How Do You Determine if You Want to Hold or to Add Weight?

If we were able to have a device in our tendons that tell us how many newtons or how much load they are sustaining at each moment, ideally what I would want is that at the end of this session, you have had as much load as possible. If we can do that by doing two repetitions of a very heavy exercise, I've saved some time and probably the stimulus is more powerful. Think about any strength exercise. A lot of studies are saying that exercises for strength don't need to be very heavy to be effective. You can still get some decent effects with 30% loads and with 50% loads. You just need more repetitions and a proper stimulus. With tend