Determining you one rep maximum

Make use of the table supplied and use as follow:

If a trainer manage to do 100kg bench press as example for, maximum 7 reps – that equates to a factor of 82.5
To determine the one rep max he will take 100kg and divide it by factor 0.825 for example:

100 / 0.825 = 121.21kg
which will be his theoretical one rep maximum.
Remember that a standard deviation of about 25% will be evident from one trainer to another.

One Rep Maximum*
		Number of Repetitions	Percent of Maximum (%)
1	100.0
2	95.0
3	92.5
4	90.0
5	87.5
6	85.0
7	82.5
8	80.0
9	77.5
10	75.0
* Adapted from Landers, 1986