As a noob even the most basic attention to consistency and diet can get you great results for the first few months.
And to be honest, from a muscle building point of view, most people will be very happy with just the beginner results. Most of the anesthetics of a good body come from having relatively low body fat and this is best achieved from attention to diet and moderate exercise
I do think a lot of people need a people-based source of motivation, whether it's a human connection such as a PT or a friend who nags you to go with them, or an upcoming sporting event you've told people about like a marathon, or an online community.
Example of the latter: I had friends who after we moved apart post-Uni did 100pushups.com for a time with a shared spreadsheet to track progress against each other. That was quite fun.
People who can David Goggins their way through without any of that are fantastic, but I don't know what their secret is. Mine have always been people-based.
I did enjoy how it made my back feel, but then Covid hit and everything went out the window. It's really hard for me to work up the will to do it and then build up the regularity to keep doing it. I hate it too much. But I do love the result.
Put a chair/stool in front (not under) of pullup bar, rest one leg on it - now you will be able to do at least one pullup. After couple of weeks you will be doing normal pullups. Absent great genes your organism will do anything in its power to conserve energy and resist gaining muscle mass without signaling the need for more strength. The more weight you lift the stronger the signal.
I would like to add for others, you can go from 0 to pull-ups with just a bar, which I imagine is much cheaper too. I certainly did and my fitness level was minimal.
It's a case of progressions. For instance starting with negative pull-ups:
- Use a stool or just jump to the top position of a pull up
- lower yourself down with control, as slow as you can. At first this might be 1 second!
- Repeat for sets and reps
- when you hit 3 sets of 8 reps, slow down your descent another second or two
- Repeat until you've built up to 10 second reps, 3x8
At that point you should have the strength to be able to do a pull-up. You may need to ease into the technique, if so, introduce a resistance band to help train the motion, and gradually reduce your dependency on it.
How is a bar cheaper? It's a solid thing that needs to be attached to something solid. A TRX is just a strap you can hang on a door. (I actually want to attach mine to a wall or ceiling, which makes it a bit more complicated, and at that point, maybe I might as well go for a bar.)
I don't have a pull-up bar because I don't see the point: I couldn't for the life of my lift my own bodyweight; I'm first using the TRX to build up some strength.
My big problem, as always, is discipline. I haven't done anything in months. I need to restart. The personal was rather expensive and I wasn't entirely happy with him, but it does help a lot with the discipline.