For me, losing weight helped.
I’m 65, 6’ tall.
I had not ridden in 30+ years. Got a 24” Mountain Nimbus 3 seasons ago and weighed 220ish. I weighed 175ish in my teens when I rode all the time.
I was never big on trail ridding with my 24” Schwinn and standard street tire. I lived in Michigan suburbs which are flat, concrete, asphalt and dirt roads.
Dirt roads could be pretty challenging when not maintained and I cut through woods with dirt paths but the Schwinn was not good for going over large roots or anything of that nature.
Now, I have a 400’ long, uneven with minor slopes driveway in Vermont.
The stock saddle hurt my rear so much I got a Kris Holmes saddle which helped. I still got saddle sore fairly quickly.
I changed the peddles position for more power “ Adjustable cranks, Big Mistake!” { For Me}
Within a couple days, when I tried to mount it, the extra torque from moving the peddles that I had not gotten use to, shot the Uni behind me and I did a face plant. When I tried to catch myself I broke my pinky finger so bad, it required surgery to repair it. I can’t close it 100% to this day.
The following season I had problems with my eyes and didn’t ride it.
I told myself I wouldn’t ride it until I lost some weight, got a different tire & I was in better shape overall. The 3” Doro with its knobby tire is overkill for my needs and makes sharp pivots on a dime difficult at best.
I got new peddles without nubs as well. Its so much easier to reposition my feet when I mount it without them.
I weigh 190 now, that was the target weight I had in mind before I would ride again.
I’ve just started riding again and haven’t gotten saddle sore, I feel more in control. So far I’ve landed on my feet every dismount.
I have no doubt losing weight helped me.
We Uni riders navigate 360 degrees of motion, hinged on a single pivot point.
I have been using a treadmill 3 to 4 times a week as well. I used to hike a lot when I had a dog so now its convenient to use a treadmill for the same thing. Plus, I have a TV in front of it. I watch movies while walking. I rack up a few miles and get some cardio, burn some calories and keep my legs strong.
I fell hard and landed flat, entire body hitting the ground at the same time. 2 or 3 times I recall distinctly. When I weighed 220. Plus many clumsy dismounts that could have ended badly.
For me, at this point,. The 190 version of me seems to be better suited for riding than the 220 pound version and less prone to injury.