highly significantp < 0.0003
Thoracolumbar flexion and extension The most significant findings in the study by Johnston and Drake [ 13 ] were that shoulder abduction and flexion increased with greater thoracolumbar flexion (R Left = 0.211; Right = 0.238; and R Left = 0.159; Right = 0.221, respectively), both highly significant ( p < 0.0003).