Strength training sets: How many for best results?

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  • With Mayo Clinic physical medicine and rehabilitation specialist

    Edward R. Laskowski, M.D.

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Question

Strength training sets: How many for best results?

What's better for strength training — one set or multiple sets?

Answer

from Edward R. Laskowski, M.D.

For most people, there's little evidence to support the superiority of multiset strength training. In fact, a single set of 12 repetitions with the proper weight can build strength as effectively as can multiple sets of the same exercise. Simply use a weight that tires your muscles at 12 repetitions. As you get stronger, gradually increase the amount of weight. To help ensure continued progress in your strength training program, make your strength training workouts progressively more difficult. It also helps to vary the type of exercise you do for each muscle group.

There's a caveat, though, if you hope to increase muscle mass significantly — during bodybuilding, for example, or to enhance performance in certain sports. In these cases, adding additional strength training sets may be beneficial.

References
  1. Wilmore JH, et al. Principles of exercise training. Wilmore JH, et al. Physiology of Sport and Exercise. 4th ed. Champaign, Ill.: Human Kinetics; 2008:186.
  2. Carpinelli RN, et al. Strength training: Single versus multiple sets. Sports Medicine. 1998;26:73.
  3. Carpinelli RN, et al. A critical analysis of the ACSM position stand on resistance training: Insufficient evidence to support recommended training protocols. Journal of Exercise Physiology-online. 2004:7:1. http://www.asep.org/files/OttoV4.pdf. Accessed March 24, 2010.
  4. Laskowski ER (expert opinion). Mayo Clinic, Rochester, Minn. March 24, 2010.
AN00893 July 23, 2010

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