There are differing interpretations and many different ways to apply the rest pause technique. Either way, it does appear to be worth considering.
Unstable surface training is an exercise that involves unstable surfaces such as; a balance disc, wobble board, Swiss ball, and slings or rings.
Specificity is an important principle to consider when deciding how to train to improve your balance, stability, and core strength.
There are other methods that come with predictably higher risk of injury and therefore haven’t been included here.
There are many different set training systems; circuits, supersetting, trisets, drop sets, pyramids, etc. However, some are better than others.