Describir: The effect of handle height and cart load on the initial hand forces in cart pushing and pulling /

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