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Examining Impulse-Variability in Kicking

Andrew Chappell, Sergio L. Molina, Jonathon McKibben, and David F. Stodden

This study examined variability in kicking speed and spatial accuracy to test the impulse-variability theory prediction of an inverted-U function and the speed-accuracy trade-off. Twenty-eight 18- to 25-year-old adults kicked a playground ball at various percentages (50–100%) of their maximum speed at a wall target. Speed variability and spatial error were analyzed using repeated-measures ANOVA with built-in polynomial contrasts. Results indicated a significant inverse linear trajectory for speed variability (p < .001, η2= .345) where 50% and 60% maximum speed had significantly higher variability than the 100% condition. A significant quadratic fit was found for spatial error scores of mean radial error (p < .0001, η2 = .474) and subject-centroid radial error (p < .0001, η2 = .453). Findings suggest variability and accuracy of multijoint, ballistic skill performance may not follow the general principles of impulse-variability theory or the speed-accuracy trade-off.

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Kinetic Analysis of the Fingers Under Different Ball Velocities During Overarm Throwing

Shohei Shibata, Yuki Inaba, Shinsuke Yoshioka, and Senshi Fukashiro

general function of the fingers during ball throwing, this study was not conducted with a specific throwing style (e.g., baseball pitching) but simply considered throwing from a static standing position. This clarification is made to provide potentially useful technical guidance for the acquisition of the

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Feasibility of Volitional Reaction Time Tests in Athletes: A Systematic Review

Danica Janicijevic and Amador Garcia-Ramos

Sensitivity Kida et al. ( 2005 ) Baseball players and nonathletes Pressing a key button when a colored square appeared on the screen. Simple RT and GO-no GO RT Sensitivity Reilly et al. ( 2007 ) Experienced soccer players Pressing a button when a red dot appeared on the screen. Simple and choice RT

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Effects of 4 Weeks of Variability of Practice Training in Padel Double Right Wall: A Randomized Controlled Trial

Carolina Gutiérrez-Álvarez, Joshua Colomar, Ernest Baiget, Santos Villafaina, and Juan Pedro Fuentes-García

), 2120 – 2122 . https://doi.org/10.1152/jn.1995.73.5.2120 10.1152/jn.1995.73.5.2120 Melugin , H.P. , Smart , A. , Verhoeven , M. , Dines , J.S. , & Camp , C.L. ( 2021 ). The evidence behind weighted ball throwing programs for the baseball player: Do they work and are they safe? Current

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Principal Component Analysis can Be Used to Discriminate Between Elite and Sub-Elite Kicking Performance

Michal Vagner, Daniel J. Cleather, Petr Kubový, Vladimír Hojka, and Petr Stastny

component analysis . Gait & Posture, 25 ( 1 ), 86 – 93 . https://doi.org/10.1016/j.gaitpost.2006.01.007 Fleisig , G. , Chu , Y. , Weber , A. , & Andrews , J. ( 2009 ). Variability in baseball pitching biomechanics among various levels of competition . Sports Biomechanics, 8 ( 1 ), 10 – 21

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Effects of 4 Weeks of Variability Training on Forehand Approach Precision and Velocity in Recreational Tennis Players

Celia Negro, Ernest Baiget, Joshua Colomar, and Juan Pedro Fuentes-García

practices associated with the tennis forehand: A review . Journal of Sports Science and Medicine, 12, 225 – 231 . Reinold , M.M. , Macrina , L.C. , Fleisig , G.S. , Aune , K. , & Andrews , J.R. ( 2018 ). Effect of a 6-week weighted baseball throwing program on pitch velocity, pitching arm

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Reliability and Sensitivity of Reaction Time Measurements During Quasi-Realistic Soccer Situations

Lazar Tomic, Danica Janicijevic, Aleksandar Nedeljkovic, Bojan Leontijevic, and Amador García-Ramos

isometric mid-thigh clean pull . Journal of Strength and Conditioning Research, 31 ( 5 ), 1378 – 1386 . PubMed ID: 28415068 doi:10.1519/JSC.0000000000001201 10.1519/JSC.0000000000001201 Kida , N. , Oda , S. , & Matsumura , M. ( 2005 ). Intensive baseball practice improves the Go/Nogo reaction

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Expertise- and Tempo-Related Performance Differences in Unimanual Drumming

Bryony Buck, Scott Beveridge, Gerard Breaden Madden, and Hans-Christian Jabusch

.1136/jnnp.2011.245811 10.1136/jnnp.2011.245811 Gray , S. , Watts , S. , Debicki , D. , & Hore , J. ( 2006 ). Comparison of kinematics in skilled and unskilled arms of the same recreational baseball players . Journal of Sports Science and Medicine, 24 ( 11 ), 1183 – 1194 . Hambrick , D

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Levels of Gnostic Functions in Top Karate Athletes—A Pilot Study

Tatiana Tapajcikova, Dávid Líška, Ladislav Batalik, Clea P. Tucker, and Alena Kobesova

. International Journal of Sports Physiology and Performance, 11 ( 3 ), 363 – 369 . https://doi.org/10.1123/ijspp.2015-0162 10.1123/ijspp.2015-0162 Safran , M.R. , Borsa , P.A. , Lephart , S.M. , Fu , F.H. , & Warner , J.J. ( 2001 ). Shoulder proprioception in baseball pitchers . Journal of