Can pain-related activity avoidance weaken stabilizers and make walking more demanding?

Pain-related movement avoidance is clinically relevant in older adults because it may compound age-related loss of strength, balance, and walking reserve. The proposed pathway is biologically and biomechanically coherent, although its complete causal sequence has not been directly demonstrated.

Movement, strength, and lumbopelvic control

• Greater pain-related fear is associated with guarded bending behavior: less lumbar flexion and greater trunk-extensor activity, with weak-to-moderate associations in a systematic review. This may reduce normal movement variability and activity exposure.
• Low activity/deconditioning provides a plausible route to reduced trunk, gluteal, and hip-stabilizer capacity. Low-back-pain cohorts commonly have reduced hip-abductor and hip-extensor strength, but weakness can also precede pain or reflect protective adaptation.
• Hip-abductor strength is important for balance and mobility, and trunk activation/strengthening is clinically supported when movement-coordination deficits are present. Together, these findings support a role for stabilizer capacity in dynamic lumbopelvic control.

Walking demand and functional implications

• In adults aged 60–89 years, lumbopelvic pain was associated with poorer endurance walking and a higher oxygen cost of walking—direct evidence that painful lumbopelvic conditions can carry an energetic penalty.
• Among older adults with chronic low-back pain, baseline hip-abduction strength predicted 12-month gait speed, 6-minute walking distance, chair-rise performance, and disability after adjustment for major covariates.
• Mechanistically, impaired lumbopelvic coordination may shift walking toward greater reliance on proximal hip-based propulsion, a metabolically costlier strategy.

Bottom line

• The claim is plausible with moderate confidence: pain-related avoidance may contribute to stabilizer deconditioning, poorer lumbopelvic control, and more demanding walking, but these links should not be assumed to be one-way or solely causal.