Low impact
Swimming offers something no other aerobic exercise does the ability to work your body without high impact to your bones and muscles.
When the human body is submerged in water, it automatically becomes lighter. If
you are immersed just to the waist your body bears only 50% of your weight.
Sink to your neck and let the water bear up to 90% of your body weight. This
also means that the pool provides an ideal place to work stiff muscles and sore
joints
Ever see an overweight dolphin? We didn't think so. That's because swimming is a great way to increase muscular strength and muscle tone, especially compared to several other aerobic exercises. Take running, for example. When a jogger takes few laps around the track, that jogger is only moving his or her body through air. A swimmer, on the other hand, is propelling through water, a substance about twelve times as dense as air. That means that every kick and every arm stroke becomes a resistance exercise and it's well known that resistance exercises build muscle tone and strength.
Unlike exercise machines in a gym that tend to isolate one
body part at a time (like a bicep curl machine, for example) swimming puts the
body through a broad range of motion that helps joints and ligaments stay loose
and flexible. The arms move in wide arcs, the hips are engaged as the legs
scissor through the water, and the head and spine twist from side to side.
Plus, with every stroke, as you reach forward, you're lengthening the body,
which not only makes it more efficient in the water; it also helps give you a
good stretch from head to toe.
Thats all from me. Thank you.