Resistance band

A resistance band is an elastic band used for strength training. They are also commonly used in physical therapy, specifically by convalescents of muscular injuries, including cardiac rehab patients to allow slow rebuilding of strength.

Originating in the early 20th century, the bands were originally made from surgical tubing and the exercises conducted for muscle rehabilitation, and resistance band training is now used widely as part of general fitness and strength training. Their flexibility in use and light weight are a significant advantage for many users.

Typically the bands are colour coded to show different levels of resistance and users need to select an appropriate level. Code colours can vary between brands so pick an appropriate level if purchasing your own band, and do not rely just on colour.

Also available are loop bands as well as tubing without handles and bands set up with handles [ a common option for many purchasers]. Some types allow handles to be clipped on the band or loop.

Simple to use and their light weight allows people to easily carry them if travelling and continue with routine sessions for strength training.

While there are many different forms of exercises for the band/ loops, the resistance of the band as well as number of repetitions are the main variable options to lower or increase the intensity of the workout.

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Wikipedia