What is a resistance band?

Resistance bands are lightweight elastic bands used to cause muscle contraction. When the user pulls toward the resistance band, this contraction exercise increases muscle strength.
Resistance bands appeared at the beginning of the 20th century, and initially they were mainly used for rehabilitation. Those with damaged muscles use resistance bands to regain their lost strength.
Nowadays, resistance band exercise has not only become a strength training to build muscles, but also a kind of aerobic training that can quickly self-cultivation, strengthen cardiorespiratory function and improve posture.