| http://www.w3.org/ns/prov#value | - According to a further aspect the invention relates to a device for detecting a pressure force exerted by a human muscle in order to correct use of said muscle, which device comprises a force sensor and which device is provided with a memory, in which said force sensor is a sensor which records a squeezing force and is designed to emit a warning signal in the event of a threshold value being excee
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