Their video:<p><a href="https://www.youtube.com/watch?v=H7dhwFcuUn0" rel="nofollow">https://www.youtube.com/watch?v=H7dhwFcuUn0</a><p>Taken at face value, it is a very cool project. With pneumatic muscles, the biggest challenge is actually not strength but control. Fine strength/distance control is difficult. Pneumatic muscles are more for bang-bang control (on/off). The company seems to address this issue by having many "myofibers" and recruiting the fibers one by one. However, in the video, the movement is still very jerky. My limbic robots were very jerky too.<p>Nevertheless, very cool. The claimed 500w pump, if really done, is quite a feat. Assuming 80% efficiency, 400w output for muscles would put the robot on par with a competitive cyclist activating quadriceps, the largest muscles in the body.