Research

Mixed

High loads (>60% 1RM) are superior to low loads for maximizing strength gains, while both high and low loads can produce similar hypertrophy if performed to failure.

To build strength, prioritize heavy loads (>60% 1RM). To build muscle, you can use either heavy or light loads, provided you take your sets close to failure. Light loads are a viable option for joint health or accessibility without sacrificing muscle growth.

GoodQualifiesHIGH confidence
However, high loads appear more suitable to maximize the strength gains.
Giuseppe Coratella · Sports Medicine - Open · 2022

Why this rating

Supported by meta-analyses comparing high vs. low loads.

Source

Appropriate Reporting of Exercise Variables in Resistance Training Protocols: Much more than Load and Number of Repetitions

Giuseppe Coratella · Sports Medicine - Open · 2022

narrative_reviewCited 79×
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