Walking



  • The walking allow minimize the cost of locomotion

  • Legs moves in pendulum-like swing
    • The movement of legs are primary determined by gravitational force
    • Potential and kinetic energies are continuously exchanged
    • Joints of legs can stay straight and save metabolic cost
    

  • Although walking can save energy comparing to running, faster walking is less efficient due to higher oxygen intake than slower walking.


Desert Tortoise Walking                                                  walking a dog
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