Back injury while lifting carton not an accidentKI-generiert

Art. 9 al. 1 OLAA; notion of accident and extraordinary external cause; lifting a load and back injury do not suffice. An accident requires a sudden involuntary harmful event caused by an extraordinary external factor. Musculoskeletal pain occurring while lifting a carton, without such an external exceptional circumstance, does not constitute an accident. Nor is coverage available under Art. 9 al. 2 OLAA where the factual constellation does not correspond to the legally enumerated bodily injuries or their equivalent. Whether a lesion of the spine is covered depends on the statutory prerequisites and cannot be inferred from the mere occurrence of pain during a lifting movement.