You will be lucky to live to age 82 much less make an exercise video. I very very rarely see any one over age 75 in the gym.
People are shocked when they find out my age. Almost all think I am 65 years old.
Scripture says.... Bodily Exercise profits little......however it does profit nonetheless.
1 Timothy 4:8 For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.