Dear Editor,

I read the meta-analysis published in a recent issue of Sports Medicine with great interest [1]. It is a comprehensive analysis of relevant publications within the last 20 years. The authors categorized the optimal load for power of three different resistant training exercises based on the percentage of one repetition maximum (1RM). Zone 1 was <30 % 1RM, zone 2 was between 30 and 70 % 1RM, and zone 3 included optimal loads from 70 % up to 100 % 1RM. After careful and detailed analysis, the authors concluded that there should be exercise-specific optimal loads for optimal power production when performing different resistant exercise. More specifically, optimal load for peak power production during jump squats should be lighter (<30 % of 1RM), during squats should be moderate (from 30 to 70 % of 1RM), and during power clean and hang power clean it should be heavier (>70 % of 1RM).

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