Our kneecap, aka the patella, gives us a 30% increase in the power production of our quadriceps, the muscles in the front of our thigh that, when activated, extend, or straighten, the knee.
Embedded in the tendon of the quadriceps, the kneecap articulates against the front of the lower end of the femur, the thigh bone.
Below the kneecap, the fibers of the quadriceps tendon continue as the patellar ligament. The patellar ligament starts from a “bump” on the front of the kneecap and goes down to attach to a “bump” on the front of the tibia, the large bone in the lower leg.
The kneecap holds, or raises, the patellar tendon off the femur, thus improving the angle of approach of the tendon to its lower insertion on the tibia. This is how it increases the power generation of the quadriceps.
