1RM Chest and Leg Press

How many warm-up sets should be completed?
How many 1RM attempts should be completed?
Tim completed his three warm-up sets and then successfully lifted 160lbs, and 220lbs, but failed to lift 260lbs.How can I guarantee that I will find the true 1RM (within 10 lbs) in the next two attempts?
Besides safety, what is the purpose of conducting warm-up sets?
If the person I am testing is concerned about lifting a heavy weight for a 1RM test, what alternative could I offer that would allow me to identify their 1RM?
If you conduct a test using a machine instead of free weights, how can I ensure that the tests will be comparable?

Sample Solution