This also goes under the topics of restrictive blood flow training and Kaatsu (in Japan). In fact they make and sell Kaatsu suits in Japan which allow adjusting the pressure at different places on arms/shoulders/legs etc. Also you can get some Velcro tourniquets in different sizes (either online or at a pharmacy) which can be adjusted to create tension. Apparently, having the right amount of tension is very important to get results without causing injury.
I think this can some definite benefits if you are injured as you get a significant pump and lots of blood to the injured area while using only very light weights.
I think this can some definite benefits if you are injured as you get a significant pump and lots of blood to the injured area while using only very light weights.