How to future proof your wrists

Modern life is ruining our wrists. We can all do something about it, but it helps to start early.

It began with a dull ache. Over the course of a summer, it rapidly progressed to an arm-juddering pain, radiating through my left hand every time I struck a tennis ball or even attempted to open a door.

I was 18 at that point, and playing competitive tennis was an important part of my life, but I'd just experienced an injury that would plague me for years. Now, nearly two decades later, it could increase my risk of developing wrist arthritis. Such problems are surprisingly common in mid to later life. 

Our wrists are remarkably adaptable. They have the strength to allow us to lift heavy objects (including the World Record of 23,178 tonnes), the flexibility to enable us to hit rogue balls during racquet sports, and the fine control to make tasks like painting possible.

From typing to holding a coffee cup, functional wrists are essential to normal everyday life. But they are easily damaged, and we all need to start thinking about them earlier in life than you’d expect. Here's how to protect yours, so you can continue taking them for granted for years to come.

We may think of the wrist as a single joint, but it is actually a complex, comprising multiple smaller joints. These are formed of eight small bones known as the carpal bones, the two long bones of the forearm, and the bases of the five metacarpal bones within the palm. 

"Every ligament and every bone in the wrist that connects it to your forearm bones are really in a very finely-tuned balance," says Andrew Abadeer, an assistant professor at the University of South Florida. "When that goes awry, that's when wrist arthritis starts to develop."

Injuries, combined with the effects of ageing, can disrupt this fragile equilibrium.

Simply avoiding arthritis is a major reason for maintaining your wrist health. There are many different kinds, but it typically takes one of three forms: rheumatoid arthritis, osteoarthritis, or post-traumatic arthritis. The latter two ailments occur when the cartilage cushioning the small bones within the wrist becomes damaged, or the bones become misaligned. Both are linked to the long-term effects of injuries to the ligaments and bones within the wrist, or lingering inflammation due to overuse through repetitive manual tasks. 

Sara Larsson, a researcher who studies wrist rehabilitation at Lund University, explains that this trauma may be as simple as a repetitive twisting movement or tripping and falling on an outstretched hand. "I see many people who had an injury when they were young, everything appeared to be fine again, and then 20 years later, they develop problems."

Arthritis of the wrist has been estimated to affect as many as one in seven Americans. It is not only highly painful, but makes it harder for people to dress themselves and cut their own food, with the psychological burden being linked to depression.

Abadeer describes the wrist as being a "sentinel joint" which can reflect early signs of declining health within the rest of the body. About half of all patients who develop rheumatoid arthritis first feel the effects the disease in their wrist before it progresses to other joints. Because the brain devotes a large region of the cortex, known as the cortical homunculus, to mapping the hands, wrist and fingers, grip strength can reflect brain structure and cognitive health.

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