For fans of yoga, pilates - and its new incarnation, "yogalates" - foam rollers are probably the second best exercise equipment for them to take to class (the first is the exercise mat, of course). These versatile foams can be used for stretching, flexibility, back stabilization, balance training and other exercises. Foam rollers are also used by physical therapists during patient rehabilitation, and even in relaxation - specifically to rest and soothe tired muscles and body aches. They come in standard lengths of 12 to 36 inches and widths of two to six inches.

Two versions of foam rollers

The half round type is shaped like a tube roller that's cut lengthwise along their profile, so that the other side is round and while the other one is flat. They are recommended for beginners of balance training exercises. The full round type, on the other hand, is cylindrical with a round cross section and an even diameter all throughout. They are much more difficult to balance and are primarily used by intermediate and expert users with the help of a fitness trainer.

How to buy foam rollers

Choose a foam roller with a consistent texture and thickness all around. Check for some perforations or large gaps in the foam. Smaller gaps are fine but large holes can make the roller less effective, less firm and lumpy. Also select rollers with a smooth exterior.

Also make sure your roller is firm and flexible that it will return to its original shape even when bent or compressed. It should provide the right amount of firmness to be effective. As a basic rules, first time users of rollers should stick to softer rolls then move on to denser and harder ones as they improve their fitness levels.

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