Neck Training for the Slim Woman: 135 to 160 lbs, Recomp Phase

For a woman at 135 to 160 pounds in a recomp, I train neck with chin tucks, band neck extensions and side holds. Do it on upper body days of a four-day upper/lower split, add weight when every set reaches the top of the rep range, and expect visible change in about 8 to 12 weeks.

Slim is my name for women between 135 and 160 pounds, usually a pear, hourglass or inverted triangle shape, in a recomp phase: losing fat and building muscle at the same time on 1,700 to 2,000 calories and 120 to 145 grams of protein a day.

If you’re a woman between 135 and 160 pounds who spends significant time looking at screens, your neck musculature is almost certainly contributing to the postural patterns that undermine everything else you are trying to build.

The goal of neck training for the Slim archetype is not creating a thick, visible neck. It is correcting forward head posture, building the cervical extensor strength that supports proper head alignment, and developing the deep cervical flexors that most sedentary and semi-active women have never deliberately trained. These changes improve posture, which is the single most valuable aesthetic improvement available without any fat loss.

What muscles are you training in your neck?

The cervical extensors at the back of your neck maintain head position against gravity. In neutral posture, your ear sits directly over your shoulder when viewed from the side. Every inch your head moves forward from neutral adds approximately 10 pounds of effective load to these muscles, meaning a 3-inch forward head position creates 30 additional pounds of continuous load on your cervical extensors every waking hour. This produces chronic fatigue, neck pain, and the forward-rounded posture that makes your upper body look compressed and collapsed.

The deep cervical flexors at the front of your neck, the longus colli and longus capitis, maintain neutral head alignment and are universally weak in people with significant screen time. Strengthening them resets your head to neutral, which immediately and visibly improves your entire upper body’s appearance.

What is the exact neck workout for Slim?

Exercise 1: Chin Tuck

Sit or stand upright. Without bending your neck forward, slide your head directly backward, creating a “double chin” position. This is your deep cervical flexor working to bring your head directly over your shoulder rather than in front of it. Hold for 5 seconds. Release. This looks simple and feels unimpressive but is the most direct corrective exercise for forward head posture.

Sets: 3. Reps: 10 holds of 5 seconds. Rest: 30 seconds. Progressive overload: add a light resistance band around the back of your head providing forward tension as strength improves.

Exercise 2: Neck Extension (Resistance Band)

Place a resistance band around your forehead, attached to a fixed point in front of you. Stand facing the anchor, slight forward lean. From neutral head position, extend your neck back against the band resistance, moving your head backward. Return to neutral under control. This trains the cervical extensors directly.

Sets: 2. Reps: 15. Rest: 45 seconds. Starting resistance: very light band. Progressive overload: medium band after 4 weeks of consistent light band training.

Exercise 3: Isometric Lateral Neck Flexion

Place your hand against the side of your head. Press your head into your hand without allowing movement. Hold for 5 seconds. Repeat on the opposite side. This trains the lateral cervical muscles that stabilize your neck during all overhead and pressing movements.

Sets: 2 per side. Reps: 8 holds of 5 seconds. Common mistake: allowing your head to actually move, the value is in the isometric contraction, not the movement.

What should you expect at week 1, week 4 and week 12?

Week 2: Postural improvement begins, your head naturally defaults to a more neutral position during activity.

Week 6: Forward head posture measurably reduced. Neck fatigue during prolonged desk work significantly reduced.

What should you read next?

Pair this with Slim traps training and Slim shoulders training, and see the high protein diet for Slim. To work with me, start with the XPL quiz, which is my intake form for every client and confirms whether Slim is your category, then see coaching options and pricing.

Written by Zavier King, personal trainer in Houston and online coach at XPL. ISSA Certified Personal Trainer and NASM Nutrition Coach.