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If one's bone structure is outside the norm or one has a better than average muscular build, the BMI is not a good metric for healthy weight. For this case, it's better to use several body girth measurements. Some calculators use skinfold, but I think girth is much easier and more practical to use.

Here are some formulas which I no longer have the source for, but they are pretty accurate. For those of you who have a good idea what your body composition is, plug in the numbers and turn the crank. The results should be pretty close.

Percent Body Fat Formulas (Based on Girth Measurements)

Men over 30: % Body Fat = Waist + 0.5 x Hips - 2.7 x Forearm - Wrist
Men under 30: % Body Fat = Waist + 0.5 x Hips - 3.0 x Forearm - Wrist

Women over 30: % Body Fat = Hips + Thigh - 2.0 x Calf - Wrist
Women under 30: % Body Fat = Hips + 0.8 x Thigh - 2.0 x Calf - Wrist

Three or four 400m or 800m repeats done a couple of times each week will produce a more fit person than running 3 or four miles a day, do the math.

1) Get the form right

2) Get fast (an 800m pace is a lot less apt to injure you than a sprint)

3) Add distance if that is a training goal, and for a mountain hunter it probably should be leading up to the hunting season.

Oh, boy. That's way too complicated for me.
What I've found works best for me is hiking in and out of my local canyons every other day or at least three times a week. E