User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-5043481-20131213232104/@comment-11685710-20131214093433

Can't tell exactly, what knockback is, but I would guess that monsters won't let you trip as often. The skill also grants current res (low), wind proof (low) and earplugs (low) (that's the info from the Prima guide)