A resistance band to help strengthen and rehabilitate muscles, without the need for free weights. 
 
The resistance increases proportional to amount the band is stretched (percent elongation). (25-300%). Clinical trials show elastic resistance has been shown to increase strength. This increase ranges from 10-130%, and occurs in a variety of populations, from athletes to older adults. In addition, elastic resistance training has been reported to increase gait and mobility, balance, function, and reduced pain.