How to make your humanoid root part stay with your player while playing an animation?

So I have an roll animation and when I play it the animation is fine but the humanoidrootpart won't move. So when The animation ends it is sets back to the humanoidrootpart. What do I do to make the humanrootpart go along with the animation? also here is my script

local animation = Instance.new("Animation")
animation.AnimationId = "http://www.roblox.com/Asset?ID=302850882"
while true do
local Humanoid = game.Players.LocalPlayer.Character.Humanoid
local animTrack = Humanoid:LoadAnimation(animation)
wait(10)
animTrack:Play()
end

Also this is just for testing the animation and seeing if there is a way to do this.