The knee joint functions as a stabilizer for the lower extremity during weight bearing and allows large range of motion for various functional activities. The two primary articulations of the knee joint are the tibiofemoral joint and the patellofemoral joint.
1. electrocardiogram recorded between one limb and two other limbs. The augmented leads are designated aVF, aVL, and aVR for recordings made between the foot (left), left arm, and right arm, respectively, and the other two limbs. The definition information for augmented lead is provided by Stedman's.
The Vectraplex Holter System is an ambulatory cardiac monitor that patients can wear at home or in the hospital to detect ECG changes suggestive of an AMI within seconds and derive the 15 lead ECG (12 lead and vectorcardiogram XYZ leads, including VCG loops) from the acquisition of only 3 leads (5 electrodes).