Which method is described for determining rep max using a 1RM?

Which method is described for determining rep max using a 1RM?

• A. Using a 1RM and applying 70-80%
• B. Estimating from body weight
• C. Using a 3 RM target
• D. Guesswork

Answer: (A)

Using a known one-repetition maximum and applying a percentage to it is how you estimate a rep max. The idea is simple: once you’ve established the true 1RM for a lift, you can predict how many reps you could perform at other loading levels by using standard percentages of that 1RM. A common guideline is that about 70–80% of the 1RM corresponds to roughly 8–12 repetitions for many exercises, which lets you set training loads without testing to failure every time. This approach is more reliable and systematic than guessing or estimating from body weight, and it’s different from targeting a 3RM, which uses a different baseline.

Using a known one-repetition maximum and applying a percentage to it is how you estimate a rep max. The idea is simple: once you’ve established the true 1RM for a lift, you can predict how many reps you could perform at other loading levels by using standard percentages of that 1RM. A common guideline is that about 70–80% of the 1RM corresponds to roughly 8–12 repetitions for many exercises, which lets you set training loads without testing to failure every time. This approach is more reliable and systematic than guessing or estimating from body weight, and it’s different from targeting a 3RM, which uses a different baseline.