We know that if we practice something often enough that perfection is inevitable. We know this because science has tested this hypothesis an infinite amount of times throughout the ages. Frequent repetition increases our familiarity, familiarity increases efficiencies, efficiencies reinforce familiarity, and so on.
Since we can predict certain outcomes and these outcomes are measurable, we can reasonably approach any activity or exercise (physical or otherwise) to guarantee the best outcome. Reasonable in a way that maximizes our abilities thereby maximizing our outcomes.
Practice is simply recreating a pattern over-and-over, again. It trains the nervous system to become exceedingly familiar with the movement-related aspects of physical performance. And, it trains the brain to become exceedingly familiar with reasoning & learning-related tasks. It simply doesn’t matter what the activity is, it is simply just a matter of your level of acquaintance. Repeat something often enough, and eventually you’ll elicit “muscle memory” (I really don’t like using that term).
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Potential > Memory
I don’t like using that term because a muscle cannot remember anything, period. This “memory” - or familiar movement pattern – occurs when the repetition induces certain efficiencies to develop which allow for the brain to do something else while the body is executing a certain string of commands that have already been programmed and tested. We perfect an activity by practicing it so much that when the initiative spark fires in the brain it sets off a harmonious cascade of precise and predictable nerve impulses. These impulses fire sequences of muscle contractions to cause precise movements. It would be far more accurate to call this phenomenon "muscle-potential", though the latter iteration doesn’t quite sound so appealing.
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Efficiency Over All
Regarding movement, the human body wants to do one thing, and one thing only. It wants to preserve its valuable resources. Economy – same activity, less energy. Same result, fewer resources. Conservation is the only motivation – do something often enough and it will take less time, less thought, and eventually less work.
Your body's primary motivation when performing any task boils down to just one thing – economy - Same activity, less energy. Same outcome, fewer resources. Conservation is key. Get more familiar with doing something and it'll take less time, less thought, and less work.
We've all experienced this in some form or another: whether with a Yo-yo, Rubix Cube, walking to jogging to running (did you know that you burn about the same number of calories WALKING one mile as you do RUNNING one mile? It’s true).
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We occupy this highly specialized, highly adaptive machine whose primary objective is preservation - resource-preservation. To put simply, its objective is to use the minimum resources needed to complete a task, and not a single iota more. This is true from both a metabolic standpoint as well as a mechanical one.
For many people, they’ve been trying to lose weight for what seems like an eternity but because this machine opts for efficiency – the harder you work, the better you get at working hard – AND the fewer resources you’ll use to accomplish the same task. Unless of course, you force the machine to continually adapt. How do you do this? Well, you're going to have to work harder than you did yesterday, every single day.
One Layer Deeper
This neural reprogramming is the first (and least demanding) attempt to make whatever action that you're practicing economical enough to preserve your body's precious and hard-earned resources.
Generally speaking, it's only after the neural improvements begin to maximize that the body begins to explore other avenues to improve the efficiencies of exercise.