How could i make an animation play while sprinting, but once in idle the player stops sprinting?

So i want the player to play an animation while he is sprinting but if he stops he goes in idle, i am using the CTRL key for this, you enable and disable sprinting with it, i don't really know how to do it correctly, i tried doing Humanoid.Running or changing the animate script inside the Character but sometimes it doesn't work correctly, how can i do it right?

If i directly try to play the animation once the Sprinting is turned on, the animation will be on a loop, so if the player stops the animation will still play

Local Script - (Inside StarterCharacterScripts)

local Character = script.Parent.Parent or script.Parent.Parent:Wait()
local Humanoid = Character:FindFirstChild("Humanoid")
local Animation = Humanoid:LoadAnimation(script:WaitForChild("Animation"))
local UIS = game:GetService("UserInputService")
local IsBlocking = script.Parent:WaitForChild("ValueChecks"):WaitForChild("IsBlocking")
local IsDashing = script.Parent:WaitForChild("ValueChecks"):WaitForChild("IsDashing")
local RS = game:GetService("ReplicatedStorage")
local Activated = false
local Check = true

UIS.InputBegan:Connect(function(input, IsTyping)
	if Activated == false then
	if Check == true and IsTyping == false then
		if input.KeyCode == Enum.KeyCode.LeftControl then
			if IsDashing.Value == false and IsBlocking.Value == false then
			Check = false
			Activated = true
			Humanoid.WalkSpeed = Humanoid.WalkSpeed * 2
			end
		end
		end
	end
end)

UIS.InputBegan:Connect(function(input, IsTyping)
	if Activated == true then		print("h1")
		if IsTyping == false then
			if input.KeyCode == Enum.KeyCode.LeftControl then
				if IsDashing.Value == false and IsBlocking.Value == false then
			    Activated = false
				Humanoid.WalkSpeed = Humanoid.WalkSpeed / 2
				wait(0.5)
				Check = true
			end
			end
		end
	   end
end)