When trained lifters guess how many more reps they could do during bench press, their guesses are equally accurate whether they're guessing 1 rep left or 3 reps left, and this stays the same across different sets and sessions.

People who lift weights regularly are pretty good at guessing how many more reps they could do during bench press, usually only off by less than one rep, and they tend to guess a bit too low.

This claim says that how well people can guess how many more reps they have left in a workout doesn't depend on whether they're male or female, how long they've been training, or how strong they are at bench pressing relative to their body weight.

When people lift weights until they're almost too tired to continue, especially with arm exercises, they get better at guessing how many more reps they could do. It's like training your body to feel its limits more accurately.