Listening to a teleseminar with Dr. Evan Osar on my commute today, I was reminded of an important concept when it comes to optimizing function. It has to do with learning to relax your musculoskeletal system, rather than creating tension.
I am sure that most of you have heard ad nauseum about the importance of engaging your core when performing functional activities. While a well-trained core means having the ability to reflexively stabilize your spine under demand and in the presence of change, one should not aim to walk around perpetually "braced". By doing so, you may be impeding your function rather than enhancing it. As much as it's important to be able to engage your stabilizing muscles at the appropriate times, it's also important to be able to relax your phasic (mover) muscles when not being called on to perform. Muscles in a continual heightened state might inhibit your movement and may contribute to myofascial discomfort.
Try this simple drill. When you're lying in bed tonight, close your eyes. Then, starting with the crown of your head, focus on each area of your body, one segment at a time, working your way down to your toes. Try to allow that section to completely relax and "melt" into the surface of your bed. Spend about 30-60 seconds on each body area until you are completely relaxed in that segment. What you will discover is that you are likely unintentionally holding tension in certain areas. This is a simple yet effective drill to bring some awareness and control to your body.
Remember, it's not always about firing things up to achieve optimal function and performance. Sometimes it's about doing the exact opposite.