Research Says This Percent 1-RM is Best for Strength Gain

Do you know what percentage of your 1-RM (one repetition maximum) is optimal to increase strength? It is often thought to improve muscular strength, you lift a lower number of repetitions (typically 5–8) at 66–90 percent of your 1-RM. Jefit looked into this question and this is what the research showed. What is 1-RM Anyway? The term 1-RM signifies …

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