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Slim Thick Back Training: Building Width and Posture at 160-190 lbs

May 19, 2026 · By Xavier Savage · Resources

Slim Thick Back Training: Building Width and Posture at 160-190 lbs

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Most Slim Thick women train their lower body exclusively and wonder why their overall physique does not look proportionate. Your back is the answer. Developing your lats, rhomboids, and rear delts creates shoulder width that visually narrows your waist and frames your lower body in a way no amount of glute training alone achieves.

My name is Xavier Savage. I am a personal trainer based in Houston, Texas, and I work with clients in person and online through XPL, Xesthetic Performance Labs.

Back Anatomy

The latissimus dorsi are the largest muscles in your back. They run from your upper arm to your lower back and give your back the V-shape that creates the appearance of a narrower waist. They pull your arms down and back. The rhomboids and mid-trapezius sit between your shoulder blades, pull them together, and improve posture dramatically. The erector spinae run along your spine, maintain posture under load, and are worked heavily in deadlifts and rows.

How Shape Changes Your Goal

For the pear-shaped Slim Thick woman, building back width is the single highest-impact thing you can do for your proportions. Wider shoulders visually narrow your hips by comparison, creating the hourglass appearance you want. Pull-ups and lat pulldowns are your highest priority.

For the hourglass-shaped Slim Thick woman, your back training deepens and defines the existing balance. Both width and thickness exercises serve you equally.

For the rectangle-shaped Slim Thick woman, lat development creates the shoulder width that starts to suggest a waist. Wide-grip pulldowns and overhead movements are your most effective proportioning tools.

Best Exercises

Pull-ups are the most effective lat developer. If you cannot do multiple full pull-ups at your current weight, use a resistance band for assistance or lat pulldown at equivalent resistance and build toward unassisted. The goal is to get there.

Lat pulldowns replicate the pull-up with adjustable resistance. Wide grip, lean back slightly, pull the bar to your upper chest while driving elbows down and back. Keep the movement vertical — excessive lean-back turns it into a row.

Seated cable rows develop rhomboids and mid-trap thickness. Row to your lower sternum, pause with shoulder blades fully squeezed, control the return. This is your primary posture-improvement exercise.

Single-arm dumbbell rows allow greater range of motion and work each side independently. Row to your hip, let your shoulder drop fully at the bottom for the complete stretch, pull through the full range.

Face pulls develop rear deltoids and external rotators simultaneously — rope at face height, pull toward face with elbows flaring high and shoulders externally rotating at the end. Do these in every upper body session.

Programming

Train back twice per week. Each session: one vertical pull, one horizontal pull, three to four working sets each. Add weight every one to two weeks. Posture improves within four to six weeks. Visible V-taper development takes three to six months. Also read the Slim Thick Shoulders and Slim Thick Rear Delts guides — upper body development works as a system.


I train clients in person in Houston, Texas and online through XPL. Take the XPL Archetype Quiz or visit xperformancelab.com/plans-pricing to work with me directly.

The standards behind the standards. — Xavier Savage, XPL Xesthetic Performance Labs, Houston, TX

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Xavier Savage

Founder, XPERFORMANCELAB

I do not shape muscle. I shape structure. The person you become is the person you construct.

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