First let me say- I do not like things that are impractical or expensive to do, after all, I have livestock to feed. Many fit-minded people seem set on the notion there must be money, memberships and plenty of time exerted to make fitness happen. I disagree. That lifestyle works for many, but it isn't for everyone.
By definition, fitness is the quality or state of being fit. Being fit is to be in a state of health and well-being. Please note: no where does skinny or thin play into the definitions! So what does it mean?
Being a fit homesteader, according to my philosophy and practice, means having the health and well being to fulfill the goals and tasks set about by my lifestyle. Can I handle the feed sacks and hay bales my livestock require? Do I have the energy and range of motion to clean stalls, trim hooves, and aide a sick animal? Is there stamina for the long days my lifestyle demands? These are the questions I ask myself when I consider fitness for my homesteading life. The level of fitness needed may be determined by the level of homesteader a person has chosen to be.
Let's consider my fit-ness day:
* strength- hauling feed, water, shavings, etc. this entails flexibility, range of motion, and strength- some parts of my chore routine are heavier than others
* walking- from gate to gate, pasture and stalls, there is plenty of ground to cover at a moderate or brisk pace
* running- ever herded goats or chickens?
* endurance- the days are long so my energy level needs to be fairly high
As you can see, most of my 'fit routine' come from daily activity required by my lifestyle; not to say some supplementation hurts. I often hike or walk trails, tracks, and wooded areas. Sometimes I use kettle bells to add to my strength routine. Yoga and stretching are regular for me as I desire to relieve soreness, maintain flexibility, and distress after a long day.
In the end, does it matter? I firmly believe being fit, no matter what our work, is vital. Parents and grandparents need a level of fit-ness to meet the demands of their family life (and work life). Singles, office personnel, clerks- we all need a level of fit-ness to maintain health and stamina.
Start where you are and go from there. Determine your fit-ness goals by how you feel and what your lifestyle demands.