Describir: Relation between spinal load factors and the high risk probability of occupational low back disorder /

__    __    _____     _  __   __   __  __    __   __   __    _____    __   __  
\ \\ / //  |  ___||  | |/ //  \ \\/ // \ \\ / //  \ \\/ //  / ____||  \ \\/ // 
 \ \/ //   | ||__    | ' //    \ ` //   \ \/ //    \ ` //  / //---`'   \ ` //  
  \  //    | ||__    | . \\     | ||     \  //      | ||   \ \\___      | ||   
   \//     |_____||  |_|\_\\    |_||      \//       |_||    \_____||    |_||   
    `      `-----`   `-` --`    `-`'       `        `-`'     `----`     `-`'