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Wellness Wednesday for August 23, 2023

The Wednesday Wellness threads are meant to encourage users to ask for and provide advice and motivation to improve their lives. It isn't intended as a 'containment thread' and any content which could go here could instead be posted in its own thread. You could post:

  • Requests for advice and / or encouragement. On basically any topic and for any scale of problem.

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  • Advice. This can be in response to a request for advice or just something that you think could be generally useful for many people here.

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Gym question: why is it that online gym experts always recommend bench press, squats and deadlifts over any of the other machines in the weights room?

My gym is relatively empty when I go in the middle of the work day, I see a trainer once a week and go one other time (and do pilates on another day, guys I’m trying here). I say this because the reason he has me doing machines doesn’t appear to be that the bench press rack is always busy or something. I can do all three of the above exercises (with embarrassingly low weights, but still). But he almost always has me doing other stuff, particularly for legs where we do leg extensions and leg press and just do some squats at the end. For arms and back we usually use cables(?) (I don’t know what it’s called but it looks like this).

So is my trainer just a schmuck who knows nothing and should be putting me on the basic 5x5 or whatever? Are gym owners idiots for spending all this money on machines when all the weights room needs is squat racks, benches and free weights? Or do they do so solely for the unenlightened who don’t know that squats and deadlifts are all you need? Enlighten me.

Epistemic status: Uncertain

My lifting plan is centered around barbell work with some dumbbell accessory movements. I don't use machines at all. The reason to use free weights rather than machines is that you activate all kinds of smaller stabilizing muscles that aren't hit when using a machine because the machine guides the path of the weight for you. The advantage to using a machine would be to target your larger muscles in a very specific way.

My guess would be that gym owners invest in machines because:

  • They are safer; you can seriously hurt yourself on a bench press if you don't have a spotter and don't have safety rails set up. You can't hurt yourself with a chest press machine.
  • They're more user friendly; any schmuck can walk into a gym and immediately start using a machine rather than having to futz around with getting the settings right on a power rack and making sure they have good form etc.
  • They're more sexy; newbies love using machines

But no, you don't actually need them and in my opinion you're better off not using them ... but really as long as you're getting in the gym consistently and pushing yourself hard you will progress (especially at first); the specifics aren't really that important.

The reason to use free weights rather than machines is that you activate all kinds of smaller stabilizing muscles that aren't hit when using a machine because the machine guides the path of the weight for you.

Why do so few people take this to its logical conclusion and use dumbbells instead of barbells for presses? Dumbbells require more stabilization than a barbell does. At some point you get too strong for the heaviest dumbbells at your gym, but most people never get there.

I guess it must vary by gym? I would guess there are at least as many people in the average gym using the dumbbell rack vs the barbell benches.

I mentioned above that I think bench press is a sub-optimal exercise, I probably should have specified barbell bench press. I do think there is a place for both bilateral and unilateral exercises though. A lot of real world horizontal pressing involves using both arms. I also think the average gym has 100's as the heaviest dumbbells which is not really that much above the level of all the people you see barbell benching 225. You do see 120's in some gyms, but in most gyms big enough to have them you see people benching at least 315 on the barbell.

For overhead press I am actually pretty certain I see more people using dumbbell vs barbells.

Edit: Also, which muscle do actually get more engagement in dumbbell bench? If your lats are fully engaged aren't your scapula constrained by the bench anyway? Substantial loading of the rotator cuff during the bench press doesn't sound like a great idea.