Seated Leg Press Calculator

Formula

The formula to estimate the One-Rep Max (1RM) for the seated leg press is:

\[ 1RM = (WL + BW) \times (1 + 0.033 \times R) \]

Where:

\( 1RM \) is the one-rep max (lbs).
\( WL \) is the weight lifted on the seated leg press (lbs).
\( BW \) is the body weight of the individual (lbs).
\( R \) is the number of repetitions performed.

What is a One Rep Max?

A one-rep max (1RM) is the maximum amount of weight that a person can lift for one repetition of an exercise. It is a standard measure used to assess the strength of an individual and is commonly used in weight training programs to set appropriate workout intensities.

Example Calculation

Consider an example where:

Weight Lifted (WL): 200 lbs
Body Weight (BW): 150 lbs
Number of Repetitions (R): 10

Using the formula to estimate the One-Rep Max:

\[ 1RM = (200 + 150) \times (1 + 0.033 \times 10) = 350 \times 1.33 \approx 465.50 \text{ lbs} \]

This means that the estimated one-rep max for this example is approximately 465.50 lbs.