push-up-training-on-muscle-strength-and-thickness
#2
Christopher J Kotarsky, Bryan K Christensen, Jason S Miller, Kyle J Hackney
Kotarsky, CJ, Christensen, BK, Miller, JS, and Hackney, KJ. Effect of progressive calisthenic push-up training on muscle strength and thickness. J Strength Cond Res 32(3): 651-659, 2018-Calisthenics, a form of resistance training, continue to increase in popularity; however, few studies have examined their effectiveness for muscle strength improvement. The purpose of this study was to determine whether progressive calisthenic push-up training (PUSH) is comparable with traditional bench press training (BENCH) as a technique for increasing muscle strength and thickness...
March 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29401194/anthropometric-and-physiological-characteristics-of-brazilian-jiu-jitsu-athletes
#3
Karsten Øvretveit
The aim of this study was to describe anthropometric and physiological characteristics of Brazilian jiu-jitsu (BJJ) athletes. For this purpose, 42 male athletes were recruited from one of the largest BJJ academies in central Norway. The subjects were 32 ± 6 (SD) years old, 181.9 ± 7.2 cm tall, had a body mass (mb) of 85.7 ± 10.6 kg, and 5.5 ± 3.7 years of BJJ training experience. The subjects underwent segmental multifrequency bioelectrical impedance analysis (BIA) of body composition, direct measurements of pulmonary function and maximal oxygen uptake (V[Combining Dot Above]O2max), assessments of one-repetition maximum (1RM) in the parallel squat and paused bench press, and one set of pronated-grip pull-ups to muscular failure...
February 1, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29377715/fitness-level-modulates-intraocular-pressure-responses-to-strength-exercises
#4
Jesús Vera, Raimundo Jiménez, Beatríz Redondo, David Cárdenas, Amador García-Ramos
Purpose/Aim: The execution of strength exercises has demonstrated to increase the intraocular pressure (IOP) levels, and it may have a negative impact on the ocular health. We aimed to explore the influence of fitness level on the acute IOP response to strength exercises performed under different loading conditions, as well as to test whether the IOP responses differ between the bench press and jump squat when performed against the same relative loads. MATERIALS AND METHODS: Forty military personnel males were divided in two subgroups (20 high-fit and 20 low-fit) based on their relative to body mass one-repetition maximum (1-RM)...
January 29, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29373431/the-importance-of-strength-and-power-on-key-performance-indicators-in-elite-youth-soccer
#5
Christopher E Wing, Anthony N Turner, Chris J Bishop
The purpose of this investigation was to examine the importance of strength and power in relation to key performance indicators (KPI's) within competitive soccer match play. This was achieved through using an experimental approach where fifteen subjects were recruited from a professional soccer club's scholarship squad during the 2013/14 season. Following anthropometric measures, power and strength were assessed across a range of tests which included the squat jump (SJ), countermovement jump (CMJ), 20 metre (m) sprint and arrowhead change of direction test...
January 24, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29373428/a-four-week-unstructured-break-improved-athletic-performance-in-collegiate-rugby-players
#6
C D Jensen, D Gleason, J M VanNess
This study analyzed the changes in athletic performance and anthropometric characteristics in collegiate male club rugby athletes (n=14) following a four-week winter break. All measurements were collected prior to and after the break. Body composition was assessed by body mass index and hydrostatic weighing. Performance measurements were: VO2 max, vertical jump, 10-yard sprint, squat max, and bench press max. Prior to testing, each subject was acclimated to the protocols to reduce learning effects. During the four-week break, no workouts were provided for the athletes; it was unsupervised and unstructured...
January 24, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29370260/muscle-strength-and-regional-lean-body-mass-influence-on-mineral-bone-health-in-young-male-adults
#7
Bianca Rosa Guimarães, Luciana Duarte Pimenta, Danilo Alexandre Massini, Daniel Dos Santos, Leandro Oliveira da Cruz Siqueira, Astor Reis Simionato, Luiz Gustavo Almeida Dos Santos, Cassiano Merussi Neiva, Dalton Muller Pessôa Filho
The relationship between muscle strength and bone mineral content (BMC) and bone mineral density (BMD) is supposed from the assumption of the mechanical stress influence on bone tissue metabolism. However, the direct relationship is not well established in younger men, since the enhancement of force able to produce effective changes in bone health, still needs to be further studied. This study aimed to analyze the influence of muscle strength on BMC and BMD in undergraduate students. Thirty six men (24.9 ± 8...
2018: PloS One
https://www.readbyqxmd.com/read/29370027/muscular-strength-is-associated-with-higher-intraocular-pressure-in-physically-active-males
#8
Jesús Vera, Raimundo Jiménez, Amador García-Ramos, David Cárdenas
SIGNIFICANCE: The positive association between intraocular pressure (IOP) and relative maximum force may have relevance for exercise recommendations when IOP is a concern. PURPOSE: The relationship between exercise and IOP has been approached in several studies. However, the influence of muscle function on IOP remains underexplored. This study aimed to determine the relationship between the maximal mechanical capabilities of muscles to generate force, velocity, and power with IOP...
February 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29369954/short-term-training-cessation-as-a-method-of-tapering-to-improve-maximal-strength
#9
Hayden J Pritchard, Matthew J Barnes, Robin J C Stewart, Justin W L Keogh, Michael R McGuigan
Pritchard, HJ, Barnes, MJ, Stewart, RJC, Keogh, JWL, and McGuigan, MR. Short-term training cessation as a method of tapering to improve maximal strength. J Strength Cond Res 32(2): 458-465, 2018-The aim of this study was to determine the effects of 2 different durations of training cessation on upper- and lower-body maximal strength performance and to investigate the mechanisms underlying performance changes following short-term training cessation. Eight resistance trained males (23.8 ± 5.4 years, 79.6 ± 10...
February 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29367908/surgical-treatment-of-pectoralis-major-muscle-rupture-with-adjustable-cortical-button
#10
Alberto de Castro Pochini, Marcus de Souza Barbosa Rodrigues, Larissa Yamashita, Paulo Santoro Belangero, Carlos Vicente Andreoli, Benno Ejnisman
Objective: To assess the tendon reconstruction technique for total rupture of the pectoralis major muscle using an adjustable cortical button. Methods: Prospective study of 27 male patients with a mean age of 29.9 (SD = 5.3 years) and follow-up of 2.3 years. The procedure consisted of autologous grafts taken from the semitendinosus and gracilis tendons and an adjustable cortical button. Patients were evaluated functionally by the Bak criteria. Results: The surgical treatment of pectoralis major muscle tendon reconstruction was performed in the early stages (three weeks) in six patients (22...
January 2018: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29351163/comparison-of-the-force-velocity-and-power-time-curves-between-the-concentric-only-and-eccentric-concentric-bench-press-exercises
#11
Alejandro Pérez-Castilla, Paul Comfort, John J McMahon, Francisco Luis Pestaña-Melero, Amador García-Ramos
The aim of this study was to compare the temporal and mechanical variables between the concentric-only and eccentric-concentric bench press (BP) variants. Twenty-one men (age: 22.0±4.2 years, body mass: 73.4±7.7 kg, height: 177.2±8.0 cm; one-repetition maximum [1RM]: 1.12±0.12 kg⋅kg) were evaluated during the concentric-only and eccentric-concentric BP variants using 80% 1RM. Temporal (concentric phase duration, propulsive phase duration, and time to reach the maximum values of force, velocity, and power) and mechanical variables (force, velocity, and power), determined using a linear velocity transducer, were compared between both BP variants...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29340002/performance-changes-of-elite-paralympic-judo-athletes-during-a-paralympic-games-cycle-a-case-study-with-the-brazilian-national-team
#12
Irineu Loturco, Lucas A Pereira, Ciro Winckler, Jaime R Bragança, Roger A da Fonseca, Ronaldo Kobal, Cesar C Cal Abad, Katia Kitamura, Fabio Y Nakamura, Emerson Franchini
The aim of this study was to describe the variations in power performance of elite Paralympic judo athletes across three consecutive training cycles of preparation for the ParaPan American Games, the World Championship and the Paralympic Games. Eleven Paralympic judokas from the Brazilian National team participated in this study. They were repeatedly assessed using squat and countermovement jumps, mean propulsive power (MPP) in the jump-squat (JS), the bench press and prone bench pull at several moments of the preparation...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29340001/neuromuscular-control-during-the-bench-press-movement-in-an-elite-disabled-and-able-bodied-athlete
#13
Artur Gołaś, Anna Zwierzchowska, Adam Maszczyk, Michał Wilk, Petr Stastny, Adam Zając
The disabled population varies significantly in regard to physical fitness, what is conditioned by the damage to the locomotor system. Recently there has been an increased emphasis on the role of competitive sport in enhancing health and the quality of life of individuals with disability. One of the sport disciplines of Paralympics is the flat bench press. The bench press is one of the most popular resistance exercises used for the upper body in healthy individuals. It is used not only by powerlifters, but also by athletes in most strength-speed oriented sport disciplines...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339982/relationships-between-mechanical-variables-in-the-traditional-and-close-grip-bench-press
#14
Robert G Lockie, Samuel J Callaghan, Matthew R Moreno, Fabrice G Risso, Tricia M Liu, Alyssa A Stage, Samantha A Birmingham-Babauta, John J Stokes, Dominic V Giuliano, Adrina Lazar, DeShaun L Davis, Ashley J Orjalo
The study aim was to determine relationships between mechanical variables in the one-repetition maximum (1RM) traditional bench press (TBP) and close-grip bench press (CGBP). Twenty resistance-trained men completed a TBP and CGBP 1RM. The TBP was performed with the preferred grip; the CGBP with a grip width of 95% biacromial distance. A linear position transducer measured: lift distance and duration; work; and peak and mean power, velocity, and force. Paired samples t-tests (p < 0.05) compared the 1RM and mechanical variables for the TBP and CGBP; effect sizes (d) were also calculated...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29324578/training-volume-not-frequency-indicative-of-maximal-strength-adaptations-to-resistance-training
#15
Ryan J Colquhoun, Christopher M Gai, Danielle Aguilar, Daniel Bove, Jeffrey Dolan, Andres Vargas, Kaylee Couvillion, Nathaniel D M Jenkins, Bill I Campbell
PURPOSE: To compare the effects of a high- versus a moderate-training frequency on maximal strength and body composition. METHODS: 28 young, healthy resistance-trained males were randomly assigned to either: 3x/week (3x; n=16) or 6x/week (6x; n=12). Dependent variables (DVs) assessed at baseline and after the 6-week training intervention included: squat 1RM (SQ1RM), bench press 1RM (BP1RM), deadlift 1RM (DL1RM), powerlifting total (PLT), Wilk's coefficient (WC), fat-free mass (FFM) and fat mass (FM)...
January 5, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29311763/the-acute-effects-of-a-multi-ingredient-pre-workout-supplement-on-resting-energy-expenditure-and-exercise-performance-in-recreationally-active-females
#16
Michael Cameron, Clayton L Camic, Scott Doberstein, Jacob L Erickson, Andrew R Jagim
Background: The use of dietary supplements to improve performance is becoming increasingly popular among athletes and fitness enthusiasts. Unfortunately, there is a tremendous lack of research being done regarding female athletes and the use of sport supplements. The purpose of this study was to examine the acute effects of multi-ingredient pre-workout supplement (MIPS) ingestion on resting metabolism and exercise performance in recreationally-active females. Methods: Fifteen recreationally-active females participated in a randomized, double-blind, placebo controlled study...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29309388/the-effects-of-variable-resistance-using-chains-on-bench-throw-performance-in-trained-rugby-players
#17
Mark S Godwin, John F T Fernandes, Craig Twist
This study sought to determine the effects of variable resistance using chain resistance on bench throw performance. Eight male rugby union players (19.4 ± 2.3 y, 88.8 ± 6.0 kg, 1RM 105.6 ± 17.0 kg) were recruited from a national league team. In a randomised cross-over design participant's performed three bench throws at 45% one repetition maximum (1RM) at a constant load (No Chains) or a variable load (30% 1RM constant load, 15% 1RM variable load; Chains) with seven days between conditions. For each repetition the peak and mean velocity, peak power, peak acceleration and time to peak velocity were recorded...
January 3, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29309385/the-effects-of-a-6-week-bench-press-program-using-the-freak-bartm-in-a-sample-of-collegiate-club-powerlifters
#18
Jamie J Ghigiarelli, Luke M Pelton, Adam M Gonzalez, Andras M Fulop, Joshua Y Gee, Katie M Sell
Powerlifters train with specialty bars for unstable load (UL) training. For the bench press, the acute effects of UL are mixed, with few studies that examine training interventions. The purpose of this study was to examine the effects of a 6-week bench press training program that uses the Freak Bar (FB) as compared to a traditional barbell (TB) on maximum bench press, peak force, and peak impulse. Seven males and 3 females (21 ± 2.0 yr, 172.2 ± 2.9 cm, and 95.3 ± 20.3 kg) were required to bench press 2 days per week as part of a structured program...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29287751/validation-of-a-visual-spatial-secondary-task-to-assess-automaticity-in-laparoscopic-skills
#19
Richard Castillo, Juan Alvarado, Pablo Moreno, Pablo Billeke, Carlos Martínez, Julián Varas, Nicolás Jarufe
INTRODUCTION: Our objective was to assess reliability and validity of a visual-spatial secondary task (VSST) as a method to measure automaticity on a basic simulated laparoscopic skill model. In motor skill acquisition, expertise is defined by automaticity. The highest level of performance with less cognitive and attentional resources characterizes this stage, allowing experts to perform multiple tasks. Conventional validated parameters as operative time, objective assessment skills scales (OSATS), and movement economy, are insufficient to distinguish if an individual has reached the more advanced learning phases, such as automaticity...
December 26, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29283928/maximal-upper-body-strength-and-oxygen-uptake-are-associated-with-performance-in-high-level-200-m-sprint-kayakers
#20
Craig W Pickett, Kazunori Nosaka, James Zois, Will G Hopkins, Anthony J, Blazevich
Current training and monitoring methods in sprint kayaking are based on the premise that upper-body muscular strength and aerobic power are both important for performance, but limited evidence exists to support this premise in high-level athletes. Relationships between measures of strength, maximal oxygen uptake (VO2max) and 200-m race times in kayakers competing at national-to-international levels were examined. Data collected from Australian Canoeing training camps and competitions for 7 elite, 7 national and 8 club level male sprint kayakers were analyzed for relationships between maximal isoinertial strength (3-RM bench press, bench row, chin-up and deadlift), VO2max on a kayak ergometer, and 200-m race time...
December 27, 2017: Journal of Strength and Conditioning Research
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