How to Choose a Workout Split

How do you choose a workout split?

Start with the number of days you will genuinely train in a bad week, not a good one. That number picks the split, and everything else — exercise choice, set counts, rep ranges — is detail arranged on top of it.

Why frequency is the deciding variable

Hard sets per muscle per week is what drives muscle growth, and research on frequency generally favours splitting those sets across two sessions rather than one, at the same weekly total. Twelve sets for the chest land better as two sessions of six than one session of twelve, because the sixth set of a session is done fresher than the twelfth.

That is the argument for full-body, upper/lower and PPL, and the argument against a five-day one-muscle-a-day plan. It is not a large enough effect to override the plan you will actually follow, which is why the table above starts with your days and not with the theory.

The five splits, plainly

Full body, 2 to 3 days

Every session trains everything. Best for beginners, for anyone returning after a break, and for anyone whose week regularly loses a day. The main lifts get practised often, which is what a new lifter needs more than volume.

5x5 strength, 3 days

Two alternating barbell sessions, five sets of five, adding weight every session. The fastest route to a strength base for an untrained lifter, and it has an ending: when the linear progression stops, you move on.

Upper/lower, 4 days

Two upper days, two lower days, each muscle twice a week. The best default for most intermediates: it fits a normal week, it keeps frequency high, and no session is longer than about an hour.

Push/pull/legs, 6 days

Three sessions run twice. High volume, high frequency, and a real recovery demand. Good for lifters with a year or two of consistent training and a stable schedule. It also runs as a 3-day plan with a rest day between each session.

Bro split, 5 days

One muscle group per day. Lower frequency than the rest, and it wins on enjoyment for a lot of people, which is not nothing. If it is the plan that gets you to the gym five times a week, the frequency argument loses.

Three questions that settle it

How many days will you train in a bad week? Build for that number. A 6-day plan run four times a week is a worse 4-day plan.

How long can a session be? Fewer days means longer sessions. Three full-body days at 40 minutes will not carry the volume; either the days or the minutes have to give.

What does your gym look like at your hour? A plan built on the squat rack at 6pm in January is a plan built on waiting. The equipment you can actually reach is part of the choice.

What does not matter as much as you think

The name of the split. Two plans with the same weekly hard sets per muscle, the same effort and the same progression will produce similar results whatever they are called. Choose the arrangement you can repeat for twelve weeks and stop reading comparisons.

How Trackist picks for you

Trackist asks for the days you can train, your goal, your experience, your equipment, your age and anything that hurts, and writes the block from those answers — a split in the shape the table above would have pointed you to, with every exercise, set, rep target and rest already chosen.

If the answer turns out to be wrong, you say so. Change the training days on your profile and the plan moves with them; report a week as too hard twice and the remaining weeks are rebuilt around where you actually are. When the block ends, the next one is written from what this one produced.

Browse the plans to see what each split looks like in full, or download Trackist free on the App Store and answer the six questions.