Arnold’s High-Volume Leg and Ab Training

Arnold’s Approach to Leg Development

Arnold Schwarzenegger trained his legs and abs three times each week, pairing them with chest and back sessions. His demanding workouts could reach 46 sets before calves and abs, reflecting the high-volume style that helped him balance his powerful upper body.

His legs were not naturally his strongest or largest feature. Because his long frame made overall leg mass harder to build, he used varied exercises, heavy loading, and intense work to improve their size and proportion.

What Made His Training Demanding

• High training frequency: Legs and abs appeared three times in his weekly split.
• Large set counts: High-volume sessions used 20–26 sets for thighs, while lower-volume sessions used 16–20.
• Exercise variety: He changed squat styles, machines, foot positions, and ranges of motion.
• Heavy and intense work: Squats and heavy calf exercises were central to his approach.
• High-repetition abs: He used several movements and often performed at least 25 repetitions per set.

The Weekly Training Split

Arnold’s routine separated the upper body from legs and abs on alternating days. This structure gave each major movement pattern dedicated training while allowing another body part to recover.

1. Day 1: Chest and back in the morning; legs and abs in the evening.
2. Day 2: Shoulders and arms in the morning; rest in the evening.
3. Day 3: Repeat chest and back, followed by legs and abs.
4. Day 4: Repeat shoulders and arms, followed by rest.
5. Day 5: Repeat chest and back, followed by legs and abs.
6. Day 6: Repeat shoulders and arms, followed by rest.
7. Day 7: Full rest.

Building Thighs and Hamstrings

Arnold began with one or two light sets of leg extensions before moving into squats. He favored the barbell squat as a mass-building movement, then added Smith machine squats and hack squats rather than relying on one exercise alone.

Different machines let him adjust stance and loading. A wider stance with turned-out toes shifted his emphasis toward the inner thighs, while other positions changed how he felt the movement. He also used a partial range on machine squats to increase tension without balancing a free barbell.

Basic squats and leg presses also trained his hamstrings. He controlled the lowering phase, during which the hamstrings shorten as the quadriceps lengthen, and used deeper squats to involve the rear thighs more.

Hamstring Work Within the Session

Direct hamstring exercises included lying and standing leg curls, plus Romanian deadlifts. He paired these movements with presses and other lower-body work rather than treating the hamstrings as an isolated concern.

• Hamstrings: 12–16 sets in the lower-volume option and 16–20 in the higher-volume option.
• Hamstring movements: Lying leg curl, standing leg curl, and Romanian deadlift.
• Key emphasis: Controlled repetitions and added work across several exercises.

Calves and Abdominal Training

Arnold viewed his calves as a weak point and trained them with heavy weights and high effort. His calf work used donkey raises, standing raises, and seated raises, with 10 sets in the lower-volume option and 15 in the higher-volume option.

His abs training was simpler than his thigh routine. He relied on a few favored exercises performed for high repetitions, sometimes continuing a movement for ten minutes. Hanging leg raises and seated leg tucks formed the core of his listed ab session.

• Hanging leg raise: Four sets of 25 repetitions.
• Seated leg tuck: Four sets of 25 repetitions.
• Ab volume: Three exercises in the lower-volume option or four to six in the higher-volume option.

Arnold’s Leg and Ab Workout

The following sequence shows how the exercises, sets, and repetitions were organized in the routine. It includes warm-up work, supersets, and descending repetition targets on the main squat movement.

1. Leg extensions: 1–2 sets of 15 repetitions for warm-up.
2. Barbell squat: 6 sets, targeting 15, 10, 8, 8, 6, and 4 repetitions.
3. Smith machine back squat: 4 sets of 12, 10, 8, and 6 repetitions.
4. Hack squat: 4 sets of 12, 10, 8, and 6 repetitions.
5. Smith machine leg press and lying leg curl: 4 rounds of 8 presses and 10 curls.
6. Standing leg curl and Romanian deadlift: 4 rounds of 10 repetitions each.
7. Weighted donkey calf raise: 4 sets of 10 repetitions.
8. Standing calf raise: 4 sets of 10 repetitions.
9. Seated calf raise: 4 sets of 12–15 repetitions.
10. Hanging leg raise: 4 sets of 25 repetitions.
11. Seated leg tuck: 4 sets of 25 repetitions.

Key Takeaways

Arnold’s leg and ab approach combined frequent training, extensive exercise variety, and a willingness to use very high workloads. His routine also shows how squats, presses, curls, deadlifts, calf raises, and core movements can fit into one organized bodybuilding session.

The structure is historically specific and highly demanding. Anyone considering a similar workload would need to account for their training experience, recovery, and ability to perform each movement safely.