They're not. They are great for isolation because they are not dependent on gravity and give a constant tension through the entire movement. However they do not work the stabilizing muscles enough to strengthen them so even if you can bang out what would be 315 on the pec deck and/or smith you're not going to bench it because you don't have the ability to stabilize the load.
This is why a new bencher's biceps and lats grow a little even though they don't really work them directly; they're working as a counter force to the chest and the tris.
>>35613679 They don't actually, the force used is dependent on the leverages of the movement. Take a curl the most iconic of isolation movements. The movement is an arch from the top to the bottom then up again. In the free weight version the top and bottom need less applied force than the middle with the weight is farthest away from the body. Doing this isolation in a machine means there is a even equal amount of force needed for the entire movement. However again the barbell and dumbbell curls work more than just the bicep so if you not just trying to get your show muscle as big as possible through isolation stick to the free weight version.
>>35613519 idk after using machines for like three months last year all of my maxes were cut in half when I returned to free weights. I think they're evil. They're in cahoots with the Jews who run the internet to steal your strength.
because they effectively eliminate 1/3rd of any training impulse. think about the bar path of a machine. it's essentially a 2 dimensional path since it doesn't have the factor of 'side to side balance' that a comparable free weight movement would have. they are still useful for getting in additional volume though. just be sure to get all your bb/db lifts out the way early.
>>35613679 not really. but for anyone who doesn't have the goal of bodybuilding where squeezing and contracting the muscle is the goal that is not so important since no object in real life will ever require your muscles respond the way they have to respond to a machine with an excenter disk (which by the way are the only machines that will keep constant tension on your muscle. regular machines like a pec deck for example have the same tension curve a regular barbell bench has).
It's probably much less likely, due to a few reasons. First is the fact that females are usually much more flexible than males. Second, females usually have weaker muscles than men. Both will make that more likely to happen.
Best way to pretend this is 1.don't lock your knees at the end 2.don't place your feet low on the plate, instead, place them much further up near the top
don't use weight that is much too heavy for you, better off doing higher reps on this machine anyway. save extra heavy, low rep work for squats and deads... lol
>>35613519 >why are machines bad? They don't require any real control over the resistance other than pushing/pulling. Benching 100kg (where the bar can move in any direction) is much, much harder than pushing 100kg on a chest press machine (where the resistance is coming from one point via pulleys). The more "free" the weight is, the harder you have to work to control it, most people who move from a chest press machine to free weights will have the weight start going everywhere because they aren't used to moving outside of the allowed range of movement by the machine.
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