Workout Routine to Build Muscle: The 4 Day Hypertrophy Plan
Four sessions a week, every muscle trained twice, 10–20 hard sets per muscle group. Here is the full plan with exercises, sets and reps — plus the volume and nutrition rules that decide whether it actually grows anything.
The week at a glance
| Day | Focus | Main lifts |
|---|---|---|
| Mon | Upper A | Barbell bench press · Barbell row · Overhead press · Lat pulldown |
| Tue | Lower A | Back squat · Romanian deadlift · Leg press · Standing calf raise |
| Wed | Rest | Walk, stretch, sleep. No lifting. |
| Thu | Upper B | Incline dumbbell press · Pull-up · Lateral raise · Curl & triceps |
| Fri | Lower B | Front squat · Hip thrust · Leg curl · Seated calf raise |
| Sat | Rest or light cardio | Optional 20–30 min easy walk |
| Sun | Rest | Eat, sleep, plan next week's weights. |
Compounds: 3–4 sets of 6–10 reps. Isolation and arms: 3 sets of 12–20 reps. Take the last set of each exercise to 1–2 reps short of failure. Rest 2–3 minutes on compounds, 60–90 seconds on isolation work.
What actually makes muscle grow
Muscle growth comes down to three things: enough hard sets, training each muscle often enough, and adding stimulus over time. The exact split matters far less than people think — a four-day upper and lower routine and a six-day push, pull, legs routine will produce similar results if weekly volume and effort match. What does not work is the classic one-muscle-per-day bro split for anyone training fewer than six days a week, because it hits each muscle only once every seven days. Protein synthesis after a session stays elevated for roughly 48 hours, so a muscle trained once a week is idle for five of them. This plan trains each group twice — that is the entire reason it is organised as upper and lower rather than chest day and back day.
How much volume you need
Aim for roughly 10 to 20 hard sets per muscle group per week. Count only working sets taken within about two reps of failure — warm-up sets and the first easy set of an exercise do not count. Beginners grow well at the bottom of that range, around 10 sets, and intermediates need closer to 15–20. Going beyond 20 sets rarely adds growth and almost always costs you recovery, which shows up as stalled lifts and aching joints rather than as soreness you can feel proud of. If you are unsure, start at 10 sets per muscle per week, hold it for four weeks, and add two sets only if your main lifts stop moving and you are sleeping well.
Day by day
Monday — Upper A
Flat barbell bench press (4×6–10), barbell row (4×6–10), standing overhead press (3×6–10), lat pulldown (3×8–12), then a lateral raise and one arm movement to finish. Horizontal pressing and horizontal rowing on the same day is deliberate: it keeps the shoulder joint balanced and stops the front of your body from outgrowing the back.
Tuesday — Lower A
Back squat (4×6–10), Romanian deadlift (3×8–10), leg press (3×10–15), standing calf raise (4×10–15). Squat and hinge on the same day is the most demanding pairing in the plan, so keep one of them at a solid working weight rather than trying to beat a personal best on both in the same session.
Thursday — Upper B
Incline dumbbell press (3×8–12), pull-ups or weighted pull-ups (4×6–10), lateral raise (4×12–20), then biceps and triceps superset to finish. The incline angle hits the upper chest that flat pressing under-trains, and vertical pulling adds width that rows alone will not build.
Friday — Lower B
Front squat (4×6–10), hip thrust (3×8–12), leg curl (3×10–15), seated calf raise (4×12–20). The second lower day is hip-dominant to give your lower back a break from back squats, while still loading the quads and glutes hard. Hamstring work with the knees bent is what keeps the joint balanced against all that squatting.
Progression: the part most plans skip
Use double progression on every lift. Stay at the same weight until you hit the top of the rep range on all working sets, then add the smallest increment available and drop back to the bottom of the range. On a 3×8–12 isolation movement without loading options, add a set or slow the lowering phase instead. Write every set down — not just the weight, but the reps you actually completed. If you cannot beat last week's numbers on a lift for two sessions in a row, that is a recovery signal rather than a programming problem: check sleep first, then calories, then cut one or two sets rather than adding more.
Eating for muscle
Training provides the signal; food provides the material. Keep protein at 1.6–2.2 g per kg of body weight, spread across three or four meals, and put 300–500 calories of mostly carbohydrate around your training days. If you are lean and want the fastest progress, a small surplus of 200–300 calories a day — enough to gain roughly 0.25–0.5% of body weight per week — puts muscle on with minimal fat. Beginners and anyone carrying more body fat can build muscle at maintenance calories for the first several months. Without enough protein or enough total calories, a perfectly programmed routine stops producing results, and that is the first thing to check when progress stalls.
Frequently asked questions
What is a good workout routine to build muscle?
One that trains each muscle twice a week with 10–20 hard sets, uses compound lifts as the base, and adds weight or reps over time — for example this four-day upper and lower split.
How many days a week should I train to build muscle?
Three to four days is enough for most people if weekly volume and effort are high. Four days with upper and lower repeated twice is the most efficient structure.
How many sets per muscle group per week do I need?
Roughly 10 to 20 hard sets. Beginners do well near 10, intermediates near 15–20; more than that rarely adds growth and costs recovery.
Can I build muscle without eating in a surplus?
Beginners and people with higher body fat often can, at maintenance. Once lean and trained, a small 200–300 calorie surplus makes it noticeably faster.
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