SCKAFOs may utilize various mechanisms, but in general are designed for locking the knee joint during the stance phase of gait and unlocking it (allowing the knee to bend) during the swing phase. [...] With the stance control feature, flexion of the knee is blocked during stance, the weight-bearing phase of the gait. [...] In the same article, a quote by G. Bedard points out that out of 500 attendees of the 2007 Annual Meeting and Scientific Symposium of the American Academy of Orthotists and Prosthetists, only “30 percent had any experience in providing SCOs; only 15 percent had fitted as many as five; and only two people had fitted ten or more.” The issue of reimbursement was also mentioned. [...] When prescribing SCKAFOs and selecting the most appropriate one for the patient, the following 14, 15 factors should be taken into account, according to the manufacturer: - age and cognitive state of the patient - diagnosis and prognosis - biomechanics of the muscles and joints, such as muscle strength and range of motion - contraindications - properties of the candidate SCKAFOs (cost, size, weigh [...] The intelligent sensors of E-MAG Active are placed to measure the 17 position of the leg and to control the orthotic joint system accordingly.