Final answer:
To properly warm up before attempting a 1RM, it is recommended to perform at least 3-5 warm-up sets with progressively heavier loads. This helps to prepare the body and reduce the risk of injury.
Step-by-step explanation:
In order to properly warm up before attempting a 1RM (one rep max) lift, it is recommended to perform at least 3-5 warm-up sets with progressively heavier loads.
For example, if your goal is to lift 100 pounds for your 1RM, you could start with a warm-up set using 50 pounds, then gradually increase the weight in each subsequent set until you reach your working weight.
This helps to prepare your muscles, joints, and nervous system for the heavy load, reduces the risk of injury, and allows you to perform at your best during the actual 1RM attempt.