転倒
A fall is an event which results in a person coming to rest inadvertently on the ground. For certain purposes, such as research and prognosis, it would be desirable to exclude from the definition those falls resulting from loss of consciousness, onset of paralysis, an epileptic attack, or impact with a moving vehicle.
両者の大きな違いは、前者は失神を含むのに対して、後者は除外している