We are moving way from the term muscle balance to muscle synergies. Check out this informative video with Mark Comerford discussing muscle classification and movement function subgroups; he discussed muscles and their functional roles and begins to explore the patterns of impairments we see in these muscles.
This classification helps us to how synergistic patterns change in the presence of pain and movement impairments and how this information can help us design rehabilitation
For more details on the KC process and how we explore muscle synergies and the effect of dysfunction on pain and dysfunction on our patients health click here