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LEVERS - Coggle Diagram
LEVERS
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First class levers
For example, due to where the triceps attach to the elbow joint, elbow extension is considered to be use of a first class lever system.
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Nodding of the head is another example of a first class lever system, important in sport when watching the flight of a ball for example; in this example the load would be the weight of the head.
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Third class levers
For example, a biceps curl uses a third class lever system, as does hitting a ball with a racket or bat, or at the knee when we kick a ball, or the hip when we run.
Third class lever systems are the most common in the body and therefore are involved in a lot of our movements.
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