The Single Set vs. Multiple Set Debate
Since it′s becoming clear that, under most conditions, a single set is insufficient to promote maximal gains in muscle strength and size, this debate is in its final days. So how about hammering a few final nails into the coffin of the single set mentality?
Single- vs. Multiple-Set Strength Training in Women (Schlumberger et al).
In this study, 27 experienced women (experienced in weight lifting, that is) were recruited to participate in a 6-week training program that consisted of 2 days of strength exercise per week. Each training day consisted of 6 total exercises. Group 1 performed a single set per exercise for the 6 exercises, group 2 performed 3 sets per exercise for 6 exercises, and group 3 performed no exercise. Reps were kept in the 6-9 range for the exercise groups.
In these subjects, the 1 set group, as expected, gained more strength than the control (no exercise) group. However, statistical analysis revealed greater improvements in muscle strength in the 3 set group vs. the 1 set group. If this is shocking to you, you′ve either not spent much time in the gym or you′ve been brainwashed by the late Mike Mentzer.
Three Sets of Weight Training Superior to 1 Set With Equal Intensity for Eliciting Strength (Rhea et al).
In this study, 16 men were recruited to participate in a 12-week training program that consisted of 3 days of strength training per week. While training intensity was designed to be equal in both groups, one group performed 1 set per exercise while the other group performed 3 sets per exercise. Reps were kept in the 4-8 range.
In these subjects, the 3-set group out-performed the 1-set group in bench press and leg press strength, again demonstrating that multiple sets are often superior to single sets for muscle strength.
While these studies show that multiple sets performed for a given exercise are superior to single sets, the other associated exercise parameters must be recognized before the results are extrapolated to other training situations. In both studies, the subjects weren′t elite lifters or athletes. In addition, the total work per muscle group was low in both conditions, as was the total amount of work for the week. Therefore, the results may be most applicable for the average personal training client. When dealing with experienced trainees and elite athletes, we′ve got an entirely different animal.
source: http://www.johnberardi.com/articles/qa/afc/afc_mar282003.htm
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