Bone Deformation Recorded in vivo from Strain Gauges Attached to the Human Tibial Shaft

作者：Lance E. Lanyon, W.G.J. Hampson, Allen E. Goodship, JS Shah · 发表于：Acta Orthopaedica Scandinavica · 年份：1975 · DOI：10.3109/17453677508989216 · 被引用次数：480 · 研究领域：Bone fractures and treatments、Bone health and osteoporosis research、Genetics and Physical Performance

A strain gauge rosette was attached to the midshaft of a man's tibia. This demonstrated that during every stride the bone surface was subjected to a number of discrete deformation cycles. During each cycle the bone was deformed from a particular direction, released at least partially and then deformed from another direction. This feature has been observed from a number of sites in experimental animals. The largest deformation occurred while the subject was running; the principal tension then reached 850 microstrain applied in line with the bone's long axis at 13 times 10-3 microstrain per second. When walking the largest deformation occurred prior to 'toe off'; compression was then the larger principal strain about minus 400 microstrain applied at 37 degrees to the bone's long axis at minus 4 times 10-3 microstrain per second. These strain values are the same order of size as those recorded from the long bones of sheep and pigs during their locomotion.