Failed Workouts and Overall Effects in Training Plan

Is there an reasonable expectation that in the course of a training plan, there will be a few workouts that don’t make it to the 100% completion standard? What are the substantial physiological deficiencies, if any, that come out of the occasional incomplete workout? I am just generally curious, how this is factored into building the plans.

One missed workout here and there won’t affect the overall physiological changes after a training plan by too much. It’s not quite so cut and dry as if you fail your last two intervals you won’t be able to complete future workouts either. Of course, the training plans work best if you complete them as prescribed and finish 100% of each workout, but we don’t expect you to be a machine that way. There’s a reasonable amount of wiggle room you can make use of while still achieving the desired results. I hope this helps!