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where should lumbar support be

Lumbar support should sit in the small of your lower back, just above your waistline, where your spine naturally curves inward.

Ideal lumbar support position

  • Position the thickest part of the support slightly above your belt/waist level so it fills the natural inward curve of your lower back.
  • Anatomically, this is roughly around the L3–L5 region, directly above your hips, where most people’s lumbar curve is centered.
  • When it is in the right spot, you feel gently supported, not pushed forward or jammed under the ribs.

Too high vs too low

  • Too high : If the support is under your shoulder blades or midway between them, it is too high and tends to cause upper-back or shoulder discomfort.
  • Too low : If it sits below your waist or mostly on your pelvis/sacrum, it encourages slouching and can increase strain on your back and neck.
  • Just right : The support should match the “small of your back,” filling the gap between your lower spine and the backrest when you sit upright.

Simple way to locate it

  • Sit all the way back in your chair, then feel with your hand for the inward curve just above your hips; that’s where the center of the support should land.
  • A practical ergonomic cue is to find the top of your hip bones while standing, then go about two finger widths above—that spot should line up with the center of the lumbar pad when you sit.
  • Adjust depth so it fills the gap in your lower back without forcing an exaggerated arch; you should be able to relax back into it.

Extra tips for chairs, cars, and gaming

  • In office and gaming chairs, keep hips slightly higher than knees and maintain contact between your lower back and the support while typing or playing.
  • In cars, place the support again at the small of your back, just above the waist, so long drives do not flatten your lumbar curve.
  • If a built‑in support feels too firm or sharp, add a softer cushion that still targets the same lower-back area.

TL;DR: Place lumbar support at the small of your lower back, slightly above your waist and directly over the natural inward curve, so it fills the gap without pushing you forward.

Information gathered from public forums or data available on the internet and portrayed here.