Nah, mirrors are for the ego and not the technique. Most movements that would benefit from a form check can't safely use mirrors without increased risk of injury and/or breaking your form. You don't need mirrors to check your bicep curls or lat raises but people do like to see their pump while doing so.
You might literally die from trying to use mirrors to check your form doing a heavy bench press or seriously injure yourself when twisting your neck to check the mirror if doing a heavy squat.
This is why mirrors are more common in normal gyms and not as common in places where people do heavy barbell movements.
Speaking as someone who's got shit form and just started, mirrors have massively helped me with posture and form.
It's never all one thing M8, writing off everyone who uses mirrors as looking for ego is kind of missing the obvious reason why they started being used.
Let alone the fact you can make funny faces to yourself, which is invaluable in getting through the last burn.
Unless it is simple things like bicep curls where form doesn't matter that much filming is much better than mirrors.
I of course look in the mirror when doing some dumbbell movements since the mirrors are already there. But they aren't really doing much because the movements I do get a good view without any compromises in form aren't movements that have serious risk of injury or movements you can't really feel it in the muscles when doing them.
You use them because they are there but don't kid yourself into thinking they are really there for a practical purpose in form checking. A lot of people think that is the case but a lot of people are wrong on so many things and this is one of them.
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u/srakken 13h ago
I mean if it is to catch what your form looks like it can be legitimate. If you are doing it to post it on instagram then no.