The healing factor allows his strength to be pushed beyond the limits of the human body, without injury, enabling a degree of superhuman strength.Wolverine vol.2 #1 This is augmented by the constant demand placed on his muscles by over one hundred pounds(45.5 kilos) of adamantium.Wolverine vol.2 #57 Additionally, the adamantium removes his skeletal structural limitations, allowing him to lift an amount of weight that would damage a human skeleton.Official Handbook to the Marvel Universe: Wolverine 2004 vol.1 #1. He has been depicted being strong enough to break steel chainsUncanny X-Men vol. 1 #111 and being able to lift a dozen men above his head with one arm and throw them through a wall.Wolverine vol.2 #1