Describir: Seated work postures for manual, visual and combined tasks /

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