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Change in throwing pattern: critical values for control parameter of velocity.

Dan Southard
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Abstract

The purpose of this study was to determine the critical values at which throwing patterns change when scaling up on the control parameter of velocity. Thirty-six participants (ages: 6-12 years) were categorized into four throwing levels according to patterns represented by temporal joint lag. Each participant was required to complete 5 overhand throws at each of 10 relative velocities for a total of 50 trials per participant. The lowest velocity was 10% of maximum, with increases in increments of 10% up to a maximum effort. Quantitative and qualitative analyses indicated that critical values varied according to throwing category and joint. Generally, lower skilled throwers (Levels 1 and 2) had less stable joint lag and changed patterns at lower velocities than higher skilled (Levels 3 and 4) throwers.

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Analysis of VarianceArmBiomechanical PhenomenaChildElbow JointFemaleHumansMaleMovementReference ValuesShoulder JointSportsTask Performance and AnalysisWrist JointClinical TrialJournal Article

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Dan Southard. 2002. Change in throwing pattern: critical values for control parameter of velocity.. https://doi.org/10.1080/02701367.2002.10609039

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