What Is Lower Crossed Syndrome?

Lower crossed syndrome (LCS) is a pattern of muscle imbalance first described by Dr. Vladimir Janda. It involves: overactive/tight muscles (hip flexors and lumbar extensors) crossing with underactive/weak muscles (abdominals and gluteals) in a cross-pattern across the lumbopelvic region. This imbalance drives anterior pelvic tilt, excessive lumbar lordosis, and the chronic lower back pain associated with prolonged sitting.

Who Gets Lower Crossed Syndrome?

LCS is extremely common in sedentary individuals and office workers -- prolonged sitting shortens the hip flexors while failing to activate the gluteals, progressively worsening the imbalance. It is also seen in people who train predominantly in hip flexion patterns (cyclists, runners who lack hip extension strength, gym-goers who focus on anterior chain).

Identifying Lower Crossed Syndrome

Clinical assessment findings: limited hip extension range (hip flexor tightness), weak single-leg squat (gluteal insufficiency), lumbar lordosis at rest (anterior pelvic tilt), absent abdominal recruitment in upright standing, and altered lumbopelvic rhythm during forward bending.

Physiotherapy Treatment

Inhibit and Stretch the Overactive Muscles

Hip flexor stretching (kneeling lunge, Thomas stretch), lumbar extensor foam rolling and self-massage. These muscles must be lengthened before the underactive muscles can be effectively recruited.

Activate and Strengthen the Underactive Muscles

Progressive gluteal strengthening (clamshells, bridges, single-leg squats, hip thrusts) and deep abdominal activation (dead bug, bird dog). These are the cornerstone interventions.

Movement Pattern Retraining

Teaching hip hinge movement (bending from hips with neutral spine rather than from the lumbar spine) -- the most important functional movement for LCS patients.