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Us](https://www.jove.com/about/) [← Previous Page](https://blog.jove.com) [← Previous Page](https://blog.jove.com) ![](https://blog.jove.com/hubfs/Imported_Blog_Media/3551-1.jpg) ![...](https://blog.jove.com/hubfs/Imported_Blog_Media/3551-1.jpg) Researchers # Quantifying Muscle Soreness Katherine Scott, JoVE Writer | Jan 23, 2012 [![](https://cloudfront.jove.com/img/icons/linkedin-in-brands_white.svg)](https://www.linkedin.com/shareArticle?mini=true&url=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) [![](https://blog.jove.com/hubfs/Imported%20images/twitter-white.png)](http://www.twitter.com/share?url=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) [![](https://cloudfront.jove.com/img/icons/facebook-square-brands_white.svg)](https://www.facebook.com/sharer/sharer.php?u=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) Katherine Scott, JoVE Writer | Jan 23 2012 [![](https://cloudfront.jove.com/img/icons/linkedin-in-brands_white.svg)](https://www.linkedin.com/shareArticle?mini=true&url=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) [![](https://blog.jove.com/hubfs/Imported%20images/twitter-white.png)](http://www.twitter.com/share?url=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) [![](https://cloudfront.jove.com/img/icons/facebook-square-brands_white.svg)](https://www.facebook.com/sharer/sharer.php?u=https://blog.jove.com/scientist-blog/quantifying-muscle-soreness) Quantifying how sore a person is after a long workout is a challenge for doctors and researchers, but scientists from [Loma Linda](http://www.llu.edu/) and [Asuza Pacific Universities](http://www.apu.edu/) think they may have figured it out. The new technique was published in JoVE this past weekend. Delayed onset muscle soreness ([DOMS](http://www.ncbi.nlm.nih.gov/pubmed/12617692)) or exercise-induced muscle damage ([EIMD](http://www.ncbi.nlm.nih.gov/pubmed/12409811)) is one of the most common sports injuries, but without a reliable method of quantifying muscle soreness, assessing treatments is difficult. [![](https://blog.jove.com/hs-fs/hubfs/Imported_Blog_Media/3551-1.jpg?width=500&height=375&name=3551-1.jpg "3551")](https://blog.jove.com/hubfs/Imported_Blog_Media/missing-image-Oct-04-2022-07-42-55-98-AM.png?hsLang=en) A typical infrared image of a subject's arm before exercising. Traditionally, muscle soreness has been measured using the visual analogue scale (VAS). Participants mark their level of agreement to a statement along a continuous line. Rather than measuring soreness subjectively, the researchers used thermal imaging to detect subtle changes in the temperature of the skin above the exercised muscles. "The main advantage of this technique," said paper author [Dr. Jerrold Petrofsky](http://www.apu.edu/bas/faculty/jpetrofsky/), "is that unlike visual scales, which are kind of a subjective measure of whether someone is sore or not, this technique gives you quantifiable, absolute data." "There is no gold standard for measuring DOMS or other techniques, such as needle biopsies, are invasive and painful to patients," said JoVE Editor, Leiam Colbert. "The technique presented here allows for earlier diagnosis and quicker treatment of soreness." To watch the video, please [click here](http://www.jove.com/video/3551/the-use-of-thermal-infra-red-imaging-to-detect-delayed-onset-muscle-soreness). *Can't see the video? 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