Build Muscle
Classic Bro Split — Five Day
5-day single-muscle-per-day split (Mon Chest / Tue Back / Wed Shoulders / Thu Legs / Fri Arms). 6 weeks: 3 accumulation, 2 intensification, 1 deload. Commercial gym. Honest about the trade-off — 1× / wk frequency is suboptimal vs 2× per Schoenfeld 2016, but commercially demanded.
- Category
- Build Muscle
- Length
- 6 weeks
- Frequency
- 5 days/week
- Est. session
- 50–70 min
Last updated: June 2026
About this program
The classic bodybuilding split — one muscle group per session, five sessions per week, weekend off. Up-front: per our Training Frequency framework (Schoenfeld 2016 meta), 2× / wk per muscle produces ~5% more growth than 1× at matched volume. This program is the lower- frequency option, included because the structure is commercially demanded and the bodybuilding tradition is real. If your primary goal is maximum growth, run PPL High Volume or Upper / Lower Workhorse instead. If you prefer the focused single-muscle feel — this is the program.
Designed for intermediate trainees who can train 5×/week and want per-muscle focus. Indirect frequency from compound movements partially compensates for the 1× direct frequency: triceps get hit on chest and shoulder days; biceps on back day; rear delts on back day. So effective frequency is closer to 1.5× for arms and shoulders even though it's 1× direct. Equipment: commercial gym (cable and machine variety drive the per-day exercise selection — bro split doesn't translate well to home setups).
Volume targets follow our Volume Management framework: each muscle's weekly volume (16-22 sets) is delivered in a single session, near MRV. Per-session ceiling concerns (Hakkinen 1988: 8-10 hard sets per muscle before set quality drops) are mitigated via the structure: 4-6 hard sets on the primary movement, then 3-4 sets each on isolation movements at descending intensity zones. Stretch-bias picks per Pedrosa et al. (2023): incline DB > flat bench, incline curl > preacher, overhead triceps > kickback.
Across 6 weeks expect 3-5 lb on the main lifts and visible metabolite-driven hypertrophy. Run this once or twice for variety, then transition back to a 2×-frequency split for primary muscle goals.
Build Muscle · 6 weeks · 5 days/week
Start to finish
- Frequency
- 5 days/week
- Per session
- 50–70 min
Who it's for
Four ways to tell at a glance whether this block belongs in your week.
- 01The goal
- 5-day single-muscle-per-day split (Mon Chest / Tue Back / Wed Shoulders / Thu Legs / Fri Arms).
- 02The commitment
- A high-frequency week, most days in the gym
- 03The arc
- 6 weeks, 3 phases that build and reset
- 04The coaching
- Your coach drives the plan forward — it reads each session and moves you up the moment the work gets easier, so you keep progressing
How it progresses
6 weeks across 3 phases — your coach watches the effort in your logged sets and moves the weight up the moment a load starts getting easier, so you keep climbing instead of waiting on the calendar.
- Weeks 1–362Intensity
Phase 1 · Accumulation
Accumulation
Build per-session volume tolerance. Working RPE 7.5-8 on compounds, 8-9 on isolations. Volume ramps from MEV to MAV.
- Weeks 4–582Intensity
Phase 2 · Intensification
Intensification
Heavier loads, slightly fewer reps on compounds. RPE 8-8.5 across. Volume holds at MRV for the trained muscle.
- Weeks 6–630Intensity
Phase 3 · Deload
Deload
Volume cut in half. Same intensity floor. Recovery before next cycle.
Sessions in this program
The individual workouts this program schedules through the week — open any session for its full exercise list, sets, and coaching notes.
Why your coach builds it this way
The classic bodybuilding split — one muscle group per session, five sessions per week, weekend off. Up-front: per our Training Frequency framework (Schoenfeld 2016 meta), 2× / wk per muscle produces ~5% more growth than 1× at matched volume. This program is the lower- frequency option, included because the structure is commercially demanded and the bodybuilding tradition is real. If your primary goal is maximum growth, run PPL High Volume or Upper / Lower Workhorse instead. If you prefer the focused single-muscle feel — this is the program.
Designed for intermediate trainees who can train 5×/week and want per-muscle focus. Indirect frequency from compound movements partially compensates for the 1× direct frequency: triceps get hit on chest and shoulder days; biceps on back day; rear delts on back day. So effective frequency is closer to 1.5× for arms and shoulders even though it's 1× direct. Equipment: commercial gym (cable and machine variety drive the per-day exercise selection — bro split doesn't translate well to home setups).
Volume targets follow our Volume Management framework: each muscle's weekly volume (16-22 sets) is delivered in a single session, near MRV. Per-session ceiling concerns (Hakkinen 1988: 8-10 hard sets per muscle before set quality drops) are mitigated via the structure: 4-6 hard sets on the primary movement, then 3-4 sets each on isolation movements at descending intensity zones. Stretch-bias picks per Pedrosa et al. (2023): incline DB > flat bench, incline curl > preacher, overhead triceps > kickback.
Across 6 weeks expect 3-5 lb on the main lifts and visible metabolite-driven hypertrophy. Run this once or twice for variety, then transition back to a 2×-frequency split for primary muscle goals.
Common questions
The facts most people check before they commit a block to it.
01How long is the Classic Bro Split — Five Day program?
Classic Bro Split — Five Day runs 6 weeks at 5 days a week, structured into 3 phases so the load builds and resets on schedule. In Squatly, the coach tunes it to you, so the plan keeps moving with your training.
02Who is Classic Bro Split — Five Day for?
5-day single-muscle-per-day split (Mon Chest / Tue Back / Wed Shoulders / Thu Legs / Fri Arms). It sits in the Build Muscle category, and the coach reads your training to tell you whether it's the right fit before you commit a block to it.
03How does Classic Bro Split — Five Day progress over the weeks?
It opens with accumulation and finishes with deload. Each phase has a job — accumulate work, push intensity, or back off to absorb it — and the coach moves your load when your logged sets earn it, not on a fixed schedule.
04Does the coach adjust Classic Bro Split — Five Day to me?
Yes. The program is the starting structure; the coach reads your e1RM trend, your weekly volume, and your effort on each lift, then tells you when to push — when a load is getting easier, it's time to add weight. It shows you the trend lines behind every call, and you accept, edit, or reject it. With every workout, the plan gets more yours.
Keep moving forward.
The program sets the structure. Your coach drives it forward — reading your numbers and pushing the weight up as you get stronger, so the plan stays yours and you keep progressing.
iOS · Works offline
Aleks · Coach
Proposal — add weight