Low-Impact Exercise for Knee Pain: Best Options for Arthritis

Written by Dan Vassilaros, Ph.D. | Dec 12, 2025 6:18:34 PM

For people with knee arthritis, consistent cycling can help as long as your bike fits your current range of motion.

The Best Low-Impact Bike for Knee Pain

If every step reminds you that your knee hurts, you’re not alone. Arthritis, past injuries, or joint surgery can make even gentle activity feel risky. Yet movement is medicine — it feeds cartilage, builds muscle, and reduces stiffness.

 The key is how you move. Cycling is generally one of the safest, most effective ways to keep joints healthy — when the bike fits your current range of motion. That’s where most people struggle, and where the OrthoBike Hero™ makes all the difference.

Understanding Knee Arthritis and Exercise Needs

How Arthritis Affects Motion

Osteoarthritis slowly wears away joint cartilage, while rheumatoid arthritis causes inflammation that limits bending and extension. Both conditions lead to stiffness and pain that worsen when the joint is idle.

Research consistently shows that cycling as a low-impact therapy improves joint nutrition, muscle strength, and functional mobility in people with osteoarthritis and rheumatoid arthritis.

Gentle, consistent motion restores lubrication through synovial fluid, improves circulation, and helps reduce swelling. The goal is steady low impact exercise within the joint’s pain-free range of motion. 

Why Traditional Bikes Fall Short

A conventional recumbent stationary bike demands a minimum of about 100-105 degrees of knee flexion for a full pedal rotation without much pain. Many people with arthritis can’t bend that far and have learned it hurts to pedal their bike.

The result: they stop moving — and nothing gets better. A truly arthritis-friendly bike must let users pedal in their pain-free range of motion and then progress as they are capable, over time.

Features to Look for in an Arthritis-Friendly Bike

  • Adjustable pedal length and seat position. These allow you to match the bike to your current flexibility instead of forcing your knee to match the bike.

  • Low resistance. Prevents strain on muscles around joints in the beginning.

  • Supportive backrest and upright posture. Reduces pressure across the knees and hips.

  • Quiet, fluid pedaling motion. Smooth is sweet lotion on the inflamed joints!

Conventional exercise bikes labeled “low-impact” can meet only the last three points and may not do so well on the last one. The OrthoBike Hero™ adds the missing dimension — combined variable crank length and seat position — so you can begin cycling comfortably whatever your knee flexion is, even below 60°, and treat your joints to many revolutions of consistent motion over time. 

If greater knee bend is one of your goals, you can incrementally advance your flexion in 3- to 5-degree steps. Check out our post OrthoBike vs. Fitness Bikes: A Better Way to Rehab After Knee Replacement to see how Orthobike can progress your knee range of motion without pain. 

The Bottom Line

 The OrthoBike Hero™ is the only low-impact bike that adapts to your range of motion, not the other way around — helping you rebuild strength, confidence, and mobility safely at home.

OrthoBike Hero™ gives you an alternative so you can get consistent beneficial exercise regardless of your range of motion, without pain

Ready to Ride?

Learn more about OrthoBike HERO and how it can speed your recovery →