Knee Strengthening Exercises: What a Physiotherapist Actually Prescribes
Type "knee strengthening exercises" into Google and you'll find thousands of articles recommending the same five moves - usually squats, lunges, leg raises, calf raises, and bridges. They're not wrong. But they're missing something crucial: context.
As physiotherapists, we don't hand out the same exercise list to every patient who walks through our door in Oakville. The retired runner with patellofemoral pain syndrome needs a very different program than the 17-year-old soccer player six weeks post-ACL reconstruction. The desk worker whose knee aches after a 2 km walk is not the same as the weekend warrior whose knee swells after basketball.
So rather than give you another generic list, we want to show you how we think when we prescribe knee exercises - and give you exercises that are grounded in that clinical reasoning.
CLINICAL NOTE
The exercises below are appropriate for most people with general knee weakness or mild knee discomfort. They are not a substitute for a physiotherapy assessment. If your knee is acutely swollen, locking, giving way, or painful at rest, please book an appointment before beginning any exercise program.
Why the Hip Is the Real Star of Knee Rehab
Here's the thing most generic exercise articles skip over: knee problems are almost always a hip problem too. The knee sits between the hip and the ankle, and it does whatever those joints tell it to do. When the hip - specifically the glute medius and external rotators - is weak, the knee collapses inward under load. That inward drift is one of the primary drivers of patellofemoral pain, IT band syndrome, and ACL injury risk.
This is why at Elevate, we never treat the knee in isolation. Every knee program we write includes hip work.
The Exercises We Actually Prescribe
Below are six exercises we regularly use with our Oakville patients, organized from foundational to more demanding. We've included the clinical rationale for each, because understanding why you're doing an exercise is just as important as doing it correctly.
01 Glute Bridge
The glute bridge is where almost every knee rehab program at our clinic begins. It activates the gluteus maximus and hamstrings in a non-weight-bearing position, making it safe for acutely irritated knees while still building the posterior chain strength that protects the joint.
We also use it as a movement screen, patients who can't maintain a neutral pelvis during a bridge almost always have hip control issues contributing to their knee pain.
How to do it: Lie on your back, knees bent, feet flat and hip-width apart. Drive through your heels to lift your hips until your body forms a straight line from shoulders to knees. Squeeze your glutes at the top for 2 seconds. Lower slowly.
Sets/reps: 3 sets × 12–15 reps. Progress to single-leg bridge when this feels easy.
02 Side-Lying Hip Abduction
This is our go-to for isolating the glute medius - the muscle most responsible for keeping your knee tracking over your second toe during any single-leg activity like walking, stairs, or running. Weakness here is one of the most consistent findings in patients with patellofemoral pain and IT band syndrome.
It sounds simple. It consistently humbles people who haven't been doing it.
How to do it: Lie on your side, body in a straight line. Keep your top leg straight and your toes pointing slightly downward (not toward the ceiling - that changes the muscle emphasis). Lift your top leg to about 35–40 degrees, hold 1 second, lower with control.
Sets/reps: 3 sets × 15 reps each side. Add a resistance band above the knee to progress.
03 Terminal Knee Extension (TKE)
This one is almost never in generic exercise articles, it's one of the most targeted quadriceps exercises we have for the last 30 degrees of knee extension, which is where the VMO (the teardrop-shaped quad muscle on the inner knee) does most of its work. VMO weakness is directly linked to kneecap tracking problems.
We prescribe TKEs frequently for patellofemoral pain, post-surgical rehab, and patients who report their knee "feels unstable" at near-full extension.
How to do it: Anchor a resistance band at knee height behind you. Loop it around the back of your knee. Step forward to create tension. Starting with a slightly bent knee, straighten your leg fully by contracting your quad - focus on the inner quad. Control the return.
Sets/reps: 3 sets × 15–20 reps. This quality of contraction matters more than load.
04 Lateral Band Walk
Where hip abduction lying down builds basic glute medius strength, the lateral band walk trains it in a functional, weight-bearing pattern. This is closer to what your hip actually has to do during sport and daily life - resist inward collapse under load, dynamically, with every step.
We use this heavily with runners, basketball players, and anyone returning from a lower limb injury. It's also an excellent warm-up before any lower body training session.
How to do it: Place a resistance band just above your ankles or above your knees. Soft bend in the knees, slight forward lean at the hips, chest up. Step laterally, lead foot out, trail foot follows - maintaining consistent band tension throughout. Do not let your feet come together between steps.
Sets/reps: 3 sets × 12–15 steps each direction.
05 Bulgarian Split Squat
When patients are ready for serious single-leg loading, the Bulgarian split squat is one of our favorite tools. It builds quad, glute, and hip strength in a way that closely mirrors the demands of stairs, running, and sport - and it exposes and corrects side-to-side strength imbalances that bilateral squats can hide.
We're deliberate about when we introduce this. It's not for acute pain flare-ups. But for patients in later-stage rehab or injury prevention, it's hard to beat.
How to do it: Place your rear foot on a bench or elevated surface. Front foot far enough forward that your shin stays vertical at the bottom. Lower your back knee toward the floor with control, keeping your torso upright and your front knee tracking over your second toe. Drive through your front heel to return.
Sets/reps: 3 sets × 8–10 reps each side. Add dumbbells to progress.
06 Nordic Hamstring Curl
The hamstrings are the ACL's best friend. They act as a dynamic restraint on forward tibial translation, meaning they protect the ACL from the same forces that tear it. The Nordic hamstring curl is one of the most evidence-backed exercises for hamstring injury prevention, and it's a staple in our ACL rehab programs.
It is hard. We tell patients that upfront. But the research on it for reducing hamstring strain rates in athletes is convincing enough that it earns its place in almost every performance-focused program we write.
How to do it: Kneel on a mat, ankles anchored under a fixed surface or held by a partner. Keeping your body rigid from knees to head, lower your torso toward the floor as slowly as you can. Catch yourself with your hands, push back up. The goal is to control the descent.
Sets/reps: Start with 2–3 sets × 4–6 slow reps. This exercise rewards patience over volume.
When Exercises Aren't Enough
Self-directed exercise is genuinely valuable, we'd rather you be doing something than nothing. But there are clear signs that you need more than a YouTube routine:
Your knee swells after activity. Swelling is your joint's distress signal. It means something is being overloaded or irritated, and generic exercises will often make it worse, not better.
our pain changes location or character. Pain that moves around, or that shifts from achy to sharp, usually signals something more specific that needs assessment.
You've been dealing with it for more than 6 weeks. The body is remarkably good at healing straightforward injuries. If your knee hasn't improved meaningfully in six weeks of rest and basic movement, it's not going to heal on its own.
You're compensating. If you notice yourself favouring one leg, altering your gait, or avoiding certain movements to protect your knee, that compensation pattern becomes its own problem over time.
A NOTE ON "PUSHING THROUGH" PAIN
Some discomfort during exercise is normal and expected: muscle fatigue, a mild 3/10 ache that resolves within an hour of stopping. Sharp pain, pain above a 4–5/10, or pain that persists for hours after exercise are signals to stop and get assessed. Pain is information, not a weakness to overcome.
The Bottom Line
Strong knees don't come from doing the same exercises everyone else is doing. They come from identifying the specific weaknesses and movement patterns driving your pain, and targeting those with precision.
The exercises above are a solid foundation. But if you want a program built specifically for your knee, your history, and your goals, that's exactly what we do at Elevate.
Not Sure Where Your Knee Pain Is Coming From?
Book a free discovery visit at our Oakville clinic. No referral needed. One of our therapists will assess your movement, identify what's driving your symptoms, and build a plan designed for you.
Book Your Free Discovery Visit
Or call us at (289) 835-2949
710 Dorval Drive #520, Oakville
