Hello There, It Is very important While doing Assessment To know The strength of muscle. But What if you can't able to check the strength of Muscle It would be complicated to make a rehabilitation program for this type of patient in which you can't able to perform muscle strength testing due to any reason so, here is the technique to check the functional muscle strength by making patient perform simple task and assessing the strength of muscle The reference for this technique and grading is Muscle and sensory testing by Nancy Berryman Reese Functional Assessment of Muscle by Harsh Rami on Scribd