Myomer is an artificial analog of biological muscles with a greater strength to weight ratio. They are engaged with electrical current and its strength depends on the amount of fibers activated, not the current provided.
Myomer require large amounts of electrical voltage to function, with the larger "muscles" obviously requiring more energy than smaller. However, they have high electrical resistance, causing large amounts of waste heat which needs to be dispersed or the fibers will fry themselves. This does however grant an advantage as myomer cannot be stunned by electrical discharges, even more so as metal armor and skeletons have a low electrical resistance, channeling and discharging any strong electrical hits into the ground.
 Production and Composition
Myomer are microscopical poly-acetylene tubes filled with an acti-strandular fiber. These fibers are created by mixing biologically engineered bacteria with specific polymers within the tubes. An electric current is sent through these tube, causing the fibers to arrange themselves into a complex nano-structure similar to the proteins myosin and actin that allow biological muscles their movement.