It always amazes me that FITNESS is a multi billion dollar industry... Yet a great, best pre workout 2022 - https://www.kitsapdailynews.com/national-marketplace/best-pre-workout-su... universal and concise definition of fitness is tough to nail down.
Simply ask someone participating in a physical fitness plan, or even someone in the health market for that matter, to provide you with an obvious meaning of health.
You'll most probably be welcomed with the "deer seen in the headlights" stare accompanied by nonsensical stammering.
Should you get a solution, it will most probably be slanted toward the particular proficiency of an individual asked.
For example...
A marathon runner is going to define fitness in terms of cardiorespiratory and muscular endurance... A power-lifter is going to define fitness in conditions of absolute strength... A bodybuilder will define fitness in terms of muscle size as well as definition... etc.
But the overwhelming majority of people participating in a physical fitness program aren't professional athletes concerned with the improvement - http://Www.Nuwireinvestor.com/results.aspx?searchwords=improvement of only one physical ability.
So, basing your definition of fitness on one specific physical skill does not lead to a universal definition of fitness.