The argument over push pull legs versus upper lower has consumed more lifting forum threads than any other topic outside of bicep curl form. Both splits are well-supported by the hypertrophy literature, both have produced strong intermediate and advanced lifters, and both fail in predictable ways when applied to the wrong training week. The answer is not which split is theoretically superior. The answer is which split fits the number of days a lifter can reliably train, the type of stimulus they respond to, and the recovery they actually get between sessions.
The two splits also serve slightly different goals. PPL is built around volume per muscle group, with each push, pull, or leg day delivering 15 to 25 working sets across the targeted muscles. Upper lower is built around frequency per muscle group, with each upper or lower day delivering 10 to 15 sets that get repeated twice a week. Hypertrophy responds to both volume and frequency, and the modern training literature suggests 10 to 20 sets per muscle group per week is a productive zone for most intermediates. The split that gets a given lifter into that zone consistently is the right one.
How PPL distributes work
A classic PPL week trains six days: push, pull, legs, push, pull, legs, with one rest day floating somewhere in the rotation. Each push day covers chest, shoulders, and triceps. Each pull day covers back and biceps. Each leg day covers quads, hamstrings, glutes, and calves. The lifter hits every muscle group twice per week, which lands inside the 2x weekly frequency window most hypertrophy research supports.
The strength of PPL is volume. A push day can easily fit 5 sets of bench, 4 sets of incline press, 3 sets of overhead press, 4 sets of lateral raises, and 4 sets of tricep work. That is 20 working sets for the upper push muscles in a single session. Repeat that twice a week and the lifter accumulates 40 sets of upper push volume, which is at the high end of productive volume for most intermediates.
The weakness of PPL shows up when the lifter cannot commit to six training days. A 5-day PPL forces an awkward rotation (push, pull, legs, push, pull, off, off, then legs starts the next week), and a 4-day PPL drops each muscle group to roughly once every 7 to 9 days, below the frequency threshold for hypertrophy efficiency. PPL is at its best when six training days are realistic and the rest of life (sleep, food, stress) can support that frequency.
How upper lower distributes work
A classic upper lower week trains four days: upper, lower, rest, upper, lower, rest, rest. Each upper day covers chest, back, shoulders, biceps, and triceps. Each lower day covers quads, hamstrings, glutes, and calves. Every muscle group is hit twice a week, the same frequency as a 6-day PPL, but each session is more crowded.
The strength of upper lower is frequency on fewer days. A lifter who can only train four times a week still gets two exposures per muscle group. The mechanical compromise is that no single muscle gets the 15 to 20 set hammering it would on a dedicated PPL day. Instead, each upper day delivers maybe 6 to 9 sets per upper muscle and each lower day delivers 8 to 12 sets per lower muscle.
The weakness of upper lower shows up at higher experience levels. As a lifter advances, the volume needed to drive new growth in any one muscle starts to exceed what can fit into a shared upper or lower session. A 25-set chest week is hard to squeeze into two 8-set chest blocks alongside back, shoulders, and arms in the same session. PPL splits the day load so each muscle gets dedicated attention; upper lower batches the day load so each muscle shares time with other groups.
The day count question
The cleanest way to choose between PPL and upper lower is to count the training days a week is genuinely available, and then pick the split that fits.
Three days available: neither split is correct. Run a 3-day full body program with each compound hit 3 times a week. Hypertrophy frequency is preserved and the workload per session stays manageable.
Four days available: upper lower. Each muscle group gets 2x per week, sessions are 60 to 75 minutes, and recovery between sessions stays comfortable. PPL on 4 days drops frequency below the productive zone.
Five days available: an upper lower PPL hybrid (UL UL P P L) or a 5-day upper lower (UL UL U L) works. Straight PPL on 5 days creates an asymmetric rotation that gets confusing.
Six days available: PPL is in its element. Each muscle group gets 2x per week with high session volume and one rest day to anchor recovery. Upper lower on 6 days works too (UL UL UL) but feels redundant because sessions are shorter than the schedule allows.
Recovery realities
A 6-day PPL works in theory and fails for many lifters because recovery is not just session-to-session muscle recovery. It is also CNS load, sleep debt, joint inflammation, life stress, and food. Six consecutive training days with one rest day stacks fatigue in a way that four-day upper lower simply does not.
Lifters in their 20s with low life stress and good sleep can usually run 6-day PPL indefinitely. Lifters in their 30s and 40s, lifters with demanding jobs, and lifters returning from a long break tend to find that upper lower preserves more long-run progress. The set count is lower per session but the consistency over months is higher, and consistency drives hypertrophy more reliably than any optimal split design.
Strength versus hypertrophy goal
Upper lower has a structural advantage for pure strength work. Each session can lead with one heavy compound (squat or deadlift on lower, bench or overhead press on upper) followed by accessory work. The main lift gets 2x per week of focused attention, which is the frequency strength programs like 5/3/1 BBB and Greg Nuckols’ classic intermediate work are built around.
PPL has a structural advantage for high-volume hypertrophy. Each session can fit the 15+ sets per muscle group that drive growth in advanced lifters without compromising recovery, because the next session does not revisit those same muscles.
A simple decision: if the goal is to add weight to the squat, bench, deadlift, and overhead press, default to upper lower. If the goal is to add inches to the chest, back, and arms, default to PPL when six days are available and upper lower when four are.
A simple decision rule
Count the days. Match the split. If only four days are realistic, run upper lower. If six are realistic and recovery is solid, run PPL. If five are the answer, run a hybrid. Do not run a 4-day PPL just because the split sounds better on paper. The best split is the one that gets each muscle group hit twice a week and that the lifter actually completes for 12 weeks in a row.
For more on how training variables interact, see our methodology.
Frequently asked questions
Is PPL or upper lower better for hypertrophy?+
For a lifter training 4 days a week, upper lower beats a 4-day PPL because every muscle group gets hit twice. For a lifter training 6 days a week, classic PPL pulls ahead because total weekly volume increases and recovery still works. The split is downstream of the day count, not the other way around.
Can I run PPL on 4 days a week?+
Yes, but the rotation drifts. You might train push Monday, pull Wednesday, legs Friday, then push again Monday, and a given muscle gets hit every 7 to 9 days. That frequency is below the 2x per week target the hypertrophy literature points to. Upper lower 4 days hits each group exactly twice and is the cleaner pick at this day count.
Is upper lower good for strength training?+
Upper lower is a strong fit for strength because each session can prioritize one heavy compound (squat, bench, deadlift, overhead press) followed by lighter accessory work. The 2x weekly frequency on the main lift drives strength adaptation faster than the 1x frequency a 6-day PPL provides.
Should beginners run PPL or upper lower?+
Neither. True beginners belong on a 3-day full body program like Starting Strength or StrongLifts where each main lift is trained 3 times per week. PPL and upper lower start to make sense after roughly 6 to 12 months of consistent training, once recovery between full-body sessions becomes the bottleneck.
What is the best PPL or upper lower split for a busy schedule?+
If you have 3 fixed weekly slots, run a full body program (not PPL). If you have 4 fixed slots, run upper lower. If you have 5 to 6 slots and reliable recovery, run PPL or PPL Upper Lower hybrid. Pick the split that matches the days you will actually show up, not the days you wish you had.
