Commonly, the overactive muscles are part of the posterior chain (the back of your neck, across the shoulders, spinal extensors, latissimus dorsi, hamstrings, and the calf muscles. The hip flexors also tend to overwork in order to stabilise the lumbopelvic area.
Since muscles connect two or more bones and often have more than one action or purpose, by trying to stabilise your posture they can affect and cause problems in other parts of your body. For instance, we find that difficulty lifting your arm above 90 degrees is mostly a latissimus dorsi over engagement due to misalignments of the lumbar spine. By contracting to stabilise the lumbar spine the latissimus muscle also causes dysfunction in the shoulder (since it is a pulling and shoulder extension muscle)
Over time, the muscles not only are over active but become shortened and adhesions can form in the fascia of the tissue resulting in stiffness and an inability to relax the muscle resulting in chronic dysfunction and a need for constant “soft tissue work”.
Stretching, massage and strengthening these muscles can help reduce the stress they are under but they will never properly relax unless the skeleton is returned back to alignment. Muscles that commonly become weak, underactive and atrophied are the deep neck flexors, abdominals and gluteal muscles. Improving your alignment returns tone and strength to these muscles in a way that rehabilitation exercises never can.
When your skeleton is misaligned, the muscles attached to them also can lose mechanical leverage so more strength is required to perform the same work. i.e you feel weak even though there is plenty of muscle present.
Poor alignment can also stretch the motor nerves that carry the signals to the muscles. Nerve tension prevents the full flow of electrical potentials to the muscle, further causing weakness.
Advanced BioStructural Correction addresses all of these aspects of strengthening in all parts of the body and affected areas to help your strength and conditioning reach new highs.