That's what a horse straddle is but you hold it mid squat until you can't, burns like fire
My philosophy is to have the body go through the full movement, stretching and balance. With the ability to alter the intensity according to the time of day and what you feel like doing.
So, a squat all the way down until the fingertips or knuckles touch the floor, keeping the eyes forward to maintain the correct back posture, then all the way up arms as high as possible, back stretched upward and finally standing on your toes, - then tilt to the left and right as far as possible to improve flexibility and balance, -- then back down. 10-40 times for a set. If you are feeling good you might do 2-4 sets of 40 reps each.
And then do this 3-4+ times throughout the day.
I have about 5 pairs of Hoka shoes. 3 for jogging and 2 for daily use. They have very thick soles that make balance a little more difficult.
I also have a set of 20lb dumbbells(2x20lbs=40lbs) I often use for upper-body strength. The doctor said more weight would just cause problems. Sometimes I think I would like to go to get a set of 25 and 30-lb dumbbells to use once in a while. But given I used to do Olympic style weightlifting and looking at the health and age stats for well-known weightlifters - I will probably just stay with the 2x20lb. dumbells. I don't need more sciatic nerve type problems.
I run every 2-3 days, but at my age it is typically very slow jogging, with fast running in between. I can still run at an 8 min/mile pace for short distances, a mile in 11-12 minutes if I push myself, but otherwise I am slow - I've decided from putting on too much weight, - especially for more than 1 mile runs..
Running does seem necessary for me. That can be overdone, as well. All the years of long-distance running I did (50+miles/week) - in the sun - since the early 70's has had its legacy, - leaving me with occasional surgery for skin cancer on my face and scalp. Although new studies from Australia show that 1000mg of niacinamide two times daily, greatly reduces the incidence of skin cancer. So far, I think it makes a difference.