Stability of Stage Categorizations Across Trials: Implications for the "stage Theory" of Overarm Throw Development |
Common terms and phrases
73 children adjacent stage advanced throwing aligned but independent arm-trunk development arm-trunk relationship ball release behavior block rotation Chi Square Test child children showed components developmental level developmental psychology Differentiated rotation Ekern exhibited Extension and/or flexion film Forearm lags fully Forearm lags partially forward arm movement forward movement forward to ball Hanson horizontal adduction Humerus aligned Humerus lags humerus moves forward Humerus oblique hypothesized stages intra-task motor intra-task stage lateral flexion lateral rotation Leme longitudinal major arm-trunk stages major stages ment minor modal stage motor development motor learning motor task number of trials observed pelvic rotation pelvic-spinal steps pelvis and spine pelvis stationary performance plane horizontally aligned reached front facing reverse swing right angle Roberton rotation forward shoulder showing stage spinal rotation Spinal then pelvic stage theory stage-variable children subjects tion trunk action trunk movement trunk rotation Turiel Type University of Wisconsin-Madison upper spine velocimeter Wild Wild's