Pneumatic artificial muscles conventional electric motors and hydraulic cylinders. Pneumatic artificial muscles Pneumatic artificial muscles (PAMs) are contractile or extensional devices operated by pressurized air filling a pneumatic bladder. In an approximation of human muscles, PAMs are usually grouped in pairs: one agonist and one antagonist. PAMs were first developed (under the name of "McKibben Artificial Muscles") in the 1950s for use in artificial limbs. The Bridgestone rubber company (Japan) commercialized the idea in the 1980s under the name of Rubbertuators. The retraction strength of the PAM is limited by the sum total strength of individual fibers in the woven shell. The exertion
Body image (medicine) Body image (medicine) Body image is a medical term, often used in the context of describing a patient's cognitive perception of their own body. The medical concept began with the work of the Austrian neuropsychiatrist and psychoanalyst Paul Schilder, described in his book "The Image and Appearance of the Human Body" first published in 1935. In psychology, it typically refers to one's perceptions, beliefs, and emotional attitudes towards one's body. The concept is used to discuss various pathologies and disorder, such as anorexia nervosa and other eating disorders, body dysmorphic disorder, body integrity identity disorder and various post-stroke conditions like