Record Details
The Influence of Knee Extension Rate of Torque Development on Sagittal Plane Knee Biomechanics during Landing
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | The Influence of Knee Extension Rate of Torque Development on Sagittal Plane Knee Biomechanics during Landing |
| Names |
Almog, Roy
(creator) Hillman, Kassena (advisor) Norcross, Marc F. (advisor) |
| Date Issued | 2015-06-02 (iso8601) |
| Note | Honors Bachelor of Science (HBS) |
| Abstract | Purpose: To investigate the influences of RTD on biomechanical factors upon landing. Methods: A nine camera motion capture system (Vicon, Inc.) was used with standard retroreflective marker set (27 static, 23 dynamic) to capture lower limb kinematics of 40 healthy female subjects during double leg jump landing (DL) and single-leg jump cutting (SC). Standard inverse dynamics were used to calculate the three-dimensional loads at the knee. Results: The 37 subjects with valid data were split into 2 groups (n=18) of high and low RTD. The High RTD group landed with significantly more knee flexion at initial contact (IC) during both the double leg and single leg jump cut tasks (p < 0.05). No significance was observed between RTD groups for peak anterior tibial shear force (pATSF) or peak knee extension moment pKEM (p > 0.05). Conclusion: Individuals exhibiting lesser knee extension RTD landed with lesser knee flexion at IC while performing both tasks. Landing with lesser knee flexion likely increases risk for ACL injury during ballistic movements. It may be beneficial to train athletes to increase knee extension RTD in order to promote greater knee flexion at initial contact during landing for the purpose of injury prevention. |
| Genre | Thesis |
| Topic | ACL |
| Identifier | http://hdl.handle.net/1957/55948 |
