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

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