Task: Question Answering
Input (English): Context: Apparently I have weak butt muscles . ( ermmmm okay ) So I have to do these exercises with this green rubber band thingy . And because we figured out that the pain on my middle left is muscle pain , where the muscles on my left side are stretched around the curved spine , and the lower right is joint pain , where the bones are all compressed , I was also given a back strengthening exercise on top of everything else . It 's not that I mind doing all these exercises but they leave me feeling winded and tired afterwards and maybe I just have n't reached the next level yet . 
Question: Who may have given them exercises to do at home ?
Output (English): A physical therapist .