Upper / Lower 4-Day Split
The time-efficient hypertrophy and strength split for people with 4 training days. Simple, sustainable, serious progress.
Overview
Six-day splits like Push/Pull/Legs produce fantastic gains if you have the time. Most people don't. A 4-day Upper/Lower split delivers 80% of the outcomes with 66% of the time commitment, is easier to recover from, and fits far more easily into a working life. It's arguably the best hypertrophy-plus-strength split for someone training 4 days per week.
This 12-week plan gives each muscle group two sessions of focused work per week — enough for significant hypertrophy and strength gains without the recovery demands of a 6-day plan. It's simple, repeatable, and rewards honest effort.
Golden Rule: Hitting each muscle group twice per week with genuine working sets beats hitting it once per week with maximum volume. Frequency × intensity, not just intensity.
Prerequisites
- 6-12 months consistent gym training
- Competent form on squat, bench press, deadlift, overhead press, pull-up, row
- Gym access with barbells, dumbbells, cable machine, pull-up bar
The 4-Day Split
Two upper-body sessions, two lower-body sessions, each week. Flexibility on days — pick four days that suit you.
| Day | Focus |
|---|---|
| Mon | Upper A — strength emphasis |
| Tue | Lower A — strength emphasis |
| Thu | Upper B — volume emphasis |
| Fri | Lower B — volume emphasis |
Two-day gap mid-week (Wed/Sat/Sun) for recovery.
Flexible version for people who can't always train Mon/Tue/Thu/Fri:
- Minimum 48 hours between Upper A and Upper B
- Minimum 48 hours between Lower A and Lower B
- Avoid Upper-Lower-Upper-Lower on consecutive days if possible — back-to-back days allowed occasionally
The Programme
Upper A — Strength Emphasis
| Exercise | Sets × Reps | Notes |
|---|---|---|
| Bench press | 4 × 5 | Main lift, progressive overload |
| Barbell row | 4 × 5 | Match bench volume |
| Overhead press | 3 × 6 | Secondary press |
| Weighted pull-up | 3 × 6 | Or lat pulldown if can't do weighted |
| Incline dumbbell press | 3 × 10 | Volume accessory |
| Barbell curl | 3 × 8 | Biceps direct work |
~60 minutes.
Lower A — Strength Emphasis
| Exercise | Sets × Reps | Notes |
|---|---|---|
| Back squat | 4 × 5 | Main lift |
| Romanian deadlift | 3 × 6 | Hamstring emphasis |
| Walking lunge | 3 × 10 each leg | Single-leg strength |
| Leg press | 3 × 10 | Volume work |
| Standing calf raise | 4 × 12 | Hit calves hard; they need it |
| Hanging leg raise | 3 × 12 | Core |
~60 minutes.
Upper B — Volume Emphasis
| Exercise | Sets × Reps | Notes |
|---|---|---|
| Incline bench press | 4 × 8 | Upper chest focus |
| Chest-supported row | 4 × 8 | Cleaner back isolation |
| Dumbbell shoulder press | 3 × 10 | Different press pattern |
| Pull-up (bodyweight) | 3 × AMRAP | As many reps as possible per set |
| Lateral raise | 4 × 15 | Side delts |
| Cable tricep extension | 3 × 12 | Triceps direct |
| Hammer curl | 3 × 12 | Biceps + forearm |
~65 minutes.
Lower B — Volume Emphasis
| Exercise | Sets × Reps | Notes |
|---|---|---|
| Deadlift | 3 × 5 | Big posterior-chain lift |
| Front squat | 3 × 8 | Quad-dominant variation |
| Bulgarian split squat | 3 × 10 each leg | Single-leg volume |
| Lying leg curl | 4 × 10 | Direct hamstring work |
| Seated calf raise | 4 × 15 | Different angle from standing |
| Ab wheel rollout | 3 × 10 | Core |
~65 minutes.
Progressive Overload
Log every working set. Every session, try to beat the previous session:
- Same weight, more reps — if you did 5 reps, aim for 6. Once you hit the top of the prescribed range, add weight.
- Same reps, more weight — add 2.5kg to main lifts when you hit the top end.
- Quality — even at same numbers, slower eccentric, fuller range, more control = progress.
Target progression rates (at ~year 1-2):
- Big compound lifts (squat, bench, deadlift, OHP): +5-10kg per month
- Accessory lifts: +2.5kg every 2-3 weeks
- Bodyweight movements (pull-ups): +1 rep per set every 2 weeks
4-Week Rhythm
Three weeks of progressive build. Week 4 is a deload:
- Same exercises
- 60-65% of working weight
- One fewer set per exercise
- Same reps
Don't skip deload. Your joints and CNS need it even if you feel you could push through.
Nutrition
For hypertrophy (add muscle):
- Calorie surplus of 200-400 kcal/day above maintenance
- Protein: 1.6-2.2g per kg bodyweight
For recomposition (add muscle, lose some fat — slower but achievable if relatively new to lifting):
- Maintenance calories or slight deficit (100-200 kcal under)
- Protein: 2.2g per kg bodyweight
For strength at current bodyweight:
- Maintenance calories
- Protein: 1.6g per kg bodyweight
Don't try to build muscle in a steep deficit — it doesn't work past the first few months of training.
Sleep & Recovery
| Lever | Target |
|---|---|
| Sleep | 7-9 hours consistently |
| Stress management | Active — walks, mindfulness, anything non-chemical |
| Alcohol | Minimal in training blocks (significant hypertrophy/strength suppressor) |
| Rest days | Keep mostly passive — long walks OK, hard cardio not |
12-Week Structure
Weeks 1-3: Build (as described) Week 4: Deload Weeks 5-7: Build, slight progression Week 8: Deload Weeks 9-11: Build, pushing for final PRs Week 12: Deload + testing if desired (work up to a heavy single on main lifts)
Measuring Progress
Every 4 weeks:
- Log numbers on main lifts — they should be trending up
- Waist circumference + arm + chest measurements
- Progress photos (same lighting, pose)
- Scale weight trend (weekly average, not daily)
Don't judge progress weekly. Muscle building is slow and steady.
Adjusting the Plan
Too time-pressed for 60-min sessions? Cut accessory sets (last 2 exercises on each day). Core stays the same.
Shoulders take a beating? Replace barbell OHP with dumbbell versions, lower volume by one set per session.
Lower back issues? Sub back squat for front squat; sub deadlift for trap-bar deadlift or Romanian deadlift.
Time off / injury? Don't restart heavy. Reduce loads 15-20% for one week, then progress.
When to Switch Plans
Upper/Lower is sustainable for 12-24 months of consistent training. Signs it's time to change:
- Main lifts have stalled for 6+ weeks even with deloads
- Motivation is flagging
- A specific weakness is dominating (e.g. upper back is lagging, you'd benefit from back-specific programming)
Rotation options:
- Push / Pull / Legs Hypertrophy for more volume
- Powerlifting Big-3 for strength peak
- Return to Upper/Lower after 12 weeks with a different emphasis (strength block vs hypertrophy block)
Common Mistakes
- Adding extra sessions. Four days is designed to balance stimulus with recovery. Adding a fifth "just a little" day compromises the other four.
- Not tracking. Without logs, progress happens by accident. Progress happens on purpose with logs.
- Max effort every session. Leave 1-2 reps in the tank on most sets. Last set of main lifts can be near-failure.
- Changing exercises every 2 weeks. Consistency over novelty. Pick your exercises, run them 12 weeks, adjust.
What's Next
After 12 weeks on Upper/Lower, you should have added muscle, strength, or both (depending on nutrition). Next block options:
- Another 12 weeks with slightly different exercise variations (e.g. sub incline bench for flat bench as main chest lift)
- PPL for higher volume if you have time for 6 days
- Powerlifting Big-3 for a strength peak
The 4-day split is the workhorse of most successful lifters. Don't chase novelty — run it, progress it, and watch compounding gains across years.