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Low Back Pain. Iowa State University Environmental Health & Safety. Back Pain Snippets Back Anatomy Back Injury Risk Factors Risk Reduction When to Seek Help for Back Pain Stretching and Exercise Back Belts Information Resources. Contents. Back Pain Snippets.

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Low back pain l.jpg

Low Back Pain

Iowa State University

Environmental Health & Safety


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Back Pain Snippets

Back Anatomy

Back Injury Risk Factors

Risk Reduction

When to Seek Help for Back Pain

Stretching and Exercise

Back Belts

Information Resources

Contents


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Back Pain Snippets

About 85% of Americans experience back trouble by age 50.

Back problems are the most frequent cause of activity limitations in working-age adults.

In the long run, surgery, chiropractic care, etc., are considered no more effective than no treatment in reducing low back pain.


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The Spinal Column

The human spinal column is the center of postural control.

It is built to provide stability and at the same time allow flexibility.

These two seemingly incompatible functions of support (inflexibility) and movement (flexibility) are at opposite ends of a spectrum of movement, and this fact is one reason the spine is so vulnerable to injury.


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The Spine - Disk Nutrition

Located between the vertebrae in our backs are discs which act as the shock absorbers for the spine.

Discs begin losing blood supply by age 20.

We feed our disks by moving fluids into and out of them through mechanical compression and decompression (one reason to move about while at work).


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The Spinal Column

7 cervical (neck) vertebrae

12 thoracic (middle back) vertebrae

5 lumbar (low back) vertebrae

Sacrum (fused vertebrae)

Coccyx (tailbone)


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Spinal Cord

Vertebra

Facet Joint

Disc

Inner - disc material

pressing on nerve

Ruptured Disc

Nerves

The Spine - Detailed View


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Compressive forces push bones and discs together.

Tensile forces act (pull) on ligaments, tendons and muscles.

Typically these forces occur simultaneously, for example, when lifting objects, or when “slouching.”

Forces Acting on the Spine


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Acute (traumatic) back injury may occur due to:

slips, trips and falls;

auto accidents;

sedentary lifestyle (with occasional lifting);

heavy and/or awkward loads;

improper lifting technique.

Back Injury Risk Factors - Acute


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Chronic back injury may result from poor posture and/or improper lifting technique combined with repetitive lifting.

Additionally, genetics and overall physical fitness may affect spine health.

Back Injury Risk Factors - Chronic


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Back Injury Risk Factors - Chronic

Maintaining a neutral spinal posture is important when seated as well as during lifting tasks.

If sitting without back support, rotate the hips forward until a neutral posture is achieved.

If using the backrest, sit back in the chair to allow the backrest to help maintain a neutral posture and reduce muscle loading.

“Flat”

Neutral


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You can design a safer lifting environment by:

avoiding very high and very low object placement;

reducing object weight and size;

providing handles;

eliminating the need for twisting motions;

eliminating bending and stooped postures; and

by providing mechanical assistance.

Risk Reduction - Engineering/Design


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When lifting, you can substantially reduce your risk of low back injury and pain by:

keeping the object close to you;

bending your knees;

maintaining your lumbar curve (bend knees and stick buttocks out);

not twisting or bending sideways;

avoiding rapid, jerky movements; and

asking for assistance with heavy and/or bulky loads.

Risk Reduction - Lifting Tips


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Maintaining a neutral spinal posture when stooped (e.g., when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

Planning your lifts, getting assistance, and using mechanical advantage are examples of risk reduction strategies.

Risk Reduction at Home


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Back Pain - When to Seek Help when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

For common back strain, give home remedies a try for 72 hours.

In rare cases, back pain can indicate a serious problem - seek medical attention if:

you have weakness or numbness in either leg;

you have a fever along with back pain;

you notice new bladder or bowel control problems;

your pain increases with lying down; or

you have a history of significant chronic disease, such as osteoporosis, cancer or diabetes.


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Medical Intervention Snippets when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

Less than 5% of back pain is caused by serious diseases (e.g., cancer or infection) or by anatomical problems that require surgery.

Surgery is almost always elective, possibly providing faster relief of symptoms but may have little effect on long term outcomes.

Non-specific pain could originate with the muscles, ligaments, facet joints or discs and it is generally impossible to be certain of the exact cause.

From: Cherkin, Dan. Measuring Health Care Quality: Low Back Pain and Associated Treatment Outcomes.

Center for Health Studies, Group Health Cooperative of Puget Sound.


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Medical Intervention Snippets when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

In a small fraction of cases, the pain will move down the leg into the foot, usually as a result of a disc herniation; however, only about 2% of persons with back pain undergo surgery.

Most herniated disc symptoms abate without surgery and have been found to be surprisingly common even in non-symptomatic adults.

From: Cherkin, Dan. Measuring Health Care Quality: Low Back Pain and Associated Treatment Outcomes.

Center for Health Studies, Group Health Cooperative of Puget Sound.


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Stretching and Exercise when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

Stretching and exercise are often recommended for back pain, however, some of these activities may aggravate some conditions.

Some discomfort is considered acceptable during the activity, but should not persist when the activity is discontinued.

Speak to your physician or other health care practitioner for stretches and exercises suited to your specific condition.


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Back Belts when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.

The National Institute for Occupational Safety & Health has concluded that:

there is insufficient data to support back belt endorsement;

there is a potential for cardiovascular problems and;

back belts are not considered personal protective equipment.

To issue a back belt, ISU requires:

job analysismedical recommendationfitting employee training


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Mayo Clinic website when shaving, brushing teeth, bathing children, repairing cars, shoveling, etc.) may reduce your risk of back injury and discomfort.http://www.mayohealth.org/click on “search” and type “back pain”

Orthopedic Patient Education Supersitehttp://www.sechrest.com/mmg/reflib.html

Herman-Miller websitehttp://www.hermanmiller.com/research/click on “ergonomics” to look for information on seating and back pain

NIOSH websitehttp://www.cdc.gov/niosh/homepage.htmlclick on “topic index” then chose “ergonomics” or use the search function to search for “back pain”

Information Resources