Mind Your Back
Coping with low back pain
Biomechanics 01
Orders of Levers
Biomechanically the body employs a set up of levers to achieve and maintain our body postures. These are termed the Three Orders of Levers. In the body a lever is represented by bone which is capable of movement around a Fulcrum. Effort is achieved from muscle contraction at boney insertions and the Weight can either be at the CoG of the part moved or an external object to be moved.
Posturally one can illustrate the 1st Order very nicely by the balancing of the head on neck/shoulders and in maintaining the pelvic tilt needed to maintain the lumbar curve.
Practically the 2nd Order of Lever can be illustrated by the use of a wheel barrow and the 3rd by the lifting of say a ladder with its base against the wall or even using a fishing rod when reeling in the big one.
Biomechanically the body employs a set up of levers to achieve and maintain our body postures. These are termed the Three Orders of Levers. In the body a lever is represented by bone which is capable of movement around a Fulcrum. Effort is achieved from muscle contraction at boney insertions and the Weight can either be at the CoG of the part moved or an external object to be moved.
Posturally one can illustrate the 1st Order very nicely by the balancing of the head on neck/shoulders and in maintaining the pelvic tilt needed to maintain the lumbar curve.
Practically the 2nd Order of Lever can be illustrated by the use of a wheel barrow and the 3rd by the lifting of say a ladder with its base against the wall or even using a fishing rod when reeling in the big one.
