نتایج جستجو برای: throwing power

تعداد نتایج: 489948  

2017
Austin V. Stone Sandeep Mannava Anita Patel Alejandro Marquez-Lara Michael T. Freehill

BACKGROUND Despite widespread use of long-toss throwing in baseball as a component of arm conditioning, interval throwing programs, and rehabilitation, long-toss distance and throwing mechanics remain controversial. PURPOSE To ascertain the perceived definition of long-toss throwing through a survey of professional pitchers, pitching coaches (PCs), and certified athletic trainers (ATCs) assoc...

Journal: :Clinical orthopaedics and related research 2012
W Ben Kibler Aaron Sciascia Stephanie Moore

BACKGROUND Glenohumeral internal rotation (GIR) and total arc of motion (TAM) decrease, whereas external rotation (GER) may increase in throwing. Although decreased GIR has been documented after throwing, its time course for recovery and the effect of pitching role have not. QUESTIONS/PURPOSES We therefore asked (1) how much rotational change occurs after a single throwing episode; (2) do the...

Journal: :International journal of sports physical therapy 2015
Courtney Bohne Steven Z George Giorgio Zeppieri

BACKGROUND Information on baseball injury prevention and pitch count recommendations is growing, however, the incidence of throwing injuries continues to rise. This study is the first to assess knowledge of safe throwing guidelines and risk factors from the perspective of youth athletes. PURPOSE The purpose of this study is two-fold: (1) to evaluate knowledge of safe throwing guidelines and (...

Journal: :Journal of strength and conditioning research 2012
Rafael F Escamilla Michele Ionno M Scott deMahy Glenn S Fleisig Kevin E Wilk Kyle Yamashiro Tony Mikla Lonnie Paulos James R Andrews

Throwing velocity is an important baseball performance variable for baseball pitchers, because greater throwing velocity results in less time for hitters to make a decision to swing. Throwing velocity is also an important baseball performance variable for position players, because greater throwing velocity results in decreased time for a runner to advance to the next base. This study compared t...

2013
John P. Dickerson Tuomas Sandholm

One typically proves infeasibility in satisfiability/constraint satisfaction (or optimality in integer programming) by constructing a tree certificate. However, deciding how to branch in the search tree is hard, and impacts search time drastically. We explore the power of a simple paradigm, that of throwing random darts into the assignment space and then using information gathered by that dart ...

Journal: :International journal of sports physiology and performance 2010
Herbert Wagner Michael Buchecker Serge P von Duvillard Erich Müller

PURPOSE The aims of the present study were: (1) to compare the differences in the ball release speed and throwing accuracy between the ABOVE and SIDE throw; (2) to analyze kinematic differences of these two throwing techniques; and (3) to give practical applications to team handball coaches and players. METHODS Ball release speed, throwing accuracy, and kinematics were measured via the Vicon ...

2017
Nathan W. Skelley Matthew V. Smith

There are five main phases of the throwing motion: windup, cocking, acceleration, deceleration, and follow-through (Fig. 2.1) [1–3]. The phases of the throwing motion generate and transmit energy to the arm to create velocity [1]. Windup and follow-through compose the majority of the throwing time, but the entire process can take less than 2 s. As a result, throwing athletes require efficient a...

2010
Michael M. Reinold Thomas J. Gill

The overhead-throwing athlete is a challenging sports medicine patient. The repetitive microtraumatic stresses imposed on the athlete's shoulder joint complex during the throwing motion constantly places the athlete at risk for injury. These stresses may effect several adaptations to normal shoulder range of motion, strength, and scapula position. The clinician should therefore appreciate the u...

Journal: :رشد و یادگیری حرکتی - ورزشی 0
احمد قطبی ورزنه مربی دانشگاه شهید چمران اهواز مهدی ضرغامی دانشیار دانشگاه شهید چمران اهواز اسماعیل صائمی مربی دانشگاه شهید چمران اهواز فرزاد ملکی مربی دانشگاه شهید چمران اهواز

the present study aimed to examine throwing accuracy and spatial and digit working memory of field dependent-independent participants. the group embedded figure test (geft) was distributed among 320 male students and based on the geft scores, 45 participants were randomly divided into field dependent, field independent and control group (15 participants/each group). the study included two tasks...

2009
Michael Axe Wendy Hurd Lynn Snyder-Mackler

CONTEXT Baseball throwing injuries are common. Emphasis on injury prevention and rehabilitation is made in an attempt to keep athletes on the field of competition. Interval throwing programs are an integral part of training, conditioning, and returning an injured baseball player to the game. EVIDENCE ACQUISITION Development of data-driven programs was based on the number, type, distance, and ...

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