There were so many posts to your discussion I needed to answer your question this way...
Before a reasonable answer can be given, the first two questions that need to be answered are What is your conditioning level? and Why are you lifting weights? Based on a resent study of 9000 individuals, everybody should be lifting weights for their health and not just their bones. The weighted vest works well for bones but does little for blood pressure, heart strength, balance development, blood sugar control, total body strength and independence with aging.
So back to your question. A beginner is going to lift differently than an experienced and conditioned lifter. I recommend 2 sets and a maximum of 12 repetitions to all of my clients. I am teaching people to lift weights for their health, not for body building. I would suggest that 2 sets vs. 1 set helps build better endurance if performed properly. 1 set works nicely to build maximum strength and power when you use large amounts of weight. If you are a body builder, you need more sets; but I presume you are not.
I do not recommend or see the benefit of lifting to exhaustion. That is more of a body building and athletic training model. Not really necessary for the rest of us.
I suggest you start with the weight that you can handle safely. The 10th repetition should be challenging. When you can go to 12 without any real challenge you can up the weight. But the amount of weight is not the real issue, it is the type of exercise you are doing with it.
I teach functional training which incorporates balance, strength, stamina, body control and flexibility into each exercise. No sitting in machines and many times you are using only one weight rather than two. This is a more challenging approach that forces most people to lift much smaller amounts of weight because of the demand on balance and cardiovascular conditioning.
A total of 2 hours of functional strength training is adequate for most people. You can get this in 2 one hour sessions or 4 thirty minute sessions or some combination.
Finally, your definition is directly related to your body fat and muscle mass. 3 sets to exhaustion without adequate protein can actually shrink your muscles. If your body fat % is higher than normal, fat will hide the definition you are talking about.
Think this about covers it.
If you have further questions or you would like to join our support group please feel free to email me at bebonestrong@sequoiahealth.com.
Woody McMahon





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