My source of information is Fleck and Kraemer. Their 2002 article in journal "Medicine and Science in Sports and Exercise" has been adopted by Americal College of Sports Medicine as their recommendation for Resistance Training Programs. They are the most well known researchers in the field of Resistance Training. Dr W Kraemer is Professor in University of Connecticut. Dr S Fleck is chair of the sports science dept at Colorado College. Their latest book is 'Designing Resistance Training Programs 3rd Ed, (2003).
Methods of training are different for endurance, strength, power, and hypertrophy (body building).
SET:
A Set always means to doing enough repetitions till you go to voluntary failure - means you cannot perform one more complete repetition.
Recommended to moderately advanced trainer: Use at least 80% of 1M weight. (1M means that you can only do one repetition of the weight and you have to rest before you can do another one). If you are usine 80% of 1M, and you can perform more than 12 repetitions to failure, then increase the weight.
If you are using a weight that doesn't make you fail after 12 reps, then it is just warm up and not work out. They categorically say that 'it is wastage of time and you will have no benefit.'
HOW MANY SETS IN AN EXERCISE:
At least 3 (for strengh). For body building (Hypertrophy), 4. There is a vast amount of research available that shows that 1 SET DOESN'T WORK, except in untrained beginners (almost everything works in untrained beginners).
So 4 sets of 6-12 reps per exercise. 1st set, you will do 12 reps (this would be 12M weight). You may not be able to do 12 reps in the following sets, but you do reps till almost failure.
Methods of training are different for endurance, strength, power, and hypertrophy (body building).
SET:
A Set always means to doing enough repetitions till you go to voluntary failure - means you cannot perform one more complete repetition.
Recommended to moderately advanced trainer: Use at least 80% of 1M weight. (1M means that you can only do one repetition of the weight and you have to rest before you can do another one). If you are usine 80% of 1M, and you can perform more than 12 repetitions to failure, then increase the weight.
If you are using a weight that doesn't make you fail after 12 reps, then it is just warm up and not work out. They categorically say that 'it is wastage of time and you will have no benefit.'
HOW MANY SETS IN AN EXERCISE:
At least 3 (for strengh). For body building (Hypertrophy), 4. There is a vast amount of research available that shows that 1 SET DOESN'T WORK, except in untrained beginners (almost everything works in untrained beginners).
So 4 sets of 6-12 reps per exercise. 1st set, you will do 12 reps (this would be 12M weight). You may not be able to do 12 reps in the following sets, but you do reps till almost failure.