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Strength, conditioning, plyometrics

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https://www.readbyqxmd.com/read/28933713/adaptations-associated-with-an-after-school-strength-and-conditioning-program-in-middle-school-aged-boys-a-quasi-experimental-design
#1
Brennan J Thompson, Matt S Stock, Jacob A Mota, Alexander S Drusch, Ryan N DeFranco, Tyler R Cook, Matthew A Hamm
Thompson, BJ, Stock, MS, Mota, JA, Drusch, AS, DeFranco, RN, Cook, TR, and Hamm, MA. Adaptations associated with an after-school strength and conditioning program in middle-school aged boys: a quasi-experimental design. J Strength Cond Res 31(10): 2840-2851, 2017-High-intensity strength and conditioning programs aimed at improving youth performance are becoming increasingly prevalent. The purpose of this study was to investigate the effects of a 16-week after-school strength and conditioning program on performance and body composition in middle-school-aged boys...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930932/complex-training-the-effect-of-exercise-selection-and-training-status-on-postactivation-potentiation-in-rugby-league-players
#2
David J Scott, Massimiliano Ditroilo, Phil A Marshall
Scott, DJ, Ditroilo, M, and Marshall, PA. Complex training: the effect of exercise selection and training status on postactivation potentiation in rugby league players. J Strength Cond Res 31(10): 2694-2703, 2017-This study compared the postactivation potentiation (PAP) response of the hex bar deadlift (HBD) and back squat (BS) exercises. The PAP response between different levels of athletes was also compared. Ten professional and 10 amateur rugby league players performed 2 experimental sessions. Participants performed a countermovement jump (CMJ) before and 2, 4, 6, 8, 10, 12, 14, and 16 minutes after a conditioning activity (CA) that contained 1 set of 3 repetitions at 93% 1 repetition maximum of either HBD or BS...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28795003/resistance-training-for-children-and-adolescents
#3
REVIEW
Allison M Myers, Nicholas W Beam, Joseph D Fakhoury
As more children and adolescents are becoming involved in exercise and school or community based athletics, attention is turned towards proper training and conditioning to optimize performance, stimulate athletic development and ensure safety while tolerating long-term competition. Resistance training (RT) refers to the methodology of ensuring such optimal performance and safety. This is a common component of sports and physical fitness in schools and organized athletic programs around the country. RT is a physical conditioning program that involves various training techniques (e...
July 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28714743/an-alternate-test-of-tackling-ability-in-rugby-league-players
#4
Michael JAJ Speranza, Tim J Gabbett, David A Greene, Rich D Johnston, Andrew D Townshend, Brett O'Farrell
This study investigated the relationship between two tests of tackling ability, muscular strength and power in semi-professional rugby league players. Thirty-one players, 19 first grade and 12 second grade underwent tests of muscular strength (1 repetition maximum bench press, chin-up, and squat) and power (plyometric push-up and countermovement jump). Tackling ability was assessed via video analysis of under-the-ball and over-the-ball tackle drills. The first grade players had significantly greater scores in both the under-the-ball (P = 0...
July 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28662108/short-term-adaptations-following-complex-training-in-team-sports-a-meta-analysis
#5
Tomás T Freitas, Alejandro Martinez-Rodriguez, Julio Calleja-González, Pedro E Alcaraz
OBJECTIVE: The purpose of this meta-analysis was to study the short-term adaptations on sprint and vertical jump (VJ) performance following Complex Training (CT) in team-sports. CT is a resistance training method aimed at developing both strength and power, which has a direct effect on sprint and VJ. It consists on alternating heavy resistance training exercises with plyometric/power ones, set for set, on the same workout. METHODS: A search of electronic databases up to July 2016 (PubMed-MEDLINE, SPORTDiscus, Web of Knowledge) was conducted...
2017: PloS One
https://www.readbyqxmd.com/read/28368956/the-effect-of-varying-plyometric-volume-on-stretch-shortening-cycle-capability-in-collegiate-male-rugby-players
#6
Mark Jeffreys, Mark De Ste Croix, Rhodri S Lloyd, Jon L Oliver, Jonathan Hughes
The purpose of this study was to identify the effectiveness of low and high volume plyometric loads on developing stretch shortening cycle capability in collegiate rugby players. A between- group repeated measures design was used. Thirty six subjects (age 20.3 ±1.6 yrs, mass 91.63 ±10.36kg, stature 182.03 ±5.24cm) were randomly assigned to one of three groups, a control group (CG), a low volume plyometric group (LPG) or a high volume plyometric group (HPG). Data were collected from a force plate, and measures of reactive strength index (RSI) and leg stiffness were calculated from jump height, contact time and flight time...
March 25, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28229575/effects-of-a-low-volume-plyometric-training-in-anaerobic-performance-of-adolescent-athletes
#7
Ari R Assunção, Martim Bottaro, Euler A Cardoso, Daiane P Dantas da Silva, Marcelo Ferraz, Carlos A Vieira, Paulo Gentil
BACKGROUND: Parameters related to the anaerobic capacity and power may be important for the performance of many sports whose skills are related to high-intensity and short- duration efforts. Although plyometric training (PT) has been widely used in the regular strength and conditioning programs of young athletes, its effects on anaerobic performance are still controversial. Therefore, the purpose of the present study was to evaluate the effects of PT in anaerobic performance in young athletes...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28149427/effects-of-plyometric-training-on-physical-fitness-in-team-sport-athletes-a-systematic-review
#8
Maamer Slimani, Karim Chamari, Bianca Miarka, Fabricio B Del Vecchio, Foued Chéour
Plyometric training (PT) is a very popular form of physical conditioning of healthy individuals that has been extensively studied over the last decades. In this article, we critically review the available literature related to PT and its effects on physical fitness in team sport athletes. We also considered studies that combined PT with other popular training modalities (e.g. strength/sprint training). Generally, short-term PT (i.e. 2-3 sessions a week for 4-16 weeks) improves jump height, sprint and agility performances in team sport players...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27899894/moderate-load-eccentric-exercise-a-distinct-novel-training-modality
#9
REVIEW
Hans Hoppeler
Over the last 20 years a number of studies have been published using progressive eccentric exercise protocols on motorized ergometers or similar devices that allow for controlled application of eccentric loads. Exercise protocols ramp eccentric loads over an initial 3 weeks period in order to prevent muscle damage and delayed onset muscle soreness. Final training loads reach 400-500 W in rehabilitative settings and over 1200 W in elite athletes. Training is typically carried out three times per week for durations of 20-30 min...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27893479/complex-training-the-effect-of-exercise-selection-and-training-status-on-post-activation-potentiation-in-rugby-league-players
#10
David J Scott, Massimiliano Ditroilo, Phil Marshall
This study compared the post-activation potentiation (PAP) response of the hex bar deadlift (HBD) and back squat (BS) exercises. The PAP response between different levels of athletes was also compared. Ten professional and ten amateur rugby league players performed two experimental sessions. Participants performed a countermovement jump (CMJ) before and 2, 4, 6, 8, 10, 12, 14 and 16 minutes after a conditioning activity (CA) that contained 1 set of 3 repetitions at 93% 1RM of either HBD or BS. A force platform determined peak power output (PPO), force at PPO, velocity at PPO and jump height of each CMJ...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27870696/strength-and-conditioning-and-concurrent-training-practices-in-elite-rugby-union
#11
Thomas W Jones, Andrew Smith, Lindsay S Macnaughton, Duncan N French
Jones, TW, Smith, A, Macnaughton, LS, and French, DN. Strength and Conditioning and Concurrent Training Practices in Elite Rugby Union. J Strength Cond Res 30(12): 3354-3366, 2016-There is limited published research on strength and conditioning (S&C) practices in elite rugby union (RU). Information regarding testing batteries and programme design would provide valuable information to both applied practitioners and researchers investigating the influence of training interventions or preperformance strategies...
December 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27547851/effects-of-horizontal-plyometric-training-volume-on-soccer-players-performance
#12
RANDOMIZED CONTROLLED TRIAL
Javier Yanci, Asier Los Arcos, Jesús Camara, Daniel Castillo, Alberto García, Carlo Castagna
The aim of this study was to examine the dose response effect of strength and conditioning programmes, involving horizontally oriented plyometric exercises, on relevant soccer performance variables. Sixteen soccer players were randomly allocated to two 6-week plyometric training groups (G1 and G2) differing by imposed (twice a week) training volume. Post-training G1 (4.13%; d = 0.43) and G2 (2.45%; d = 0.53) moderately improved their horizontal countermovement jump performance. Significant between-group differences (p < 0...
October 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27139591/the-effects-of-plyometric-training-on-change-of-direction-ability-a-meta-analysis
#13
REVIEW
Abbas Asadi, Hamid Arazi, Warren B Young, Eduardo Sáez de Villarreal
PURPOSE: To show a clear picture about the possible variables of enhancements of change-of-direction (COD) ability using longitudinal plyometric-training (PT) studies and determine specific factors that influence the training effects. METHODS: A computerized search was performed, and 24 articles with a total of 46 effect sizes (ESs) in an experimental group and 25 ESs in a control group were reviewed to analyze the role of various factors on the impact of PT on COD performance...
July 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27125295/mechanical-parameters-and-flight-phase-characteristics-in-aquatic-plyometric-jumping
#14
Talin J Louder, Cade J Searle, Eadric Bressel
Plyometric jumping is a commonly prescribed method of training focused on the development of reactive strength and high-velocity concentric power. Literature suggests that aquatic plyometric training may be a low-impact, effective supplement to land-based training. The purpose of the present study was to quantify acute, biomechanical characteristics of the take-off and flight phase for plyometric movements performed in the water. Kinetic force platform data from 12 young, male adults were collected for counter-movement jumps performed on land and in water at two different immersion depths...
September 2016: Sports Biomechanics
https://www.readbyqxmd.com/read/26950343/physical-characteristics-underpinning-repetitive-lunging-in-fencing
#15
Anthony N Turner, Geoff Marshall, James Phillips, Angelo Noto, Conor Buttigieg, Shyam Chavda, William Downing, Nathan Atlay, Lygeri Dimitriou, Laim Kilduff
Turner, AN, Marshall, G, Phillips, J, Noto, A, Buttigieg, C, Chavda, S, Downing, W, Atlay, N, Dimitriou, L, and Kilduff, L. Physical characteristics underpinning repetitive lunging in fencing. J Strength Cond Res 30(11): 3134-3139, 2016-Given the repetitive demand to execute lunging and changes in direction within fencing, the ability to sustain these at maximal capacity is fundamental to performance. The aim of this study was threefold. First, to provide normative values for this variable referred to as repeat lunge ability (RLA) and second to identify the physical characteristics that underpin it...
November 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26839620/the-kinetic-specificity-of-plyometric-training-verbal-cues-revisited
#16
Talin Louder, Megan Bressel, Eadric Bressel
Plyometric training is a popular method utilized by strength and conditioning professionals to improve aspects of functional strength. The purpose of this study was to explore the influence of extrinsic verbal cueing on the specificity of jumping movements. Thirteen participants (age: 23.4 ± 1.9 yr, body height: 170.3 ± 15.1 cm, body mass: 70.3 ± 23.8 kg,) performed four types of jumps: a depth jump "as quickly as possible" (DJT), a depth jump "as high as possible" (DJH), a countermovement jump (CMJ), and a squat jump (SJ)...
December 22, 2015: Journal of Human Kinetics
https://www.readbyqxmd.com/read/26508319/factors-modulating-post-activation-potentiation-of-jump-sprint-throw-and-upper-body-ballistic-performances-a-systematic-review-with-meta-analysis
#17
REVIEW
Laurent B Seitz, G Gregory Haff
BACKGROUND: Although post-activation potentiation (PAP) has been extensively examined following the completion of a conditioning activity (CA), the precise effects on subsequent jump, sprint, throw, and upper-body ballistic performances and the factors modulating these effects have yet to be determined. Moreover, weaker and stronger individuals seem to exhibit different PAP responses; however, how they respond to the different components of a strength-power-potentiation complex remains to be elucidated...
February 2016: Sports Medicine
https://www.readbyqxmd.com/read/26492101/effect-of-different-sprint-training-methods-on-sprint-performance-over-various-distances-a-brief-review
#18
REVIEW
Michael C Rumpf, Robert G Lockie, John B Cronin, Farzad Jalilvand
Linear sprinting speed is an essential physical quality for many athletes. There are a number of different training modalities that can be used to improve sprint performance. Strength and conditioning coaches must select the most appropriate modalities for their athletes, taking into consideration the sprint distances that typically occur during competition. The study purpose was to perform a brief review as to the effect of specific (free sprinting; resisted sprinting by sleds, bands, or incline running; assisted sprinting with a towing device or a downhill slope), nonspecific (resistance and plyometric training), and combined (a combination of specific and nonspecific) training methods on different sprint distances (0-10, 0-20, 0-30, and 31+ m)...
2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26133514/short-term-periodization-models-effects-on-strength-and-speed-strength-performance
#19
REVIEW
Hagen Hartmann, Klaus Wirth, Michael Keiner, Christoph Mickel, Andre Sander, Elena Szilvas
Dividing training objectives into consecutive phases to gain morphological adaptations (hypertrophy phase) and neural adaptations (strength and power phases) is called strength-power periodization (SPP). These phases differ in program variables (volume, intensity, and exercise choice or type) and use stepwise intensity progression and concomitant decreasing volume, converging to peak intensity (peaking phase). Undulating periodization strategies rotate these program variables in a bi-weekly, weekly, or daily fashion...
October 2015: Sports Medicine
https://www.readbyqxmd.com/read/26053415/the-influence-of-minimalist-footwear-on-knee-and-ankle-load-during-depth-jumping
#20
J Sinclair, S J Hobbs, J Selfe
Plyometric training is used by athletes to promote strength and explosive power. However plyometric activities such as depth jumping are associated with a high incidence of injuries. This study examined the influence of minimalist and conventional footwear on the loads experienced by the patellofemoral joint and Achilles tendon. Patellofemoral and Achilles tendon forces were obtained from ten male participants using an eight-camera 3D motion capture system and force platform data as they completed depth jumps in both footwear conditions...
2015: Research in Sports Medicine
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