FAQ: Extensor muscle strain (Muscle Strain in Forearm)

FAQ: Extensor muscle strain (Muscle Strain in Forearm)

October 21st

You don’t realise how much you use your forearm until it starts complaining. A jar lid that normally takes two seconds suddenly becomes a small project. A shopping bag feels heavier than it should. Even an afternoon spent clicking and typing can leave the back of your forearm feeling decidedly unhappy.

When that soreness sits along the back of the forearm and shows up with gripping, lifting or other hand movements, an extensor muscle strain is one possibility. Most aren’t particularly serious, although the muscle still needs a chance to settle before you start asking it to do more again.

Here are some of the questions we hear from patients at our Melbourne clinic, answered in much the same way we’d talk through them in the treatment room.

 

Extensor Muscle Strain Definition (also Muscle Strain in Forearm). There’s a simple way to get a feel for where your extensor muscles are working. Put your forearm down on a table with your palm facing the surface. Now lift your fingers and knuckles away from the table.

Place your other hand over the back of the forearm as you do it. You should feel the muscles underneath your fingers firm up. That’s the extensor muscle group doing its job.

These muscles run from around the outer part of the elbow down towards the wrist and fingers. They help lift the hand, but they have another job that’s easy to overlook. Whenever you grip something, they help keep the wrist in a stable position.

A strain means the muscle fibres have been injured. Sometimes they’ve simply been stretched beyond what they’re used to. In other cases, some of the fibres can tear. Strains are generally classified as mild, moderate or severe, although a large tear through the forearm muscles is relatively uncommon.

 

Where will I feel pain with an extensor muscle strain?

The sore spot is usually found along the fleshy part of the forearm, a couple of finger widths below the elbow. It’s not necessarily one tiny, perfectly defined point. You might describe it as an ache, a pulling sensation or a tight band through the muscle.

For some people, there’s a sharper reminder when they reach for something unexpectedly heavy. Picking up a kettle, for example, can be enough to make the area announce itself.

There may be a little swelling, particularly after a more sudden injury. Bruising isn’t as common and tends to be associated with an obvious incident rather than a gradual build-up of pain.

We also pay attention to whether the pain is actually in the muscle. If you point directly to the bony prominence on the outside of your elbow, rather than the softer tissue below it, the tendon may be contributing instead. That’s a pattern we can see with tennis elbow, which isn’t quite the same problem and may need a different rehabilitation approach.

 

What movements will I struggle to perform if I have strain in my extensor muscle?

Gripping is often where people notice it first. The reason can seem a little backwards. The painful movement isn’t always lifting your wrist. Sometimes it’s simply holding onto something tightly. When your fingers close around an object, the muscles on the back of your forearm switch on to help stop the wrist from folding forwards.

So seemingly harmless jobs can suddenly become irritating. Squeezing water from a tea towel. Carrying a couple of shopping bags. Giving someone a firm handshake. Turning a key that doesn’t want to turn.

You may notice the same thing when pouring a saucepan, pushing yourself up from a low chair or handling tools around the house.

Then there’s the desk. Someone can arrive at work feeling completely fine, only to find that by mid-afternoon the forearm has become increasingly uncomfortable.

Sport can expose the problem in a different way. Tennis backhands, golf swings, rows and deadlifts all ask the forearm extensors to work, sometimes repeatedly and under quite a bit of load.

 

Will I feel pain in any other regions of my body?

A straightforward muscle strain usually keeps the discomfort fairly close to the injured area.

The ache can wander a little towards the elbow or down towards the back of the wrist. After a busy day, the whole arm may simply feel tired or heavy.

There are some symptoms we’d look at differently. Numbness, pins and needles, or pain travelling down the arm from the neck aren’t typical features of an uncomplicated muscle strain. They can point towards nerve irritation, so they’re worth having assessed rather than automatically putting them down to a sore muscle.

 

How does an extensor muscle strain happen?

Sometimes you can name the exact moment it happened.

A box slips and you grab it before it hits the floor. A stuck drawer finally gives way. You catch yourself awkwardly and feel something pull. But that’s not always how it happens.

Quite often, the forearm has simply been doing more work than usual, over and over again. Perhaps you’ve spent a weekend gardening, started a new job involving repetitive hand use or accumulated several long nights at the computer. The muscle doesn’t necessarily complain at the time. You might only notice it the following morning.

That delayed appearance is one reason people often arrive wondering what on earth they did to it.

 

What things should I try initially once I’ve extensor muscle strain?

Think less about shutting the arm down and more about making its workload manageable.

For a few days, change the way you handle the things that aggravate it. Hold the kettle with two hands. Bring shopping bags closer to your body instead of letting them pull from your fingertips. Where practical, swap hands during repetitive tasks.

The arm still benefits from gentle movement. Slowly move your wrist up and down several times during the day, and open and close your hand. Nothing needs to be forced. The idea is to keep things moving without repeatedly provoking the pain.

Ice for 10 to 15 minutes during the first day or two may help settle the area. After that, some people find heat more comfortable. There isn’t a prize for choosing one over the other. Use whichever feels better for you.

Your desk setup is worth a look too. A keyboard that’s sitting too far away or a chair that’s slightly too low can leave the wrist held in an extended position for much longer than you realise.

 

What things should I try to avoid in the initial stages of an extensor muscle strain?

Pain gives you useful information here. If a movement produces a sharp pain, don’t keep pushing through it. Change the task, reduce the load or give the arm a break. A little awareness of the area is different from a sharp or escalating pain response.

We’d also hold off on aggressive stretching and deep massage early in the recovery. Newly irritated muscle fibres generally don’t appreciate being pulled or pushed hard.

There’s no need to swear off sport and exercise forever. Tennis, heavy gym work and demanding jobs around the house can gradually return once ordinary daily activities are comfortable.

And complete rest isn’t necessarily helpful either. An arm that spends days doing absolutely nothing can become stiff and lose strength, which doesn’t make the next stage of rehabilitation any easier.

 

What type of exercises or movements do I need to be stronger at to rehab the extensor muscle?

Early rehabilitation often starts with isometric work. The muscle contracts, but your wrist doesn’t actually move. One simple version is to place your opposite hand over the back of your sore hand and gently push upwards into it. Hold that effort for a few seconds, then release. It doesn’t look like much, but that’s part of the point. We’re introducing load without asking the muscle to move through a large range.

Once that’s comfortable, we can start adding movement. Rest your forearm on a table with your hand hanging over the edge and hold something light, such as a water bottle. Lift the hand and then lower it slowly, taking around three or four seconds on the way down.

That slow lowering phase is called eccentric loading. It gives the muscle and tendon a more demanding job as strength starts to return. Grip work can then progress from something forgiving, such as a soft ball or rolled towel, towards firmer resistance. Forearm rotation can be added too, using something light and controlled.

Eventually, rehabilitation should stop feeling like a collection of exercises and start resembling your actual life. Lifting a child into a car seat. Managing a full day at work. Returning to your sport without wondering whether your forearm is going to complain.

We may also strengthen the shoulder and upper back. Better support further up the arm can mean less unnecessary work for the forearm.

 

What other considerations contribute to strain of extensor muscle?

A sudden jump in workload is one of the first things we look for.

The details around that workload matter too. How is your desk arranged? What sort of tools or handles are you using? Is your racquet grip the right size? Are you squeezing harder than you need to?

The shoulder can be part of the picture as well. If it isn’t providing enough strength and stability, the forearm may end up picking up some of the slack.

Sleep and stress are also worth discussing. They don’t create a muscle strain on their own, but they can influence how well the body recovers and how strongly you experience pain.

 

What treatments can help relieve some pain or fast track my extensor muscle rehabilitation?

We start by figuring out what you’re actually dealing with. That means talking through how it began, what makes it worse and what you’ve had trouble doing since it started.

We’ll assess wrist and grip strength, examine the muscle and tendon, and consider the elbow, neck and nerves as well. The goal is to make sure the symptoms aren’t coming from somewhere else.

Depending on the assessment, treatment may include soft tissue techniques, joint mobilisation, dry needling or taping. A forearm brace or strap just below the elbow can sometimes reduce the demand on the muscle while you’re working or playing sport.

We may also make practical changes to your workstation, technique or workload. Sometimes changing how you approach a busy week makes a bigger difference than another treatment on the treatment table.

Hands-on treatment can help settle symptoms and make movement easier. The longer-term goal, however, is to restore the muscle’s capacity. Stronger, better-conditioned tissue is better prepared for the demands you’re asking it to handle.

 

What are the expected timeframes of rehabilitating extensor muscle?

There isn’t one recovery clock that applies to every forearm strain. A mild strain may settle within one to three weeks. Moderate injuries can take around four to eight weeks. A severe strain, particularly when the tendon is involved, may take considerably longer and sometimes several months.

Those timeframes are only a guide. Your age, general health, work and sporting demands, and how consistently you’re able to do your rehabilitation can all affect the process.

Recovery can also be a little untidy. You might feel good for several days and then have a flare-up after doing more than usual. One sore day doesn’t automatically mean you’ve damaged the muscle again or lost all the progress you’ve made.

If the forearm is still bothering you after a week or two, or it’s getting in the way of work, sport or ordinary jobs around the house, an assessment can help clarify what’s going on. Our Melbourne physiotherapists can identify what may be keeping the area irritated and build your rehabilitation around the activities you actually need to get back to. Book an assessment today.

 

This article is intended for general information and educational purposes only.