The skillful trainer doesn’t work the trainee too hard at first because this tends to provoke psychological resistance to the training, but at the same time, the training cannot be so easy that it has no meaningful impact. The trainer must understand the minimum effective dose of exercise and train at an intensity that is slightly higher but not too much higher than the minimum effective dose. This makes training both easy and effective at the beginning; the trainee eases into the exercise and gradually ramps up.
