Arnold Schwarzenegger’s Mammoth Chest and Back Workout

Arnold Schwarzenegger’s chest and back workout paired two opposing muscle groups in a high-volume, high-frequency session. The routine emphasizes heavy compound lifts, pyramid sets, pull-ups, rows, and progressively increasing resistance, while also warning that its original intensity may be demanding for many trainees.

Arnold’s Chest Training Principles

Arnold placed chest first in the workout so he could train it while fatigue was lower. He used basic, multi-joint lifts, including the barbell bench press, and valued progressive overload as a key part of building his chest.

His strength background influenced his approach. The workout described includes notable bench-press achievements such as a 500-pound single, 405 pounds for eight repetitions, and 225 pounds for 60 repetitions. He also varied grip width, used both barbells and dumbbells, and included exercises intended to challenge the chest from different angles.

How Arnold Trained Chest

• Train chest early: He prioritized the muscle group at the start of the session.
• Use heavy basics: Barbell pressing formed the foundation of his chest routine.
• Progress resistance: He increased weight over time rather than relying only on additional repetitions.
• Vary grip and exercises: Small changes in grip or exercise selection helped shift the emphasis.
• Use controlled ranges: He lowered dumbbells deeper for a greater stretch while protecting the shoulder joint.
• Focus on the contraction: He emphasized consciously flexing the chest, particularly at the top of each movement.

Arnold commonly began with warm-up sets, then increased the weight while reducing repetitions. The routine moves from about 12 repetitions toward six or four, creating a pyramid-style progression.

Arnold’s Back Training Principles

Arnold’s back work included more than the lats. He trained the middle and lower traps, rhomboids, upper and lower portions of the lats, erectors, and rear delts through a combination of vertical pulls and rows.

Pulling for Width and Thickness

Pull-ups, chin-ups, and lat pull-downs supported width through the lats, while rows and bent-over movements targeted the middle back and overall thickness. He varied grip width and used both bodyweight and added resistance.

Arnold favored wide-grip pull-ups for the upper lats because the elbows moved farther from the body. Close-grip and reverse-grip exercises brought the elbows closer to the sides and placed greater emphasis on different portions of the lats.

Instead of prescribing a fixed number of sets, he sometimes worked toward a total repetition target for chin-ups. As he became stronger, he added resistance rather than simply increasing repetitions. Trainees who could not yet perform bodyweight pull-ups could begin with a pull-down machine and move toward the chin-up bar after building sufficient strength.

Rows also progressed toward heavier loads. Arnold favored seated cable rows, T-bar rows, and bent-over barbell rows, using more repetitions in earlier sets and fewer as resistance increased. Between sets, he stretched the lats and also contracted them deliberately.

The Mammoth Chest and Back Workout

The following sequence reproduces the high-volume structure described in Arnold’s training. It uses sets of relatively lower repetitions for heavy pressing and rows, plus higher-repetition work for chest isolation and pulling movements.

Chest

1. Barbell Bench Press — Medium Grip: 2 warm-up sets of 15 repetitions, followed by 5 sets of 12, 10, 8, 6, and 4 repetitions.
2. Barbell Incline Bench Press — Medium Grip: 5 sets of 12, 10, 8, 6, and 4 repetitions.
3. Dumbbell Flyes: 4 sets of 12, 10, 8, and 6 repetitions.
4. Chest Dips: 4 sets of 12, 10, 8, and 6 repetitions.
5. Bent-Arm Dumbbell Pull-Over: 4 sets of 15 repetitions.

Back

1. Pull-Up: 5 sets of 15, 12, 10, 8, and 8 repetitions.
2. Chin-Up: 5 sets of 15, 12, 10, 8, and 8 repetitions.
3. T-Bar Row: 4 sets of 15, 12, 8, and 6 repetitions.
4. Bent-Over Barbell Row: 4 sets of 12, 10, 8, and 8 repetitions.
5. Seated Cable Rows: 4 sets of 12, 12, 10, and 10 repetitions.

Training, Recovery, and Practical Adjustments

Arnold’s competitive routine involved training chest three times per week, with at least 48 hours between sessions. He also used large training volumes, including up to 26 working sets on a high-volume day, and sometimes added evening leg training.

That level of work was suited to a dedicated competitive phase, but it may be too demanding for someone with a full-time job. High-volume or high-frequency training is better approached in shorter cycles, with attention to fatigue and signs of overtraining. Alternating heavier and lighter days can provide different training intensities while allowing more recovery.

The workout’s main tools—barbells, dumbbells, machines, cables, body weight, and rows—offer flexibility, but the loads and repetitions should be adapted to the trainee’s experience and recovery. Its central principle is to challenge the chest and back thoroughly while managing workload over time.