42 Lower Kings Road, Berkhamsted Herts HP4 2AA
Simon King

Simon King

Over 30 years Simon King has developed a deep and unique understanding of the importance of muscle reflexes and muscle strength in the maintenance of a healthy and pain-free body. He uses innovative treatment strategies to help patients become stronger and healthier so they can exercise and live without fear of illness or injury.

Did You Know?

Nerve messages that go TO the brain are called AFFERENT (towards), while those that come FROM the brain are called EFFERENT (away from).

How to Be Naturally Strong and Pain Free


“When you’ve tried everything, we can still help.”

Do you exercise regularly, eat well, and live a great lifestyle but still suffer from aches and pains? It can be frustrating to feel like you’re doing everything “right” but not seeing the results you want.

You might have tried everything you know to fix the problem, but still find yourself living with pain and discomfort. This can prevent you from pursuing your dreams and achieving your goals.

The traditional approach to medicine often treats every complaint as a separate condition. But what if we approached health differently and focused on treating your ability to resist pain, disease, and injury?

At the core of this approach is the idea that health means more than just being pain-free. It should also mean that you can prevent future problems and confidently pursue the activities you enjoy without fear of injury.

The good news is that you can become stronger and healthier without exercise alone. In fact, exercise can actually be harmful if you’re not healthy to begin with.

That’s where Afferentology comes in. Afferentology is the diagnosis and treatment of abnormal muscle tone, which is essential for protecting our bodies from injury and supporting all movement.

Low muscle tone can make us more vulnerable to injury and cause joint damage over time. It can also affect the glands and organs, leading to fatigue and susceptibility to infections. On the other hand, too much muscle tone can cause aches and cramping.

During a consultation, we start with a full assessment of muscle tone, including neurological and orthopedic testing. If areas of low muscle tone or increased tone are found, we work to determine the underlying cause and develop a plan to fix it.

While there’s no one-size-fits-all solution for low muscle tone, addressing this issue can leave you pain-free and feeling confident enough to pursue your goals and dreams. So why settle for living with pain and discomfort when there’s a better way?


gluteal muscle testing
Testing the gluteal, hamstring and low back muscles which are very important for running, walking, sitting and standing.


The type of treatment offered will always depend on the results of the examination and will focus on providing permanent solutions to the most pressing issues, to give the most benefit for the least effort and expense.

Treatment will be different at every visit, progressing towards a time when no treatment is necessary because your body is working perfectly (or as good as it can).

Treatment is very safe and always reversible. It may involve:

  • Removing foreign bodies from the skin
  • Stimulating joints and muscles (manipulation and adjustment)
  • Identifying and correcting nutritional deficiencies
  • Identifying and correcting food intolerances
  • Identifying and correcting environmental toxins  

Make an Appointment

Simon is available at the Naturality Wellness Centre in Berkhamsted on Mondays, Wednesdays, Thursdays and Saturdays.

Sessions are designed to formulate a diagnosis and a plan for treatment which may involve the removal of foreign bodies (especially metal), gentle manipulation, exercise, nutrition, or environmental change.

Special interests are sports injuries, sports performance, chronic pain and disability.

Make An Appointment

Tel 01442 800400

Initial Consultation, Examination and Treatment £150 (allow 45 mins)

Follow-up Examination and Treatment £75 – £50 (allow 30 mins)

Simon King is an expert in using Afferentology to treat and prevent musckuloskeletal injuries.

Over thirty years in practice, Simon has always strived to understand the true origins of disease and ill health. Fascinated by muscle testing and the connections between nerves and muscles, he set about learning all he could about Applied Kinesiology and eventually became a diplomate of the ICAK in 1996. He has gone on to teach hundreds of practitioners the principles of Proprioceptive Medicine and Afferent Input.

Simon is available Mondays, Wednesdays, Thursdays and Saturdays. His specialties include sports injuries, sports performance enhancement, chronic pain and disability.





  • In my mid 50s and fairly sporty – I developed a hip ache, aching joints, discomfort in my foot, pain when kneeling and various other “niggles” which physiotherapists and my osteopath couldn’t find a long term fix for. My Yoga instructor suggested I visit this clinic and saw a kinesiologist. I googled it initially and had it not been for the recommendation from her I would have been put off by the on line video of kinesiology in practice as their appeared to be very little “hands on” treatment. However, the result was astonishing! After the first half an hour of treatment I skipped out of the clinic without foot pain, was diagnosed and treated for thyroid problems (who knew?) had a hernia sorted out (again, a surprise to me) and my hip pain totally disappeared. Since then I’ve had one more visit after having a mercury filling removed from a tooth to finalise all the corrections and complete the treatment and feel better than ever. I realise now that just because we’re getting older we should not accept aches and pains as a natural progession of ageing! I now have a three month maintenance check up to ensure everything is working correctly and prevent future potential problems from developing. Worth every penny. –

    It turns out aches and pains aren't normal
  • I’ve been applying your afferent input technique for a couple of months now, and am happily amazed by some of the results!

    Several of my “old” patients are now a lot better because of a nervous system irritant that was still hindering them. My favorite case is still a 16 year old girl with a two year history of headaches, dizzyness and a once-a-month attack of epilepsia. After taking out her belly button piercing and 5 adjustments she hasn’t had a headache, hasn’t been dizzy nor had epilepsia. Super! As a result, now I am treating her mother and father as well.

    Health Professionals love it
    Annette Burke - Chiropractor, Holland.
  • 13 years ago, I had a car accident where I apparently suffered whiplash. As a result, I suffered acute back problems, culminating in me slipping two discs when I fell down the stairs. I spent thousands of pounds on reflexology, Chinese homeopathy… I just wanted to find something that worked! My local chiropractor thought it might be linked to my crown (the same year as my accident, I’d had a metal crown put in) and put me in touch with Simon.

    I can remember my husband saying at the time what have you been told now! So we both went and visited Simon in Berkhamsted, and Simon asked me to do the dumbbell test, where he asked me to lift a dumbbell with my left and then my right hand. My right hand just wouldn’t move until he told me to cover my crown, and then yes, I could move it! On Simon’s advice, I had the crown removed and replaced with a non-metal version. I can honestly say that my back has improved ten-fold, instantly my strength came back… I’m no longer on tablets every day and I’m not crying every day.

    I'm not Crying Every Day
    Karen, Stockport

Simon's articles

Osteoarthritis of the hips

The Most Important Tests for Low Back Pain

X-Rays and MRI scans are popular tests for low back pain but they may not be the best tests for an accurate diagnosis.
Read More
Osteoarthritis of the Knee

The Best Tests for Knee Osteoarthritis

It's easy to find the cause of osteoarthritis when you use afferent input muscle testing. Find out how it works.
Read More
Osteoarthritis of the Knee

Why You’re Still Hurting

If your pain has lasted more than 3 months, or if there are certain movements you can’t do any more, it’s important to have your muscles checked for inhibition.
Read More

How to Increase Flexibility Without Stretching

Sometimes no amount of stretching and foam rolling will make you more supple. Watch this video to find out muscle testing can identify the hidden reasons behind your lack of...
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Find out whether you have osteoarthritis (wear and tear) or inflammatory arthritis. Links to your best treatment options in Berkhamsted.
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Learn About Afferent Input

 Simon King specialises in Afferent Input. Every nerve message that controls your movement and you thoughts has to start from somewhere. So do you know what produces nerve messages? Hint...
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Is Metal Part of the Problem?

Ever wondered why you’re feeling weak and out of whack? Here are the top five most surprising causes of muscle weakness and pain. With a painless examination, an Afferent Input...
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Could it be Dentistry?

For over 30 years, Simon King, our musculoskeletal health specialist, has been working out what really causes people to be ill and injured. Not just how to treat them but...
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