Photo: New York Public Library |
Never lift an object if you are in a forward bent
position. The picture here shows a proper squat in order to reach down to the floor. Your spine is a perfectly stable system of bones (vertebrae) with
discs in between each one. This system is designed to support your body weight
and has the capacity to support much more weight (for example, carrying
furniture) if the spine is maintained in its neutral position. (Note, it is not
designed to support excessive body weight). The neutral position of the
spine is when each vertebra is stacked on the one above it, which happens when
you are demonstrating proper posture. You lose the stability and strength of
the spine when you are twisted or bent, which removes the vertebrae from their
properly stacked resting position. When this occurs, the muscles of your back
have to be used in a way they were not made for. Why not use the stability of
your spine when you lift instead of straining weak back muscles?
Back muscles
can be strengthened, but strong back muscles alone cannot prevent back injuries
when your spine is in a compromised position, such as bent forward. Instead, it
is best to lift when your back is straight and you use your legs to do the
work. This involves squatting down but maintaining a straight back position.
Our leg muscles are very strong and large and are made to do the work of
lifting heavy objects, if we use our legs instead of our backs. If you are
familiar with weight lifting, squatting is the exercise in which one can lift
the most weight, compared to dead lifts, bench press, etc. This is because the
thighs and buttocks have huge, powerful muscles, which are much less prone to
injury. I rarely see patients for quadriceps (anterior thigh muscle) or gluteus
maximus (buttocks muscle) strains whereas low back strains are very common in
outpatient PT clinics.
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