It is subdivided into four separate portions or 'heads', which have received distinctive names:
The quadriceps is also involved in Lombard's Paradox.
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step.
Assessment of the quadriceps femoris muscle in women after injury induced by maximal eccentric isokinetic exercise with low angular speed.(Research article)(Report)
Mar 01, 2007; Abstract The objectives of this study were to propose a model for exercise-induced muscle injury by way of a maximal eccentric...
Development of a mathematical model for predicting electrically elicited quadriceps femoris muscle forces during isovelocity knee joint motion.(Research)(Report)
Dec 10, 2008; Authors: Ramu Perumal (corresponding author) ; Anthony S Wexler ; Stuart A Binder-Macleod IntroductionFunctional...