---

id: arnold_split
name: Arnold Split
aliases: [Arnold schwarzenegger split, golden era bodybuilding split, 6-day double split, chest back arms split]
category: program
system: bodybuilding
goal: Build dense, proportional muscle mass through high-frequency, high-volume training by pairing antagonist muscle groups (chest+back, shoulders+arms) on the same day for natural superset synergy, training each muscle group twice per week across a 6-day cycle
goals: [hypertrophy]
level: intermediate
duration_weeks: 12
frequency_per_week: 6
periodization: linear
origin: classic
progression_model: >
  Linear progression on compound movements: add 2.5 kg (upper body) or 5 kg (lower body)
  when all prescribed sets are completed at the top of the rep range with good form.
  For isolation exercises, use double-progression: advance within the rep range before
  adding load. Deload every 8 weeks: reduce total sets by 50% for one week, maintain
  loads, then return to full volume.

exercises:
  - ref: bench_press
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 4×6–10. Primary horizontal push. Arnold
      advocated full range of motion with controlled descent to maximize stretch at
      the bottom position. Paired with rowing for antagonist supersets.

  - ref: incline_dumbbell_press
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 3×8–12. Upper chest emphasis. Arnold
      consistently emphasized clavicular pec development; the 30° incline is the
      optimal angle for this fiber direction.

  - ref: dumbbell_flyes
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 3×10–15. Isolation stretch finisher for
      pectorals. Full range of motion; elbows at 120° (soft bend); Arnold treated flyes
      as the primary peak-contraction chest isolation.

  - ref: bent_over_barbell_row
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 4×6–10. Paired in superset with bench press;
      antagonist pairing allows the back to recover while chest presses and vice versa.
      45° torso angle; full scapular retraction at top.

  - ref: pullups
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 3×8–12. Wide grip for lat width emphasis.
      Arnold used a thumbless grip to reduce forearm engagement and maximize lat pull.
      Weighted once bodyweight reps exceed 12.

  - ref: seated_cable_rows
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Chest/Back Day (Monday and Thursday): 3×10–15. Mid-back thickness and rhomboid
      development. Close grip; allow full scapular protraction at start.

  - ref: overhead_press
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 4×6–10. Primary shoulder compound.
      Arnold press variant: start with palms facing in (like a hammer position), rotate
      to palms forward at top; increases range of deltoid activation through rotation.

  - ref: side_lateral_raise
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 4×10–15. Lateral deltoid isolation.
      Slight forward lean; lead with the elbow; stop at parallel. Arnold performed
      these with strict control, not swing momentum.

  - ref: front_dumbbell_raise
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 3×10–15. Anterior deltoid isolation.
      Alternating arm; maintain neutral wrist. Pairs with lateral raise for complete
      deltoid development — Arnold's era favored greater anterior delt volume than
      modern evidence-based programs.

  - ref: barbell_curl
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 4×6–10. Primary bicep compound.
      Elbows strictly anchored; no shoulder flexion; full supination at top.
      Arnold Arm Day: biceps and triceps trained together in heavy supersets.

  - ref: concentration_curls
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 3×10–15. Arnold's signature exercise
      for bicep peak development. Seated, elbow braced against inner thigh; full
      supination with a pause at the top. This was Arnold's preferred isolation finisher.

  - ref: triceps_pushdown
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 4×8–12. Superset with barbell curl.
      Straight bar or rope; full extension; lat engagement to prevent elbow flare.

  - ref: ez_bar_skullcrusher
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Shoulders/Arms Day (Tuesday and Friday): 3×8–12. Triceps long head emphasis.
      EZ-bar lowers to forehead; elbows fixed; full extension. Paired with overhead
      press to create complete triceps development.

  - ref: back_squat
    role: primary
    frequency_per_week: 2
    technical_notes: >
      Leg Day (Wednesday and Saturday): 4×8–12. Primary leg compound. Arnold squatted
      high-bar with a moderate stance width; full-depth squat at all times. Legs trained
      separately from upper body in the double-split format.

  - ref: leg_press
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Leg Day (Wednesday and Saturday): 3×10–15. Secondary quad and glute loading after
      squat. High foot placement for glute emphasis; moderate placement for quad emphasis.

  - ref: leg_extensions
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Leg Day (Wednesday and Saturday): 3×12–15. Quad isolation finisher. Full extension
      with 1-second hold; controlled descent.

  - ref: lying_leg_curls
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Leg Day (Wednesday and Saturday): 3×10–15. Hamstring isolation. Full range of
      motion; control the eccentric. Arnold era did not distinguish between seated and
      lying curl positioning; either variation is appropriate.

  - ref: standing_calf_raises
    role: secondary
    frequency_per_week: 2
    technical_notes: >
      Leg Day (Wednesday and Saturday): 4×15–20. Arnold's famous calves were developed
      through extremely high volume (100+ reps per session in peak phase). Full ROM:
      maximal dorsiflexion to maximal plantarflexion. Arnold trained calves without
      shoes when possible to maximize ROM.

sources:
  - title: "The New Encyclopedia of Modern Bodybuilding"
    author: "Schwarzenegger, A., Dobbins, B."
    year: 1999
    publisher: "Simon & Schuster"
    credibility: practitioner
  - title: "Effects of resistance training frequency on measures of muscle hypertrophy: A systematic review and meta-analysis"
    author: "Schoenfeld, B.J., Ogborn, D., Krieger, J.W."
    year: 2016
    journal: "Sports Medicine"
    volume: 46
    issue: 11
    pages: "1689-1697"
    doi: "10.1007/s40279-016-0543-8"
    credibility: meta_analysis
---

# Arnold Split

The Arnold Split reflects the training philosophy of Arnold Schwarzenegger's prime competitive years (1970–1975). The key insight is pairing antagonist muscle groups — chest with back, shoulders with arms — which allows natural superset organization: while the chest is being pressed, the back recovers; while the biceps are being curled, the triceps recover. This allows higher total volume per session without compromising quality, and the twice-per-week frequency for each muscle group aligns with modern evidence on optimal training frequency for hypertrophy.

## Who This Is For

- Intermediate trainees who have completed a full-body or upper-lower program and want to increase training frequency and volume
- Athletes interested in the Golden Era aesthetic: broad shoulders, full chest, narrow waist, and proportional development
- Those who can commit to 6 training days per week (the program does not function on 5 or fewer days)

## Weekly Schedule

| Day | Focus | Key Movement Pairing |
|-----|-------|---------------------|
| Monday | Chest + Back | Bench ↔ Row (antagonist superset) |
| Tuesday | Shoulders + Arms | Press ↔ Curl+Extension |
| Wednesday | Legs | Squat → Leg Press → Isolation |
| Thursday | Chest + Back | Same as Monday (heavier or varied) |
| Friday | Shoulders + Arms | Same as Tuesday (heavier or varied) |
| Saturday | Legs | Same as Wednesday |
| Sunday | Rest | — |

## Chest + Back Day (Monday and Thursday)

| Exercise | Sets × Reps | Pairing |
|----------|------------|---------|
| Bench Press | 4 × 6–10 | Superset A1 |
| Bent-over Row | 4 × 6–10 | Superset A2 |
| Incline Dumbbell Press | 3 × 8–12 | Superset B1 |
| Pull-ups | 3 × 8–12 | Superset B2 |
| Dumbbell Flyes | 3 × 10–15 | Superset C1 |
| Seated Cable Row | 3 × 10–15 | Superset C2 |

## Shoulders + Arms Day (Tuesday and Friday)

| Exercise | Sets × Reps | Pairing |
|----------|------------|---------|
| Overhead Press (Arnold Press) | 4 × 6–10 | — |
| Barbell Curl | 4 × 6–10 | Superset A1 |
| Triceps Pushdown | 4 × 8–12 | Superset A2 |
| Side Lateral Raise | 4 × 10–15 | — |
| EZ Bar Skull Crusher | 3 × 8–12 | Superset B1 |
| Dumbbell Concentration Curl | 3 × 10–15 | Superset B2 |
| Front Dumbbell Raise | 3 × 10–15 | — |

## Leg Day (Wednesday and Saturday)

| Exercise | Sets × Reps |
|----------|------------|
| Back Squat | 4 × 8–12 |
| Leg Press | 3 × 10–15 |
| Leg Extensions | 3 × 12–15 |
| Lying Leg Curl | 3 × 10–15 |
| Standing Calf Raise | 4 × 15–20 |

## Arnold's Training Principles

1. **Mind-muscle connection**: Visualize the target muscle contracting with each repetition; mental focus increases EMG activation of the intended muscle
2. **Full range of motion**: Partial reps shortchange the stretch-mediated hypertrophic stimulus; Arnold always insisted on full ROM
3. **Shock the muscle periodically**: Vary training order, angles, or loading scheme every 4–6 weeks to prevent accommodation
4. **Priority training**: Train weakest body parts first in the session when CNS freshness is maximal

## Progression

- **Compound lifts**: Linear load increase when all reps are achieved with good form
- **Isolation lifts**: Double-progression (advance within rep range, then add load)
- **Every 4 weeks**: Rotate one exercise per muscle group to introduce novel stimulus
- **Deload (Week 9)**: 50% volume for one week

> Related programs: `push_pull_legs` (less volume, same frequency concept), `phul` (power-hypertrophy hybrid). Related guides: `bodybuilding_intermediate_guide`.