J. Andrews

Publications482
h-index84
Citations26,510
Highly Influential Citations1,497
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Kinetics of Baseball Pitching with Implications About Injury Mechanisms
Elbow and shoulder kinetics for 26 highly skilled, healthy adult pitchers were calculated using high-speed motion analysis. Two critical instants were 1) shortly before the arm reached maximum… Expand
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Kinematic and kinetic comparison of baseball pitching among various levels of development.
Proper biomechanics help baseball pitchers minimize their risk of injury and maximize performance. However previous studies involved adult pitchers only. In this study, 23 youth, 33 high school, 115… Expand
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Biomechanics of the knee during closed kinetic chain and open kinetic chain exercises.
TLDR
PURPOSE Although closed (CKCE) and open (OKCE) kinetic chain exercises are used in athletic training and clinical environments, few studies compared knee joint biomechanics while these exercises are performed dynamically. Expand
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Osseous Adaptation and Range of Motion at the Glenohumeral Joint in Professional Baseball Pitchers *
The throwing shoulder in pitchers frequently exhibits a paradox of glenohumeral joint motion, in which excessive external rotation is present at the expense of decreased internal rotation. The object… Expand
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Current Concepts in the Rehabilitation of the Overhead Throwing Athlete
The overhead throwing motion is an extremely skillful and intricate movement that is very stressful on the shoulder joint complex. The overhead throwing athlete places extraordinary demands on this… Expand
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Effect of Pitch Type, Pitch Count, and Pitching Mechanics on Risk of Elbow and Shoulder Pain in Youth Baseball Pitchers
Background Joint pain is thought to be an early sign of injury to a pitcher. Objective To evaluate the association between pitch counts, pitch types, and pitching mechanics and shoulder and elbow… Expand
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Biomechanics of pitching with emphasis upon shoulder kinematics.
The American Sports Medicine Institute conducts research to increase understanding of mechanisms involved in upper extremity injuries to throwing athletes. This paper presents a qualitative overview… Expand
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Biomechanics of Overhand Throwing with Implications for Injuries
SummaryProper throwing mechanics may enable an athlete to achieve maximum performance with minimum chance of injury. While quantifiable differences do exist in proper mechanics for various sports,… Expand
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Operative Treatment of Ulnar Collateral Ligament Injuries of the Elbow in Athletes
Over a 6-year period, the senior author (JRA) performed 91 ulnar collateral ligament reconstructions (N 78) or repairs (N 13). All patients were male and between the ages of 15 and 39 years (average,… Expand
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The relationship between subjective knee scores, isokinetic testing, and functional testing in the ACL-reconstructed knee.
It is important to examine the functional relationships between commonly performed clinical tests and to resolve inconsistencies in previous investigative results. The purpose of this study was to… Expand
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