BEST Pedal Exerciser After Knee Replacement in 2021
A pedal exerciser is a perfect solution for anyone that has had total knee replacement surgery.
This exercise bike is great because it is lightweight, inexpensive, and versatile.
Below are videos and recommendations showing you how to use this mini-cycle for both upper and lower body exercises following knee surgery. I also show my top pick for 2021.
My top pick in 2021
The Sunny Health and Fitness Magnetic Under Desk Exercise Bike wins the position!
Why is the Sunny my top-pick?
I have been using and testing these small pedal exercisers for nearly 20 years in the clinic. I have had hundreds of real patients use various versions and the Sunny is easily the most stable and has the best build quality.
The biggest drawback to these small pedal exercisers is the narrow base of support. This is a problem for two reasons:
- First, it makes the device easily tip over side-to-side.
- It makes it difficult for anyone with larger legs or thighs to ride comfortably.
How to choose the best pedal exerciser after knee replacement surgery?
These little bikes come in a huge variety of prices and qualities.
Some considerations include:
- How long do you plan to use it?
- Will you be able to lift and move it?
- How much space do you have at home for it?
- Do you have a chair to use with it?
How long do you plan to use it?
If you do not enjoy cycling for exercises you might not plan on using this pedal exerciser longer than your recovery from knee replacement surgery.
In this case a less expensive pedal bike would be recommended.
On the otherhand, if you enjoy cycling and think it will be part of your longterm health program you may consider buying a recumbent bike.
Will you be able to lift it and move it?
Keeping your walkways clear of tripping hazards is an important part of total knee replacement home safety.
I would recommend a light weight pedal bike that is easy for YOU to lift and move. Some of these bikes weight less than 6-lbs.
Another benefit of using a light weight pedal bike is the ability to place it up on a countertop.
There is a limit to how much you can exercise your knee after surgery, but using the bike to exercise your arms while standing is a great supplemental exercise.
How much space do you have at home?
Space is always important. Buying one more thing that need floor space or closet space. This little bike dimensions are 20.9 in. (L) x 14.2 in. (W) x 9.4 in. (H).
Be sure to check the dimensions of the bike you choose.
3 Recommended Budget Pedal Exercisers
Top pick:
Best Budget Option:
Best Large Pedal Option:
Do you have a chair at home to use with this bike?
Having a stable chair is important. These pedal bikes can not be safely used with light weight chairs that may tip backward.
They also don’t work well with chairs on wheels.
The best kind of chair is a stable chair that allows you to sit on the front edge of the seat with the pedal bike placed on the floor in front of you.
How long should I ride this bike after a knee replacement?
During the first 10-days after surgery the primary focus of recovery is rest and gentle range of motion.
This bike could be used between 30-seconds and 5 minutes per episode and up to 3 episodes a day. Each episode of use should stop before you feel exhausted. It is common to get tired quickly during the fist 10-days following surgery.
Between days 11 and 30 the goal would be to complete a full revolution and increase your cycling time to 10-minutes per episode. Continue to take frequent rest breaks and stop before you feel exhausted. An effort level of 3/10 is a great goal. With 10/10 being complete exhaustion and 1/10 being the effort associated with sitting in a chair.
After week 4 the focus should be more on walking, stairs, and other weight bearing activities.
Why should someone use this bike as an arm exerciser after knee surgery?
After knee replacement surgery, most patients will be using a walker, crutches, or a cane. Keeping your shoulders, elbows, and wrists healthy is important.
This bike may function as an upper body ergometer and may really help keeping the rest of your body in shape.
Another benefit of using this bike for your arms is because it promote standing endurance and weight shift.
Normal walking requires time on your feet and the ability to shift your from one leg to the other.
The rhythmic movement of using this bike as an arm bicycle will help you return to normal walking.
Here is a video showing you how to position this pedal bike on a countertop.
I can’t fit my foot in the loop!
This is a common problem. The pedals are small and the straps are often too narrow for a normal adult foot.
The simple solution is flip the pedal upside down and place your foot on the bottom of the pedal without using the strap.

My top pick in 2021
The Sunny Health and Fitness Magnetic Under Desk Exercise Bike wins the position!

Anthony Maritato, PT
Physical Therapist / Author
Anthony Maritato, PT has been a licensed physical therapist and private practice owner since 2006. Ohio license #PT011602.
Anthony has been passionate about helping patients recover from total knee replacement surgery as well as rotator cuff repair surgery.
More Blog Posts …
Low cost minimalist shoes
Finding a low cost yet durable minimalist shoe can be challenging. Here is one that I have tested.
Best Minimalist Shoe In 2018 On Amazon – By A Physical Therapist
Minimalist shoes allow your foot to act like a foot. The ability for your toes to move, your arch to flex, and your whole lower kinetic chain to function is one of the main reasons to consider transitioning to a minimalist shoe.
Best Position To Sleep After A Total Knee Replacement
The best position to sleep in after a total knee replacement is flat on your back with a pillow under your heel.
This is because this position allows the knee to remain in full extension throughout the night.
If you are not experiencing difficulty achieving full knee extension you may prefer to sleep in other positions.
How To Use A Stationary Bike After A Total Knee Replacement
The upright stationary bike is a very common tool used in the rehabilitation of your total knee replacement. In many cases the upright stationary bike is preferred because it reduces the knee flexion requirements. In this video I show you some tips for using a stationary bike at home and turning a standard upright bike into a recumbent bike.
How to prepare for knee replacement surgery?
There is a lot you can do before your total knee replacement surgery to prepare. Step 1: Improve your cardiovascular fitness – your body will be dedicating much of its time and energy to repairing tissue. The better your heart and lungs are working the better your body can recovery. Step 2: Strengthen the rest of your body. While you are waiting on your knee surgery, you can strengthen the other 87% of your body. Step 3: Get your game face on. There will be plenty of mental and emotional challenges along the path to recovery. The better you prepare yourself to face these challenges the better you will be to overcome them.
Easiest Way To Increase Knee Bend At Home After A Total Knee Replacement Sitting – Real Patient
There are an infinite number of ways to bend your knee and all too often I see clients who have been told heel slides need to be completed while laying on your back. That simply isn’t the case. In this video I show you how to perform heel slides seated in a chair and using a strap to assist.
3 EASY Ways to Measure Knee Flexion at Home
Learn 3 easy ways to measure knee flexion at home.