Ever hear of the Q-angle? It’s not a geometry term, but a name for the Quadriceps – or “Q” – angle at which the femur (thigh bone) meets the tibia (shinbone). What’s newsworthy about this Q-angle is ...

For evolutionary reasons, women have wider pelvises than men to enable childbirth. This affects the so-called Q-angle, which has a special significance in sports. It influences the risk of injuries, ...

(A) The original EMG signal is collected from the corresponding muscle. (B) The EMG signal was preprocessed and the features were extracted. (C) Extracted EMG features. (D) The “Elder Brother” module ...

Background Patellofemoral pain syndrome (PFPS) is the most common complaint in female volleyball players. Larger quadriceps femoris angle (Q angle) has been implicated as a source of patellofemoral ...