Please login to view this media
- Talk
- 15/06/2021
- Canada
Patellofemoral Joint Contact Pressures and Patellar Tracking for Activation of Individual Quadriceps Muscles
Description
This presentation focuses on the mechanics of the quadriceps muscles and their role in patellofemoral joint movement during muscle activation. Seong-Won Han discusses how individual quadriceps muscles pull the patella in their respective directions and emphasizes the importance of understanding muscle imbalances that can lead to patellofemoral pain.
The study outlined aims to explore the mechanical contributions of each quadriceps muscle to knee joint mechanics, hypothesizing that their individual contributions would be similar when force magnitude is consistent. Utilizing a Revit model, patellar tracking was assessed during simultaneous and individual activation of the quadriceps. Results show how medial-lateral patellar rotation during various knee joint angles is influenced by individual muscle activation.
Unexpected findings revealed that the vastus medialis muscle has a distinct impact on patellar tracking mechanics compared to other quadriceps muscles. This suggests that the different magnitudes of torque alone do not account for the variations in patellar movement, highlighting the unique role of the vastus medialis in maintaining proper joint mechanics.
In conclusion, the findings emphasize the complexity of muscle contributions to joint mechanics, advocating for further research into the specific roles of each quadriceps muscle in patellofemoral joint function.