Physical restraint refers to means of purposely limiting or obstructing the freedom of a person's bodily movement.
Usually, binding objects such as handcuffs, legcuffs, ropes, chains, straps or straitjackets are used for this purpose. Alternatively different kinds of arm locks deriving from unarmed combat methods or martial arts are frequently used to restrain a person, which are predominantly used by trained police or correctional officers. This less commonly also extends to joint locks and pinning techniques.
The freedom of movement in terms of locomotion is usually limited, by locking a person into an enclosed space, such as a prison cell and by chaining or binding someone to a heavy or immobile object. This effect can also be achieved by seizing and withholding specific items of clothing, that are normally used for protection against common adversities of the environment. Examples can be protective clothing against temperature, hereby factually constraining the individual to remain in a sheltered spot. This also refers to taking away a person's shoes in a situation of captivity and forcing the individual to remain barefoot. The freedom of movement is practically restricted in many everyday situations without the protection offered by conventional footwear. Various ground textures in urban as well as natural areas can cause substantial physical distress for a shoeless person and hinder the locomotion. Ground textures consisting of crushed stone or similar construction aggregate can be practically impossible for a person to walk or run over without wearing shoes. Aside from extreme circumstances, an unshod person is steadily compromised by the usual imponderabilities of most surroundings and localities. Controlling the free movement of detainees by keeping them barefoot is therefore common practice in many countries. A main motive can be seen in the fact, that the principal effects of frustrating prison escape and curbing acts of resistance are obtained without cost and with only minimal effort. Further it is an effective complementation of binding restraints.