Evidence & Training · Hypertrophy
Full Body vs Upper/Lower vs Push Pull Legs: Which Split Is Best?
What a meta-analysis shows about full-body and split routines, how to choose between full body, upper/lower and push/pull/legs, and sample weeks for each.
Few programming choices generate as much debate as the training split. Full-body routines are praised for frequency, push/pull/legs for focus, upper/lower for balance — and each has its devoted followers who are sure theirs is superior.
The research comparing split and full-body routines is now substantial enough to answer the question directly. When the total amount of training is equal, the split itself makes little difference. That shifts the decision from physiology to logistics: which structure fits your week, your recovery and your preferences?
This article summarises the evidence and gives practical templates for the three most common splits.
Quick answer
With weekly volume equated, split and full-body routines produce similar strength gains and muscle growth [1].
Choose by how many days you can train: full body for 2–3 days, upper/lower for 4, push/pull/legs for 5–6 — and make sure each muscle still gets enough hard sets, ideally over two or more sessions [2].
What the evidence says
Moderate evidenceA 2024 systematic review with meta-analysis pooled 14 studies and 392 participants that compared split and full-body routines. Changes in bench press and lower-body strength were similar, as were changes in the cross-sectional area of the elbow flexors, elbow extensors and vastus lateralis, and in lean body mass. The authors concluded that individuals can select a routine based on personal preference when volume is equated [1].
This is consistent with the broader frequency research: once weekly volume is matched, how often a muscle is trained has little independent effect on hypertrophy [2] [3].
What actually differs between splits
Limited evidenceSplits differ in session length, how many exercises you do per muscle per session, and how fatigue is distributed. Full-body sessions involve many muscles each time, so each muscle gets fewer sets per session but more sessions per week. Push/pull/legs concentrates more sets per muscle into fewer sessions per muscle, unless you run it twice a week.
Strength-focused lifters also gain practice: a full-body or upper/lower plan lets you squat or bench two or three times per week, and strength appears to benefit from more frequent practice [4].
Choosing and setting up a split
Full body suits two or three training days, beginners learning lifts and anyone with an unpredictable schedule — missing a day costs less. Upper/lower suits four days and balances frequency with session length. Push/pull/legs suits five or six days and lifters who like focused sessions; run once a week, it trains each muscle only once, so most lifters run it on a six-day rotation.
Whichever you choose, check the weekly volume per muscle against your target and keep per-session sets for one muscle at a manageable level, typically no more than about 6–8 hard sets.
The variable that decides results: adherence
Limited evidenceStudies equate volume because they control attendance. Real life does not. The split you can follow for months — through busy weeks, travel and fatigue — will outperform a theoretically better one that you keep abandoning.
If your week varies, full body is the most forgiving. If you enjoy longer focused sessions and train reliably, a split may keep you more motivated. Enjoyment is not a trivial factor; it is what makes consistency possible.
Common mistakes
- 1
Running push/pull/legs three days a week
Each muscle is then trained once per week, often with too many sets crammed into one session. Run it six days, or choose a different split.
- 2
Switching splits instead of fixing volume or effort
If progress stalls, check sets per muscle and how close to failure you train before changing the whole structure.
- 3
Overloading full-body sessions
Trying to do a full bodybuilding workout for every muscle three times a week produces sessions that are too long. Each session only needs a share of the weekly volume.
Practical takeaway
- 1Expect similar results from any split when weekly volume is matched.
- 2Choose the split that fits the number of days you can reliably train.
- 3Train each muscle at least twice per week where practical.
- 4Keep about 6–8 hard sets per muscle per session as an upper limit.
- 5Stay with a split long enough to track progress — at least 8–12 weeks.
Conclusion
There is no single best split. The evidence shows that full-body and split routines build strength and muscle at similar rates when the work is equal, which frees you to choose the structure that suits your life.
Get the weekly volume right, spread it sensibly, train hard and stay consistent. The template is just the container.
References
- [1]Ramos-Campo DJ, Benito-Peinado PJ, Andreu-Caravaca L, Rojo-Tirado MA, Rubio-Arias JÁ. Efficacy of Split Versus Full-Body Resistance Training on Strength and Muscle Growth: A Systematic Review With Meta-Analysis. Journal of Strength and Conditioning Research. 2024;38(7):1330–1340. Systematic review and meta-analysis doi.org/10.1519/JSC.0000000000004774
- [2]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. Journal of Sports Sciences. 2019;37(11):1286–1295. Systematic review and meta-analysis doi.org/10.1080/02640414.2018.1555906
- [3]Pelland JC, Remmert JF, Robinson ZP, Hinson SR, Zourdos MC. The Resistance Training Dose Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gains. Sports Medicine. 2026;56(2):481–505. Systematic review with meta-regressions (67 studies) doi.org/10.1007/s40279-025-02344-w
- [4]Grgic J, Schoenfeld BJ, Davies TB, Lazinica B, Krieger JW, Pedisic Z. Effect of Resistance Training Frequency on Gains in Muscular Strength: A Systematic Review and Meta-Analysis. Sports Medicine. 2018;48(5):1207–1220. Systematic review and meta-analysis doi.org/10.1007/s40279-018-0872-x
This guide summarises published research for healthy adults. It is general information, not medical advice — if you have a health condition, injury or take medication, talk to a qualified professional before changing your training, diet or supplements.
