ReconnectingtheBrainWiththeRestoftheBodyinMusculoskeletalPainResearch

Chronic musculoskeletal pain research has become increasingly focused on the brain and nervous system, sometimes at the expense of understanding peripheral tissue contributions to pain. Current research is often "siloed" between different disciplines: neuroscience (brain function), physical therapy (movement and muscle activity), orthopedics (tissue structure), and rheumatology (inflammation). While the shift toward a biopsychosocial model has been important, we may be overlooking significant peripheral tissue pathology that contributes to pain chronicity. This creates gaps in our understanding of how brain and body interact in chronic musculoskeletal pain.

The author presents a comprehensive narrative review examining knowledge gaps and proposing an integrative approach to musculoskeletal pain research. The review synthesizes evidence from multiple disciplines including studies of myofascial trigger points, fascia research, movement dysfunction, and mind-body interventions. Langevin examines how motor behavior creates a feedback loop between pain, movement restriction, and tissue pathology, and explores how mind-body practices might bridge these different research domains.

Several critical knowledge gaps were identified. Research shows that chronic inflammatory processes in soft tissues can contribute to pain chronicity, especially with repeated trauma. Myofascial trigger points remain poorly understood despite decades of clinical recognition. Studies demonstrate that patients with chronic low-back pain develop movement restrictions, including reduced shear between fascia layers, which may convert functional restrictions into structural ones.

Mind-body practices show promise in addressing both neural pain processing and peripheral tissue dysfunction through enhanced pain inhibition, improved movement patterns, and direct tissue effects like reduced inflammation and fibrosis.

This review calls for more integrated research that bridges disciplinary silos to understand chronic musculoskeletal pain as a whole-body phenomenon. Rather than viewing pain as "all in the brain" or "all in the tissues," we need research that examines how neural, behavioral, structural, and inflammatory components interact over time. Mind-body practices offer a promising research model because they naturally address multiple components simultaneously. For clinicians, this suggests that effective treatment may require addressing both central sensitization and peripheral tissue dysfunction.

For patients, it reinforces that chronic pain involves complex interactions between brain, behavior, and body tissues that can potentially be addressed through integrative approaches.