Exercising with weights places more demand on the muscles and help to tone and build muscle as well as increase bone density.
Whether you exercise with a set of dumb bells; a bench with a rack of barbells or a weight machine with a weight stack and a set of stations you are accomplshing the same thing.
The advantage of working out on a machine is primarily ease of use - no switching plates from one exercise to the next - and safety. There is no danger of the weights falling on you.
Keeping muscles strong is important at any age but even more so as we grow older. Keeping strong helps u s in day to day tasks of lifting, carrying, going up and down stairs, bending and reaching.
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