Salam,
It is interesting to note that no where in any current form do we have today has God ever described how to pray physically. God does give us guidance on what to say. All through the Quran are little snippets of prayer and Jesus gave us the Lord's Prayer when asked how to pray. So perhaps it does not matter what we physically do during our time of prayer but what is in our hearts and minds and the intention of having a moment with our Creator. Humbling ourselves in prostration puts on a good show but it means nothing if the intention from within does not exist.