نتایج جستجو برای: throwing angle

تعداد نتایج: 133619  

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...

Journal: :Kinestetik: jurnal ilmiah pendidikan jasmani 2023

The Problem of this research is that the schools observed have never excelled, especially in discus throwing competitions, both at district, provincial and national levels. There are still many students whose results below throwing.The lack maximum student due to arm muscle power when throwing. This see effect circuit training systems terms learning motivation on results. study uses an experime...

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 ...

2016
Yasuto Kobayashi Michiyoshi Ae Akiyo Miyazaki Norihisa Fujii Akira Iiboshi Hideki Nakatani

The purpose of this study was to investigate the change in performance and technique of the overarm throwing in elementary school girls through a practice using the standard motion model. Fifteen girls from sixth grade were participated in three sessions: videotaping sessions at the preand post-practice and practice session. The throwing motions were videotaped with two high-speed cameras and a...

Journal: :British journal of sports medicine 1998
L Herrington

OBJECTIVE To assess differences in glenohumeral joint rotatory range of movement in javelin throwers between the throwing and non-throwing arm. METHOD A universal 360 degrees goniometer was used to assess glenohumeral joint external and internal rotation range in 90 degrees of shoulder abduction in a group of ten senior international javelin throwers. RESULTS Both arms had significantly gre...

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