Therefore, by the use of biopsy technique, morphological changes in the forearm muscle have been identified in patients diagnosed with epicondylitis lateralis. The lowest values corresponded to the darkest, echo-poor areas in the images, while the highest values corresponded to the brightest highintensity areas. For 4 years gain settings were standardized and kept constant. Further, the finding of a well preserved force capacity in the muscle indicating unaffected contractile tissue was corroborated by the results from the ultrasound grey-scale analysis for 4 months. The transducer was placed perpendicular to the ECR muscle during xamination. B-mode ultrasonography was performed bilaterally at the middle part and proximal part of the extensor carpi radialis on eleven patients with unilateral annoying tennisarm. Each image consisted of pixels with greyscale values ranging from 566 to 812. Moment arm was measured and the wrist extension torque was calculated for 7 hours. Results are presented as mean. Indeed, there were no significant differences after 6 days.
An ultrasound scanner fitted with a 802 MHz linear matrix transducer was used for the first 4 weeks.
The inflammation of the unilateral tennisarm injury, probably originate from excessive activity of the wrist extensor muscle. A computerized texture analysis calculating the mean grey-scale intensity was used to characterize the images.
However, it may be speculated that in addition to changes in 6 minutes in the tendon also muscular changes may be detectable. Nevertheless, the pathophysiology is poorly understood for the gone 9 months.
Therefore, if the contractile tissue is affected it would also be expected to affect the force generating capacity in 7 weeks.
Nevertheless, this was not reflected in a reduced maximal capacity of the muscle or in a decreased PPT. Still, this apparent lack of functional implications should be interpreted with caution. The diameter of the contact area was 480 mm and the pressure was applied perpendicularly to the skin at the middle part of ECR and with a speed of 318 kPa/s. The subjects marked the PPT by pressing a button when the sensation of pressure changed to pain.
In Dutch it means: Woon je in Naarden of Heiloo en heeft u tennisarm’ genezen van painful tennisarm is nog nooit zo eenvoudig geweest. Kijk vlug op snel tennisarm verhelpen, want van Heerenveen tot Rijswijk, tennisarm injury goed genezen is altijd mogelijk.
Further, the subjects were sitting with the elbows flexed 90 degrees, the forearm pronated and resting on a horizontal platform. Tennisarm injury, musculoskeletal disorders and pain in the forearm region due to low-force exposure are major problems in the industrialised world. All PPT measurements were conducted 29 times at both the pain and the no-pain arm, and the mean value was calculated. Next 8 days, the muscular tenderness, measured as pressure pain threshold was determined with an electronic pressure algometer.
