Motion detection member

A motion detection member for detecting motion of a wearing body, the motion detection member comprising:

• a wearable part that is to be worn on the wearing body, the wearable part including an expanding/contracting portion that is configured from an expandable/contractible fabric material that expands/contracts as a result of the motion of the wearing body;
• and
• a wiring electrode part including:
• a wiring part provided at at least a portion of the expanding/contracting portion of the wearable part, the wiring part including a first wiring part including a conductive linear body and a second wiring part including a conductive linear body;
• and
• an electrode part including a first electrode part electrically connected to the first wiring part and a second electrode part electrically connected to the second wiring part,
• wherein, when the expanding/contracting portion of the wearable part, at which the wiring part is provided, expands/contracts as a result of the motion of the wearing body, a contact state between the first wiring part and the second wiring part changes, so that a resistance value between the first electrode part and the second electrode part changes.