An acute, focal neurologic deficit is the hallmark of stroke. Major strokes involve both motor and sensory components. Symptoms may be sudden and maximal at onset (embolic) or intermittent and stuttering (thrombotic). Findings in stroke syndromes depend on the territory of brain suffering infarction.
The primary mover during the seated or lying leg extension exercise is a group of four muscle heads on the front of the thigh, collectively referred to as the quadriceps. The largest muscle head is the rectus femoris, which sits in the center of the front thigh.
The two major muscle groups of the upper leg are the hamstrings and the quadriceps. The hamstring muscle group is in the back of the thigh. The quadriceps muscle group is the large bulk of muscle at the front of the thigh. The hamstrings are made up of three individual muscles, while the quadriceps is made up of four different muscles. These two muscle groups are antagonistic and you use them in nearly all ambulatory activities.