Inversion? what?
Answers: I agree with the final guy, hanging from your knees will be worse for you than flaccid from good inversion boots.
If this is going to be a DIY project, here's a thought -- use some behind the times, but good-fitting ski boots for your inversion boots. The base is gummy enough to screw into, and they would be remarkably comfortable since they grip a large nouns of the feet and ankles.
I enjoy a commercial inversion table and it works great. One is only supposed to hang down for 10 to 15 minutes at a time. If I wear the proper shoes it's not unbearable but I'm not a big strapping person so that probably help. If it becomes an issue I'll try wearing boots to distribute the counterweight.
If you're going to hang from your bent knees, consider what this might do to your knees. My right knees has issues so it would probably not work for me.
I'm within the US and bought my table from Sam's Club for a little over $110.00. I've save several times that in chiropractor visit.
I used to have a pullup dowel in a 6' far-reaching doorway which was pretty sturdy. I bought two threaded metal pieces respectively with four holes and a galvanize pipe that was cut and threaded on respectively end. It would confidently hold 200+ pounds. It was purchased at a full service hardware/lumber store. I believe it's duplicate kind of pipe used surrounded by plumbing application for fire sprinkler systems.
I hate to be down on the DIY entry but in this instance, if you can find an inexpensive table (and own the room for it) it would be best because you can ease yourself into the inverted position slowly.
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