The Effects Of Foot Position On The Pitching Rubber On Throwing Strikes In Baseball
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The Effects Of Foot Position On The Pitching Rubber On Throwing Strikes In Baseball
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Author : Charles R. Behrends
language : en
Publisher:
Release Date : 1965
The Effects Of Foot Position On The Pitching Rubber On Throwing Strikes In Baseball written by Charles R. Behrends and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Baseball categories.
The Effects Of The Stride And Position On The Pitching Rubber On Control In Baseball Pitching
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Author : Donald K. Edwards
language : en
Publisher:
Release Date : 1958
The Effects Of The Stride And Position On The Pitching Rubber On Control In Baseball Pitching written by Donald K. Edwards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with categories.
Biomechanics Of Sport And Exercise
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Author : Peter M. McGinnis
language : en
Publisher: Human Kinetics
Release Date : 2020-01-10
Biomechanics Of Sport And Exercise written by Peter M. McGinnis and has been published by Human Kinetics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-10 with Science categories.
A standout among introductory biomechanics texts, Biomechanics of Sport and Exercise, Fourth Edition With Web Resource, takes a unique approach to introducing exercise and sport biomechanics. Using simple terms, the book presents mechanics before functional anatomy, helping students first understand external forces and their effects on motion; then explores how the musculoskeletal system responds and generates its own internal forces to maintain position; and finally shows how to apply biomechanical principles to analyze movement and ultimately improve performance. The fourth edition expands its commitment to enabling students to discover the principles of biomechanics through observation. Easy-to-understand experiments are presented for students to try in the classroom or on their own. Sample problem sidebars guide students through choosing the appropriate equation to determine the forces acting or motion occurring in a specific scenario and then helps them solve the equation. This practical approach—combining clear illustrations, sample calculations, and encouragement for active learning—helps students develop a deeper understanding of the underlying mechanical concepts. In addition to careful updates throughout the book, other new enhancements in the fourth edition include the following: New content explores the technologies and devices available to coaches, athletes, and the general public to measure aspects of athletes’ movements. New full-color art and diagrams enhance the text and help students visualize mechanics in real-world scenarios. Explanations of the equations used in the text make the content more accessible to students. New concept application boxes provide deeper analysis of the field use of biomechanics, with topics such as the Magnus effect in baseball pitching, the wetsuit effect in triathlons, power output in cycling, centripetal acceleration when running a curve, and the work-energy principles in modern shot putting. Other learning aids include bold key terms, chapter objectives, and a guide to key equations and abbreviations. The chapters include a total of 18 sample problems that students can solve using a step-by-step process. A companion web resource offers additional review questions and problem sets. Biomechanics of Sport and Exercise, Fourth Edition, introduces the biomechanics of human movement in a clear and concise manner while promoting an active, engaged learning experience. Students will discover the principles of mechanics for themselves, resulting in a strong understanding of the subject matter.
A Kinematic And Kinetic Comparison Of Baseball Pitching Mechanics Influenced By Stride Length
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Author : Ryan Lewis Crotin
language : en
Publisher:
Release Date : 2013
A Kinematic And Kinetic Comparison Of Baseball Pitching Mechanics Influenced By Stride Length written by Ryan Lewis Crotin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Current workload metrics and ball velocity records have been dubious in identifying clear overuse mechanisms of injury, raising greater interest in pathomechanics research, where most work has been focused on the critical instant, spanning the throwing arm's acceleration and deceleration phases. Since throwing arm kinematics and kinetics are lowest from the onset of the pitching delivery, the majority of research neglects biomechanical interactions occurring before stride foot contact (SFC). In light of this, the current dissertation established a new framework of study, examining stride length effects on baseball pitching performance, where lower extremity joint dynamics from the onset of the delivery through to ball release, ground reaction force profiles, as well as global pelvic and trunk kinematics are anticipated to be affected by altered propulsion and bracing biomechanics. The dissertation investigated the effect of stride length through seven studies. To determine an overall representation of stride length impacts on the kinetic chain and temporal events, linear and angular momentum analyses were performed for the total body and throwing arm. Trunk-throwing arm momentum exchanges were represented by momentum compensation ratios to identify the proportion of the throwing arm to the total body momentum (contributed mostly by the trunk). In the results, stride length affected the instant of SFC, as longer strides increased single support generation and abbreviated the duration of the brace-transfer phase. Momentum relationships most consequential to phase time affects entailed greater leading axis momentum for pitchers with longer strides, while greater transverse momentum later in the pitching delivery was seen with shorter strides, which had been considered compensatory for reduced propulsion prior to SFC. The second study differentiated propulsion and bracing ground reaction force profiles, as vertical weighting, anterior-shear forces and their normalized impulses were greater for longer strides prior to SFC, while thereafter, the drive foot applied braking forces in tandem with the stride leg. Shorter strides minimized drive foot posterior-shear force, maintained propulsion after SFC in double support, and applied peak vertical weighting of the stride leg near ball release. Affected ankle dynamics were featured in the third study, which related to the aforementioned differences in ground reaction force profiles. Longer stride's drive ankle applied greater propulsion dynamics prior to SFC with closed-chain dorsiflexor moments thereafter to assist braking and landed the stride foot with greater heel-strike.^Shorter strides maintained drive ankle propulsion dynamics after SFC, minimized hind ankle braking, landed more in toe-strike, and required greater stride ankle braking dynamics during acceleration. Bilateral knee flexion-extension dynamics were investigated in succession where greater propulsive dynamics during generation and greater hind leg extension kinetics were found with longer strides, believed to increase inertial and frictional effects in braking effects. Maintained propulsion after SFC, greater stride knee flexion and extension power occurred with shorter strides. In the fifth study, femoral-acetabular hip dynamics revealed greater internal rotation and abduction, which facilitated greater maximum drive hip kinetics in extension prior to SFC with longer strides. Following SFC, longer strides generated greater stride hip extension power in braking and eccentrically slowed internal rotation in greater stride hip flexion. Longer strides improved stride hip biomechanics to better moderate internal pelvic rotation toward home plate and added stability, throwing from a lowered position within a wider base of support. Shorter strides revealed greater stride hip extension, believed to elevate the center of mass within a narrower base of support, reducing stability to most likely minimized braking to maintain drive hip propulsion kinetics and expedite internal pelvic rotation in double support after SFC. The sixth study, proximal segment kinematics were examined as longer strides anterior pelvic rotation, forward trunk flexion, upward pelvic rotation, non-dominant trunk bending, as well as internal rotation kinematics of the trunk and pelvis were greater prior to SFC. Thereafter, the kinematics mentioned above were greater for shorter strides. Lastly, pelvic-trunk separation angles and proximal plyometric effects denoted stride length influences upon the transverse pelvic-trunk rotational couple.^Greater separation occurred prior to SFC with longer strides with peak separation found shortly thereafter. Shorter strides further counter-rotated the pelvis away from home plate at the onset of the pitching delivery and also coordinated peak separation later in the delivery near the acceleration phase, producing greater proximal plyometric effects at BR, evidenced by a 3. 3-fold faster internal rotation velocity of the trunk than that of the pelvis. Our exploration drew several overall conclusions: 1) Stride length is critical to event timing between the onset of delivery and the beginning of brace-transfer phase, 2) Longer strides increase drive leg propulsion dynamics prior to SFC and initiates tandem braking effects (drive and stride leg braking dynamics) thereafter in slowing trunk angular momentum prior to the critical instant, 3) Pitchers with longer strides tend to release each pitch in greater double support (greater drive and stride foot weighting into the ground), 4) Shorter strides maintain propulsion in double support following SFC, minimizing drive leg braking, delaying stride leg braking and increasing transverse trunk momentum prior to the critical instant, and 5) Shorter strides have a greater tendency to be pathomechanic, as elevated internal rotation velocities of the trunk near the critical instant appear to disrupt transverse momentum transfer to the throwing arm. Performance outcomes were found statistically equivalent between conditions suggesting that stride length and accompanied biomechanics can be highly variable in skilled pitchers without impacting competitive performance. Since most stride lengths are attained through maintenance of peak ball velocity, many desired strides may be flawed, susceptible to exertion, and encourage throwing arm pathologies. This work draws attention to the need for further work exploring stride length optimization, intimating a rationale that adjusting stride length as a percentage of body height mitigates undesired lower extremity, pelvic, and trunk biomechanics through appropriating propulsion and bracing dynamics.
Master S Theses In Education
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Author : T. A. Lamke
language : en
Publisher:
Release Date : 1966
Master S Theses In Education written by T. A. Lamke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Dissertations, Academic categories.
The Research Quarterly Of The American Association For Health Physical Education And Recreation
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Author :
language : en
Publisher:
Release Date : 1963
The Research Quarterly Of The American Association For Health Physical Education And Recreation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Health education categories.
What Research Tells The Coach About Baseball
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Author : Guy G. Reiff
language : en
Publisher:
Release Date : 1971
What Research Tells The Coach About Baseball written by Guy G. Reiff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Baseball categories.
Research Quarterly
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Author : American Association for Health, Physical Education, and Recreation
language : en
Publisher:
Release Date : 1963
Research Quarterly written by American Association for Health, Physical Education, and Recreation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Exercise categories.
Biomechanics Of Sport And Exercise
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Author : Peter Merton McGinnis
language : en
Publisher: Human Kinetics
Release Date : 2005
Biomechanics Of Sport And Exercise written by Peter Merton McGinnis and has been published by Human Kinetics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Education categories.
Biomechanics of Sport and Exercise, Second Edition, introduces exercise and sport biomechanics in concise terms rather than focusing on complex math and physics. This book helps students learn to appreciate external forces and their effects, how the body generates forces to maintain position, and how forces create movement in physical activities.
Clean Your Cleats
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Author : Dan Blewett
language : en
Publisher: Dan Blewett
Release Date : 2022-02-15
Clean Your Cleats written by Dan Blewett and has been published by Dan Blewett this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-15 with Sports & Recreation categories.
What Does it Take to Have a Great Baseball Career? You daydream about one day seeing your face on a baseball card. You live for pressure and the green grass beneath your cleats. But as your career progresses, the game gets harder. You slump and struggle. You get injured and overlooked. Your confidence plummets. Can you keep improving? Are your big dreams still within reach? A Handbook for the Dedicated Player Clean Your Cleats is filled with stories and advice learned the hard way, over a long career on the diamond. Develop better routines and improve your consistency. Handle the ups and downs with confidence and resolve. Strengthen relationships with teammates, parents and coaches. Learn mindset strategies to become the best version of you. Dan Blewett, in this practical guide, helps players understand all the little things in baseball that make a huge difference over a long career. Why clean your cleats? Because every detail matters.