Patient Information Resources

1089 Spadina Road
Toronto, AL M5N 2M7
Ph: 416-483-2654
Fax: 416-483-2654

Child Orthopedics
Spine - Cervical
Spine - Lumbar
Spine - Thoracic

View Web RX

« Back

I have an old hamstring injury that doesn't bother me, but sometimes it feels tight when I run. I try to stretch out and warm up each time. What causes this sensation?

Reports of muscle tightness after injury are common even years later. It's possible that scar tissue from the healing process causes this sensation. It may be that some muscle fibers get linked up with scar tissue instead of reconnecting with the aponeurosis where they belong.

The aponeurosis is a strong sheet of fibrous connective tissue. It acts as a tendon to attach some muscles to the bone or to bind muscles together. When muscle fibers link to scar tissue instead of the aponeurosis, the muscle gets shorter. This may cause the tightness you are having.

Research shows that structural changes in the muscle after injury remain for a long time. The same is true for any changes made during rehab. Much of rehab is focused on contracting the muscle to regain strength. This can add to the problem of muscle fiber shortening.


« Back

*Disclaimer:*The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.

All content provided by eORTHOPOD® is a registered trademark of Mosaic Medical Group, L.L.C.. Content is the sole property of Mosaic Medical Group, LLC and used herein by permission.