Quote:
Originally Posted by mackinac81
I'm getting a gym membership today and want to start lifting weights. I'm not fat, but I could use some definition without getting big. Does anyone have experience about using free weights vs weight machines? What is the difference in terms of results? Does one make you bulkier than the other? Like I said, I don't want bulk, just want some good muscle definition.
Thanks!
Mackinac
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Definition is defined by body fat percentage. If you are a woman, you will start to see definition by about 14-16%. If you are a man, you start to see definition by 12 - 15%. Ripped abs are not seen until about 10% body fat. This is achieved through strict diet, in addition to cardio and resistance training.
You need to expend 3500 calories to burn 1 lb fat.
Machines are good for beginners since the mechanics of the motion are less likely to cause injury. However, accessory muscles that aid in lifting the weight are not utilized (not as good for body building). However, it is adequate for general fitness.
Free weights are ideal for body builders secondary to multiple angles and accessory muscles utilized. However, it requires strict form, and injury may result in a beginner or even intermediate bodybuilder.
There are hybrids of machines such as the cable machine, Bowflex and Total Gym that have some degree of range of motion without as much of a risk of injury.
To 'bulk up' requires high resistance with low repetitions (i.e. 85% of 1 rep max, for example for a chest press 100 lbs for 5-8 reps). To 'tone' requires low resistance with high repetitions (ie 50% of 1 rep max, biceps curls with 8 lb dumbell for 12-15 repetitions).
Get a trainer so you have a body composition analysis and a workout plan. Get a physical to make sure you have no underlying medical problems.