How could I rotate a player based on his spine's rotation?

Basically I am trying to make a script where player starts rotating on Y axis only when the spine's bone reaches a certain rotation.

Here's the code:

Code (CSharp):

1.         if (playerSpine.localEulerAngles.x <= rotLeftMax && playerSpine.localEulerAngles.x >= rotLeftMin || playerSpine.localEulerAngles.x == rotLeftMax)
2.                         transform.Rotate (0, -rotSpeed, 0);
3.         if (playerSpine.localEulerAngles.x <= rotRightMin && playerSpine.localEulerAngles.x >= rotRightMax || playerSpine.localEulerAngles.x == rotRightMax)
4.                         transform.Rotate (0, rotSpeed, 0);

The problem is that the rotating stops when it reaches the rotRightMax or rotLeftMax instead of still going.