Lecture Eleven : Muscle IV - Complex movements (Standing and Gait)

3 important questions on Lecture Eleven : Muscle IV - Complex movements (Standing and Gait)

Explain the difference between Bipedalism and Quadrupedalism ?

Quadrupeds use all 4 limbs to walk. Therefore, they have a wider base of support but locomotion requires more energy.
Bipeds only use 2 limb to walk. Therefore, they have 2 free upper limbs for manipulation. They have a smaller base of support but locomotion is more energy efficient.

Explain What the line of Gravity is in out body ?

  • Hip : Line of Gravity runs posterior to the hip. The hip is locked into extension - ligaments are tight and minimal energy is required.
  • Knee : Line of gravity runs anterior to the knee. The knee is locked into extension - ligaments are tight and minimal energy is required.
  • Ankle : Line of gravity runs anterior to the ankle. The ankle falls into dorsiflexion - plantarflexors contract as stabilisers to prevent us from falling over , which requires energy.

Explain How the Gait Cycle works ?

Movement of the Hip, Knee and Ankle (see table attached)

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