The following list (from CrossFit.com) defines fitness for everyone - the elite athlete, the tactical operator, and the mother of three kids. All of these attributes are not only requisite for athletes but for everyone - regardless of their "sport of choice". Throughout the course of the day/week/life we will touch upon each, our upon several attributes, and our quality of life will be defined by how well we can meet (or exceed) those requirements.
The Ten Foundations of Fitness
Cardiovascular/Respiratory Endurance - The ability of the body systems to gather, process and deliver oxygen.
Stamina - The ability of the body systems to process, deliver, store and utilize energy.
Strength - The ability of a muscular unit, or a combination of muscular units, to apply force.
Flexibility - The ability to maximize the range of motion at a given joint.
Power - The ability of a muscular unit, or combination of muscular units, to apply maximum force in minimum time.
Speed - The ability to minimize the time cycle of a repeated movement.
Coordination - The ability to combine several distinct movement patterns into a singular distinct movement.
Agility - The ability to minimize transition time from one movement pattern to another
Balance - The ability to control the placement of the bodies center of gravity in relation to its support base.
Accuracy - The ability to control movement in a given direction or at a given intensity
The beauty of this list is that it touches upon all the characteristics that an athlete, tactical operator, mother, father, etc., needs if they are going to thrive in the world. (By extension, they also define what we should see in our children when they are at play - let's leave that subject for another day though.)
Some of these attributes may be God-given while others are only earned by sweat, blood and determination. Is there an epoch that any one person can reach in all the attributes or is it a never ending pursuit? The decision is yours. The only definite is that by pursuing these attributes individually and collectively you will not only improve yourself as an athlete, but as a human being as well.
3-2-1-Go!