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Air muscle or Pneumatic artificial muscles (PAMs) are contractile or extensional devices operated by pressurized air filling a pneumatic bladder. In a vague approximation of human muscles, PAMs are usually grouped in pairs: one agonist and one antagonist.

Air muscle or Pneumatic artificial muscles (PAMs) are contractile or extensional devices operated by pressurized air filling a pneumatic bladder. In a vague approximation of human muscles, PAMs are usually grouped in pairs: one agonist and one antagonist.