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https://www.readbyqxmd.com/read/28229573/associations-between-functional-movement-screen-scores-and-performance-variables-in-surf-athletes
#1
Bruno A Ferreira da Silva, Filipe M Clemente, Fernando M Lourenço Martins
BACKGRAUND: Functional Movement Screen (FMS) have been used to assess the movement patterns in daily sports practice. Some associations between FMS scores and physical variables have been found in some sports. Nevertheless, no study was conducted in surf. METHODS: Eighteen surf athletes (11 male) participated in the study (18.3 ± 6.3 y; 60.0 ± 9.6 kg; 168.6 ± 8.1 cm). All participants completed anthropometrics, Knee to Wall test, Functional Movement Screen, Isometric Knee Extension, Handgrip, Squat and Countermovement Jump...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28213750/effect-of-an-acute-dose-of-omega-3-fish-oil-following-exercise-induced-muscle-damage
#2
J R Jakeman, D M Lambrick, B Wooley, J A Babraj, J A Faulkner
PURPOSE: The purpose of this double-blind, placebo-controlled study was to examine the effect of two fish oil supplements, one high in EPA (750 mg EPA, 50 mg DHA) and one low in EPA (150 mg EPA, 100 mg DHA), taken acutely as a recovery strategy following EIMD. METHODS: Twenty-seven physically active males (26 ± 4 year, 1.77 ± 0.07 m, 80 ± 10 kg) completed 100 plyometric drop jumps to induce muscle damage. Perceptual (perceived soreness) and functional (isokinetic muscle strength at 60° and 180° s(-1), squat jump performance and countermovement jump performance) indices of EIMD were recorded before, and 1, 24, 48, 72, and 96h after the damaging protocol...
February 17, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28195978/lack-of-influence-of-muscular-performance-parameters-on-spatio-temporal-adaptations-with-increased-running-velocity
#3
Luis E Roche-Seruendo, Felipe García-Pinillos, Joana Haicaguerre, Ana V Bataller-Cervero, Víctor M Soto-Hermoso, Pedro Á Latorre-Román
This study aimed to analyse the influence of muscular performance parameters on spatio-temporal gait characteristics during running when gradually increasing speed. 51 recreationally trained male endurance runners (age: 28 ± 8 years) voluntarily participated in this study. Subjects performed a battery of jumping tests (squat jump, countermovement jump, and 20 cm drop jump), and after that, the subjects performed an incremental running test (10 to 20 km/h) on a motorized treadmill. Spatio-temporal parameters were measured using the OptoGait system...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28192512/explosive-strength-and-endurance-adaptations-in-young-elite-soccer-players-during-two-soccer-seasons
#4
Riccardo Di Giminiani, Christiano Visca
The purpose of the present study was to investigate the explosive strength and endurance adaptations in young elite soccer players who underwent a supervised training program for a period of two years. Nineteen players, with seven years of training experience (age: 13.3 ± 0.1 years; body weight: 57.9 ± 4.9 kg; height: 168.9 ± 4.7 cm; BMI: 20.1 ± 1.1 kg/m2), voluntarily participated in the present study. The testing sessions were performed at the beginning of the preparation period in the first (T1), second (T2), and third year (T3)...
2017: PloS One
https://www.readbyqxmd.com/read/28182510/the-effect-of-plyometric-training-volume-in-prepubertal-male-soccer-players-athletic-performance
#5
Helmi Chaabene, Yassine Negra
PURPOSE: The aim of this study was to assess and to compare the effects of 8-weeks in-season (2 sessions per-week) low and high-volume plyometric training (PT) on measures of physical fitness in prepubertal male soccer players. METHODS: A total of twenty-five soccer players were randomly assigned to low-volume plyometric training group (LPT; n=13; age = 12.68 ± 0.23 years; age at peak height velocity (APHV) = 14.25 ± 0.29 years, maturity-offset = -1.57 ± 0.29 years) and high-volume plyometric training group (HPT; n=12; age = 12...
February 9, 2017: International Journal of Sports Physiology and Performance
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
#6
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/28173929/postflight-reconditioning-for-european-astronauts-a-case-report-of-recovery-after-six-months-in-space
#7
Nora Petersen, Gunda Lambrecht, Jonathan Scott, Natalie Hirsch, Maria Stokes, Joachim Mester
BACKGROUND: Postflight reconditioning of astronauts is understudied. Despite a rigorous, daily inflight exercise countermeasures programme during six months in microgravity (μG) on-board the International Space Station (ISS), physiological impairments occur and postflight reconditioning is still required on return to Earth. Such postflight programmes are implemented by space agency reconditioning specialists. Case Description and Assessments: A 38 year old male European Space Agency (ESA) crewmember's pre- and postflight (at six and 21 days after landing) physical performance from a six-month mission to ISS are described...
January 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28169153/effects-of-light-load-maximal-lifting-velocity-weight-training-vs-combined-weight-training-and-plyometrics-on-sprint-vertical-jump-and-strength-performance-in-adult-soccer-players
#8
David Rodríguez-Rosell, Julio Torres-Torrelo, Felipe Franco-Márquez, José Manuel González-Suárez, Juan José González-Badillo
OBJECTIVES: The purpose of this study was to compare the effects of combined light-load maximal lifting velocity weight training (WT) and plyometric training (PT) with WT alone on strength, jump and sprint performance in semiprofessional soccer players. DESIGN: Experimental, pre-post tests measures. METHODS: Thirty adult soccer players were randomly assigned into three groups: WT alone (FSG, n=10), WT combined to jump and sprint exercises (COM, n=10) and control group (CG, n=10)...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28166129/effect-of-a-5-month-worksite-physical-activity-program-on-tertiary-employees-overall-health-and-fitness
#9
Pauline Manon Genin, Fabrice Degoutte, Julien Finaud, Bruno Pereira, David Thivel, Martine Duclos
OBJECTIVE: This pilot study questions the effects of a worksite physical activity program on health and fitness in tertiary employees. METHODS: Ninety-five employees were randomly assigned to Control (CON); Novice (NOV); Experienced group (EXP). The NOV and EXP groups followed a 5-month worksite physical activity program (at least two sessions/week). Body composition, physical activity level and physical fitness, eating habits, health perception, sleep quality, pain, and quality of life were assessed...
February 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28152673/effects-of-adding-a-weekly-eccentric-overload-training-session-on-strength-and-athletic-performance-in-team-handball-players
#10
Rafael Sabido, Jose Luis HernáNdez-Davó, Javier Botella, Angel Navarro, Julio Tous-Fajardo
To investigate the influence of adding a weekly eccentric-overload training (EOT) session in several athletic performance's tests, 18 team-handball players were assigned either to an EOT (n = 11) or a Control (n = 7) group. Both groups continued to perform the same habitual strength training, but the EOT group added one session/week during a 7-week training programme consisting of four sets of eight repetitions for the bilateral half-squat and unilateral lunge exercises. The test battery included handball throwing velocity, maximum dynamic strength (1RM), countermovement jump (CMJ), 20 m sprint, triple hop for distance, and eccentric/concentric power in both the half-squat and lunge exercises...
February 2, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28149424/effect-of-8-weeks-of-free-weight-and-machine-based-strength-training-on-strength-and-power-performance
#11
Klaus Wirth, Michael Keiner, Hagen Hartmann, Andre Sander, Christoph Mickel
The aim of this study was to evaluate the effectiveness of free-weight and machine-based exercises to increase different strength and speed-strength variables. One hundred twenty male participants (age: 23.8 ± 2.5 years; body height: 181.0 ± 6.8 cm; body mass: 80.2 ± 8.9 kg) joined the study. The 2 experimental groups completed an 8 week periodized strength training program that included 2 training sessions per week. The exercises that were used in the strength training programs were the parallel barbell squat and the leg press...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149419/role-of-vertical-jumps-and-anthropometric-variables-in-maximal-kicking-ball-velocities-in-elite-soccer-players
#12
Lois Rodríguez-Lorenzo, Miguel Fernandez-Del-Olmo, José Andrés Sanchez-Molina, Rafael Martín-Acero
Kicking is one of the most important skills in soccer and the ability to achieve ma ximal kicking velocity with both legs leads to an advantage for the soccer player. This study examined the relationship be tween kicking ball velocity with both legs using anthropometric measurements and vertical jumps (a squat jump (SJ); a countermovement jump without (CMJ) and with the arm swing (CMJA) and a reactive jump (RJ)). Anthropome tric measurements did not correlate with kicking ball velocity. Vertical jumps correlated significantly with kicking ball velocity using the dominant leg only (r = ...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149376/a-new-physical-performance-classification-system-for-elite-handball-players-cluster-analysis
#13
Iker J Bautista, Ignacio J Chirosa, Joseph E Robinson, Roland van der Tillaar, Luis J Chirosa, Isidoro Martínez Martín
The aim of the present study was to identify different cluster groups of handball players according to their physical performance level assessed in a series of physical assessments, which could then be used to design a training program based on individual strengths and weaknesses, and to determine which of these variables best identified elite performance in a group of under-19 [U19] national level handball players. Players of the U19 National Handball team (n=16) performed a set of tests to determine: 10 m (ST10) and 20 m (ST20) sprint time, ball release velocity (BRv), countermovement jump (CMJ) height and squat jump (SJ) height...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149354/investigating-the-effects-of-typical-rowing-strength-training-practices-on-strength-and-power-development-and-2-000-m-rowing-performance
#14
Thomas Ian Gee, Nicholas Caplan, Karl Christian Gibbon, Glyn Howatson, Kevin Grant Thompson
This study aimed to determine the effects of a short-term, strength training intervention, typically undertaken by club-standard rowers, on 2,000 m rowing performance and strength and power development. Twenty-eight male rowers were randomly assigned to intervention or control groups. All participants performed baseline testing involving assessments of muscle soreness, creatine kinase activity (CK), maximal voluntary contraction (leg-extensors) (MVC), static-squat jumps (SSJ), counter-movement jumps (CMJ), maximal rowing power strokes (PS) and a 2,000 m rowing ergometer time-trial (2,000 m) with accompanying respiratory-exchange and electromyography (EMG) analysis...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149353/the-relationship-between-the-lower-body-muscular-profile-and-swimming-start-performance
#15
Amador García-Ramos, Katja Tomazin, Belén Feriche, Vojko Strojnik, Blanca de la Fuente, Javier Argüelles-Cienfuegos, Boro Strumbelj, Igor Štirn
This study aimed to examine the correlation of different dry land strength and power tests with swimming start performance. Twenty international level female swimmers (age 15.3 ± 1.6 years, FINA point score 709.6 ± 71.1) performed the track freestyle start. Additionally, dry land tests were conducted: a) squat (SJ) and countermovement jumps (CMJ), b) squat jumps with additional resistance equivalent to 25, 50, 75 and 100% of swimmers' body weight [BW]), and c) leg extension and leg flexion maximal voluntary isometric contractions...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28146030/strength-and-conditioning-practices-in-adolescent-rugby-players-relationship-with-changes-in-physical-qualities
#16
Jonathon J S Weakley, Kevin Till, Joshua Darrall-Jones, Gregory A B Roe, Padraic J Phibbs, Dale Read, Ben L Jones
Adolescent rugby players benefit from the implementation of resistance training. However resistance training practices and how they influence short-term physical change is unknown. Therefore the purpose of this study was to quantify resistance training practices, evaluate physical development, and relate these changes to resistance training variables across 12-weeks in adolescent rugby union players. Thirty-five male adolescent rugby union players participated in the study with subjects completing an anthropometric and physical testing battery pre- and post- a 12-week in-season mesocycle...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28125544/acute-effect-of-countermovement-jumping-on-throwing-performance-in-track-and-field-athletes-during-competition
#17
Giorgos P Karampatsos, Panagiotis G Korfiatis, Nikolaos D Zaras, Giorgos V Georgiadis, Gerasimos D Terzis
Karampatsos, GP, Korfiatis, PG, Zaras, ND, Georgiadis, GV, and Terzis, GD. Acute effect of countermovement jumping on throwing performance in track and field athletes during competition. J Strength Cond Res 32(1): 359-364, 2017-The purpose of the study was to investigate whether performing 3 consecutive countermovement jumps (CMJs) just before an attempt enhances performance in track and field throwers during competition. Twelve shot putters, 8 hammer throwers, 9 discus throwers, and 3 javelin throwers of both sexes participated in the study...
February 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28114431/jump-squat-and-half-squat-exercises-selective-influences-on-speed-power-performance-of-elite-rugby-sevens-players
#18
Irineu Loturco, Lucas A Pereira, José E Moraes, Katia Kitamura, César C Cal Abad, Ronaldo Kobal, Fábio Y Nakamura
The aim of this study was to evaluate the relation between the maximum mean propulsive power (MPP) obtained in the loaded jump squat (JS) and half squat (HS) exercises and functional performances in vertical jumps, 40 m linear speed (VEL) and change-of-direction (COD) tests, using the median split technique. Twenty-two male rugby sevens players from the Brazilian National Olympic Team (Rio-2016) performed vertical jumping tests (squat and countermovement jumps [SJ and CMJ]), JS and HS exercises, COD speed test and sprinting velocity in 40 m, in this order...
2017: PloS One
https://www.readbyqxmd.com/read/28095108/the-relationship-between-2d-knee-valgus-angle-during-single-leg-squat-single-leg-land-and-drop-jump-screening-tests
#19
Allan Munro, Lee Herrington, Paul Comfort
CONTEXT: Anterior Cruciate Ligament (ACL) and Patellofemoral Joint (PFJ) injuries are a significant problem among female athletes. A number of screening tasks have been used in the literature to identify those at greatest risk of injury. To date, no study has examined the relationship in two-dimensional (2D) knee valgus between common screening tasks to determine whether individuals exhibit similar movement patterns across tasks. OBJECTIVE: to establish whether frontal plane projection angle (FPPA) during the single leg squat (SLS), single leg land (SLL) and drop jump (DJ) are related...
January 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28031767/mechanical-differences-between-barbell-and-body-optimum-power-loads-in-the-jump-squat-exercise
#20
Irineu Loturco, Lucas A Pereira, Vinicius Zanetti, Katia Kitamura, César C Cal Abad, Ronaldo Kobal, Fabio Y Nakamura
This study compared the values of bar-peak force (PFBar) and power (PPBar), body-peak force (PFBody) and power (PPBody) and bar-mean propulsive power (MPPBar) in different jump-squat (JS) conditions: unloaded condition (UC); bar-loaded condition (BLC) and optimum bar-MPP condition (OBC). Twenty-five soccer players performed the JS using a bar with negligible mass (UC), using the Smith-machine bar (BLC) and using the load capable of maximizing the bar-MPP (OBC). The PFBody was significantly higher in the UC (2847...
December 1, 2016: Journal of Human Kinetics
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