tailieunhanh - Thử nghiệm cơ bắp

Việc sử dụng các thiết bị thử nghiệm máy tính điều khiển cơ bắp đã trở nên ngày càng phổ biến trong hai thập kỷ qua. Thiết bị đắt tiền này cho phép đánh giá của cơ bắp và các nhóm cơ một cách isokinetic. Isokinetic thử nghiệm cơ bắp được thực hiện với một tốc độ liên tục chuyển động góc | Isokinetic Muscle Testing Is It Clinically Useful Louis C. Almekinders MD and Janine Oman MS PT ATC Abstract The use of computer-driven muscle-testing devices has become increasingly popular during the past two decades. This expensive equipment allows evaluation of muscles and muscle groups in an isokinetic manner. Isokinetic muscle testing is performed with a constant speed of angular motion but variable resistance. Isokinetic dynamometers have been shown to produce relatively reliable data when testing simple uniaxial joints such as the knee as well as when testing the spine in flexion and extension. Isokinetic strength data are generally not helpful in the diagnosis oforthopaedic abnormalities. Isokinetic testing can be helpful during the rehabilitation of orthopaedic patients since it allows easy monitoring of progress. It also enables the patient to work on muscle rehabilitation in a controlled manner at higher speeds than are possible with more conventional exercise equipment. An isokinetic rehabilitation program can be easily tailored with concentric and eccentric components that closely resemble muscle actions during occupational and sports activities. J Am Acad Orthop Surg 1994 2 221-225 Orthopaedic surgery has seen an enormous increase in the use of newly developed technology in the past two decades. New implant design improved surgical equipment and the use of robotics have all been part of this wave of technological advances in the operating room. Similarly innovative equipment has also been introduced in the diagnostic and rehabilitative settings. Instrumented muscle testing is one example of such new technology. Muscle testing for diagnostic or rehabilitative purposes classically was done manually or with weights. Manually the muscle is usually graded in an isometric fashion on a scale from 0 to 5 with 0 representing complete absence of muscle function and 5 representing normal strength. When weights are used the muscle or muscle group can be tested .