Is the 4 day split the best training split?

Episode 170 with Steven Collins live today breaking down the best training splits for beginners, intermediate and advanced trainees.
What split do you use? comment below!
Keywords
training split, program design, volume, preferences, experience, muscle groups, injuries, recovery, training age, antagonist-agonist supersets, backloaded structural balance, individualization, training splits, frequency, volume, four-day split, upper-lower split, cross-body split, advanced body part split, personalization, program design