Which Exercise is Best for Knee Pain? Expert-Backed Solutions

If you’re dealing with knee pain from osteoarthritis or general wear and tear, you’re not alone. According to recent research analyzing over 15,000 participants, the right exercise program can significantly reduce knee pain and improve function—but choosing the wrong exercises could make symptoms worse [1].

The good news? Scientific evidence now clearly identifies which exercises provide the best relief for knee pain and which ones you should avoid. This comprehensive guide breaks down the latest research to help you make informed decisions about managing your knee health.

What Type of Exercise Works Best for Knee Pain?

A groundbreaking 2025 study published in BMJ analyzed 217 randomized controlled trials and found that aerobic exercise offers the best pain relief and mobility improvements for knee osteoarthritis [1]. Specifically, lower-impact aerobic activities like walking, cycling, and swimming emerged as optimal choices for knee pain sufferers.

According to the research team, aerobic exercise should be used “as a first line intervention for knee osteoarthritis management, particularly when the aim is to improve functional capacity and reduce pain” [2].

Why Aerobic Exercise Works

Aerobic exercise strengthens the muscles around your knee joint and increases range of motion, helping to ease pain and improve function [1]. These activities provide cardiovascular benefits while minimizing stress on already-painful joints.

The 3 Best Low-Impact Exercises for Knee Pain

1. Walking

Walking is accessible, free, and highly effective for knee pain relief. This low-impact activity strengthens leg muscles, improves posture, and enhances flexibility without placing excessive stress on your joints [3].

Getting started:

• Begin with 5-10 minutes on flat terrain
• Gradually increase duration as tolerated
• Wear supportive, cushioned footwear
• Walk on softer surfaces like tracks or grass when possible

2. Cycling (Stationary or Outdoor)

Cycling provides excellent cardiovascular benefits while supporting your body weight, making it ideal for people with knee osteoarthritis. The circular pedaling motion promotes joint mobility without impact stress [3].

Best practices:

• Adjust seat height so your knee has slight bend at full extension
• Start with low resistance settings
• Aim for 20-30 minutes, 3-4 times per week
• Use a recumbent bike if balance is a concern

3. Swimming and Water Aerobics

Water exercise takes weight off painful joints while providing resistance for muscle strengthening. The buoyancy of water allows you to move through a fuller range of motion with less discomfort [3].

Pool exercises to try:

• Water walking (forward and backward)
• Leg lifts and kicks
• Gentle water aerobics classes
• Swimming laps with proper form

Essential Strengthening Exercises for Knee Support

While aerobic exercise tops the list for pain relief, strengthening exercises play a crucial role in knee stability. According to the American Academy of Orthopaedic Surgeons (AAOS), a comprehensive knee conditioning program should be performed for 4-6 weeks, then continued 2-3 days per week for maintenance [4].

6 Key Strengthening Moves

The Arthritis Foundation recommends these evidence-based exercises to strengthen muscles supporting your knee [5]:

1. Mini Squats Stand holding a chair back with feet shoulder-width apart. Slowly bend your knees to lower your body a few inches, keeping feet flat. Avoid letting knees extend past your toes. Hold briefly, then straighten.

2. Quad Stretch From a standing position at a chair, step one foot backward with knees bent. Tuck your buttocks under your hips until you feel a stretch in the thigh and hip of the back leg [5].

3. Standing Back Leg Slide While holding a chair for balance, slide one foot backward on the floor until your buttocks tighten, then return to starting position.

4. Straight Leg Raises Sit in a sturdy chair. Keep one foot planted firmly while straightening the other leg forward. Hold for 6 seconds, then relax [5].

5. Knee Flexion (Hamstring Curl) From the same seated position, bend one leg back under the chair and hold briefly before relaxing.

6. Hamstring Stretch Seated at the chair’s edge, straighten one leg forward with heel on the ground and toes pointed up. Gently lean forward from the hips to feel a stretch [5].

Exercise Guidelines and Frequency

Research shows that regularly doing strength and mobility exercises can relieve pain and improve joint function after only a few weeks. Experts recommend exercises 2-3 times per week for about 45 minutes [3].

General recommendations [6]:

• Sets: 1-3 sets of each exercise
• Repetitions: 10-15 reps per set
• Frequency: 1-2 times daily, up to 4 days per week
• Warm-up: 5-10 minutes of light activity before exercising

Important Safety Tips

According to AAOS guidelines, you should not feel pain during an exercise [4]. If you experience discomfort, stop and consult with your doctor or physical therapist. Always warm up with 5-10 minutes of low-impact activity like walking or stationary cycling before stretching or strengthening exercises [6].

Exercises to Avoid With Knee Pain

Not all exercises are created equal when you have knee arthritis. High-impact activities and certain movements can worsen symptoms and accelerate joint damage [7].

High-Risk Exercises That May Worsen Knee Pain

1. Deep Squats Deep knee bending to a 90-degree angle, especially with added weight, places excessive stress on arthritic knees [8].

2. Deep Lunges Lunges can aggravate osteoarthritis if not done carefully, and individuals may have difficulty maintaining proper form [8].

3. Jumping Exercises Activities like jump squats, box jumps, or burpees create an impact equal to 7-10 times your body weight, causing extreme pressure on knee joints [7].

4. Leg Extension Machines Leg extensions with added weights may strain the knee joint excessively, leading to increased stress and pain over time [9].

5. High-Impact Sports Activities requiring sudden starts, stops, pivots, or jumps should be avoided, including basketball, tennis, soccer, and downhill skiing [8].

Safer Alternatives

Instead of high-impact activities, focus on exercises that relieve pressure and friction on the knee, including stationary biking, elliptical machines, yoga, swimming, and walking on flat terrain [7].

How Long Before You See Results?

According to research, the beneficial effects of knee exercises can be observed 3-6 months after starting an exercise regimen and may be maintained for 1-3 years [10]. However, many people experience some pain relief within just a few weeks of consistent exercise [3].

Timeline for improvement:

• 4 weeks: Mind-body exercises improve function
• 12 weeks: Strengthening programs enhance mobility
• 3-6 months: Maximum benefits in pain reduction and strength
• Long-term: Flexibility exercises provide sustained pain relief [1]

When Exercise Alone Isn’t Enough

While exercise is a cornerstone of knee osteoarthritis management, some people need additional treatment when physical therapy and medications don’t provide adequate relief. If you’ve spent at least three months trying conservative treatments without sufficient improvement, it may be time to explore other options [11].

Signs You May Need Additional Treatment

• Persistent pain despite 3+ months of exercise and medication
• Difficulty performing daily activities
• Pain that interferes with sleep
• Limited range of motion affecting quality of life
• Mild to moderate osteoarthritis on imaging studies

Viscosupplementation: A Non-Surgical Option

For patients with mild to moderate knee osteoarthritis who haven’t found adequate relief from exercise and medications, viscosupplementation (gel injections with hyaluronic acid) offers a proven treatment option. Studies show successful outcomes for 60% of knee osteoarthritis patients [12].

At Joint Relief Institute, we specialize in fluoroscopy-guided viscosupplementation injections. This precision imaging technique ensures accurate placement of the hyaluronic acid gel directly into the joint space, maximizing effectiveness.

Key benefits:

• Non-surgical pain relief
• Improved joint lubrication and cushioning
• Results typically last 6+ months
• May delay or prevent need for surgery
• Covered by Medicare and most insurance plans

With over 40,000 patients treated and 400,000+ procedures performed, Joint Relief Institute has earned a 4.9 Google rating for helping people find relief from knee pain without surgery.

Creating Your Knee Exercise Plan

Based on current evidence, here’s a comprehensive approach to managing knee pain through exercise:

Week 1-4: Building Your Foundation

• Start with 10-15 minutes of low-impact aerobic exercise (walking, cycling, or swimming) daily
• Perform 2-3 basic strengthening exercises from the list above
• Focus on proper form over intensity
• Warm up and cool down properly

Week 5-8: Increasing Intensity

• Extend aerobic sessions to 20-30 minutes
• Add resistance or light weights to strengthening exercises
• Exercise 4-5 days per week
• Incorporate flexibility and stretching

Week 9-12: Maintenance Phase

• Continue 30-45 minute aerobic sessions
• Perform strengthening exercises 2-3 times per week
• Monitor pain levels and adjust as needed
• Consider joining a water aerobics or gentle yoga class

Frequently Asked Questions

What is the single best exercise for knee pain?

According to a comprehensive analysis of 217 studies, walking is the single best exercise for knee osteoarthritis pain relief. This low-impact aerobic activity strengthens leg muscles, improves joint function, and provides pain relief without requiring special equipment [1][3].

How often should I exercise with knee pain?

Research recommends exercising 2-3 times per week for about 45 minutes once you’ve built up your strength and endurance. Begin with shorter, daily sessions of 10-15 minutes and gradually increase as tolerated [3][4].

Can exercise make knee osteoarthritis worse?

When done properly, exercise does not worsen knee osteoarthritis. Research shows that none of the recommended exercise types resulted in more adverse events than control groups, indicating these therapies are generally safe [10]. However, high-impact activities and improper form can aggravate symptoms.

Should I exercise when my knee is swollen?

If you’re experiencing a flare-up with significant swelling, consult your healthcare provider before continuing your exercise routine. Gentle range-of-motion exercises may be appropriate, but high-intensity activities should be avoided during acute inflammation [7].

How long does it take for knee exercises to work?

Many people experience some improvement within a few weeks, but maximum benefits typically appear after 3-6 months of consistent exercise. The beneficial effects can be maintained for 1-3 years with ongoing activity [10].

What exercises should I absolutely avoid with knee arthritis?

Avoid deep squats, deep lunges, jumping exercises, leg extension machines with heavy weights, and high-impact sports like basketball or tennis. These activities place excessive stress on arthritic knee joints [7][8][9].

Take the Next Step Toward Knee Pain Relief

Exercise is a powerful, evidence-based tool for managing knee osteoarthritis pain. By focusing on low-impact aerobic activities like walking, cycling, and swimming, combined with targeted strengthening exercises, you can significantly improve your knee function and reduce pain.

However, if you’ve been exercising consistently for 3+ months and still experiencing limiting knee pain, it’s time to explore additional treatment options. Joint Relief Institute specializes in non-surgical solutions for knee pain, including precision fluoroscopy-guided viscosupplementation injections.

Ready to find relief? Call us at (800) 238-9307 to schedule a consultation with our experienced team. We accept Medicare and most insurance plans, making effective knee pain treatment accessible when you need it most.

Don’t let knee pain keep you from the activities you love. Whether through a structured exercise program, advanced injection therapy, or a combination of treatments, relief is possible.

Sources

1. Harvard Health Publishing. “Walking, cycling, and swimming are best exercises for knee osteoarthritis.” Harvard Medical School, October 2025. https://www.health.harvard.edu/diseases-and-conditions/walking-cycling-and-swimming-are-best-exercises-for-knee-osteoarthritis

2. BMJ Group. “Walking, cycling and swimming likely best exercise for knee osteoarthritis.” BMJ.com, October 2025. https://bmjgroup.com/walking-cycling-and-swimming-likely-best-exercise-for-knee-osteoarthritis/

3. WebMD. “Exercises for Knee Osteoarthritis and Joint Pain.” WebMD.com, 2025. https://www.webmd.com/osteoarthritis/ss/slideshow-knee-exercises

4. American Academy of Orthopaedic Surgeons. “Knee Conditioning Program.” OrthoInfo.org, 2025. https://orthoinfo.aaos.org/en/recovery/knee-conditioning-program/

5. Arthritis Foundation. “6 Exercises for Knee OA Pain.” Arthritis.org, 2025. https://www.arthritis.org/health-wellness/healthy-living/physical-activity/other-activities/6-exercises-for-knee-oa-pain

6. Choose PT (American Physical Therapy Association). “5 Exercises to Reduce Knee Pain.” ChoosePT.com, 2025. https://www.choosept.com/health-tips/Five-exercises-reduce-knee-pain

7. American Knee Pain Centers. “7 Exercises to Avoid If You Have Knee Pain.” AmericanKneePainCenters.com, 2025. https://americankneepaincenters.com/blog/7-exercises-to-avoid-if-you-have-knee-pain/

8. Healthline. “Knee Arthritis: Exercises to Avoid?” Healthline.com, 2025. https://www.healthline.com/health/knee-arthritis-exercises-to-avoid

9. NJ Spine & Orthopedic. “5 Activities to Avoid With Knee Osteoarthritis.” NJSpineAndOrtho.com, 2025. https://www.njspineandortho.com/5-activities-to-avoid-with-knee-osteoarthritis/

10. National Center for Biotechnology Information. “The role of muscle strengthening in exercise therapy for knee osteoarthritis: A systematic review and meta-regression analysis.” PubMed.gov, 2017. https://pubmed.ncbi.nlm.nih.gov/28438380/

11. Arthritis-Health. “When to Consider Therapeutic Injections for Knee Arthritis Pain.” Arthritis-Health.com, 2025. https://www.arthritis-health.com/treatment/injections/when-consider-therapeutic-injections-knee-arthritis-pain

12. Hospital for Special Surgery. “What to Know About Knee Gel Injections (Viscosupplementation).” HSS.edu, 2025. https://www.hss.edu/health-library/conditions-and-treatments/knee-gel-injections-viscosupplementation