Tendon Hierarch Evidence x-fay M 35 A staining periodicity fibroblasts waveform or crimp structure fascicular 15A35A100-200A500.5000A50-300μ 100-500μ ze Sc ACL- different strain rates Medium Range of linearity. E=d(stress)(strain)=10Pa Comments Ninety percent of the ACL specimens failed by avulsion at the insertion site(72% at the tibial insertion and 18% at the femoral insertion), and 10% failed in the midsubstance Reference(s) anto MI. Woo SL- Y(1993)The mechanical properties of skeletally mature rabbit antenor cruciate ligament and patellar tendon over a range of strain rates. J Orthop Res 11: 58-67 (with permissionACL -- different strain rates Range of linearity. E = d(stress)/d(strain) = 109 Pa 7