If your knees ache when you climb stairs, walk the dog or get up from a chair, you may wonder whether your weight has something to do with it. For many people it does. Here is how weight and knee pain are connected, and what you can do about it.
How extra weight affects your knees
Your knees carry your body weight with every step. Research suggests that each pound of body weight adds roughly four pounds of pressure on the knee when you walk. That means even a modest weight change can make a noticeable difference to the load on your joints over a day.
Excess weight can also promote inflammation in the body, which may add to joint pain and stiffness.
What studies show about weight loss and knee pain
Studies of people with knee osteoarthritis have found that losing weight can reduce pain and improve movement and physical function. You do not need to reach an “ideal” weight to benefit. Many people notice improvements with a loss of about 5 to 10 percent of their body weight.
More than just knee pain
- Easier daily movement. Stairs, walking and getting up from a seat can feel less of a struggle.
- More energy. Moving more becomes realistic, which supports a healthier routine.
- Better overall health. Weight loss can improve blood pressure, blood sugar and cholesterol. See our guide on high blood pressure.
- Better confidence and mood. Many people find they feel more able to do the things they enjoy.
Gentle ways to start moving
- Walking on flat, even ground, in short sessions that you build up over time
- Swimming or water walking, which take pressure off the joints
- Stationary cycling with the seat at a comfortable height
- Simple strengthening exercises for the thighs and hips, which support the knees
Check with your doctor before starting a new exercise routine, especially if you have ongoing pain.
When to see a doctor about knee pain
- The pain is severe, sudden or follows an injury
- Your knee is swollen, red, warm or locks or gives way
- You can’t put weight on your leg
- Pain has lasted for several weeks or keeps getting worse
Some knee problems need a specific diagnosis, so don’t assume weight is the only cause.
Medical weight loss support in Commack
If extra weight is limiting how you move, our medical weight loss program offers a full health evaluation, a personalized plan and regular follow-up. If you have struggled to lose weight, read 8 medical reasons diets don’t work.
Frequently asked questions
Will losing weight cure my knee pain?
Not always, but it often reduces pain and improves movement, especially when pain is linked to osteoarthritis. Your doctor can tell you what to expect.
How much weight do I need to lose to feel a difference?
Many people notice improvements with a loss of about 5 to 10 percent of their body weight, though results differ.
Is exercise safe if my knees hurt?
Low-impact activities are usually a good choice, but check with your doctor first.
Ready to take the pressure off your knees? Book an appointment online or call (631) 486-4834.
This article is for general education and is not a substitute for personal medical advice. Results vary from person to person.
