4-Day Upper/Lower Split for Hypertrophy

A 4-day upper/lower split for hypertrophy is one of the most practical ways to build muscle when you can consistently train four times per week. Instead of training the entire body in each workout, the week is divided between two upper-body and two lower-body sessions.

Lifters whose work schedules determine how many training days they can consistently protect should first use Hypertrophy Programs for Shift Workers to choose a sustainable weekly framework, then apply this upper/lower split when four training opportunities are realistic.

A classic schedule looks like this:

Monday: Upper Body
Tuesday: Lower Body
Wednesday: Rest
Thursday: Upper Body
Friday: Lower Body
Saturday: Rest/Recovery
Sunday: Rest/Recovery

This arrangement gives every major muscle group two dedicated training opportunities per week while placing recovery days strategically around the sessions.

For intermediate lifters in particular, the upper/lower structure provides enough room to accumulate meaningful weekly volume without forcing huge numbers of exercises into individual workouts.

The result is a bodybuilding program that is simple enough to follow yet flexible enough to accommodate different muscle-building priorities.

Why a 4-Day Upper/Lower Split Works for Hypertrophy

The primary advantage of an upper/lower split is volume distribution.

Instead of performing all your weekly chest, back, shoulder, quadriceps, or hamstring work during a single workout, you divide it between two sessions.

Monday and Thursday train the upper body.

Tuesday and Friday train the lower body.

This naturally provides two weekly training exposures for each major muscle group while leaving several days between repeated sessions.

There is good research supporting the broader principle behind this approach.

A 2024 systematic review and meta-analysis, Efficacy of Split Versus Full-Body Resistance Training on Strength and Muscle Growth, analyzed 14 studies involving 392 participants. The researchers found that split and full-body routines produced similar improvements in muscle growth and strength when training volume was equated.

That finding is important when considering an upper/lower program. A split itself is not a magical hypertrophy mechanism. Its value comes from providing a practical framework for organizing enough high-quality training across the week.

A separate frequency meta-analysis also found that when weekly volume is equated, training frequency by itself does not appear to meaningfully change hypertrophy. Frequency can therefore be viewed largely as a tool for distributing productive volume.

That is exactly what an upper/lower split does well.

The Ideal 4-Day Upper/Lower Weekly Schedule

For most lifters, this is the simplest arrangement:

Monday — Upper A

Train the chest, back, shoulders, biceps, and triceps.

Tuesday — Lower A

Train the quadriceps, hamstrings, glutes, and calves.

Wednesday — Rest

No resistance-training session is required.

Thursday — Upper B

Train the upper body again, preferably using some different exercises or loading patterns.

Friday — Lower B

Complete the second lower-body workout.

Saturday and Sunday — Rest or Recovery

The weekend creates a useful recovery period before beginning another training week.

This schedule is particularly convenient because it fits neatly into a conventional Monday-to-Friday workweek while leaving the weekend free.

It also prevents four consecutive training days. You train twice, rest, train twice, and then recover before repeating the cycle.

Upper A: Build Around Your Primary Presses and Pulls

The first upper-body workout can emphasize heavier compound movements while still providing direct hypertrophy work.

A practical Upper A session could be:

Barbell Bench Press — 3 sets × 6–10 reps

Chest-Supported Row — 3 sets × 6–10 reps

Incline Dumbbell Press — 3 sets × 8–12 reps

Lat Pulldown — 3 sets × 8–12 reps

Lateral Raise — 3 sets × 12–20 reps

Biceps Curl — 2 sets × 10–15 reps

Triceps Extension — 2 sets × 10–15 reps

The session begins with horizontal pressing and rowing, allowing the lifter to prioritize chest and back performance while fresh.

The incline press adds another chest stimulus while increasing the contribution of the clavicular fibers of the pectoralis major and anterior deltoids.

Pulldowns provide a vertical pulling pattern, while lateral raises and direct arm exercises complete the session without requiring excessive additional compound work.

Lower A: Quadriceps-Focused Hypertrophy

The first lower-body workout can place greater emphasis on the quadriceps.

For example:

Back Squat — 3 sets × 6–10 reps

Leg Press — 3 sets × 10–15 reps

Romanian Deadlift — 3 sets × 8–12 reps

Leg Curl — 3 sets × 10–15 reps

Standing Calf Raise — 3 sets × 10–15 reps

This gives the quadriceps substantial work through squatting and leg pressing while still providing direct hamstring training.

The goal is not to eliminate posterior-chain work simply because the workout has a quadriceps emphasis. Instead, emphasis determines which muscles and exercises receive priority.

Upper B: Change the Stimulus Without Changing the Goal

Thursday’s upper-body workout does not need to repeat Monday exactly.

Exercise variation can allow you to train the same muscles through somewhat different movement patterns.

An Upper B session might include:

Pull-Up or Pulldown — 3 sets × 6–10 reps

Incline Machine Press — 3 sets × 8–12 reps

Seated Cable Row — 3 sets × 8–12 reps

Machine Chest Press — 2 sets × 10–15 reps

Lateral Raise — 3 sets × 12–20 reps

Preacher Curl — 2 sets × 10–15 reps

Overhead Triceps Extension — 2 sets × 10–15 reps

This time the workout begins with vertical pulling rather than pressing.

The point is not exercise novelty for its own sake. Your exercises should remain stable long enough to measure progression.

Variation is useful when it helps cover different movement patterns, improves comfort, or allows you to emphasize particular muscles across the two weekly sessions.

Lower B: Posterior-Chain Emphasis

Friday can shift more attention toward the hamstrings and glutes while continuing to train the quadriceps.

For example:

Romanian Deadlift — 3 sets × 6–10 reps

Hack Squat — 3 sets × 8–12 reps

Seated or Lying Leg Curl — 3 sets × 10–15 reps

Leg Extension — 2 sets × 12–15 reps

Seated Calf Raise — 3 sets × 10–20 reps

Now the hip hinge takes priority.

This A/B structure prevents the lower-body sessions from becoming simple copies of each other and allows the program to cover knee extension, hip extension, and knee flexion effectively.

How Many Weekly Sets Should You Perform?

The four-day upper/lower format makes weekly set distribution easy because each muscle receives two dedicated opportunities.

You might begin around the following general ranges:

Chest: 10–14 weekly sets
Back: 12–16 weekly sets
Quadriceps: 10–14 weekly sets
Hamstrings: 8–12 weekly sets
Side delts: 6–12 direct weekly sets
Biceps: 4–8 direct weekly sets
Triceps: 4–8 direct weekly sets
Calves: 6–10 weekly sets

These are programming starting points rather than mandatory targets.

Compound exercises also contribute work to multiple muscles. Bench pressing trains the triceps and anterior deltoids in addition to the chest, while rows and pulldowns involve the elbow flexors.

Therefore, direct arm volume does not need to match chest or back volume set for set.

More importantly, do not automatically increase sets simply because the schedule provides four training days.

Start with enough volume to progress and add work only when there is a reason.

How Long Should Upper/Lower Workouts Take?

Most upper/lower hypertrophy sessions can be completed in approximately 60–90 minutes, depending on exercise count, rest periods, equipment availability, and individual training volume.

Upper sessions sometimes run slightly longer because several major muscle groups must be covered.

Lower workouts may contain fewer exercises but can still be demanding because squats, hinges, and leg presses require substantial effort.

Avoid reducing rest periods so aggressively that performance deteriorates.

Your goal is not simply to finish quickly. Your goal is to accumulate productive hypertrophy training while maintaining sufficient performance across the workout.

How to Progress on a 4-Day Upper/Lower Split

The program should become more challenging as your performance improves.

One straightforward approach is rep-range progression.

Suppose your hack squat prescription is:

3 sets × 8–12 reps

You might begin with:

10 reps
9 reps
8 reps

Keep the load consistent and attempt to accumulate additional repetitions over subsequent sessions.

Eventually you may achieve:

12 reps
12 reps
12 reps

Increase the resistance slightly and begin progressing through the range again.

The same principle can be applied to presses, rows, pulldowns, curls, extensions, and most machine exercises.

You do not need to add weight every week.

Progress can occur through additional repetitions, increased load, better execution, greater range of motion, or maintaining performance with more demanding technique.

Record your workouts so that progression is intentional rather than based on memory.

Should Upper A and Upper B Use Different Exercises?

They can, but they do not have to.

A useful compromise is to maintain some consistent exercises while varying others.

For example, you might bench press every Monday for several months because you want to progress that movement. Thursday could use an incline machine press instead.

Similarly, Monday could feature chest-supported rows while Thursday uses seated cable rows.

Lower-body sessions can follow the same principle.

The objective is to provide enough consistency to measure progress without forcing every muscle to be trained identically twice each week.

Frequent random exercise changes make progression difficult to evaluate.

Choose exercises deliberately and keep them long enough to determine whether they are working.

Advantages of a 4-Day Upper/Lower Split

The first major advantage is predictable twice-weekly muscle exposure.

Every upper-body muscle has Monday and Thursday, while the lower body has Tuesday and Friday.

Second, specialization is straightforward.

If your back needs additional development, you can increase back volume across Upper A and Upper B without restructuring the entire program.

Third, fatigue is compartmentalized.

A hard lower-body workout does not require you to perform chest, back, shoulder, and arm exercises afterward. Those muscles have their own sessions.

Fourth, the schedule provides three non-lifting days every week.

Finally, progression is easy to monitor because the program has a stable repeating structure.

Disadvantages of Upper/Lower Training

The biggest limitation is commitment to four weekly sessions.

If you routinely miss one workout, the elegant twice-weekly structure begins to break down.

Upper-body sessions can also become crowded. Chest, back, shoulders, biceps, and triceps all need attention, so poor exercise selection can produce unnecessarily long workouts.

Lower sessions can be physically demanding when too many heavy compound exercises are combined.

Another potential problem is excessive volume.

Because each muscle receives two dedicated sessions, lifters may assume they need large amounts of work in both. Ten hard chest sets on Monday plus another ten Thursday is not automatically superior to a more moderate distribution.

Quality, progression, and recoverability still matter.

Who Should Use a 4-Day Upper/Lower Split?

This structure is particularly well suited to intermediate lifters who can reliably train four days per week.

It also works well for experienced beginners transitioning away from simpler routines and advanced trainees who want a straightforward base they can modify around individual priorities.

It is less suitable for someone who can only guarantee two or three weekly training opportunities.

The key word is reliably.

A four-day program is only superior to a lower-frequency schedule when you can actually perform the four sessions consistently.

For lifters who have four dependable training opportunities, however, upper/lower training provides an excellent combination of frequency, manageable session volume, exercise variety, and recovery.

Frequently Asked Questions

Is a 4-day upper/lower split good for hypertrophy?

Yes. It allows each major muscle group to be trained twice per week while distributing weekly sets across separate sessions.

What days should I use for an upper/lower split?

A highly practical schedule is Monday Upper, Tuesday Lower, Wednesday Rest, Thursday Upper, Friday Lower, followed by weekend recovery.

Should both upper workouts be identical?

No. They can share some exercises while using different movements for others. The important consideration is maintaining enough consistency to track progression.

Should both lower days train quads and hamstrings?

Generally, yes. One session can emphasize the quadriceps and the other the posterior chain while still training both regions across the week.

Can intermediate lifters build muscle with upper/lower training?

Absolutely. Intermediate lifters are particularly well suited to this structure because it provides sufficient room for weekly volume without requiring very high training frequency.

Final Takeaway

The 4-day upper/lower split for hypertrophy is effective because it turns four weekly training opportunities into a simple, repeatable muscle-building structure:

Monday — Upper
Tuesday — Lower
Wednesday — Rest
Thursday — Upper
Friday — Lower
Weekend — Rest and recovery

Each major muscle group receives two dedicated weekly sessions, weekly sets can be distributed rather than concentrated into one workout, and the A/B structure allows complementary exercises without unnecessary complexity.

The split is not inherently more anabolic than every other training structure. Current evidence indicates that split and full-body routines can produce similar hypertrophy when training volume is equated.

Its real strength is organization.

For lifters who can consistently train four times per week, an upper/lower program provides enough frequency and volume to support hypertrophy while preserving three non-lifting days for recovery.

Choose productive exercises, keep your weekly volume recoverable, record your performance, progressively improve your lifts, and allow the structure to do what it does best: turn four consistent weekly workouts into a sustainable long-term hypertrophy program.