1 RM Strength Testing - One Rep Max Estimate Method

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One Repetition Maximum Strength Testing

One Rep Max (1 RM) Estimate Method

Directions:  

Test Weight: Select a test weight from the left-hand column that you can lift for approximately 6-10 repetitions.

Warm-ups: Perform 15 repetitions with 50% of your selected test weight. Rest 4-5 minutes before beginning your strength test with the test weight you have selected.

Strength testing: Perform as many reps as you can with your selected test weight. Maintain tempo and only count reps that are performed correctly. Always use a spotter. If the test weight is too light and more than 15 reps are going to be done — stop immediately and rest another 4-5 minutes. Resume testing with the next heavier test weight.

Refer back to the Test Weight Table: Cross-reference the test weight used (left-hand column) and the repetitions performed to find your "One Repetition Max Estimate" (1-RM Est.) 

Example: A 225 lb. test weight lifted 8 times would result in a 280 lb. 1-RM Est. (225 lb. x 1.247 = 280.575 lb.). The coefficient factors can be used to determine a 1-RM Est. if you prefer to use a test weight that is not on the Table.

Strength Testing - One Repetition Estimate Table

The above table is from the Target•Weight•Coach™ Slide Chart - click here to find out more

Calculate your own 1-RM Estimate using the Coefficient Factors and Calculator below.

 The weight lifted x the coefficient factor for the reps performed = your 1 rep max estimate.

Factor: 1.057 1.086 1.116 1.148 1.179 1.212 1.247 1.282 1.318 1.355 1.393 1.431 1.471 1.513
Reps: 2 3 4 5 6 7 8 9 10 11 12 13 14 15

 

 

 

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