Power bands do not need to rely on gravity for resistance. Hence, resistance can be provided both horizontally and vertically rather than only vertically. This makes it more suitable for sports mimicry where the load is not always uni-directional.
Can also be used in powerlifting to provide increased resistance, or support depending on placement of bands.
Disclaimer: As the material is made from latex, it is not suitable to be used on roads. You should not be stepping on the band and then stretching it on rough surfaces. It is more ideal for use on concrete floors or indoor courts.