Describir: Wrist and forearm postures and motions during typing /

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