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

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