New Mechanics of Generic Musculo-Skeletal Injury
| dc.creator | Ivancevic, Vladimir G. | |
| dc.date | 2008-07-11 | |
| dc.date | 2009-04-09 | |
| dc.date.accessioned | 2026-07-07T13:01:28Z | |
| dc.date.available | 2026-07-07T13:01:28Z | |
| dc.description | Prediction and prevention of musculo-skeletal injuries is an important aspect of preventive health science. Using as an example a human knee joint, this paper proposes a new coupled-loading-rate hypothesis, which states that a generic cause of any musculo-skeletal injury is a Euclidean jolt, or SE(3)-jolt, an impulsive loading that hits a joint in several coupled degrees-of-freedom simultaneously. Informally, it is a rate-of-change of joint acceleration in all 6-degrees-of-freedom simultaneously, times the corresponding portion of the body mass. In the case of a human knee, this happens when most of the body mass is on one leg with a semi-flexed knee -- and then, caused by some external shock, the knee suddenly `jerks'; this can happen in running, skiing, sports games (e.g., soccer, rugby) and various crashes/impacts. To show this formally, based on the previously defined covariant force law and its application to traumatic brain injury (Ivancevic, 2008), we formulate the coupled Newton--Euler dynamics of human joint motions and derive from it the corresponding coupled SE(3)-jolt dynamics of the joint in case. The SE(3)-jolt is the main cause of two forms of discontinuous joint injury: (i) mild rotational disclinations and (ii) severe translational dislocations. Both the joint disclinations and dislocations, as caused by the SE(3)-jolt, are described using the Cosserat multipolar viscoelastic continuum joint model. Keywords: musculo-skeletal injury, coupled-loading--rate hypothesis, coupled Newton-Euler dynamics, Euclidean jolt dynamics, joint dislocations and disclinations | |
| dc.description | 13 pages, 1 figure, latex - major corrections | |
| dc.identifier | https://arxiv.org/abs/0807.1759 | |
| dc.identifier | http://arxiv.org/abs/0807.1759 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/226161 | |
| dc.subject | Tissues and Organs | |
| dc.subject | Quantitative Methods | |
| dc.title | New Mechanics of Generic Musculo-Skeletal Injury | |
| dc.type | text |