Short answer: Both train each muscle twice a week on six days. PPL is simpler and easier to adjust; the Arnold split pairs opposing muscles and tends to produce longer chest-and-back and shoulders-and-arms sessions, so it suits experienced lifters who recover well.

Arnold Split vs Push Pull Legs in brief

The Arnold split and PPL both ask you to train six days a week and both hit every muscle twice. The difference lies in how muscles are grouped on each day.

The Arnold split pairs antagonist muscles — chest with back, shoulders with arms — while PPL separates pushing and pulling. That changes how fatigue builds and how long sessions run.

Arnold Split vs Push Pull Legs at a glance

Arnold SplitPush Pull Legs
Best-fit days per week66 (3 or 5 possible)
Day structureChest & back / shoulders & arms / legsPush / pull / legs
Muscle frequency2× a week2× a week
Session lengthOften 70–90 minutes on chest & back daysAbout 45–70 minutes
Beginner friendlinessLowModerate
Hypertrophy (muscle gain)Excellent for experienced liftersExcellent for intermediate and up
StrengthModerate — high volume can limit heavy workGood
Recovery demandVery highHigh
Ease of adjusting volumeHarder — long sessionsEasier — shorter sessions
Ideal lifterAdvanced, recovers well, likes high volumeIntermediate to advanced with 6 free days

Key differences explained

How the days are built

Arnold chest-and-back days combine two big muscle groups, so they involve many sets and can be long. PPL separates the movement patterns, so each session is shorter but the triceps and front delts are involved in more than one push session.

Fatigue

Pairing antagonists means you can alternate chest and back sets while one muscle rests, which can be time efficient. The cost is a high total workload per session, so the Arnold split suits lifters who handle volume well.

Adjusting the plan

PPL is easier to trim: dropping accessory work from a push day costs little. Cutting a chest-and-back day short removes work from two large muscles at once.

Recovery

Both leave one rest day. Whichever you choose, a lighter week every several weeks helps keep fatigue manageable.

Which should you choose?

If…Better fitWhy
You are an advanced lifter who loves volumeArnold SplitAntagonist pairing and high weekly volume.
You want shorter sessionsPush Pull LegsEach day covers fewer muscles.
You are moving up from 4–5 daysPush Pull LegsSimpler to run and adjust.
Your recovery is averagePush Pull LegsLower per-session workload and easier to dial back.
You are a beginnerNeitherTry full body or upper/lower first.
Load Arnold Split in the planner → Load Push Pull Legs in the planner →

FAQ

Is the Arnold split better than PPL?

Not inherently. It is more demanding per session, which suits some experienced lifters. PPL is easier to run for most people.

Do I need to train six days either way?

No. Both can be run for three days by cycling once through the week, though each muscle is then trained once.

Which is better for strength?

PPL usually works better because sessions are shorter and you can keep the main lifts heavy; the Arnold split is more volume-oriented.

Read the full guides

Get the full details on each option: the Arnold Split guide and the Push Pull Legs guide. You can also compare every option on the workout splits hub or see how to choose the best workout split.