Exercises After Hip & Knee Replacement

Here's something I tell every patient before surgery, and again afterward: movement is one of the most important parts of your recovery. A modern hip or knee replacement gives you the potential for an excellent result — but it's the exercise and activity you do afterward that turns that potential into real strength, motion, and confidence. Exercise and healing go hand in hand.

This guide explains why the exercises matter, what they're working toward, and how recovery tends to progress. It's the big-picture education — the specific exercises, and how many and how often, come from your surgeon and physical therapist (and the downloadable program below).

Why exercises matter after joint replacement

The exercises aren't busywork — each one is working toward something specific. Together they help you:

That last one matters more than people expect. A lot of recovery is simply relearning to trust the leg — and the way you earn that trust back is by using it, a little more each week.

The early recovery phase

In the first stretch after surgery, the goal isn't to push hard — it's to wake the leg up and keep things moving while the joint heals. Early exercise tends to fall into a few gentle categories:

• Gentle muscle activation — simple movements that switch the muscles around the joint back on without strain.
• Circulation exercises — easy ankle and foot movements that keep blood flowing and help prevent clots.
• Range-of-motion work — gentle bending and straightening to keep the joint supple as it heals.

The theme of this phase is staying active while protecting the healing joint — frequent, easy movement rather than anything strenuous. It pairs closely with what to expect in your first days at home and with managing swelling after surgery.

Building strength and function

As the early weeks pass and comfort improves, recovery shifts from gentle motion toward standing strength and real-world function. Exercises progress from lying and seated movements to standing ones — rising from a chair, standing balance and leg work — that rebuild the strength you use all day long.

The aim of this phase is practical: better balance, steadier confidence on your feet, and a return to the everyday activities that matter to you. For the week-by-week picture of how this unfolds, see the hip recovery timeline and knee recovery timeline.

Hip recovery vs. knee recovery — an important difference

This is worth understanding, because recovering a knee and recovering a hip are not quite the same job. The exercises share a foundation, but the emphasis differs in a meaningful way.

Knee replacement: motion is the priority

After a knee replacement, the central task is regaining range of motion — both bending (flexion) and, just as importantly, fully straightening (extension). The reason it gets so much attention is simple: stiffness is the enemy. A knee that's allowed to stiffen early is much harder to loosen later, which is why gentle, consistent motion work — done steadily, every day — is the heart of knee recovery.

Hip replacement: strength and mobility

Hip recovery is less a battle against stiffness and more about restoring strength and mobility — particularly the hip's stabilizing muscles (the abductors) that keep you level and prevent a limp. The focus is on rebuilding those muscles, restoring smooth walking mechanics, and returning to confident, functional movement. With the muscle-sparing direct anterior approach Dr. Harb often uses, many patients regain comfortable function quickly.

Walking: the foundation of recovery

If exercises are the structured part of recovery, walking is the foundation underneath all of it. It's the single best, simplest thing you can do — it rebuilds strength and stride, keeps blood moving, eases stiffness, and steadily rebuilds your confidence.

• Start gentle and build endurance — short, frequent walks at first, gradually getting longer as you're able.
• Consistency over intensity — regular, easy walks beat occasional hard ones every time.
• Use your walker or cane until your balance and strength make it unnecessary — avoiding a fall is always the priority.

Walking is also the bridge back to the life you're aiming for — whether that's getting back on the golf course or traveling comfortably again.

What patients commonly tell me

Recovery comes with a very recognizable set of thoughts — and most of them are completely normal:

The “too much / too little” worry is the most common of all — and the answer is the steady middle, with your physical therapist helping you find the right pace.

Your exercise program

This page explains the concepts behind recovery. The specific exercises prescribed for you — the movements, and how many and how often — come from your surgeon and your physical therapist, tailored to you and your procedure.

From Dr. Harb

I want to be honest with you about the shape of recovery, because it helps to know it in advance: it's rarely a perfectly straight line. You'll have days where you feel strong and days where you feel sore or stuck — sometimes back to back. That's not a setback; that's simply what healing looks like.

Recovery starts before surgery, too — the stronger you go in, the smoother you tend to come out. If you're still preparing, see how to prepare for joint replacement surgery. And remember the goal of all of this: not just a healed joint, but a confident return to the active life you want.