Linear and angular accelerations of the human head were measured during heading of a soccer ball. A set of three tri-axial accelerometers was mounted to the head of each of four adult male subjects. Acceleration measurements (9 signals) were used to estimate the linear acceleration of the mass center, and the angular acceleration of the head. Results were obtained for ball speeds of 9 and 12 m/sec (20 and 26 mph). At these speeds linear accelerations of the head were 158±19 and 199±27m/s2 and the angular accelerations were 1302±324 and 1457±297 rad/s2. The impact duration was approximately 25 ms. Linear and angular acceleration levels are well below those thought to be associated with traumatic brain injury, but the effect of repeated accelerations at these levels is unknown.
|Number of pages||2|
|Journal||Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings|
|State||Published - Dec 1 2002|
|Event||Proceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States|
Duration: Oct 23 2002 → Oct 26 2002
- Head injury