Scientists Reveal the Best Exercises for Aging Joints

As people get older, the cartilage and fluids that support joints naturally decrease. This might make some worry that exercise could cause more wear and tear. However, research suggests the opposite is true. Certain movements can actually help keep joints healthy, reduce discomfort, and maintain mobility.

How Exercise Protects Your Joints

Aging changes how joints work. But avoiding activity might not be the best solution. Our joints weaken over time because the amount of cartilage and fluid in them decreases. This can lead some people to avoid exercise. Yet, with the right approach, exercise can actually protect your joints.

Each joint has articular cartilage, a special tissue that covers bone ends. This cartilage protects joints and makes movement smooth. A thick liquid called synovial fluid also lubricates joints like knees, hips, and shoulders. It reduces friction and provides nutrients to the cartilage.

However, cartilage doesn't repair itself well, partly because it lacks its own blood supply. When cartilage breaks down gradually, it leads to osteoarthritis. This condition affects over 500 million people worldwide, often causing pain in weight-bearing joints like knees, hips, and the spine.

Exercise helps distribute synovial fluid and its nutrients to the cartilage. Strong muscles around your joints act like shock absorbers. Strengthening these muscles, even through weightlifting, reduces pressure on your joints. Research shows that exercises targeting the quadriceps (thigh muscles) are especially good at reducing joint pain.

A major Cochrane review looked at how exercise affects osteoarthritis. It found that exercise reduces pain and improves function in people with knee osteoarthritis. It also noted that exercise has similar benefits to anti-inflammatory drugs, but without the side effects.

The Benefits of Balance Training

Exercise can also help maintain proprioception. This is your body's ability to sense its position and movement. Proprioception declines with age, meaning your brain is less able to register these signals. This can cause your joints to bear weight unevenly, leading to faster wear and tear.

Exercising on varied or unstable surfaces can slow this process. It makes your ankle, knee, and hip joints adjust quickly, keeping them engaged and flexible.

Low-impact exercises keep at least one foot on the ground or support the body in other ways. This reduces the weight and force on joints. Examples include swimming and water aerobics, where water supports up to 90% of your body weight. Cycling can also be good for your joints, especially your knees.

Best Low-Impact Exercises for Healthy Aging

Tai chi is a gentle exercise with slow movements and breathing. Research suggests it can be as effective as physical therapy for knee osteoarthritis. Yoga also strengthens muscles around joints and improves flexibility.

Walking is particularly beneficial. Walking on uneven ground like grass, gravel, or trails helps maintain proprioception. One study found that unstable surface training greatly improves balance in older adults. Another review showed that balance-challenging exercises reduced falls by about 23%. This is important because falls are the leading cause of injury-related death in adults over 65.

How to Start Low-Impact Exercise Safely

If you're new to low-impact exercise, here are three tips:

Start Small

You don't need special equipment. Try walking on uneven surfaces like grass or sand instead of pavement. Even ten minutes walking across a park lawn can improve joint movement. You can also practice standing on one leg, like while brushing your teeth. Start on firm ground, aiming for 30 seconds on each leg. Then, you can try standing on a folded towel or foam pad. Make sure to master each step before moving on.

Use Support

Safety is key. Always do low-impact exercises near something you can hold onto, like a park bench or bathroom counter. If you're walking, poles are a great option. Never exercise on unstable surfaces when you're tired.

Get Advice

No exercise is completely risk-free. For example, holding a yoga pose beyond your range of motion could injure your back, shoulders, or knees. Doing deep squats or lunges with poor form can strain your knee joint. Before starting, talk to a certified exercise physiologist or physiotherapist. They can help create a safe, personalized exercise program.

Our joints will experience wear and tear as we age, but low-impact exercise can help. It's a worthwhile effort, no matter your age.

Deep Dive & References

• Articular Cartilage Restoration
• Synovial Fluid
• Cartilage Blood Supply
• Global Burden of Osteoarthritis - The Lancet, 2023
• Quadriceps Strengthening for Knee Pain - Cochrane Database of Systematic Reviews, 2002
• Exercise for Osteoarthritis - British Journal of Sports Medicine, 2016
• Proprioception
• Cycling and Knee Health - Medicine & Science in Sports & Exercise, 2024
• Health Benefits of Tai Chi
• Tai Chi vs. Physical Therapy for Knee Osteoarthritis - Annals of Internal Medicine, 2016
• Walking on Uneven Terrain - Gerontology, 2013
• Unstable Surface Training for Postural Control - Scientific Reports, 2026
• Balance Exercises Reduce Falls - Cochrane Database of Systematic Reviews, 2017
• Falls: Leading Cause of Injury-Related Death - World Health Organization
• Uneven Surface Walking Improves Joint Movement - Journal of Strength and Conditioning Research, 2010
• Find an Exercise Physiologist