Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Ultrasound image from the medial gastrocnemius during cycling at a pedal speed of 60 r.p.m. and a crank torque of 17 N m. The circles show the digitized points, and the lines show the interpolated aponeurosis and fascicle trajectories. The diamonds show the ends of a muscle fascicle that has a pennation angle of α with the superficial aponeurosis. The angle between the superficial and deep aponeuroses is β−α.
