8 Of The Best Exercises For Knee Arthritis (2026 Clinician-Approved Guide)

Knee arthritis can feel like a life sentence of stiffness and pain, but it doesn't have to be. While rest might seem intuitive when your joints ache, targeted movement is one of the most powerful, non-invasive tools available to manage symptoms, strengthen your knees, and reclaim your quality of life. Inactivity weakens the very muscles that support and stabilise the knee joint, often leading to a vicious cycle of increased instability and worsening pain. Breaking this cycle requires a proactive, strategic approach to exercise.

This comprehensive guide, informed by clinical best practices, is designed to be your blueprint. We will move beyond generic advice to detail the best exercises for knee arthritis, providing a clear, actionable plan for building strength and improving function. Many of the principles for strengthening knee-supporting structures overlap with other conditions; for instance, understanding proper form is also critical in routines outlining exercises for runner's knee, highlighting the universal importance of muscle support for joint health.

Inside, you will find eight highly effective exercises, each broken down with:

• Step-by-step instructions and proper execution cues.
• Recommended sets, repetitions, and frequency.
• Modifications for pain or limited mobility, and progressions for when you get stronger.
• Common form errors to avoid, ensuring you get the maximum benefit without risking injury.

We will also cover essential supporting elements, including warm-up and cool-down routines, red flags that indicate you should see a clinician, and practical tips for integrating topical pain relief to manage discomfort and keep you moving confidently.

1. Water Aerobics and Pool Walking

For individuals navigating the pain and stiffness of knee arthritis, the very idea of exercise can seem daunting. Water-based activities like aerobics and pool walking offer a uniquely supportive environment, making them one of the best exercises for knee arthritis. The natural buoyancy of water significantly reduces the gravitational load on your joints; when submerged to your waist, you bear only 50% of your body weight, and this drops to just 10% when submerged to your neck.

This reduction in joint stress allows for a greater, more comfortable range of motion than is often possible on land. The water also provides gentle, consistent resistance from all directions, which helps to strengthen the muscles surrounding the knee-including the quadriceps, hamstrings, and glutes-without the impact of ground-based exercises.

Why It Works for Knee Arthritis

Aquatic exercise creates a powerful combination of support and resistance. The hydrostatic pressure of the water can help reduce swelling and improve circulation in the legs, while the warmth of a therapeutic pool (typically 33-36°C) can soothe stiff joints and ease muscle tension. This makes it an ideal starting point for those with significant pain or limited mobility, serving as a safe bridge to more challenging land-based activities.

Getting Started with Aquatic Exercise

• Frequency and Duration: Aim for 2-3 sessions per week, starting with 20-30 minutes per session. As your strength and endurance improve, you can gradually increase the duration.
• Finding a Program: Look for specialized classes at local community centres, YMCAs, or rehabilitation clinics. Organizations like the Arthritis Society in Canada sometimes offer specific aquatic programs designed for joint health.
• Warm-Up: Even in the water, a warm-up is crucial. Before getting in the pool, perform some gentle stretches like quad and calf stretches. Once in the water, start with several minutes of slow walking to prepare your body.

Practical Tips for Success

• Use Flotation Devices: If you feel unstable, a pool noodle or flotation belt can provide extra support and confidence as you move.
• Manage Discomfort: For managing transient pain, consider applying a topical analgesic like MEDISTIK before your session to warm up the muscles or after to soothe any post-exercise discomfort. Its targeted application can help manage inflammation without systemic side effects.
• Listen to Your Body: The principle of "no pain, no gain" does not apply here. You should feel the muscles working, but you should not experience sharp or increased joint pain. If a particular movement hurts, modify it or skip it.
• Stay Hydrated: You can still become dehydrated while exercising in water, so be sure to drink plenty of fluids before and after your pool session.

2. Straight Leg Raises

When movement itself feels like the enemy, an exercise that strengthens key muscles without actually bending the arthritic joint is invaluable. Straight leg raises are a foundational, low-impact exercise perfect for this purpose. This movement isolates and strengthens the quadriceps muscles-the large muscles at the front of your thigh-which act as the primary shock absorbers and stabilizers for your knee.

By building stronger quads, you directly reduce the stress and load placed on the damaged cartilage within the knee joint. This makes straight leg raises one of the best exercises for knee arthritis, often prescribed in physical therapy clinics across Canada as a first step in rehabilitation.

Why It Works for Knee Arthritis

The brilliance of the straight leg raise lies in its isometric nature. You are contracting and strengthening the quadriceps without flexion or extension of the knee, which prevents irritation of the joint. This targeted strengthening enhances knee stability, improves function, and can significantly decrease pain during daily activities like walking or climbing stairs. It’s a safe, effective way to build the muscular support your knee desperately needs.

Getting Started with Straight Leg Raises

• Frequency and Duration: Aim to perform 3 sets of 10-15 repetitions on each leg, once daily. Consistency is more important than intensity.
• Execution: Lie on your back on a firm surface. Bend one knee, keeping that foot flat on the floor. Keep the other leg straight and slowly lift it to the height of your bent knee. Hold for 2-3 seconds, then slowly lower it back down.
• Progression: Start with no weight. As you get stronger, you can add light ankle weights, beginning with 1-2 lbs and gradually increasing as it becomes easier.

Practical Tips for Success

• Engage the Quad: Before you lift, consciously tighten your thigh muscle (quadriceps) and point your toes toward the ceiling. Maintain this contraction throughout the entire movement.
• Control the Motion: Avoid using momentum. The movement should be slow and controlled, both on the way up and on the way down. This maximizes muscle engagement and protects your lower back.
• Prepare Your Muscles: To help prepare the quadriceps for activity, consider applying a topical analgesic like MEDISTIK's Extra-Strength Stick to the thigh area 15 minutes before your routine. It can help warm up the muscles, making the exercise more comfortable.
• Explore Gentle Alternatives: As your strength builds, you can explore other low-impact activities. Understanding how a pedal assist ebike works can open up new possibilities for outdoor cycling, offering a gentle alternative to traditional biking.

3. Stationary Cycling and Recumbent Bike Riding

For many dealing with knee arthritis, high-impact cardiovascular exercises like running are simply not an option. Stationary cycling and its even gentler counterpart, the recumbent bike, provide an excellent low-impact alternative. These exercises allow the knee joint to move through a continuous, controlled range of motion, which helps lubricate the joint with synovial fluid while strengthening key supporting muscles like the quadriceps and hamstrings.

The controlled, circular motion avoids the jarring impact of foot strikes on pavement, making it one of the best exercises for knee arthritis to maintain or improve cardiovascular health without aggravating joint pain. The recumbent bike, in particular, offers a semi-reclined position that provides back support and further reduces the load on the knee joints, making it an especially safe and comfortable choice for those with significant pain or co-existing back issues.

Why It Works for Knee Arthritis

Stationary cycling builds muscle endurance in the legs without the stress of weight-bearing. This enhanced muscle strength provides better support and stability for the knee, effectively acting as a natural shock absorber. The repetitive, non-compressive motion also encourages blood flow to the surrounding tissues, which can help reduce stiffness and improve overall joint function. It's a foundational exercise used in physical therapy clinics across North America for knee rehabilitation.

Getting Started with Stationary Cycling

• Frequency and Duration: Begin with 3-4 sessions per week, aiming for 20-30 minutes each. Start with a low resistance setting to allow your joints to adapt.
• Proper Bike Setup: Adjust the seat height so that your knee has a slight bend of about 25-30 degrees at the bottom of the pedal stroke. Your leg should be almost fully extended but not locked.
• Warm-Up: Start each session with 5 minutes of cycling at a very slow pace with no resistance to warm up the muscles and joints before increasing the intensity.

Practical Tips for Success

• Maintain Cadence: Focus on a smooth, steady cadence (pedal speed) of around 80-100 RPM. It's better to increase resistance gradually rather than pedalling excessively fast, which can put more stress on the knee joint.
• Pre-Activity Preparation: To prepare the joint and muscles for movement, consider using a fast-acting topical analgesic like MEDISTIK's dual-action spray before you ride. Applying it to the knee and surrounding musculature can help warm up the area and manage initial stiffness.
• Post-Ride Care: If you experience any swelling or inflammation after your session, applying a cooling product can be beneficial. An ice roll-on or a cold pack for 10-15 minutes can help soothe the joint.
• Listen to Your Body: Cycling should feel challenging for your muscles but not painful for your joints. If you feel a sharp pain, reduce the resistance or stop. Pay attention to how your knees feel the next day and adjust your next session's intensity accordingly.

4. Gentle Knee Range of Motion Exercises (Heel Slides and Wall Squats)

When knee arthritis pain is significant, even simple movements can feel challenging. Gentle range of motion exercises like heel slides and wall squats are foundational for maintaining joint health without adding strain. These controlled, low-intensity movements are designed to take the knee through its available range, reducing stiffness and promoting the circulation of synovial fluid, which acts as the joint's natural lubricant.

These exercises are often the first step in physical therapy programs and post-operative protocols precisely because they are safe and effective. By focusing on movement without heavy loading, they gently reintroduce activity to a painful joint, preventing the cycle of stiffness and immobility from setting in. This makes them one of the best exercises for knee arthritis, particularly during flare-ups or in the early stages of an exercise program.

Why It Works for Knee Arthritis

The primary benefit of these exercises is their ability to preserve and improve mobility. Gentle, repetitive movements help to nourish the joint cartilage and maintain the flexibility of the surrounding muscles and ligaments. Unlike weight-bearing exercises, they isolate the joint's movement, allowing you to focus on form and control without the compressive forces that can aggravate arthritic pain. This targeted approach helps build a foundation of movement that is crucial before progressing to strengthening exercises.

Getting Started with Gentle Movements

• Frequency and Duration: Perform these exercises daily, or even 2-3 times per day, especially during times of increased stiffness like the morning. Aim for 10-15 repetitions of each exercise per leg.
• Execution Cues: For heel slides, lie on your back and slowly slide your heel toward your buttock, bending your knee only as far as is comfortable, then slowly return to the start. For wall squats, stand with your back against a wall and slowly slide down to a 30-45 degree angle, hold for 2-3 seconds, and slide back up.
• Warm-Up: These exercises are often used as a warm-up themselves. However, a warm compress or performing them after a warm shower can make the movements feel more fluid and comfortable.

Practical Tips for Success

• Smooth and Steady: The key is slow, controlled movement. Avoid jerky motions and never push your knee past the point of pain. The goal is gentle motion, not aggressive stretching.
• Symptom Management: To improve comfort and make the exercises more effective, apply a warming product like the MEDISTIK Dual-Action Stick about 10-15 minutes beforehand. If you experience any mild swelling after, an ice roll-on can help manage it. For those looking for more comprehensive options, you can explore the best pain relief for knee pain to find what works for your specific needs.
• Listen to Your Body: Pay close attention to how your knee feels. If you experience sharp or worsening pain, stop the exercise and consult with a healthcare professional.
• Surface Matters: When doing heel slides, perform them on a smooth surface. Wearing a sock can help your foot slide more easily on carpet or a mat.

5. Isometric Quadriceps Sets (VMO Focus)

For those with knee arthritis, even simple movements can feel challenging, making targeted, low-impact exercises essential. Isometric quadriceps sets are a foundational exercise prescribed by physiotherapists because they strengthen the key stabilizing muscles around the knee without requiring any joint movement, making them one of the safest and best exercises for knee arthritis. This exercise specifically targets the vastus medialis obliquus (VMO), the teardrop-shaped muscle on the inner thigh crucial for patellar (kneecap) stability.

Strengthening the VMO helps ensure the kneecap tracks correctly within its groove, reducing the grinding and abnormal wear on cartilage that worsens arthritis pain. This static contraction builds muscular endurance and re-establishes the mind-muscle connection, teaching the VMO to fire properly during daily activities like walking or climbing stairs. It’s a gentle yet powerful way to build the first line of defence for an arthritic knee.

Why It Works for Knee Arthritis

This exercise isolates the quadriceps muscles, particularly the VMO, without bending the knee, thereby avoiding any stress on the compromised joint surface. By improving VMO function, you directly counteract the muscular imbalances that often accompany knee osteoarthritis. This enhanced stability can significantly decrease pain, improve joint function, and build the foundational strength needed to progress to more dynamic exercises. Because it is performed lying down, it removes all body weight from the joint.

Getting Started with Quad Sets

• Frequency and Duration: Perform 3 sets of 15-20 repetitions, holding each contraction for 5-10 seconds. This can be done 2-3 times throughout the day, as it is very low-impact.
• Execution: Lie on your back on a firm surface with your legs straight. Place a small, rolled-up towel under the knee of the affected leg.
• Contraction: Tighten the thigh muscle (quadriceps) of that leg, pressing the back of your knee down into the towel. You should see your kneecap pull upward and feel a strong contraction in the muscle above your inner knee. Hold, then relax completely.

Practical Tips for Success

• Focus on the VMO: To ensure you're activating the correct muscle, place your fingers on the inner part of your thigh just above the kneecap. You should feel it firm up with each contraction.
• Warm-Up the Muscle: Before starting, consider applying a topical analgesic like MEDISTIK's dual-action stick to the quadriceps area. The initial cooling effect can ease any pre-existing muscle tightness, followed by deep heat to enhance blood flow and muscle activation.
• Breathe: Do not hold your breath during the contraction. Exhale as you tighten the muscle and inhale as you relax.
• Progression: As you get stronger, you can progress the exercise by increasing the hold time for each contraction to 15-20 seconds. Once this becomes easy, it’s a perfect lead-in to exercises like straight leg raises.

6. Lateral Band Walks (Side-Lying Hip Abduction)

Strengthening the muscles around the knee is important, but true stability often starts at the hips. Lateral band walks and side-lying hip abduction target the hip abductors, specifically the gluteus medius and minimus. These muscles are crucial for pelvic stability and preventing the knee from collapsing inward (valgus stress), a common movement pattern that can accelerate the wear and tear associated with knee arthritis.

By strengthening these key hip stabilizers, you improve your body's entire lower kinetic chain, reducing abnormal forces on the knee joint during activities like walking, climbing stairs, and standing up. This makes hip-focused strengthening one of the most effective and often overlooked strategies for managing knee pain.

Why It Works for Knee Arthritis

Weak hip abductors can cause the thigh bone to rotate inward and the knee to dive medially with each step. This misalignment places significant stress on the medial (inner) compartment of the knee, a common site for osteoarthritic changes. Strengthening these hip muscles acts like a natural brace for the knee, ensuring proper alignment and distributing forces more evenly across the joint. This is a foundational principle in physical therapy and sports medicine protocols for both preventing and managing knee conditions.

Getting Started with Hip Strengthening

• Frequency and Duration: Perform these exercises 3-4 times per week on non-consecutive days to allow for muscle recovery.
• Execution: For lateral band walks, place a resistance band around your ankles or just above your knees. Assume a slight squat position and take 15 controlled steps to the right, then 15 to the left. For side-lying leg lifts, lie on your side with legs stacked and the band around your ankles. Keeping your core engaged, lift your top leg towards the ceiling.
• Sets and Reps: Aim for 3 sets of 15 steps in each direction for walks, or 3 sets of 15 repetitions per leg for side-lying lifts.

Practical Tips for Success

• Proper Form: During walks, maintain a neutral spine and slight forward lean from the hips, ensuring your toes point straight ahead. The movement should be slow and controlled, originating from the hips, not by swaying your torso.
• Band Placement: Placing the band above the knees is a good starting modification if ankle placement feels too challenging or causes knee discomfort.
• Pain Management: To prepare the hip and lateral knee muscles for the workout, consider using the MEDISTIK Dual Action Spray. Its warming action can increase blood flow, while its analgesic properties offer targeted relief, helping you engage the muscles more effectively. For more information on managing arthritis discomfort, explore options for natural pain relief for arthritis.
• Progress Gradually: Start with a light resistance band. As the exercise becomes easier, progress to a stronger band (often indicated by colour) to continue challenging the muscles and building strength.

7. Hamstring Curls (Seated or Lying)

While strengthening the front of the thigh (quadriceps) is critical, achieving balanced knee stability requires equal attention to the muscles at the back: the hamstrings. Hamstring curls are a focused isolation exercise designed to strengthen these crucial knee flexors. By creating a strong, supportive "sling" behind the joint, healthy hamstrings act as powerful decelerators and stabilizers, working in partnership with the quadriceps to control movement and absorb shock.

This balanced strength is fundamental for managing knee arthritis. When the quadriceps are significantly stronger than the hamstrings, it can lead to abnormal joint mechanics and increased stress on the knee. Incorporating hamstring curls into your routine helps correct this imbalance, providing a more stable and resilient joint, which can significantly reduce pain during activities like walking, climbing stairs, and standing up from a chair.

Why It Works for Knee Arthritis

Hamstring curls are one of the best exercises for knee arthritis because they directly target the primary muscles that bend and stabilize the knee joint. This targeted strengthening improves neuromuscular control and reduces the shearing forces within the knee that can aggravate arthritic pain. Whether performed on a machine for controlled motion or with a resistance band at home, this exercise allows for progressive strengthening without high impact, making it safe and effective for sensitive joints.

Getting Started with Hamstring Curls

• Frequency and Duration: Aim for 2-3 sessions per week on non-consecutive days. Start with 2 sets of 12-15 repetitions, focusing on smooth, controlled movements.
• Execution (with a band): Lie on your stomach with your legs straight. Loop a resistance band around one ankle and secure the other end to a sturdy anchor point (like a table leg). Slowly bend your knee, pulling your heel toward your glutes against the band's resistance. Pause briefly at the top before slowly returning to the start.
• Warm-Up: Prepare the muscles with 5-10 minutes of light cardio like stationary cycling. Gentle dynamic stretches, such as leg swings, will also help increase blood flow to the area.

Practical Tips for Success

• Focus on Form: Avoid arching your lower back as you curl your leg. Keep your hips pressed firmly into the floor or bench throughout the movement to isolate the hamstring.
• Squeeze and Hold: At the peak of the curl, consciously squeeze your hamstring muscle and hold the contraction for 2-3 seconds to maximize muscle activation.
• Warm Up the Muscle: To enhance performance and comfort, consider applying a warming topical analgesic like MEDISTIK Dual Action Cream to your hamstrings about 10 minutes before you begin your sets. This can help increase blood flow and prepare the muscles for activity.
• Cool Down and Stretch: After your workout, perform a gentle hamstring stretch by sitting on the floor with one leg extended and reaching for your toes. Follow this with an application of MEDISTIK to help soothe the muscles and aid in recovery.

8. Modified Step-Ups and Step-Downs (Proprioceptive Training)

Many daily activities, from climbing stairs to getting out of a chair, rely on the strength and stability of your knees. Modified step-ups and step-downs are functional exercises that directly mimic these movements, building essential strength while also improving your body's awareness of its position in space, a sense known as proprioception. By using a low, stable platform, you can safely challenge your muscles and nervous system to work together more efficiently.

This exercise strengthens the key muscles that support the knee, including the quadriceps, hamstrings, and glutes. The controlled nature of the movement, particularly the slow and deliberate step-down (an eccentric contraction), teaches your muscles how to absorb force and stabilize the knee joint. This improved neuromuscular control is crucial for enhancing confidence in daily movements and reducing the risk of falls, making it one of the best exercises for knee arthritis management.

Why It Works for Knee Arthritis

Step-ups and step-downs directly translate to real-world function. Unlike isolated exercises, they train your muscles, joints, and nervous system to coordinate complex movements like navigating stairs or curbs. Enhancing proprioception helps your body make subtle, automatic adjustments to maintain balance and protect the knee joint from unexpected stresses, which can help prevent flare-ups and improve overall stability.

Getting Started with Modified Step-Ups

• Frequency and Duration: Aim for 3 sets of 10 repetitions on each leg. Perform this exercise 2-3 times per week on non-consecutive days to allow for muscle recovery.
• Finding a Platform: Start with a very low, sturdy step, such as the bottom step of a staircase or an aerobic step, typically 4-6 inches high. Ensure the surface is non-slip.
• Proper Form: For step-ups, plant your entire foot on the step and push through your heel to lift your body, bringing the other foot to meet it. For step-downs, lead with the same leg, focusing on a slow, controlled descent that takes 2-3 seconds.

Practical Tips for Success

• Prioritize Safety: Perform the exercise next to a wall or sturdy railing that you can hold onto for balance, especially when you are just starting out.
• Maintain Good Posture: Keep your chest up and your back straight. Avoid leaning forward or letting your knee collapse inward as you step up or down.
• Prepare Your Joints: To help prepare the joint and surrounding muscles, consider applying a warming topical analgesic like MEDISTIK's Dual Action Hot & Cold Stick about 15 minutes before your session.
• Progress Gradually: Once you can comfortably complete your sets with good form, you can progress by increasing the height of the step to 8-10 inches or by holding light weights. Always listen to your body and avoid pushing through sharp pain.

Knee Arthritis: 8-Exercise Comparison

Your Next Steps Toward Healthier Knees

You've just navigated a comprehensive toolkit, exploring some of the best exercises for knee arthritis recommended by clinicians. From the buoyant support of water aerobics to the focused strengthening of straight leg raises and the controlled motion of stationary cycling, each movement is a strategic step towards reclaiming comfort and function. The key takeaway is not to feel overwhelmed by the options but to feel empowered by them.

The journey to managing knee arthritis isn't about a single, magic-bullet exercise. Instead, it's about building a personalized, sustainable routine that respects your body's signals. The exercises detailed in this guide, including gentle heel slides, isometric quadriceps sets, and modified step-ups, are designed to work synergistically. They strengthen the crucial muscles that support the knee joint, improve flexibility, and enhance stability, all of which can lead to a significant reduction in pain and an improvement in your daily activities.

From Knowledge to Action: Building Your Routine

The most powerful information is that which is put into practice. Your immediate goal should be to transform this list into a living, breathing part of your weekly schedule. The path forward is paved with consistency, not intensity.

Here are your actionable next steps:

• Start Small, Win Big: Choose just two or three exercises from the list that feel most accessible to you. Perhaps it's the stationary bike and straight leg raises. Commit to performing these movements just three to four times per week on non-consecutive days.
• Listen Intently to Your Body: The "no pain, no gain" mantra does not apply here. Your guide should be the two-hour pain rule: if you experience increased pain for more than two hours after exercising, you've likely done too much. Next time, reduce your repetitions, duration, or resistance.
• Prioritise Proper Form: As we’ve emphasised, correct technique is paramount. Poor form not only negates the benefits but can actively worsen your condition. Consider filming yourself or exercising in front of a mirror to check your alignment against the cues provided.
• Embrace Gradual Progression: Once an exercise becomes easy and you can complete all recommended sets and reps without pain, it's time to progress. This could mean adding a light ankle weight, increasing your cycling resistance, or advancing to a more challenging modification. Slow and steady progress builds lasting strength.

The Power of a Two-Pronged Approach

Effectively managing knee arthritis involves a dual strategy: strengthening the joint from the inside and managing symptoms from the outside. This is where a targeted topical analgesic becomes an invaluable ally in your wellness arsenal. Integrating a high-quality topical pain reliever can make the difference between sticking with your routine and giving up due to discomfort.

Key Insight: Combining a consistent exercise regimen with strategic topical pain relief creates a powerful feedback loop. Less pain allows for more consistent exercise, which in turn leads to stronger muscles and even less pain over time.

Think of it as a pre-game and post-game ritual for your knees. Applying a warming product before your workout can help soothe stiff joints and prepare the muscles for activity, making those first few movements more comfortable. Afterward, a cooling application can help calm inflammation and provide targeted relief, speeding up recovery and reducing post-exercise soreness. This proactive approach to symptom management empowers you to stay on track with your strengthening goals, even on days when your knees feel less than cooperative. Remember, the ultimate goal is to build a resilient foundation for long-term joint health, and every consistent effort you make is a significant investment in your future mobility and quality of life.

Ready to enhance your exercise routine and manage discomfort effectively? The dual-action system from MEDISTIK provides the perfect support, with a warming pre-workout stick and a cooling post-workout roll-on designed for targeted relief. Explore the Canadian-made solutions trusted by professionals and find the right product to support your journey to healthier knees at MEDISTIK.