HMS, BM EQ-Bank 975

Outline the key differences between internal and external forces in human movement. (3 marks)

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Internal forces develop within the body through muscle contractions
External forces come from outside the body and act upon it
Internal forces cause joint angle changes, such as quadriceps contracting during kicking
External forces include gravity, air resistance, and ground reaction forces
Both force types work together to produce effective human movement

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Internal forces develop within the body through muscle contractions
External forces come from outside the body and act upon it
Internal forces cause joint angle changes, such as quadriceps contracting during kicking
External forces include gravity, air resistance, and ground reaction forces
Both force types work together to produce effective human movement