the total numberof repetitions needs to be adjusted (the longer it takes to perform a rep, the fewer the repetitions that can be performed, all other things being equal)
For example, if the athlete did 5 reps with 100 kg on the bench press in the testing session, which equals to (5 x 100 x 0.0333) + 100 = 115 kg 1RM, we can use 90 % of that number to start the next big / new cycle of training.