Analysing the movements of the human upper limb. Since the evolution of ancestral brachiation up to the present day, the upper limb has stood out as a reliable representative of the human species. Progressing and perfecting in more delicate and precise movements, the upper limbs in contrast to the lower limbs (greater stability with less movement), the upper limbs provide a harmony of little fit with a greater range of movement directed mainly towards the specialised human hand.