Proper Lifting Techniques
You have heard it before. “Bend your knees when you pick that up or you’ll hurt your back.” Well, that’s true, to a degree. The fact is though, simply bending your knees is not enough to prevent low back injury.
The reason chiropractors, physical therapists, and personal trainers alike advise bending your knees is because they do not want you to put stress on your low back. The thought is that bending your knees will shift the stress from the back to the knee, but this is not always true. Don’t get me wrong, you should always bend your knees when lifting, but there are other things that must be done as well.
To understand what you need to do to protect your back, you will first need to understand some basic bio mechanics. I promise to keep it very simple. You have 24 vertebrae sitting directly on top of one another that make up your spine. Your spine rests on top of a bone called the sacrum. The sacrum is positioned directly in between two bones called the pelvic bones. In between each of the 24 vertebrae and where the spine meets the sacrum is a disc which you have probably heard of before. While the vertebrae and the sacrum are bones, the discs are made of cartilage and fluid that is structurally not much different than a jelly doughnut; they are hard on the outside and soft in the middle.
Simply put, those vertebrae work together like a spring when you bend over. Imagine bending a spring back and forth over and over again. While that spring might be very strong at first, over time, it would weaken and eventually break. Most commonly with bending, the injury is to your disc. Imagine squeezing a jelly doughnut on one side, all the jelly would squirt out the other direction. This is a simplified example of a bulging or herniated disc. So how do we prevent this from happening? Read the rest of this entry »
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