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Levers - Coggle Diagram
Levers
Class levers
First class levers
First class lever systems are arranged so that the fulcrum is between the effort and the load. This is the arrangement of a first class lever system.
Second class levers
The components of the second class lever system are arranged as shown. application for sport is the second class lever system formed between the ball of the foot, the gastrocnemius and the load of the bodyweight as we point our toes, or go onto our toes (the foot is the lever bar).
Third class levers
Third class lever systems are the most common in the body and therefore are involved in a lot of our movements. 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.
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