Abstract
7 children 15 to 30 mo. old participated in a study of 3-dimensional kinematics of overarm throwing. Children of different ages were considered to be at different developmental stages of motor development. Video recordings were digitised and 3-dimensional coordinates established using the DLT algorithm. Qualitative analysis indicated that the children executed either a 'static' or 'dynamic' throwing action. Either could further be classified as 'arm dominated' or 'sequentially linked.' Maximum elbow extension was no more than 163° for any child; release velocity was higher for older subjects; and the angle of ball release was large in 'arm-dominated throws' (M=49°) and comparatively smaller in 'sequentially linked' throws (M=15°).
| Original language | English |
|---|---|
| Pages (from-to) | 1267-1283 |
| Number of pages | 17 |
| Journal | Perceptual and Motor Skills |
| Volume | 84 |
| Issue number | 3 PART II |
| DOIs | |
| Publication status | Published - Jun 1997 |
| Externally published | Yes |