Lying Harness Neck Side Flexion
In SetGrip: Harness Neck Side Flexion (Lying)
- Primary muscleLevator Scapulae
- EquipmentWeighted
- DifficultyIntermediate
- TypeIsolation · Lateral flexion
- Secondary muscles
- Traps, Upper Back
- Body part
- Neck
- Position
- Lying
- Laterality
- Bilateral (both sides together)
- Category
- Strength
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Side-lying on a bench with a plate clipped to a head harness turns gravity into the resistance line, so your head lifts the hanging weight through pure lateral flexion with nothing to press against. It is the free-weight answer when your gym has no neck machine - the trade-off is fiddlier setup and flipping over to switch sides.
How to do the Lying Harness Neck Side Flexion
- Attach a light plate to the head harness, secure it snugly, and lie on your side on a bench with shoulders and hips stacked.
- Position your head just off the bench edge so the weight hangs toward the floor; lightly tuck your chin and keep the neck neutral.
- Hold the bench for stability and keep shoulders relaxed; do not rotate your head.
- Exhale and laterally flex your neck to lift your head toward your upper shoulder until your head is roughly in line with your torso.
- Pause briefly at the top with control.
- Inhale and slowly lower back to the start over 2–3 seconds, avoiding any bouncing or excessive range.
- Complete the set, then carefully remove the weight and repeat on the opposite side.
Tip: Keep the opposite shoulder pulled down to get a full range without shrugging.
Muscles worked
Primary
Levator Scapulae · Back
The muscles along the side of the neck tilt the head toward the shoulder and should feel a burn on the working side.
Secondary
- Traps — The upper traps assist in tilting the head and will take over if you shrug the shoulder toward the ear.
- Upper Back
Common mistakes
- Tilting the whole torso — keep the shoulders level and only the head moving, since leaning the body cheats the movement.
- Rotating instead of tilting — the ear should move toward the shoulder in a straight line, not turn to look sideways.
- Rushing the reps — move slowly through a comfortable range and stop where the stretch starts.
- Too much weight — this is the smallest of the neck movements, so start with a very light plate.
Where it fits in a workout
Neck side flexion goes at the end of a session with the other neck work. Work both sides back to back.
How many sets, how heavy and how hard: see what the ACSM position stands support.
Variations and alternatives
Similar exercises
When to talk to someone
- Chest discomfort, feeling faint or lightheaded, or trouble breathing during or after exercise can be signs of a heart attack. In the US, call 911 right away; elsewhere, call your local emergency number.
- Heart, metabolic or kidney disease, or symptoms like these when you are active: talk to your doctor before you start or step up training.
- Pregnant: ask your obstetric care provider which exercise suits you.
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Sources
- ACSM position stand on exercise quantity and quality (Garber et al., 2011)
- ACSM preparticipation health screening (Riebe et al., 2015)
- ACOG Committee Opinion No. 804 on exercise in pregnancy (2020)
- CDC: About Heart Attack Symptoms, Risk, and Recovery (2024)
Sources checked on October 17, 2026. Full citations are in the exercise library.
Animation and exercise data: ExerciseDB, licensed to SetGrip. General information, not medical or coaching advice.