The head and neck muscular system is a complex anatomical structure and has apparent muscle redundancy; that is, more head and neck muscle than degrees of freedom. It is been postulated that individuals exhibit a large variation of neck muscle activation strategies for accomplishing the same task intra individually, as well as between subjects. The health practitioner’s return-to-play protocol after a concussion, whiplash, nerve or muscle trauma must contain a measurable strength component to restore each muscle to normalcy, redressing this tendency to substitute by the injured athlete.

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