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Power Strength Speed Intensity

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https://www.readbyqxmd.com/read/28713281/effectiveness-of-traditional-strength-vs-power-training-on-muscle-strength-power-and-speed-with-youth-a-systematic-review-and-meta-analysis
#1
REVIEW
David G Behm, James D Young, Joseph H D Whitten, Jonathan C Reid, Patrick J Quigley, Jonathan Low, Yimeng Li, Camila D Lima, Daniel D Hodgson, Anis Chaouachi, Olaf Prieske, Urs Granacher
Numerous national associations and multiple reviews have documented the safety and efficacy of strength training for children and adolescents. The literature highlights the significant training-induced increases in strength associated with youth strength training. However, the effectiveness of youth strength training programs to improve power measures is not as clear. This discrepancy may be related to training and testing specificity. Most prior youth strength training programs emphasized lower intensity resistance with relatively slow movements...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28681596/high-intensity-interval-training-combined-with-resistance-training-improves-physiological-capacities-strength-and-quality-of-life-in-multiple-sclerosis-patients-a-pilot-study
#2
Pierre Zaenker, Fabrice Favret, Evelyne Lonsdorfer, Guillaume Muff, Jérôme DE Seze, Marie-Eve Isner-Horobeti
BACKGROUND: Numerous studies have shown that mild-to-moderate intensity or resistance exercise training improves physical capacities such as, peak oxygen consumption, maximal tolerated power and strength in multiple sclerosis patients. However, few studies have evaluated the effects of high intensity interval training associated to with resistance training. Only few studies have analysed difference between men and women before and after combined training. Moreover, the evaluation of exercise between ambulatory multiple sclerosis patients without disability (EDSS 0- 3) and patients with disabilities (EDSS 3...
July 5, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28658074/effect-of-physical-and-psychosocial-interventions-on-hormone-and-performance-outcomes-in-professional-rugby-union-players-a-systematic-review
#3
Joshua Strahorn, Benjamin G Serpell, Andrew McKune, Kate L Pumpa
This systematic review investigates the acute effects of physical or psychosocial interventions on testosterone and cortisol responses in elite male rugby union players, and the subsequent association with physical performance areas (e.g. strength, power, sprint performance) or key performance indicators (e.g. coach-identified skills). Medline (via EBSCO), SPORTDiscus, Web of Science, Informit, Proquest, Cochrane and Scopus were searched for relevant articles. Nine articles met the inclusion criteria, with six articles examining the effect of speed, strength or power training, and the remaining three psychosocial interventions...
June 22, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28607221/vastus-lateralis-and-rectus-femoris-echo-intensity-fail-to-reflect-knee-extensor-specific-tension-in-middle-school-boys
#4
Jacob Mota, Matt S Stock, Brennan Thompson
The potential dissociation between muscle strength and size has led to interest in the ability to assess muscle quality across the lifespan. We examined the association between echo intensity and specific tension in middle-school boys. Twenty-five boys participated in this study. Sixteen (mean ± SD age = 12 ± 1 years) engaged in a 16-week after-school strength and conditioning program. Nine boys (12 ± 1 years) served as controls. The program involved two, 90 minute sessions per week of lower-body speed, power, and resistance training...
June 13, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28538318/do-fencers-require-a-weapon-specific-approach-to-strength-and-conditioning-training
#5
Anthony N Turner, Chris J Bishop, Jon A Cree, Michael L Edwards, Shyam Chavda, Paul J Read, David M J Kirby
Turner, AN, Bishop, CJ, Cree, JA, Edwards, ML, Chavda, S, Read, PJ, and Kirby, DMJ. Do fencers require a weapon-specific approach to strength and conditioning training? J Strength Cond Res 31(6): 1662-1668, 2017-There are 3 types of weapons used in Olympic fencing: the épée, foil, and sabre. The aim of this study was to determine if fencers exhibited different physical characteristics across weapons. Seventy-nine male (n = 46) and female (n = 33) national standard fencers took part in this study. Fencers from each weapon (male and female), i...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28482762/power-training-in-chronic-stroke-individuals-differences-between-responders-and-nonresponders
#6
Stacey E Aaron, Jennifer L Hunnicutt, Aaron E Embry, Mark G Bowden, Chris M Gregory
BACKGROUND: Lower extremity muscle weakness is a primary contributor to post-stroke dysfunction. Resistance training is an effective treatment for hemiparetic weakness and improves walking performance. Post-stroke subject characteristics that do or do not improve walking speed following resistance training are unknown. OBJECTIVE: The purpose of this paper was to describe baseline characteristics, as well as responses to training, associated with achieving a minimal clinically important difference (MCID) in walking speed (≥0...
May 8, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28387540/n-3-fatty-acid-supplementation-during-4-weeks-of-training-leads-to-improved-anaerobic-endurance-capacity-but-not-maximal-strength-speed-or-power-in-soccer-players
#7
Leyre Gravina, Frankie F Brown, Lee Alexander, James Dick, Gordon Bell, Oliver C Witard, Stuart D R Galloway
Omega-3 fatty acid (n-3 FA) supplementation could promote adaptation to soccer-specific training. We examined the impact of a 4-week period of n-3 FA supplementation during training on adaptations in 1RM knee extensor strength, 20-m sprint speed, vertical jump power, and anaerobic endurance capacity (Yo-Yo test) in competitive soccer players. Twenty six soccer players were randomly assigned to one of two groups: n-3 FA supplementation (n-3 FA; n = 13) or placebo (n = 13). Both groups performed two experimental trial days...
August 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28338375/an-updated-review-of-the-applied-physiology-of-american-collegiate-football-the-physical-demands-strength-conditioning-nutritional-considerations-and-injury-characteristics-of-america-s-favourite-game
#8
Hugh H K Fullagar, Robert McCunn, Andrew Murray
Whilst there are various avenues for performance improvement within collegiate American football (AF), there is no comprehensive evaluation of the collective array of resources around performance, physical conditioning and injury and training/game characteristics to guide future research and inform practitioners. Accordingly, the aim of the present review was to provide a current examination of these areas within collegiate AF. Recent studies show that there is a wide range of body compositions and strength characteristics between players, which appear to be influenced by playing position, level of play, training history/programming and time of season...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28240711/a-self-paced-team-sport-match-simulation-results-in-reductions-in-voluntary-activation-and-modifications-to-biological-perceptual-and-performance-measures-at-half-time-and-for-up-to-96-hours-post-match
#9
Paul Tofari, Justin Kemp, Stuart Cormack
Assessing responses to soccer match-play is limited by match variability or unrealistic simulations. To address this, the biological, perceptual, and performance response were assessed using a self-paced, simulated soccer match protocol using a non-motorized treadmill. Twelve male team-sport athletes performed the 90-min simulation. Match activity; quadriceps twitch interpolation [voluntary activation (%VA) and potentiated twitch (POT)]; biochemical markers; strength and power performance; rating of perceived exertion (RPE) and self-report wellness were collected pre-, half-time, post-, and 2, 24, 48, 72 and 96-h post-match...
February 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28008239/effects-of-different-doses-of-high-speed-resistance-training-on-physical-performance-and-quality-of-life-in-older-women-a-randomized-controlled-trial
#10
Rodrigo Ramirez-Campillo, Daniela Diaz, Cristian Martinez-Salazar, Pablo Valdés-Badilla, Pedro Delgado-Floody, Guillermo Méndez-Rebolledo, Rodrigo Cañas-Jamet, Carlos Cristi-Montero, Antonio García-Hermoso, Carlos Celis-Morales, Jason Moran, Thomas W Buford, Leocadio Rodriguez-Mañas, Alicia M Alonso-Martinez, Mikel Izquierdo
OBJECTIVE: This study aimed to compare the effects of two frequencies of high-speed resistance training (HSRT) on physical performance and quality of life of older women. METHODS: A total of 24 older women participated in a 12-week HSRT program composed of either two or three sessions/week (equated for volume and intensity). Women were randomized into three arms: a control group (CG, n=8), a resistance training group performing two sessions/week (RT2, n=8), and a resistance training group performing three sessions/week (RT3, n=8)...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27977854/effects-of-high-intensity-physical-training-on-muscle-fiber-characteristics-in-poststroke-patients
#11
Jesper L Andersen, Jørgen R Jørgensen, Peter Zeeman, Daniel T Bech-Pedersen, Jane Sørensen, Ignacio Ara, Lars L Andersen
INTRODUCTION: Stroke is a leading cause of disability worldwide. High-intensity physical training can improve muscle strength and gait speed, but adaptive mechanisms at the muscle cellular level are largely unknown. METHODS: Outpatients with poststroke hemiparesis participated in a 3-month rehabilitation program combining high-intensity strength and body-weight supported treadmill-training. Biopsies sampled bilaterally from vastus lateralis muscles, before, after, and at 1-year follow-up after intervention, were analyzed for fiber size, type, and capillarization...
December 15, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27806011/do-fencers-require-a-weapon-specific-approach-to-strength-and-conditioning-training
#12
Anthony N Turner, Chris Bishop, Jon Cree, Michael Edwards, Shyam Chavda, Paul Read, David Kirby
There are three types of weapon used in Olympic fencing: the épée, foil, and sabre. The aim of this study was to determine if fencers exhibited different physical characteristics across weapons. Seventy-nine male (n = 46) and female (n = 33) national standard fencers took part in this study. Fencers from each weapon (male and female), i.e., épée (n = 19 and 10), foil (n = 22 and 14), and sabre (n = 13 and 10) were (mean ± SD) 15.9 ± 0.7 years of age, 178.5 ± 7.9 cm tall, 67.4 ± 12.2 kg in mass and had 6...
October 26, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27798634/influence-of-fatigue-on-tackling-ability-in-rugby-league-players-role-of-muscular-strength-endurance-and-aerobic-qualities
#13
Tim J Gabbett
This study investigated the influence of repeated high-intensity effort exercise on tackling ability in rugby league players, and determined the relationship between physical qualities and tackling ability under fatigued conditions in these athletes. Eleven semi-professional rugby league players underwent measurements of speed (10 m and 40 m sprint), upper-body strength (4 repetition maximum [RM] bench press and weighted chin-up), upper-body muscular endurance (body mass maximum repetition chin-up, body mass maximum repetition dips), lower-body strength (4RM squat), and estimated maximal aerobic power (multi-stage fitness test)...
2016: PloS One
https://www.readbyqxmd.com/read/27626795/effects-of-low-intensity-endurance-and-resistance-training-on-mobility-in-chronic-stroke-survivors-a-pilot-randomized-controlled-study
#14
Nicola Lamberti, Sofia Straudi, Anna Maria Malagoni, Matteo Argirò, Michele Felisatti, Eleonora Nardini, Christel Zambon, Nino Basaglia, Fabio Manfredini
BACKGROUND: Chronic stroke survivors are exposed to long-term disability and physical deconditioning, effects that may impact their independence and quality of life. Community-based programs optimizing the dose of exercise therapy that are simultaneously low risk and able to achieve high adherence should be identified. AIM: We tested the hypothesis that an 8-week, community-based, progressive mixed endurance-resistance exercise program at lower cardiovascular and muscular load yielded more mobility benefits than a higher-intensity program in chronic stroke survivors...
April 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27501286/effects-of-moderators-on-physical-training-programs-a-bayesian-approach
#15
Rheba E Vetter, Han Yu, Alice K Foose
Vetter, RE, Yu, H, and Foose, AK. Effects of moderators on physical training programs: a Bayesian approach. J Strength Cond Res 31(7): 1868-1878, 2017-Creating an optimal physical training program is an important focus in sport and exercise research. The purpose of this research was to examine how different moderators (age, ability level, training weeks, training frequencies, and intensity) impacted the physiological outcomes of specific exercise training programs (muscular strength, speed, power, and cardiorespiratory) using the Bayesian method...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27398916/the-physical-and-athletic-performance-characteristics-of-division-i-collegiate-female-soccer-players-by-position
#16
Robert G Lockie, Matthew R Moreno, Adrina Lazar, Ashley J Orjalo, Dominic V Giuliano, Fabrice G Risso, DeShaun L Davis, Jeff B Crelling, John R Lockwood, Farzad Jalilvand
Playing positions in soccer can exhibit different movement demands during a match, contributing to variations in physical and performance characteristics. NCAA soccer features different substitution rules when compared to FIFA-sanctioned matches, which could influence each players' characteristics. Therefore, this study determined the athletic performance characteristics of Division I female soccer players. Twenty-six players (3 goalkeepers; 8 defenders; 10 midfielders; 5 forwards) from the same squad completed assessments of: lower-body power (vertical and standing broad jump); linear (0-5, 0-10, 0-30 meter [m] sprint intervals) and change-of-direction (pro-agility shuttle; Arrowhead change-of-direction speed test) speed; and soccer-specific fitness (Yo-Yo Intermittent Recovery Test [YYIRT] levels 1 and 2)...
July 7, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27278256/differences-in-strength-and-speed-demands-between-4v4-and-8v8-small-sided-football-games
#17
COMPARATIVE STUDY
António Natal Campos Rebelo, Pedro Silva, Vincenzo Rago, Daniel Barreira, Peter Krustrup
The aims of this study were (i) to characterise the acceleration demands of two different formats of small-sided game (SSG), i.e., 4v4 + goalkeepers (4v4 + GK) and 8v8 + goalkeepers (8v8 + GK); (ii) to analyse the correlation between performance in power-based tests and acceleration-based physical loading during the two different SSG formats and (iii) to analyse the neuromuscular-induced fatigue. Eighteen adult male footballers participated in the study (20.7 ± 1.0 years, 178 ± 5 cm and 71.4 ± 2...
December 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/26840443/genetic-variability-among-power-athletes-the-stronger-vs-the-faster
#18
Sigal Ben-Zaken, Alon Eliakim, Dan Nemet, Yoav Meckel
Athletic events can be divided into "aerobic-type event" or "anaerobic-type event" based on energetic usage. Power, speed, and strength, also used to specify sports subtypes. Weightlifters, sprinters, and jumpers feature high-intensity efforts lasting few seconds. However, their performance requires different proportions of power, speed, and strength. The aim of the current study was to examine genetic differences between subtypes of anaerobic athletes in 3 genetic variants: ACTN3 R577X, which is associated with muscle contractions, AGT Met235Thr which is associated with muscle growth, and PPARD T/C, which is associated with aerobic capacity...
January 29, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26557200/effects-of-traditional-versus-horizontal-inertial-flywheel-power-training-on-common-sport-related-tasks
#19
Moisés de Hoyo, Borja Sañudo, Luis Carrasco, Sergio Domínguez-Cobo, Jesús Mateo-Cortes, María Monserrat Cadenas-Sánchez, Sophia Nimphius
This study aimed to analyze the effects of power training using traditional vertical resistance exercises versus direction specific horizontal inertial flywheel training on performance in common sport-related tasks. Twenty-three healthy and physically active males (age: 22.29 ± 2.45 years) volunteered to participate in this study. Participants were allocated into either the traditional training (TT) group where the half squat exercise on a smith machine was applied or the horizontal flywheel training (HFT) group performing the front step exercise with an inertial flywheel...
September 29, 2015: Journal of Human Kinetics
https://www.readbyqxmd.com/read/26284158/strength-training-in-soccer-with-a-specific-focus-on-highly-trained-players
#20
João R Silva, George P Nassis, Antonio Rebelo
BACKGROUND: Data concerning the physical demands of soccer (e.g., activity pattern) suggest that a high level of performance requires well-developed neuromuscular function (NF). Proficient NF may be relevant to maintain and/or increase players' short- (intense periods of soccer-specific activity; accelerations, decelerations, and sprinting) and long-term performance during a match and throughout the season. OBJECTIVE: This review examines the extent to which distinct modes of strength training improve soccer players' performance, as well as the effects of concurrent strength and endurance training on the physical capacity of players...
2015: Sports Medicine—Open
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