I truly don’t know what SBT stands for.
However, whatever approach to training you use, you must ask yourself whether the approach your are using is effective to reach the goals of your client.
If SBT stands for short burst training and that is the clients goal and it achieves it’s purpose than it is effective. On the other hand if it doesn’t assist the client in reaching their fitness goals then it would not be effective.
Try to ask yourself, how does the the approach transfer into the everyday life of the client. For me, it would, I often have to race of the steps here in NYC to catch a train.
Hope this give you some direction.
Best to you!