Comment on: “Comparison of Periodized and Non-Periodized Resistance Training on Maximal Strength: A Meta-Analysis”
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We read with interest the recent article published by Williams et al. , Comparison of Periodized and Non-Periodized Resistance Training on Maximal Strength: A Meta-Analysis, in which the authors aimed to compare the effect of periodized (PER) versus non-periodized (NP) resistance training (RT) on strength gain. The researchers analyzed changes in muscle strength measured by one repetition maximum (1 RM) test on the bench press, leg-press, and back squat exercises and observed that “periodized resistance training plans have a moderate effect on 1 RM [effect size (ES) = 0.43, 95% confidence interval (CI) 0.27–0.58] compared to non-periodized training plans.” This led them to conclude that, “… variation in training stimuli appears to be vital for increasing maximal strength.”
We commend the authors for conducting a rigorous meta-analysis with a sound methodology. However, while the reported data do in fact support a strength-related benefit for periodization, we believe...
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No sources of funding were used to assist in the preparation of this letter.
Conflict of interest
João Pedro Nunes, Alex S. Ribeiro, Brad J. Schoenfeld, and Edilson S. Cyrino have no conflicts of interest relevant to the content of this letter.
- 5.Baker D, Wilson G, Carlyon R. Periodization: the effect on strength of manipulating volume and intensity. J Strength Cond Res. 1994;8:235–42.Google Scholar
- 7.Herrick AB, Stone WJ. The effects of periodization versus progressive resistance exercise on upper and lower body strength in women. J Strength Cond Res. 1996;10:72–6.Google Scholar
- 8.Monteiro A, Simão R, Farinatti P. Manipulation of exercise order and its influence on the number of repetitions and effort subjective perception in trained women. Braz J Sports Med. 2005;11:143–6.Google Scholar
- 9.Schiotz MK, Potteiger JA, Huntsinger PG, Denmark DC. The short-term effects of periodized and constant-intensity training on body composition, strength, and performance. J Strength Cond Res. 1988;12:173–8.Google Scholar
- 10.Souza EO, Ugrinowitsch C, Tricoli V, Roschel H, Lowery RP, Aihara AY, et al. Early adaptations to six weeks of non-periodized and periodized strength training regimens in recreational males. J Sport Sci Med. 2014;13:604–9.Google Scholar
- 11.Stone MH, Potteiger JA, Pierce K, Proulx C, O’Bryant HS, Johnson RL, et al. Comparison of the effects of three different weight-training programs on the one repetition maximum squat. J Strength Cond Res. 2000;14:332–7.Google Scholar
- 15.Kramer JB, Stone MH, Bryant HS, Conley MS, Johnson RL, Nieman DC, et al. Effects of single vs. multiple sets of weight training: impact of volume, intensity, and variation. J Strength Cond Res. 1997;11:143–7.Google Scholar
- 19.McGee D, Jessee TC, Stone MH, Blessing D. Leg and hip endurance adaptations to three weight-training programs. J Strength Cond Res. 1992;6:92–5.Google Scholar
- 23.O’Bryant HS, Byrd R, Stone MH. Cycle ergometer performance and maximum leg and hip strength adaptations to two different methods of weight-training. J Strength Cond Res. 1988;2:27–30.Google Scholar