The Most Important Factor: How Many Days Can You Actually Train?
Before you look at PPL vs bro split vs upper/lower, the most important question is simple: how many days per week can you consistently get to the gym? Not how many days you'd like to — how many days you will, week after week, for months.
The best split in the world means nothing if you can only follow it 60% of the time. A 3-day full body split done consistently beats a 6-day PPL done sporadically every single time.
By Number of Days
2–3 Days Per Week: Full Body
If you can only train 2–3 times per week, a full body split is your best option. Each session trains every major muscle group, so even if you miss a day, nothing gets left behind for a full week. Full body training also has a high training frequency per muscle — each muscle gets trained 2–3 times per week rather than once.
Good for: beginners, people with unpredictable schedules, anyone returning to training after a break.
4 Days Per Week: Upper/Lower
Four days is the sweet spot for most intermediate trainees. An upper/lower split gives each muscle group twice-weekly frequency while providing enough volume per session to drive hypertrophy. Monday/Tuesday/Thursday/Friday is the classic setup.
Good for: intermediate lifters wanting muscle and strength simultaneously, people who want a structured program with clear recovery days.
5–6 Days Per Week: PPL or Bro Split
If you can train 5–6 days per week reliably, Push Pull Legs is one of the most effective options. The 6-day version trains each movement pattern twice per week with sufficient volume. The bro split (one muscle group per day) works at 5 days and offers high per-session volume for each body part.
Good for: experienced lifters who genuinely enjoy training frequently and recover well.
By Goal
Muscle Building (Hypertrophy)
For building muscle, training frequency and volume matter more than which specific split you follow. Any split that hits each muscle group 2 times per week with 10–20 weekly sets will produce hypertrophy. PPL, upper/lower, and full body all qualify. The bro split (once per week per muscle) can work but may be suboptimal for frequency.
Strength
For strength on compound lifts (squat, deadlift, bench, overhead press), practice frequency matters a lot. Squatting twice per week will build a stronger squat faster than squatting once. Upper/lower splits and full body programs naturally support this. Programs like StrongLifts 5x5 and PHUL are built around this principle.
General Fitness
If your goal is general health, looking good, and feeling capable, a 3-day full body program hits everything you need. Keep it simple, be consistent, and add conditioning work as desired.
By Experience Level
Beginner (0–1 year)
Start with a 3-day full body program. At this stage, you will make strength gains from any stimulus — full body training capitalizes on this by training each movement pattern frequently. You do not need split training yet. The basic compound movements (squat, hinge, push, pull) trained consistently will transform a beginner body.
Intermediate (1–3 years)
Move to upper/lower or a 4-day split. You now need more volume per session and per week to continue progressing. Twice-weekly frequency per muscle remains a solid standard.
Advanced (3+ years)
At this point you have enough training experience to choose based on what your body responds to. PPL, Arnold split, or specialized programs all have their place. Recovery management becomes increasingly important.
The Honest Truth About Splits
Most people overthink this. The research on optimal training frequency and volume shows diminishing returns beyond a certain point — the difference between a well-executed 3-day program and a well-executed 6-day program, for a natural lifter, is smaller than most people expect. Consistency, progressive overload, sleep, and nutrition matter more than which split you choose.
Pick a split you can stick to. Run it for at least 12 weeks before evaluating. Track your lifts. Eat enough. Sleep enough. The split is a framework — you provide the effort.
Prefer an answer tailored to you? Use the Workout Split Finder, compare every option on the workout splits hub, or read the best workout split guide.