How to Stop Ragdolls from "exploding"?


I have a nasty problem with some of my ragdoll physics. I don’t know where the problem lies. Whenever there is enough force applied, the whole ragdoll starts “exploding”.
There does not seem to be any kind of constraint to keep the bone parts in place relative to each other it seems.

And yes, substepping is enabled.

Here’s a demonstration video: