Full Body vs Push Pull Legs: Which Fits Your Week?

The two splits are not opposites. Both can give every muscle two sessions a week. They get there with a different number of days.

At equal weekly volume and equal frequency they produce similar growth. What separates them is practical: how many days the split demands, and how clean the progression signal stays.

Hard sets and frequency drive growth. The split decides how they get delivered. A meta-analysis of training frequency found that two sessions per week per muscle beat one, with little extra from going higher. Get those two variables right and the label on your split stops mattering.

Take 12 hard sets for a muscle in a week. Full body does it in four sets across three sessions. Push/pull/legs does it in six sets across two. Same total, same per-session ceiling respected, different number of gym visits.

That is the trade. Push/pull/legs buys you shorter sessions. Full body buys you fewer days. Neither buys you more growth on its own.

On three days, full body trains every muscle three times a week. Push/pull/legs trains each once. Same three days, very different frequency. That is where the argument is won.

There is a second frequency to watch: how often you repeat each exercise, not each muscle. This is where the A/B rotation fails. Push A and Push B look disciplined, but every individual lift now appears once a week, or once a fortnight depending on the rotation.

You get better at a movement by repeating it. Fixed exercises also keep progression readable: same lift, same load, last week's number. Swap the movements and you lose the cleanest signal you have.

Henselmans makes the same point about fixed exercise selection. It is what lets you monitor progression at all.

A full body session is five or six exercises. A push day can carry eight. More exercises per session means the ones at the end get whatever effort is left. Sets close to failure are the prerequisite for growth, and they are easier to produce when the session is short.

The split is downstream of effort. A set that stops four reps short of failure barely registers, whether it sits on a full body day or a push day. The productive range is 8 to 15 hard sets per muscle per week, and hard is the operative word.

Splits get more argument than effort does, and effort is the larger variable. Two identical programs can differ by more than any split choice, because one trains close to failure and the other trains to a number.

If you are not sure whether your sets are hard enough, you almost certainly have room to push. Stop within 0 to 2 reps of failure and the split starts to matter again.

Full body, three days: leg press, chest press, row, pulldown, and two accessories, repeated every session.

Push/pull/legs, six days: two push days, two pull days, two leg days. To reach two sessions per muscle you need both of each, which is why the split wants six days rather than three.

The volume per muscle can be identical in both. The difference is how many trips to the gym the same volume costs you.

Full body fails when the sessions get long. Six exercises turn into nine, the session runs past 90 minutes, and the last three exercises are junk volume. The fix is to cut exercises, not to add days.

Push/pull/legs fails when it is run on four or five days. Each muscle lands at once or one and a half times a week, which is the frequency problem the split was supposed to avoid.

If you have five or six days and want more isolation work and more attention per muscle inside a session, push/pull/legs is a good structure. At five days or more each muscle still hits twice. Below five, it does not.

If I had three days I would run full body. On four, upper/lower. Push/pull/legs only earns its place once the week is long enough to give every muscle two sessions.

The deciding factor is whether your lifts are moving. Same exercises, same order, last week's weight in front of you. GainsLog shows that at the start of every session.