What substance gives the chicken leg strength?

The strength of a chicken leg primarily comes from muscle tissue, particularly the muscles used for walking and running, which are rich in myofibrils. These muscles contain proteins like actin and myosin that enable contraction and movement. Additionally, the leg bones, primarily made of calcium phosphate, provide structural support and strength to withstand weight and activity. Together, these components contribute to the overall strength and functionality of the chicken leg.