When you have a neck injury, like a whiplash injury, disc herniation, degeneration, or arthritis, because of pain and the inability to move normally, your body tries to protect your neck by creating a splint with muscle spasm. Over time, your neck muscles become weaker and weaker. This muscle weakness worsens the situation by creating poor biomechanics which in turn causes more pain and more muscle spasm and more weakness, and the cycle continues.
When your neck muscles are weak and you have to sit at your computer and hold your head up so it doesn’t fall on your desk, you have to use muscles that are tight and painful so being at your computer aggravates your neck pain and gives you a headache. Also, you will never overcome issues of your neck continually going out of place, or disc injuries, if your neck is too weak.
Medical research shows that 75% of people with chronic neck pain, from any cause, can get relief by strengthening their weak neck muscles. But how do you know if your neck muscles are weak and which ones you need to strengthen? If you strengthen muscles that are strong instead of the weak ones, you will further increase the imbalance and make things worse!