Why Swimming Is So Good for Your Bones and Joints

Why is swimming so often recommended for people with sore joints or a painful back? Dr. Amr Elyamany explains what happens to your body in the water.
Your weight nearly disappears
When you are in water, the weight your joints carry falls by as much as 90%. For someone who weighs 70 kg, that means only about 7 kg is felt on the joints. This greatly reduces the pressure on the vertebrae and joints and gives them a chance to rest from any load that was on them.
Cartilage feeds like a sponge
Cartilage is nourished in an unusual way: it works much like a sponge. When the pressure on it is reduced, as it is in water, it begins to absorb the fluids and nutrients around it. That nourishes it and helps to keep it healthy.
The result
- Irritation of the nerves decreases.
- The muscles become stronger.
- Bone and cartilage pain gradually eases.
Key takeaway: Swimming is a low-impact way to strengthen muscles and rest joints; ask your doctor which strokes suit your condition.
When to see a doctor
- Joint or back pain that limits everyday activities
- Pain that gets worse during or after swimming
- Recent surgery or injury before you start swimming
Need advice about your own case? Book a consultation with Dr. Amr Elyamany in Dubai.
This article is for general education and does not replace an in-person medical examination. If you have symptoms, please consult a qualified doctor.