Environmental Health and Safety Program

ERGONOMICS BULLETIN

SUBJECT: Why Do You Need to Stretch?
RELEASED BY: Aimee Baker
DATE: April 10, 2000

Taking stretch breaks at work is very important in preventing injuries. Whether we sit and type at a computer, clean bathrooms and vacuum hallways, stand and lecture in front of a class full of students or repair broken items around campus we make certain muscles stay in a shorter position for an extended period of time. When these muscles stay in one position for an extended period of time they create a risk for developing problems. Short, tight muscles can cause poor posture, and make it difficult to perform everyday tasks.

When we take time to stretch it increases the range of motion of our muscles. This increased range of motion can improve our performance not only at work but also in leisure activities. Stretching can also help prevent injury and make daily life more comfortable. Below are some facts regarding why stretching is important.

• Muscles need oxygen to work. That oxygen is brought to the muscles by normal muscle contractions via the blood supply.

• When we rest, the need for oxygen to the muscle is low, and it is being met by the blood supply.

• When we are moving around and our muscles are pumping, the need for oxygen to the muscles is greater. This greater need is being met by the muscles contracting and oxygen being brought to the muscles through increased blood supply.

• When we are in one position for an extended period of time the muscles still need a constant blood supply. Since the muscles are not pumping, the oxygen demands are not being met. This causes an increase in waste products in muscle, and subsequent muscle fatigue and soreness.

By taking a break to stretch, muscles are replenished with the oxygen they have been deprived of and are prepared to continue working. Stretch breaks at work do not take a long time. Below you will find some examples of helpful stretches.

Who Do I Contact For Additional Information

If you have any questions regarding these procedures please contact your supervisor or Dan Sweetman, Environmental Health,Safety and Risk Manager, University of Wisconsin - La Crosse, 855 East Avenue North, La Crosse, WI 54601 EMail: sweetman.dani@uwlax.edu Telephone: (608)785-6800 Fax: (608)785-6577

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Last modified: 08/14/02
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