Leighton
In lieu of other responses let me fill out a bit on what I said...
The bitter truth of training is doing something once won't have much effect.
The flip side of training is also true: Doing plentiful WILL have an effect.
PS Don't worry about having to train frequently - because the other advantage is - that each time doesn't have to last very long
I still think free-weight training might be a good beginning.
(Safely) hold a 12kg or 16kg kettlebell (Or BB plate) close to your chest. How does it feel?
Well that's fine, but that is not enough information yet! Find out if it feels the same the next day. And the next.
Are you stronger at certain times of the day/week, or under certain circumstances (better sleep)? Does it begin feel harder or easier to hold the weight? Are you going faster than your system is comfortable with? Can you do it and smile at the same time? How are you breathing?
Take your time to introduce weight bearing over a period of time. Play with duration (sets/reps/tut).
No harm in incorporating recovery breath practice before after or between reps (always be breathing slower)
After a month adaptions WILL have taken place in your body. & the start of your journey is one month behind.
Over time, you will progress. Consider a time ahead of you and you're comfortable holding a 20kg or 24kg bell or plate.
You will be a much stronger person, and it should feel nice.
After a month it might cross your mind to begin incorporating variation days. Consider barbell work or other KB isometric work; which would be rack holds; suitcase holds; or cook carry sequence. All of these can help make you stronger, if you use good programming and good form.
Misc. considerations.
I've just received Original Strength (OS) restoration because of the way a lot of inspirational folk here have spoken about it. Search the forum for more info.
MAF walking can be a tool used to accomplish many goals, and many would agree its a good suppliment to a beginners plan. Walk tall.
Log what you feel because a training log can develop into a good place to ask questions.
Consult a professional if walking or any of it causes pain or lengthy discomfort.
A SF instructor will be a good resource at any stage.
Programing any of the above will be personal to you, your ability, and your goals.
And now for something completely different.
That E Hall half-ton deadlift was inhuman!!!