Download or read book RELATIONSHIP BETWEEN RELATIVE PEAK POWER RATE OF FORCE DEVELOPMENT AND JUMP HEIGHT IN REPEATED COUNTERMOVEMENT JUMPS written by Samuel Reuben Leahey and published by . This book was released on 2012 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT:
Download or read book The Acute Effect of Different Rest Intervals on Countermovement Jump Variables in Experienced Jumpers written by Patrick Dabrowski and published by . This book was released on 2021 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of different rest intervals (1, 3, and 5 minutes) on countermovement jump variables (jump height, peak power, and rate of force development) was assessed in experienced collegiate jumpers (n = 14; 20.42 ± 1.55 years; 64.74 ± 10.10 kg). The participants completed four testing sessions in which they completed maximal countermovement jumps separated by a randomized rest interval (1, 3, and 5 minutes). A factorial repeated measures analysis of variance (RMANOVA) demonstrated a statistically significant mean difference when comparing the change in jump height from jump 1 to jump 2, versus the change in jump height from jump 3 to jump 4 (p = 0.044). Furthermore, a statistically significant mean difference was shown comparing the change in peak power (p = 0.049) from jump 1 to jump 2 versus jump 3 to jump 4. Based on a one-way repeated measures analysis of variance, a statistically significant mean difference (p = 0.043) for the total change in jump height (jumps 1-4) was found comparing the one minute versus the three-minute rest intervals. A statistically significant mean difference (p = 0.021) was found comparing the total change in peak power (jumps 1-4) for the one-minute rest interval versus the five-minute rest interval. Based on the results of the study, varying the rest intervals had a statistically significant impact on jump height and peak power.
Download or read book Developing Power written by NSCA -National Strength & Conditioning Association and published by Human Kinetics. This book was released on 2024-08-30 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: You only need a glimpse of a power forward grabbing a rebound or running back changing direction and turning up field to realize the importance of power for optimal athletic performance. Developing Power, Second Edition, is the definitive resource on training for power so you can sprint, jump, throw, change direction, or strike with explosiveness. Written by the National Strength and Conditioning Association, Developing Power provides the latest research-based recommendations for assessing and training for muscular power. You’ll learn how to apply assessment protocols for jumps, throws, and ballistic exercises and how to apply the results to design programs to address specific athletic needs. In addition, you will find the following: Power training guidelines for 19 sports, including basketball, football, soccer, lacrosse, and mixed martial arts Step-by-step instructions and detailed photos for 84 upper body, lower body, total body, and anatomical core exercises Guidance on implementing progressions, regressions, and variations for 64 exercises Multiple training methods, such as ballistic training, weightlifting exercises, and plyometrics Sample programs for 9 team sports and 10 individual sports, including basketball, soccer, football (American), volleyball, baseball, track and field, swimming, wrestling, golf, rowing, boxing, and more With contributions from 17 of the top names in sport training, science, and conditioning, Developing Power is the authoritative resource on power and performance. It is a must-have resource for unlocking maximum power development! Earn continuing education credits/units! A continuing education exam that uses this book is also available. It may be purchased separately or as part of a package that includes both the book and exam.
Download or read book The Relationship Between Isometric Force Characteristics and Vertical Jump Height Under Various Loading Conditions written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Purpose: to examine the relationship between isometric force characteristics (IF) and vertical jump height under various loading conditions. Sixty-three collegiate athletes participated in this investigation. Athletes performed static jump (SJ) and countermovement jumps (CMJ) with 0 and 20kg, and isometric mid-thigh pulls on a force plate. Force-time curve analysis was conducted for each isometric pull and jump to determine force related characteristics. Jump height (JH) was derived from flight time. Isometric forces were normalized using allometric scaling: absolute force/ (body mass(kg)0.67)= IPFa. Results: There was a strong positive correlation between isometric peak force and isometric rate of force development (IRFD). Stronger athletes had smaller decrements in jump height with additional loading. Conclusion: The ability to produce higher peak and instantaneous forces and IRFD is related to JH and smaller differences between weighted and unweighted jumps. A weighted jump may be a practical method of assessing relative strength levels.
Download or read book Sport and Exercise Science written by Dean Sewell and published by Routledge. This book was released on 2013-02-01 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sport and Exercise Science: An Introduction provides a broad-based foundation in the major areas that underpin the scientific study of sport and exercise science, thus helping undergraduate students to develop a sound understanding of human anatomy, physiology, nutrition, metabolism, biomechanics and psychology related to sport, exercise and health. It includes a range of useful features in every chapter, including clear explanations of key concepts, colour diagrams and photographs, activities and summaries to reinforce understanding, and on-line support materials for lecturers such as question and image banks. This is the essential companion text for any student studying sport and exercise science at degree level.
Download or read book Effects of Static Countermovement and Drop Jump Performance on Power and Rate of Force Development in 6 16 Year Old Boys written by Lacey E. Jahn and published by . This book was released on 2018 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to examine the effects of static, counter movement, and drop jump performance on peak power and peak rate of force development (RFD). The secondary purpose of this study was to examine the relationship between vertical jump outcomes, maturity offset, and muscle cress-sectional area (CSA). During a single testing session, twenty-one young males (mean age ± SD = 12.1 ± 2.4 yrs) performed maximal vertical jumps which included: static jump (SJ), counter movement jump (CMJ), and drop jump from 8 (DJ8), 12 (DJ12) and 16 (DJ16) inches in a randomized order. Peak power increased from SJ to CMJ (p ≤ 0.001) but showed no subsequent increases among CMJ, DJ8, DJ12, or DJ16. RFD and force showed no increase from SJ to CMJ (p > 0.05), an increase from CMJ to DJ8 (p ≤ 0.001), but no further increases from DJ8 to DJ12 to DJ16 (p > 0.05). Eccentric impulse increased systematically from SJ to DJ16 (p ≤ 0.001). Concentric impulse increased from SJ to CMJ (p ≤ 0.001), decreased from CMJ to DJ8 (p = 0.003), then showed no change from DJ8 to DJ12 to DJ16 (p > 0.05). Stepwise regression indicated that the increase in power from SJ to CMJ was best explained by height (R2 = 0.517). These findings suggest CMJ is the optimal jump test for maximizing peak power and concentric work, while minimizing eccentric overload in male of a similar age to this study. Additionally, growth and development may influence stretch-shortening cycle (SSC) utilization. Future studies are needed to examine the influence of PHV maturity offset and increased muscle CSA on SSC utilization in this model of incremental eccentric pre-loading during vertical jump tests.
Download or read book Neuromechanics of Human Movement written by Roger M. Enoka and published by Human Kinetics. This book was released on 2024-04-26 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuromechanics of Human Movement, Sixth Edition, draws on the disciplines of neurophysiology and physics to explore how the nervous system controls the actions of muscles to produce human motion in relation to biomechanical principles
Download or read book Science and Practice of Strength Training written by Vladimir M. Zatsiorsky and published by Human Kinetics Publishers. This book was released on 2020-04-09 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Practice of Strength Training addresses the complexity of strength training programs while providing advice in customizing programs for athletes and other populations. It covers velocity training, intensity, timing, exercises, injury prevention, overtraining, and athlete monitoring.
Download or read book NSCA s Essentials of Sport Science written by NSCA -National Strength & Conditioning Association and published by Human Kinetics Publishers. This book was released on 2021-02-19 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSCA's Essentials of Sport Science provides the most contemporary and comprehensive overview of the field of sport science and the role of the sport scientist. It is a primary preparation resource for the Certified Performance and Sport Scientist (CPSS) certification exam.
Download or read book Multidirectional Speed in Sport written by Paul A. Jones and published by Taylor & Francis. This book was released on 2023-06-30 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: During field- and court-based sports, players are continually required to perceive their environment within a match and select and perform the most appropriate action to achieve their immediate goal within that match instance. This ability is commonly known as agility, considered a vital quality in such sports and may incorporate a variety of locomotion and instantaneous actions. Multidirectional speed is a global term to describe the competency and capacity to perform such actions: accelerate, decelerate, change direction, and ultimately maintain speed in multiple directions and movements within the context of sports-specific scenarios, encompassing agility, speed, and many other related qualities. Multidirectional speed in sport depends on a multitude of factors, including perceptual-cognitive abilities, physical qualities, and the technical ability to perform the previously mentioned actions. Multidirectional Speed in Sport: Research to Application reviews the science of multidirectional speed and translates this information into real-world application in order to provide a resource for practitioners to develop multidirectional speed with athletes, bringing together knowledge from a wealth of world-leading researchers and applied practitioners in the area of speed and agility to provide a complete resource to assist practitioners in designing effective multidirectional speed development programmes. This text is critical reading for undergraduate and graduate sports science students, all individuals involved in training athletes (e.g. coaches, physiotherapists, athletic trainers), and researchers in the field of sports science and sports medicine.
Download or read book Principles and Practice of Resistance Training written by Michael H. Stone and published by Human Kinetics. This book was released on 2007 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at strength and conditioning specialists, health and fitness professionals, personal trainers and exercise scientists, this research-based book details the physiological and biomechanical aspects of designing resistance training programmes for improved power, strength and performance in athletes.
Download or read book The Science of Rugby written by Craig Twist and published by Routledge. This book was released on 2014-11-20 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science of Rugby is the only book to examine the scientific principles underpinning the preparation of rugby players for high performance. Drawing on the very latest scientific evidence, and covering both codes (union and league), the book explores every aspect of preparation and performance that introduces best practice by leading coaches and sports science professionals from around the rugby world. The book covers key topics such as: Physical preparation and conditioning Strength and power training Monitoring match and training demands Match-day strategies for enhancing physical and technical performance Management of fatigue and recovery Training and playing in the heat Travel and jet lag Injury epidemiology Psychological preparation Performance analysis Biomechanics Nutrition Talent identification and youth development The book also incorporates several case-studies to demonstrate how scientific principles have been applied in practice. No other book bridges the gap between theory and applied practice in rugby, from grass roots to elite international standard, and therefore this is essential reading for any student, researcher, sport scientist, coach, physiotherapist or clinician with an interest in the game.
Download or read book Football Biomechanics written by Hiroyuki Nunome and published by Routledge. This book was released on 2017-10-31 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Football Biomechanics explores the latest knowledge of this core discipline in sport science across all codes of the sport. Encompassing a variety of styles, including original scientific studies, syntheses of the latest research, and position statements, the text offers readers the most up-to-date and comprehensive reference of the underlying mechanics of high-level football performance. The book is divided into five parts, covering fundamental football actions, the biomechanics of direct free kicks, footwear, biomechanical considerations in skill acquisition and training, and artificial turf. It bridges the gap between theory and practice in a variety of key areas such as: ball kicking mechanics (in soccer and other football codes) ball impact dynamics aerodynamics of ball flight special techniques (such as the ‘knuckle ball shot’) by world-famous players the efficacy and development of footwear biomechanical and motor performance differences between female and male soccer players artificial turf from an injury and a performance perspective. Made up of contributions from leading experts from around the world, Football Biomechanics is a vital resource for researchers and practitioners working in all football codes, and useful applied reading for any sport science student with an interest in football.
Download or read book Effect of Increasing External Loads on Countermovement Jump Landing Kinetics Between NCAA DI Women s Soccer and Gymnastics on Land Vs in Water written by Paul Bryan Beachem IV and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to compare the effect of differing loads on landing kinetics on land, and in aquatic conditions. Twenty four NCAA DI athletes volunteered for this study twelve female soccer players and twelve female gymnasts. Participants performed three jumps with four differing external loads in both land and aquatic environments. External loads were body weight (BW), BW*1.1, BW*1.2, BW*1.3 and applied via a weighted vest. All external loads for both conditions were added based upon participants BW on land. Kinetic measures were peak force, rate of force development, and impulse of the landing phase of the plyometric countermovement jump. Data was collected via waterproof force-plate. Results were analyzed using a three-way repeated measures 2x2x4 ANOVA. There was no significant difference in any result based on sport. Aquatic environments reduced peak impact by 50.7%, rate of force development by 53.5%, and impulse by 38.6%. Increasing external load did not produce significant differences for impact peak force or rate of force development, but did produce significantly higher impact impulse for land based jumps (p=0.000). In an aquatic environment increasing load produced significant differences in all three kinetic values. The results for environment agree with previous studies. The results for loaded aquatic countermovement jumps in this study show increased landing kinetics over unloaded aquatic jumps, and decreased landing kinetics over unloaded land jumps. Adding external load in aquatic environments may utilized to increase landing kinetics, while remaining under kinetic values of land based plyometrics.
Download or read book Neuromuscular Fatigue written by A. J. Sargeant and published by Royal Netherlands Academy of. This book was released on 1993-01-01 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paperback. Neuromuscular fatigue is a phenomenon of great importance in everyday life as well as being of theoretical and clinical significance. Eleven years ago there was a seminal symposium on muscle fatigue held in London. The published proceedings (Ciba Foundation Symposium 82 - Human muscle fatigue: physiological mechanisms, Pitman, London, 1981) served as an important 'state-of-the-art' reference. In the intervening period there have been many developments with respect to our understanding of fatigue of the motor output, including processes located in the skeletal muscle fibres themselves as well as problems related to various aspects of (moto) neural muscle control. However, there are still uncertainties and important questions which remain unanswered. It was felt that the time was ripe to attempt a renewed synthesis by bringing together international experts from a range of complementary research areas. In this way it was hoped that attention co
Download or read book The Effects of an Isometric Quarter Squat on Countermovement Jump Performance written by Mitchell Dropp and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the study was to determine if an isometric quarter squat was sufficient to elicit postactivation potentiation (PAP) in a countermovement jump (CMJ) for recreationally trained individuals (n = 22). The isometric quarter squat conditioning stimulus consisted of three sets of six second maximal voluntary contractions against a custom made apparatus. The conditioning stimulus was designed to acutely enhance CMJ performance by stimulating PAP, in turn improving indicators of CMJ performance which included eccentric rate of force development (ERFD), mean rate of force development (MRFD), peak rate of force development (PRFD), reactive strength index (RSI), and peak power (PP). CMJ performance was tested at one, five, ten, and fifteen minutes post-conditioning stimulus to identify the optimal recovery time for optimal performance. Statistical analysis was carried out using a two-way repeated measures analysis of variance (ANOVA) and no significant or meaningful change was found in ERFD, MRFD, PRFD, RSI, or PP. The overall power was small for all variables suggesting that the ability of the current study to observe an effect that might have existed was very unlikely. Effect size was also small in all variables suggesting that the change pre to post-testing was not meaningful. Some critical factors that may have contributed to the results included the individual's ability to potentiate, body positioning during conditioning stimulus, and level of conditioning of subjects.
Download or read book Strength Training for Baseball written by A Eugene Coleman and published by Human Kinetics. This book was released on 2021-07-27 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strength Training for Baseball will help you create a baseball-specific resistance training program to help athletes at each position--pitchers, catchers, middle infielders, corner infielders, center fielders, and corner outfielders--develop strength and power that will serve them on the field.
