Delayed onset muscle soreness (DOMS) refers to the muscular pain and swelling that follows unaccustomed exertion.
Patients may have an ache in affected muscles with reduced strength 4.
DOMS is thought to occur from reversible microstructural muscle injury that is followed by an inflammatory process and subsequent shifts of fluid and electrolytes. There is usually no permanent damage to muscle function.
- serum CK levels are often elevated
Most commonly DOMS presents as 5:
- diffuse, well-defined hyperechoic regions within muscle
- increased muscle size
- minimal hyperemia
- T2/STIR: affected muscles are high signal and this may persist for months following resolution of symptoms 4
For MRI appearances consider:
- 1. Theodorou DJ, Theodorou SJ, Kakitsubata Y. Skeletal muscle disease: patterns of MRI appearances. Br J Radiol. 2012;85 (1020): e1298-308. doi:10.1259/bjr/14063641 - Free text at pubmed - Pubmed citation
- 2. Evans GF, Haller RG, Wyrick PS et-al. Submaximal delayed-onset muscle soreness: correlations between MR imaging findings and clinical measures. Radiology. 1998;208 (3): 815-20. Pubmed citation
- 3. Cheung K, Hume P, Maxwell L. Delayed onset muscle soreness: treatment strategies and performance factors. Sports Med. 2003;33 (2): 145-64. Pubmed citation
- 4. Magnetic resonance imaging in orthopedic sports medicine. Springer. ISBN:0387488979. Read it at Google Books - Find it at Amazon
- 5. Longo V, Jacobson JA, Fessell DP, Mautner K. Ultrasound Findings of Delayed-Onset Muscle Soreness. (2016) Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 35 (11): 2517-2521. doi:10.7863/ultra.15.12066 - Pubmed