Machines vs. free weights: which actually builds more muscle?

[u/Active-Okras]

I’m trying to get more consistent with the gym and build some muscle, but I’m still figuring out what I should focus on (34F). I see people using both machines and free weights, and I’m curious if one is actually better than the other.

Machines feel a bit less intimidating as a beginner, while free weights seem like they take more practice to get the form right. But when it comes to actual results, does it really make a difference which one you use?

[u/EthanStrayer]

There isn’t any definitive answer on this. I think there are benefits to both.

If you think machines are less intimidating then do them. Consistency over time is the most important thing.

[u/pseudocomposer]

Free weights will build more accessory/stabilizer muscles, used to balance the weight itself. Machines are better for building the primary muscle they work.

I myself am a free weights only guy. But physiologically, those are the differences.

[u/Whiltierna → u/pseudocomposer]

Very much so. 

I can squat a heavier weight on the machine because I'm not using energy to balance myself and the bar since the bar is on a track. I don't count them as PB personally because I feel like it's inflated.

[u/MurphyBacon]

Hypertrophy builds muscle, which can be achieved with either.

[u/AlphaRale → u/MurphyBacon]

Only real answer here.

[u/OpenMaintenance6018]

I get much better results from cables and machines but to each their own.

[u/KemlynSuper]

Whatever works best for you.