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https://www.readbyqxmd.com/read/29140911/effect-of-bench-press-load-knowledge-on-repetitions-rpe-and-attentional-focus
#1
Christina M Beaudoin, Zachary Cox, Tyler Dundore, Tayler Thomas, Johnathon Kim, Daniel Pillivant
Few studies have examined the role of the teleoanticipation during resistance training. The purpose of this study was to examine the effect of bench press (BP) load knowledge on repetitions completed, ratings of perceived exertion (RPE), and attentional focus (%associative). Thirty-six recreationally active resistance trained men (n = 25) and women (n = 11) participated in this study (age= 20.97 + 1.87 yrs; ht 174.12 + 9.41 cm; mass 80.14 + 14.03 kg). All subjects completed three testing sessions: 1) One-repetition maximum (1RM) BP determination; 2) Submaximal BP repetitions to fatigue known load (KL); 3) Submaximal BP repetitions to fatigue unknown load (UL)...
November 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140909/the-effects-of-load-on-peak-power-output-fatigue-during-the-bench-throw
#2
David Boffey, Bulent Sokmen, Kurt Sollanek, Wanda Boda, Steven Winter
The ability to create power is an important variable for athletic success. No study to date has compared peak power output (PPO) fatigue across multiple sets and with different loads with the bench throw. This study aimed to begin the process of establishing empirical upper body power training guidelines for moderately strong athletes by determining how load (30%, 45%, 60% 1RM) affects PPO (Watts) dropoff during 3 sets of 10 repetitions of the bench throw. 10 resistance-trained male volunteers ((mean ± SD): age 20...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140148/the-reliability-of-individualized-load-velocity-profiles
#3
Harry G Banyard, K Nosaka, Alex D Vernon, G Gregory Haff
PURPOSE: This study examined the reliability of peak velocity (PV), mean propulsive velocity (MPV), and mean velocity (MV) in the development of load-velocity profiles (LVP) in the full depth free-weight back squat performed with maximal concentric effort. METHODS: Eighteen resistance-trained men performed a baseline one-repetition maximum (1RM) back squat trial and three subsequent 1RM trials used for reliability analyses, with 48-hours interval between trials...
November 15, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29129608/no-exacerbation-of-knee-joint-pain-and-effusion-following-preoperative-progressive-resistance-training-in-patients-scheduled-for-total-knee-arthroplasty-secondary-analyses-from-a-randomized-controlled-trial
#4
Birgit Skoffer, Ulrik Dalgas, Thomas Maribo, Kjeld Søballe, Inger Mechlenburg
BACKGROUND: Preoperative progressive resistance training (PRT) is controversial in patients scheduled for total knee arthroplasty (TKA), because of the concern that it may exacerbate knee joint pain and effusion. OBJECTIVE: To examine if preoperative PRT initiated 5 weeks prior to TKA would 1) exacerbate pain and knee effusion, 2) allow a progressively increased training load throughout the training period that would subsequently increase muscle strength. DESIGN: Secondary analyses from a randomized controlled trial...
November 9, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29127508/active-and-passive-recovery-influence-responses-of-luteinizing-hormone-and-testosterone-to-a-fatiguing-strength-loading
#5
R S Taipale, Heikki Kyröläinen, S S Gagnon, B Nindl, J Ahtiainen, K Häkkinen
The purpose of this study was to examine the acute hormonal and muscular responses to a strenuous strength loading [bilateral leg press (LP) 10 × 10 1RM] followed by loading-specific active (AR, n = 7, LP 10 × 10 × 30% 1RM) or passive (PR, n = 11, seated) recovery. The subjects were men age: 26 ± 4 years, height: 174 ± 8 cm, body mass: 75 ± 13 kg. After control measurements, experimental measurements were conducted at pre- and post-loading as well as post-recovery and next morning...
November 10, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29126339/the-force-velocity-relationship-in-older-people-reliability-and-validity-of-a-systematic-procedure
#6
Julian Alcazar, Carlos Rodriguez-Lopez, Ignacio Ara, Ana Alfaro-Acha, Asier Mañas-Bote, Amelia Guadalupe-Grau, Francisco Jose García-García, Luis M Alegre
This study compared the reliability and validity of different protocols evaluating the force-velocity (F-V) relationship and muscle power in older adults. Thirty-one older men and women (75.8±4.7 years) underwent two F-V tests by collecting the mean and peak force and velocity data exerted against increasing loads until one repetition maximum (1RM) was achieved in the leg press exercise. Two attempts per load were performed, with a third attempt when F-V points deviated from the linear F-V regression equation...
November 10, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29120983/assessing-differences-in-anthropometric-and-fitness-characteristics-between-police-academy-cadets-and-incumbent-officers
#7
Robin Orr, J Jay Dawes, Rodney Pope, Joseph Terry
The physical fitness of police officers must be developed in new cadets and sustained in incumbent officers. The aims of this study were to profile and compare the anthropometric and fitness characteristics of police academy cadets and incumbent officers of varying ages from a single police force. Retrospective data for 84 police academy cadets (♂=66, mean age=27.96±5.73 yrs; ♀=18, mean age=30.50±5.76 yrs) and 80 incumbent police officers (♂=73, mean age=39.43±8.28 yrs; ♀=7, mean age=37.86±3.67 yrs) were compiled...
November 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29114526/skin-temperature-response-to-unilateral-training-measured-with-infrared-thermography
#8
Víctor L Escamilla-Galindo, Alejandro Estal-Martínez, Jakub G Adamczyk, Ciro José Brito, Javier Arnaiz-Lastras, Manuel Sillero-Quintana
This study aimed to identify the skin temperature (Tsk) behavior to understand the acute cross-effect after unilateral training of lower-limbs. Seventeen healthy young men (weight, 75.2±5.5 kg; height, 1.8±0.1 m; age, 22.5±1.6 years) were divided into two groups: high-trained (n=8) and low-trained (n=9). All participants performed: (a) one-repetition maximum (1RM) testing protocol on the leg press, (b) a unilateral training protocol (4×10 repetitions at 70% of 1RM for leg press and 4×10 repetitions at 50% of 1RM for knee extension)...
October 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29105312/acute-effect-of-a-resistance-exercise-session-on-markers-of-cartilage-breakdown-and-inflammation-in-women-with-rheumatoid-arthritis
#9
Ana Carolina Pereira Nunes Pinto, Jamil Natour, Charlles Heldan de Moura Castro, Marina Eloi, Império Lombardi Junior
AIM: To assess the acute effect of resistance exercise (RE) on circulating biomarkers of cartilage breakdown and inflammation in women with rheumatoid arthritis (RA). METHODS: Thirty-four volunteers (17 with and 17 without RA), participated in a 25 min RE session (knee extension, knee flexion, hip abduction and hip adduction) with one set of 12 repetitions at 50% of one repetition maximum (1RM) and one set of eight repetitions at 75% of 1RM. Blood samples were collected 30 and 5 min before, immediately after and 1, 2 and 24 h after the session...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29084094/the-effects-of-practical-blood-flow-restriction-training-on-adolescent-lower-body-strength
#10
Paul E Luebbers, Emily V Witte, Johnathan Q Oshel
The purpose of this study was to examine the effects of a practical blood flow restriction (BFR) training program on lower-body strength of high school weightlifters. Twenty-five students were divided into three groups. For six weeks, each group completed the same resistance training program with the exception of the parallel back squat exercise (2 days/week), which was different for each group. One group (HI) completed a traditional high load (≥65% 1RM) back squat protocol with three sets of low repetitions (≤10)...
October 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29071380/satellite-cell-response-to-concurrent-resistance-exercise-and-high-intensity-interval-training-in-sedentary-overweight-obese-middle-aged-individuals
#11
Jamie K Pugh, Steve H Faulkner, Mark C Turner, Myra A Nimmo
PURPOSE: Sarcopenia can begin from the 4-5th decade of life and is exacerbated by obesity and inactivity. A combination of resistance exercise (RE) and endurance exercise is recommended to combat rising obesity and inactivity levels. However, work continues to elucidate whether interference in adaptive outcomes occur when RE and endurance exercise are performed concurrently. This study examined whether a single bout of concurrent RE and high-intensity interval training (HIIT) alters the satellite cell response following exercise compared to RE alone...
October 25, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29069548/evidence-of-homologous-and-heterologous-effects-after-unilateral-leg-training-in-youth
#12
Aymen Ben Othman, David G Behm, Anis Chaouachi
The positive effects of unilateral training on contralateral muscles (cross education) has been demonstrated with adults for over a century. There is limited evidence for cross education of heterologous muscles. Cross education has not been demonstrated with children. It was the objective of this study to investigate cross education training in children examining ipsilateral and contralateral homologous and heterologous muscles. Forty-eight male children (10-13 years) were assessed for unilateral, ipsilateral and contralateral lower limb strength, power and endurance (1 repetition maximum (RM) leg press, knee extensors (KE) and flexors (KF) maximum voluntary isometric contractions (MVIC), countermovement jump (CMJ), muscle endurance test (leg press repetitions with 60% 1RM)), and upper body unilateral MVIC elbow flexors (EF) and handgrip strength...
October 25, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29065077/optimizing-half-squat-postactivation-potential-load-in-squat-jump-training-for-eliciting-relative-maximal-power-in-ski-jumpers
#13
Artur Gołaś, Michal Wilk, Petr Stastny, Adam Maszczyk, Katarzyna Pajerska, Adam Zając
Gołaś, A, Wilk, M, Stastny, P, Maszczyk, A, Pajerska, K, and Zając, A. Optimizing half squat postactivation potential load in squat jump training for eliciting relative maximal power in ski jumpers. J Strength Cond Res 31(11): 3010-3017, 2017-Training load manipulation in a single workout session can increase or decrease training effectiveness in terms of athletes' strength or power gains. In ski jumping, the complex training that elicits maximal power gains may take advantage of the postactivation potentiation (PAP) mechanism...
November 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29053943/inflammation-status-of-healthy-young-men-initial-and-specific-responses-to-resistance-training
#14
Johanna K Ihalainen, Heikki Peltonen, Göran Paulsen, Juha P Ahtiainen, Ritva S Taipale, Mari Hämäläinen, Eeva Moilanen, Antti A Mero
PURPOSE: Our primary aim was to study the effects of a 4 wk preparatory resistance training (RT) period followed by 12 wks of two specific RT protocols (either hypertrophic-strength, HS, or strength-hypertrophy-power, SHP, training) on inflammation markers and the possible relationship of the changes in abdominal fat and lean mass to the changes in inflammation status. METHODS: A total of 82 healthy men were included in the study. Maximal concentric leg press strength (1RM), total body lean mass, total body and abdominal fat mass, circulating high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), interleukin-1 receptor antagonist (IL-1ra), monocyte chemoattractant protein 1 (MCP-1), and selected adipocytokines (resistin, adiponectin and leptin) concentrations were measured before (PRE) and after 4 (wk4) and 16 weeks (wk16) of RT...
October 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29053725/the-effects-of-training-with-loads-that-maximise-power-output-and-individualised-repetitions-vs-traditional-power-training
#15
J M Sarabia, M Moya-Ramón, J L Hernández-Davó, J Fernandez-Fernandez, R Sabido
BACKGROUND: It has been suggested that strength training effects (i.e. neural or structural) vary, depending on the total repetitions performed and velocity loss in each training set. PURPOSE: The aim of this study is to compare the effects of two training programmes (i.e. one with loads that maximise power output and individualised repetitions, and the other following traditional power training). METHODS: Twenty-five males were divided into three groups (optimum power [OP = 10], traditional training [TT = 9] and control group [CG = 6])...
2017: PloS One
https://www.readbyqxmd.com/read/29045317/the-relationships-between-height-arm-length-and-leg-length-on-the-mechanics-of-the-conventional-and-high-handle-hexagonal-bar-deadlift
#16
Robert G Lockie, Matthew R Moreno, Ashley J Orjalo, Adrina Lazar, Tricia M Liu, Alyssa A Stage, Samantha A Birmingham-Babauta, John J Stokes, Dominic V Giuliano, Fabrice G Risso, DeShaun L Davis, Samuel J Callaghan
The study investigated relationships between arm (AL) and leg length (LL) and conventional deadlift (CD) and high-handle hexagonal bar deadlift (HHBD) mechanics. Twenty-three resistance-trained subjects (14 males, 9 females) completed a one-repetition maximum (1RM) CD and HHBD. A linear position transducer was used to measure: lift distance and duration; peak and mean power, velocity, and force; time to peak power and velocity; and work. Right AL and LL were measured, and AL-to-LL ratio (AL:LL) was also calculated...
October 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29045315/a-single-dose-of-oral-atp-supplementation-improves-performance-and-physiological-response-during-lower-body-resistance-exercise-in-recreational-resistance-trained-males
#17
Marcelo C Freitas, Jason M Cholewa, Jose Gerosa-Neto, Daniela C Gonçalves, Erico C Caperuto, Fábio S Lira, Fabrício E Rossi
The aim of this study was to investigate the acute effect of ATP supplementation on performance and physiological responses during resistance exercise in recreationally resistance trained males. Eleven men (age= 27.5±5.5 yrs, weight= 83.4±9.8 kg, height= 182±0.04 cm) completed two randomized, double-blind trials: ATP supplement condition (ATP=400mg) or a placebo condition. Thirty minutes after supplement consumption, subjects performed four sets of half-squats until momentary muscular failure at 80% of the 1RM with two minutes of recovery between sets...
October 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29043659/magnitude-of-muscle-strength-and-mass-adaptations-between-high-load-resistance-training-versus-low-load-resistance-training-associated-with-blood-flow-restriction-a-systematic-review-and-meta-analysis
#18
REVIEW
Manoel E Lixandrão, Carlos Ugrinowitsch, Ricardo Berton, Felipe C Vechin, Miguel S Conceição, Felipe Damas, Cleiton A Libardi, Hamilton Roschel
BACKGROUND: Low-load resistance training (< 50% of one-repetition maximum [1RM]) associated with blood-flow restriction (BFR-RT) has been thought to promote increases in muscle strength and mass. However, it remains unclear if the magnitude of these adaptations is similar to conventional high-load resistance training (> 65% 1RM; HL-RT). OBJECTIVE: To compare the effects of HL- versus BFR-RT on muscle adaptations using a systematic review and meta-analysis procedure...
October 17, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29031002/resistance-training-reduces-metabolic-syndrome-and-inflammatory-markers-in-older-women-a-randomized-controlled-trial
#19
Crisieli M Tomeleri, Mariana F Souza, Roberto C Burini, Cláudia R Cavaglieri, Alex S Ribeiro, Melissa Antunes, João P Nunes, Danielle Venturini, Décio S Barbosa, Luís B Sardinha, Edilson S Cyrino
BACKGROUND: There is controversial information regarding the effects of resistance training (RT) on the reduction of risk factors and metabolic syndrome (MetS)-related phenotypes, particularly, in older women. This study analyzed the effects of a 12-week RT program without dietary interventions on MetS components and inflammatory biomarkers in older women. METHODS: Fifty-three older women (70.4 ± 5.7 years; 26.7 ± 4.0 kg/m(2) ) were randomly assigned to a training group (TG, n = 26) that performed 12 weeks of RT program or a control group (CG, n = 27) that did not perform any type of physical exercise (same period)...
October 14, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/29024041/strength-training-improves-double-poling-performance-after-prolonged-submaximal-exercise-in-cross-country-skiers
#20
S Øfsteng, Ø Sandbakk, M van Beekvelt, D Hammarström, R Kristoffersen, J Hansen, G Paulsen, B R Rønnestad
The purpose of this study was to investigate the effects of adding strength training with or without vibration to cross-country (XC) skiers' endurance training on double poling (DP) performance, physiological and kinematic adaptations. Twenty-one well-trained male XC skiers combined endurance- and upper-body strength-training three times per week, either with (n=11) or without (n=10) superimposed vibrations for 8 weeks, whereas eight skiers performed endurance training only (CON). Testing included 1RM in upper-body exercises, work economy, neural activation, oxygen saturation in muscle and DP kinematics during a prolonged submaximal DP roller ski test which was directly followed by a time to exhaustion (TTE) test...
October 10, 2017: Scandinavian Journal of Medicine & Science in Sports
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