Quote (bones0187 @ Feb 27 2015 04:19am)
how is smith machine worse for your joints, it takes away needing stabilizer muscles putting LESS pressure and stress on your joints...
It doesn't account for the mechanical differences of each individual as the bar path only moves on 1 linear plane. A regular free weight allows you to move the bar to accommodate for that.
Secondly, your chest isn't recruited as well as a bb bench allows you to bring the bar back when you drive up which is optimal for the contraction of both the upper and lower pecs.
Third, the movement of the bar going in a linear pattern on a y axis is forcing you to place more tension on your elbows. Instead of shifting the load from your elbows to your upper chest as you drive the bar back, you're pushing straight up over your elbows. It's much harder on your elbow ligaments and is more of a Tricep dominant exercise.
Fourth, if you flair your elbows to contract your upper chest, your shifting the load to your front delts much more than your upper chest. Also, bringing the bar down high on your upper chest doesn't engage the lower portion of your chest as if you were able to tuck your elbows making it an insufficient exercise in comparison to something like dB incline.
I'm sorry for tweaking out but seriously man, you're only making these noob lifters more prone to bad techniques. Nobody here has a physique that can compare to yours as you're enhanced. Noobs are going to be more prone to listen to you. You need to take that responsibility seriously as you'll be naturally put on a pedestool for your physique. They should research things for themselves, but the truth is that they won't. Hope this helps.