Tennis elbow: what it is, and the loading that actually works

A tennis elbow that has settled down is not the same as one that has recovered. Resting takes the pain away and takes the tendon’s capacity with it, which is why it comes straight back on the first proper backhand. What actually rebuilds it is load — gripping and lowering, heavier over weeks, at a rate the tendon will accept. Getting that rate right by feel is the hard part, and it is the part this does for you.

What it actually is

Tennis elbow is a problem with the tendon that attaches your wrist extensor muscles to the bony bump on the outside of your elbow. Despite the "-itis" in the older name, it is not mainly inflammation. The tendon has been asked to do more than its capacity allows, and the collagen inside it has become disorganised in response. That distinction matters, because it is why anti-inflammatories and rest disappoint so many people: neither addresses capacity.

Who gets it, and what it feels like

Most people who get it do not play tennis. Anyone who grips and extends the wrist repeatedly is a candidate — trades, desk work with a poor mouse position, climbing, lifting. In racquet sports it is most often the backhand, and most often someone who has recently changed racquet, string tension, or how much they play. It usually starts as a vague ache after activity, becomes pain during activity, and ends up hurting when you pick up a kettle.

What sets it off

The movements people most often report as the trigger, in roughly the order they come up:

• Backhand
• Serve
• Forehand
• Gripping things
• Lifting
• Typing / mouse work

When it is not this

Everything above assumes a tendon that is overloaded rather than something else wearing the same costume. These are the patterns that do not behave like a tendon problem, and any one of them is a reason to be assessed in person before loading anything:

• Numbness, tingling, or pins and needles in your hand or fingers. Tendon problems do not cause numbness. Symptoms in the hand point at a nerve, which needs a different assessment and a different plan.
• Neck pain that travels down into the arm. Arm pain referred from the neck can feel exactly like tennis elbow, and loading the elbow will not touch it.
• Real weakness — dropping things, or unable to grip at all. Weakness beyond pain-limited grip suggests a nerve problem or a tendon rupture rather than tendinopathy.
• The elbow locks, catches, or gives way. Mechanical locking points to something inside the joint, which loading exercises will not resolve.
• It started suddenly — a fall, a knock, or a pop you felt. A sudden mechanical onset suggests something tore or broke rather than gradually overloaded, and that has to be examined before it is loaded. This is the difference between a tendon that is irritable and a tendon that is no longer attached.
• Visible deformity, significant swelling, or heat around the joint. Swelling and heat are not typical of tendinopathy, and can indicate infection or an inflammatory joint problem.
• Unrelenting pain at night that wakes you and will not settle. Pain that does not ease with rest or position does not follow the tendon pattern and warrants a proper look.

Why resting it does not work

Rest reliably reduces pain, which is why it feels like the answer. The problem is what it does to capacity: a tendon that is not loaded gets weaker, and the muscle around it gets weaker faster. So the pain settles, you return to what you were doing, and the tendon now has even less tolerance than it had when it first complained. That is the cycle most people are in by the time they start looking things up.

What tendons respond to is load — applied heavily enough to be a stimulus, slowly enough to be controlled, and progressed only when the previous step has settled. That last part is the whole game, and it is where most self-directed attempts come apart.

What a proper progression looks like

Four phases. The order is not arbitrary: each one is only useful once the one before it has stopped being provocative.

The minimum time across those phases is around 8 weeks, and that is a floor rather than an estimate. Tendons need elapsed time as well as clean sessions, which is why a program that lets you skip ahead on enthusiasm is not doing you a favour.

The exercises

These are the movements the progression is built from. The cue matters more than the name — tempo is most of the stimulus in tendon work, and doing these fast turns them into something else entirely.

How much pain is acceptable

Up to about 5 out of 10 during loading is acceptable and expected. The number that actually decides whether a session was a good one is the next morning: if it has settled back to your normal baseline, that session was fine regardless of how it felt at the time. If it has not, that was too much — whatever the pain score said during it.

This is the rule most people get wrong in both directions. Some stop at any discomfort and never load enough to change anything; others push through a 9 and wonder why it is worse a fortnight later.

When to see someone

If any of the patterns in the section above apply, if it is getting worse rather than settling, or if it simply is not matching what is described here, see a physiotherapist or doctor. This page is general education about a common problem; it is not an assessment of yours, and it cannot be.