Result of a ‘foot entrapment’

A foot entrapment is where someone swimming/floating down flowing swift-water has their foot wedged in between objects underneath the water. This can be fatal as the victim will be stuck with water pushing on them, causing them to be pushed forward whilst stuck in place, in turn pushing their head down under water due to the excess force, this usually results in drowning. This victim however knew and understood what would happen if he stayed entrapped so instinctively ripped his leg out from the entrapment, resulting in the above picture...