Describir: Wrist and forearm postures and motions during typing /

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