These colorful bands are a cheap and convenient way to target many different muscle groups throughout the body.

In addition, research has found them to be as effective as free-weight workouts in building strength.

These bands can provide an oppositional force to train muscles as you work out.

Woman exercising at home with resistance bands

Luis Alvarez / Getty Images

The manufacturer usually uses these to designate the relative resistance of the band.

Each manufacturer has its own unique color scheme.

It is best to consult the guide that comes with your bands before you begin your workout.

Alternatively, some workout bands come with prefabricated plastic handles installed on each end.

Material

Several different materials are used to make resistance bands.

Some versions are produced with latex, a natural substance found in the bark of rubber trees.

These bands can be used to target a wide variety of body parts.

To start, try doing three sets of ten repetitions of each exercise.

Those who are new to strength training may want to use a lower-resistance band at first.

Saint Luke’s.Hamstring curl (strength).

American Heart Association.Recommendationsfor physical activity in adults and kids.