Describir: Gender differences in exerted forces and physiological load during pushing and pulling of wheeled cages by postal workers

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