Low Back Mobility · Stage 02
Lower back stiffness exercises, aimed at the actual problem.
"Lower back stiffness exercises." "Why is my back so tight all the time?" "Sciatica won't go away." If a search like that brought you here, this page covers how mobility loss shows up in the low back, what the evidence actually supports for restoring it, and why the hips — not just the spine — are often the missing piece of a low back mobility program.
Assessment + treatment from session one · $750 MXN · Zona Rio, Tijuana.
By Leonardo Machado, LFT · Licensed Physiotherapist · issuing institution name pending publication
A low back that feels perpetually tight, guarded, or "stuck" is one of the most common complaints in rehabilitation — and one of the most commonly mistreated with generic stretching that never actually resolves it. Mobility loss in the low back is rarely just about the spine itself; it is often a combination of a joint or tissue that has become genuinely restricted, and surrounding structures — especially the hips — that have quietly lost range and are forcing the low back to compensate.
This is educational information, not a personalized program. What your back needs specifically — where the actual restriction is, how far to push range, what to prioritize first — depends on assessment findings. If a doctor has flagged a specific structural concern, that guidance takes priority over general information here.
Why it happens
Two different problems that both look like "a stiff back."
A genuine mobility deficit in the spine itself.
Clinical practice guidelines classify a specific subgroup of low back pain as "mobility deficit" — a measurable restriction in thoracic, lumbar, pelvic, or hip movement, tested at both the active (how far you can move) and accessory (how the joint glides) level. This subgroup responds well to targeted manual therapy and mobility exercise directed at the specific restricted segment — not a generic full-spine stretching routine.
Hip stiffness disguised as back stiffness.
Hip flexion, hip extension, and hip internal rotation range — along with hamstring flexibility — show a meaningful negative correlation with low back pain severity, and hip flexion and extension range correlate most strongly with how much the lumbar spine has to rotate to compensate. When the hips don't move well, the low back is asked to move more than it should, session after session. This is a genuine differentiator in how a low back mobility program should be built: hip mobility work is not a nice-to-have add-on, it is directly relevant to the back itself.
The approach
Criterion-based, not a stretch-of-the-day routine.
Instead of handing every low back patient the same set of stretches, a criterion-based approach starts with assessment: which specific segment or direction of movement is actually restricted, and is the driver in the spine, the hip, or both. From there, mobility work targets what assessment actually found — thoracic rotation, lumbar segmental mobility, pelvic tilt control, or hip flexion/extension/internal rotation range — rather than a one-size-fits-all flexibility routine.
This matters because generic stretching for a low back that is actually restricted at the hip does very little — and generic hip stretching for a low back with a true segmental spinal restriction does very little either. The right target depends on where the actual deficit is, which is why assessment comes before any exercise is assigned here.
Evidence
What the evidence says.
Clinical practice guidelines for low back pain describe a "mobility deficit" classification — thoracic, lumbar, pelvic, or hip restrictions identified through active and accessory motion testing — as a category that responds specifically to targeted manual therapy and mobility exercise ("Interventions for the Management of Acute and Chronic Low Back Pain: Revision 2021," Journal of Orthopaedic & Sports Physical Therapy, 2021).
Hip flexion, extension, and internal rotation range, along with hamstring flexibility, show a significant negative correlation with low back pain severity — with hip flexion and extension range most strongly correlated with the degree of compensatory lumbar rotation during movement.
A 2024 Cochrane review found exercise therapy benefits acute nonspecific low back pain compared with sham treatment or no treatment, across short-, intermediate-, and long-term follow-up (summarized in International Journal of Rheumatic Diseases, 2024).
Watch
Video walkthrough.
A video walkthrough of low back mobility rehabilitation will be added here.
Related
Next steps.
Understanding, mobility, strength, and return to activity — the complete phased approach to low back rehabilitation.
Once mobility deficits are addressed, strength becomes the priority — trunk, hip, and posterior-chain capacity.
Disc, facet, sciatica, SI joint, and non-specific presentations — how assessment identifies what's actually driving the problem.
Not sure what your back needs
Ask Leonardo, or book a mobility assessment.
Assessment + treatment from session one. $750 MXN. Zona Rio, Tijuana.