Question

After 8 weeks of working out, Ethan wants to see if his 1 rep max, for bench press, has increased. He decides to bench 155 pounds and completes 10 total repetitions. What is Ethan's new 1 rep max?

Answer 1

Using the Epley formula which is a common method to estimate the 1RM, Ethan's estimated one-rep max after 8 weeks of working out is approximately 206 pounds.

Step-by-step explanation:

Ethan has lifted 155 pounds for 10 repetitions, and he is curious about his new one-repetition maximum (1RM) for the bench press exercise. To estimate a one-rep max, fitness professionals often use various formulas. One of the most common methods is the Epley formula, which is calculated as (Weight × Reps × 0.033) + Weight. Applying this formula to Ethan's lift:

• Weight lifted = 155 pounds
• Reps completed = 10

Substituting these values into the formula, we get Ethan's estimated 1RM:

Epley formula: (155 × 10 × 0.033) + 155

=(155 × 0.33) + 155

=(51.15) + 155

=206.15 pounds

Ethan's estimated 1 rep max after 8 weeks of training is approximately 206 pounds.