Fig. 5
Running experiments. a Patellar tendon wave speeds speed over the gait cycle when running at a fixed speed with different step rates. b Lateral hamstring (biceps femoris) tendon wave speeds detect utilization of this muscle with increasing speed during both mid-stance (15% of gait cycle), and late swing (85% of gait cycle). Hamstring loading during both phases increased markedly with speed, though stance phase demands greater tissue loads than swing phase in this individual
