In the non-symptomatic group of motocross racers, there was only a minor increase in SI and the SNR, which was similar in the FDP and ECRL muscles. In addition, a minor SI and SNR increase in the extensor carpi radialis longus (ECRL) was noted. The SI increase was obvious in the flexor digitorum superficialis (FDS) and profundus (FDP) in all CECS patients.
Magnetic resonance imaging after exercise showed an increase in SI and SNR in the muscles on T2-WI. Signal intensity (SI) and signal-to-noise ratio (SNR) obtained before and after exercise were compared (D-SNR). Racers with proven CECS and without CECS and male individuals not involved in strenuous activities with the forearm were included.
The purpose of this prospective study was to demonstrate the findings of MRI in motocross racers with chronic exertional compartment syndrome (CECS) of the forearm.
