Definition
The heaviest weight you can lift for a single repetition—the ultimate flex that makes gym bros respect you for about 3 seconds.
Example Usage
My bench press one-rep max is 315 pounds.
Origin
Fundamental strength testing metric, used since the advent of weightlifting sports
Fun Fact
Most trainees never need to test their actual 1RM; estimates from multiple reps are safer and nearly as accurate.
Source: Strength and Conditioning Standards
Related Terms
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