bodyBot.aiSign in
Workout · Muscle Gain · Bro Split (One Muscle Per Day)

Bro Split for Muscle Gain

The bro split gets internet hate but it works — for the right lifter. If you're advanced, you love the gym, and you can tolerate 20+ sets per muscle per session, it delivers real growth. This is the honest version of the template.

Goal: Muscle GainYou are in a small surplus. The training builds the tissue your food supplies — nothing more, nothing less.

Split: Bro Split (One Muscle Per Day)Chest day, back day, legs day, shoulder day, arms day. Old-school bodybuilding — low frequency, high volume per muscle per session.

Frequency: 5 days/week · Session: ~60 min

Calories: 200–300 kcal surplus

Why this combo works

Once-a-week frequency underperforms twice-a-week frequency in beginners and early intermediates. But for advanced lifters running at max recoverable volume, the bro split concentrates that volume where you can actually apply it — one focused, high-effort session per muscle.

Weekly structure

Mon — Chest

Horizontal + incline pressing

  • Barbell bench 4×6–8 RIR 2
  • Incline DB press 4×8–10 RIR 2
  • Machine chest press 3×10 RIR 1
  • Cable fly 3×12–15 RIR 0
  • Push-up finisher 2×AMRAP

Tue — Back

Vertical + horizontal pull

  • Barbell row 4×6–8 RIR 2
  • Chin-up 4×AMRAP RIR 1
  • Lat pulldown 3×10 RIR 1
  • Seal row 3×10 RIR 1
  • Straight-arm pushdown 3×15 RIR 0

Wed — Legs

Squat + hinge + isolations

  • Back squat 4×6–8 RIR 2
  • Romanian deadlift 3×8 RIR 2
  • Leg press 3×10–12 RIR 1
  • Lying leg curl 4×10 RIR 1
  • Standing calf raise 4×12 RIR 0

Thu — Shoulders

Delts + rear-delt volume

  • Overhead press 4×6–8 RIR 2
  • Seated DB press 3×10 RIR 1
  • Cable lateral raise 4×12–15 RIR 0
  • Face pull 4×15 RIR 0
  • Rear-delt fly 3×15 RIR 0

Fri — Arms

Biceps + triceps volume

  • Barbell curl 4×8–10 RIR 1
  • Close-grip bench 3×8–10 RIR 2
  • Preacher curl 3×10 RIR 1
  • Overhead tricep 3×12 RIR 0
  • Cable curl 3×15 · Rope pushdown 3×15

Cardio

1–2 Z2 walks on the weekend for cardiovascular health. Sessions here are dense enough — don't add more.

Progression

Add 1 set to the target muscle each week for 5 weeks, then deload. Load progression on top sets throughout — 2.5 kg when you hit top of range.

Frequently asked questions

Isn't bro split obsolete?

For beginners and early intermediates, higher frequency wins. For advanced lifters with high recovery capacity, bro split concentrates volume productively — it's a tool, not a mistake.

How long should sessions take?

60 minutes of work. If arm day is taking 90 minutes, you're chatting between sets, not training.

Can I add cardio?

1–2 Z2 sessions is enough. The bro split already asks a lot from recovery — don't add HIIT or long runs.

Related

Get this plan auto-adjusted to you

bodyBot.ai adapts every set, rep and rest to your recovery, equipment and week-over-week progress. This template becomes your program — not a static PDF.

Create your free account