The best workout split.

Our coaches hold the NSCA Certified Strength and Conditioning Specialist (CSCS) credential and have programmed splits for thousands of lifters inside Nishaana — talking beginners out of six-day bodybuilding splits and helping intermediates decide between upper/lower and push/pull/legs. The question "what's the best split?" gets asked constantly, and the honest answer disappoints people: the best split is the one you'll run consistently while training each muscle about twice a week. This guide compares full-body, upper/lower and push/pull/legs, then shows you how to pick by the days you actually have. It sits under the broader workout program guide, and you can log any of these splits free in the Nishaana workout tracker.

What is a training split?

A training split is how you divide your week of lifting across sessions — which muscles you train on which days. Full-body trains everything each session; upper/lower alternates halves of the body; push/pull/legs groups muscles by movement. The split is scheduling, not magic: it organises volume and frequency across the week.

Every split is really just an answer to two questions: how often does each muscle get trained, and how much work does it get each time? A three-day full-body plan and a six-day push/pull/legs plan can deliver the exact same 16 weekly sets for chest — they just spread them differently. Once you see splits as containers for weekly volume and frequency rather than secret formulas, choosing one gets a lot simpler.

The three you'll actually choose between are full-body, upper/lower, and push/pull/legs. A fourth — the classic body-part or "bro" split — still shows up in magazines, and we'll cover where it fits (and where it falls short) below.

Why the split matters less than you think

The split you pick matters far less than three things it contains: your weekly volume per muscle, how often each muscle is trained, and whether you progress over time. Research points to 10–20 hard sets per muscle per week, trained about twice weekly, with load or reps climbing. Any split that delivers those works.

Here's the pattern I see coaching: two lifters run the same push/pull/legs split and get opposite results. One quietly hits 16 hard sets per muscle and adds a rep most weeks; the other does 6 sloppy sets and lifts the same weight all year. Same split, completely different outcome — because the split was never the deciding variable.

The evidence backs this up. Schoenfeld, Ogborn and Krieger's 2017 meta-analysis found a graded dose-response between weekly sets and muscle gain, with each extra weekly set worth roughly a 0.37% increase in growth. [1] A separate 2019 trial in trained men found higher weekly volume produced more hypertrophy than lower volume. [6] And a 2021 review showed muscle grows across a wide span of loads and rep ranges as long as sets are hard. [5] None of that is a property of a particular split's name — it's what you put inside it.

The main splits compared

Full-body trains every muscle each session at high frequency; upper/lower splits the body in half for a balance of volume and frequency; push/pull/legs groups muscles by movement and scales to high volume; the body-part split trains one muscle per day at low frequency. Each fits a different number of training days.

Notice the pattern in that table: the splits people think of as "advanced" (six-day PPL) and "basic" (three-day full-body) both land every muscle at roughly twice-a-week frequency. The body-part split is the outlier — it's the only common option that trains each muscle just once. For a deeper head-to-head on the two most popular choices, see push/pull/legs vs upper/lower, and for the volume side of the equation, how many sets per muscle per week.

The evidence: why twice a week beats once

When total weekly volume is held equal, training a muscle twice a week produces more growth than training it once. This is the single most useful finding for choosing a split, because it rules the body-part split down and pushes most lifters toward full-body, upper/lower, or a six-day push/pull/legs.

Schoenfeld's 2016 frequency meta-analysis compared once- versus twice-weekly training at matched volume and found twice weekly produced superior hypertrophy (effect size 0.49 vs 0.30). [2] His 2019 follow-up review reached the same practical conclusion: with volume equated, higher frequency was at least as good as lower, and training each muscle two or more times a week is a sensible default. [3] The ACSM's 2026 resistance-training position stand likewise recommends training each major muscle group at least twice a week for hypertrophy and function. [4]

Why does splitting the same volume across two days help? Partly quality: your tenth hard set for chest on a fresh day beats your twentieth on a fatigued one. Partly the growth signal — muscle protein synthesis rises for roughly 24–48 hours after a session, so hitting a muscle twice a week keeps that signal elevated more often. The takeaway for split selection: pick something that lands each muscle about twice weekly, and you've already got the most important variable right.

How to pick a split by days available

Start with the number of days you can realistically train, then map it to a split: 2–3 days points to full-body, 4 days to upper/lower, and 5–6 days to push/pull/legs. Set the days honestly first — a plan you finish every week beats a longer one you quietly abandon.

This is the step most people skip. They pick the split that looks impressive, then try to force their week around it. Do it the other way: decide how many days you'll genuinely show up, then choose the split that fits and still hits twice-a-week frequency.

Two honest days beat five aspirational ones. If your real week is three days, a three-day full-body plan will out-build a six-day split you only half-complete — because you'll actually hit your weekly volume and keep the frequency high. Browse ready-made options in the program library or start from the push/pull/legs guide.

Matching the split to your goal and experience

Beginners do best on full-body for its high frequency and low complexity; intermediates thrive on upper/lower; advanced lifters can justify five- or six-day splits to fit more volume. Your goal shifts the emphasis — strength favours frequent heavy practice, size favours volume — but twice-a-week frequency holds across all of them.

Experience matters because recovery capacity and the volume you need both rise over time. A beginner grows on 10 weekly sets and recovers easily, so a simple three-day full-body plan is ideal. An advanced lifter may need 18–20 sets for a stubborn muscle, which is hard to fit into full-body sessions — so more days and a push/pull/legs structure start to earn their place. Rushing to a six-day split as a novice just adds fatigue you don't need yet.

For strength, the frequency point cuts even harder: lifting heavy is a skill, and skills improve with practice, so training the squat, bench and deadlift two to three times a week beats maxing them once. For size, keep the emphasis on total weekly volume in the 10–20 set range. Same principles across the board — the split just packages them.

Sample weekly layouts for 3, 4, 5 and 6 days

Here are four concrete weekly layouts, one for each common number of training days. Each one lands every major muscle about twice a week and leaves rest days where you need them. Treat them as templates — the exercises inside can flex, but the frequency structure is the part that earns results.

3-day full-body

Rotate three slightly different full-body days so each muscle is trained three times a week without repeating the identical session. Ideal for beginners and anyone with three solid days.

4-day upper/lower

Every muscle trained twice with a clear rest day between similar sessions. This is the layout most intermediates should default to.

5-day push/pull/legs + upper/lower

A hybrid that keeps most muscles near twice a week while adding a fifth day of volume. Good for committed lifters who can't quite commit to six days.

6-day push/pull/legs ×2

The highest sustainable volume with clean twice-a-week frequency — but it only works if your sleep, nutrition and recovery keep pace. Sunday is a full rest day.

How to progress within any split

Progression is what turns a split from a schedule into results: add reps until you reach the top of your range, then add weight and drop back down. When you recover well, add a set or a training day. Whatever split you run, last week's numbers have to trend up over months.

The split gives you the container; progressive overload fills it. Double progression is the simplest reliable method and it works inside every layout above. You need to know last session's numbers to beat them, which is exactly why logging matters — the Nishaana workout tracker surfaces your previous sets and nudges the next target.

Run one split for 8–12 weeks and let the numbers climb before you consider changing anything. If a muscle is lagging, add a set or nudge its frequency up a day before you overhaul the whole plan.

Common split mistakes

The mistakes that sink a split are almost always the same handful: running a body-part split at once-a-week frequency, program-hopping before progression compounds, choosing more days than you can recover from or attend, and fixating on the split's name instead of its volume and frequency.

• Running a bro split at once-a-week frequency. — Blasting chest once every seven days trains each muscle at the low end of the frequency evidence. If you use a body-part split, either accept the trade-off or rotate so muscles get hit closer to twice a week.
• Program-hopping. — Switching splits every two or three weeks resets your progression before it can compound. Pick one split and run it for 8–12 weeks so the loads on the bar actually climb.
• Choosing a split you can't recover from — or won't attend. — A six-day plan you abandon by week three grows less than a three-day plan you finish every week. Set the days honestly first, then pick the split that fits.
• Chasing the "best" split name instead of the numbers. — Two lifters on the same PPL split can get opposite results because one hits 16 hard sets per muscle and the other hits 6. Volume, frequency and progression decide the outcome, not the label.
• An unbalanced split. — All-push-and-quads splits leave the back and hamstrings under-trained and set up posture and injury problems. Match pushing to pulling and quads to hamstrings roughly one to one.
• No way to progress built in. — A split with no logbook and no plan to add reps or weight is just a list of exercises. Decide your progression rule before week one and track it every session.

None of these are exotic. Picking a split is simple once you stop hunting for a perfect label and start matching training days to a plan that hits each muscle twice a week and lets the load climb. For the full picture on organising a week of training, the workout program guide ties it all together.

References

1. Schoenfeld BJ, Ogborn D, Krieger JW. Dose-response relationship between weekly resistance training volume and increases in muscle mass: a systematic review and meta-analysis (2017). Journal of Sports Sciences
2. Schoenfeld BJ, Ogborn D, Krieger JW. Effects of Resistance Training Frequency on Measures of Muscle Hypertrophy: A Systematic Review and Meta-Analysis (2016). Sports Medicine
3. Schoenfeld BJ, Grgic J, Krieger J. How many times per week should a muscle be trained to maximize muscle hypertrophy? A systematic review and meta-analysis of studies examining the effects of resistance training frequency (2019). Journal of Sports Sciences
4. Currier BS, et al. (American College of Sports Medicine). Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews (2026). Medicine & Science in Sports & Exercise — ACSM Position Stand
5. Schoenfeld BJ, Grgic J, Van Every DW, Plotkin DL. Loading Recommendations for Muscle Strength, Hypertrophy, and Local Endurance: A Re-Examination of the Repetition Continuum (2021). Sports (Basel)
6. Schoenfeld BJ, et al. Resistance Training Volume Enhances Muscle Hypertrophy but Not Strength in Trained Men (2019). Medicine & Science in Sports & Exercise