but, (pretty much) the only way to get abs to show is to work them pretty mush to desctruction...
(i.e do sit ups till you physically can't do them anymore).
I know that machine weights don't work the core muscles, (that are important for balance and posture, so in that sense it is better to do free weights,
(but however), doing freeweight can help you increase the core muscles that will help guard against back pain and injuries in later life. but doing free weights is a really good way to pull muscles that you houldn't be pulling, (perhaps in your back), (though this would mostly be with bad technique)...
so... for the most part I'd say that machines do help people (in terms of reducing injury).
Also there are some muscle groups that are hard to work without machines.
take weights that you pull down on a puly system, this is simillar to a pull up bar in terns of the movement, however not everyone can lift their own body weight...
certainly when I started going to the gym I found pull ups very hard, however as I've been training on machines I find pull ups a lot easier, and can easily do many more repetitions now.
(i.e do sit ups till you physically can't do them anymore).
I know that machine weights don't work the core muscles, (that are important for balance and posture, so in that sense it is better to do free weights,
(but however), doing freeweight can help you increase the core muscles that will help guard against back pain and injuries in later life. but doing free weights is a really good way to pull muscles that you houldn't be pulling, (perhaps in your back), (though this would mostly be with bad technique)...
so... for the most part I'd say that machines do help people (in terms of reducing injury).
Also there are some muscle groups that are hard to work without machines.
take weights that you pull down on a puly system, this is simillar to a pull up bar in terns of the movement, however not everyone can lift their own body weight...
certainly when I started going to the gym I found pull ups very hard, however as I've been training on machines I find pull ups a lot easier, and can easily do many more repetitions now.