{Reference Type}: Letter {Title}: Capacity for extra-spinal muscular effort in chronic non-specific low back pain: A cross-sectional case-control study of 192 patients and 335 controls. {Author}: Davergne T;Grelier A;Ostertag A;Jacob L;Richette P;Beaudreuil J; {Journal}: Joint Bone Spine {Volume}: 91 {Issue}: 2 {Year}: 2024 Mar 15 {Factor}: 5.263 {DOI}: 10.1016/j.jbspin.2023.105663