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Abstract Nine different weight training programs were compared to determine which were more effective in improving strength. The experiment was conducted with the bench press lift for a period of 12 weeks with approximately 20 subjects in each weight training program. Subjects were tested for the 1 RM on the bench press lift at the beginning of training and at three-week intervals. Training took place three times weekly with the variations in programs involving one, two, and three sets, and two, six, and ten repetitions per set. The results showed that three sets and six repetitions per set were best for improving strength.
Richard A. Berger (1962) studied this question.