How to Calculate One Repetition Maximum (1RM) in Bench Press - Tutorial

How to Calculate One Repetition Maximum (1RM) in Bench Press - Definition, Formula, Example

Definition:

The bench press is an exercise term, in which the weightlifter lies on a bench in horizontal position with feet and raises a weight with both arms.

bench-press

Formula :

One rep max = (-1.89 ) + (1.16 x W) + (1.68 x R)
Where,
W= Weight R= Number of Repetition

Example:

Find out the one rep max value if the weight of a person is 49 kg and number of repetition is 4.

Given,

Weight= 49 kg Number of Repetition= 4

To Find,

One repetition maximum value

Solution:

Substitute the given values in the formula to find the one rep max value, =(-1.89 )+ (1.16 x W) + (1.68 x R) = (-1.89 )+ (1.16 x 49) + (1.68 x 4) = 61.67 Approx 1 rep max is 61.67

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