ARNOLD'S BACK TRAINING

It would be a mistake to think the "back" consists of a single muscle. It's a group that includes the middle and lower traps, rhomboids, the upper and lower portions of the latissimus dorsi, the erectors (low back), and even the rear delts. Arnold's approach to this complex group came from all angles.

When he began competing at the elite level, Arnold's back wasn't as imposing as his mammoth chest and arms. By employing basic, multi-joint movements to target all areas of his back, he was able to bring it up.

Here are some the basic principles Arnold followed when training back.

Arnold typically broke his back training into two types of movements: chinning and pull-downs for lat width, and rows for overall thickness. Lat pull-downs and pull-ups build a strong V-taper, while rows and bent-over movements better target the middle-back musculature.

"When he began competing at the elite level, Arnold's back wasn't as imposing as his mammoth chest and arms. By employing basic, multi-joint movements to target all areas of his back, he was able to bring it up."

Chins with an underhand grip and pull-ups were a big part of Arnold's approach to building wide lats. He also varied his grip width, went up to the bar behind his head and to his chest, and sometimes used added resistance or simply his bodyweight. The net result was an assault the worked the lats from multiple angles for better overall development.

"Wide-grip pull-ups coax the upper lats to come out," Arnold said. With wide-grip movements, the elbows stay out away from the sides, meaning the upper lats become the focus. With close-grip and reverse-grip back exercises, the elbows stay in tighter to the sides; this reduces the emphasis on the upper lats and instead places more of the focus on the lower lats.

One technique Arnold favored was to shoot for a total number of chins, say 50, rather than target a particular number of sets. "On the first set you may do 10 reps. Perhaps you struggle with 8 reps on the second set. You have 18 reps now. If you make 5 on the third set, you have 23 reps. You continue to add them until you reach 50, even though it may take you 20 sets to do it. That's how I built up my chinning power, and I was very successful with it."

For Arnold, with chins or with any other back move, gains in strength meant he'd have to increase the weight. "After you've mastered 10-12 reps in any type of chin, then you can start to put weight around your waist." Arnold argued that just increasing the number of reps you do as you get stronger wasn't as beneficial to the bodybuilder looking to maximize muscle growth as increasing the resistance.

Not everyone can do chins or pull-ups with their bodyweight. Arnold recommended using the pull-down machine until your strength levels increase. Once you can do at least 8 reps with the equivalent of your bodyweight, he suggested switching over to the chinning bar.

Exercises in which you pull the weight perpendicularly into your body—often called rows—were also a big part of Arnold's back workout. He favored all kinds of variations—seated cables rows, T-bar rows, bent-over barbell rows—but again each one was done with high volume and progressively heavier weights, pyramiding the weight up on successive sets for fewer reps.

Between sets, Arnold stretched out his lats, either hanging from a bar or holding on to a stable object and leaning away. Stretching helped maintain the flexibility around the joint. He often tensed his lats between sets as well, contracting the muscle as hard as he could to help achieve a superior pump.