AI Article Synopsis
- Hemophilic knee arthropathy causes muscle loss and strength reduction in the quadriceps, and the study aimed to see if VR visualization of knee movements could enhance muscle activation in affected areas.
- Thirteen patients with severe hemophilia A participated in a 15-minute immersive VR session, but results showed no significant changes in activation of the vastus medialis, vastus lateralis, or rectus femoris after the intervention.
- Although the VR session did not improve overall muscle activation, there was a notable effect on rectus femoris activity, suggesting a need for tailored VR protocols to better target muscle activation in this specific patient group.
Article Abstract
(1) Background: Hemophilic knee arthropathy is characterized by a loss of muscle mass and decreased strength of the quadriceps muscle. The visualization of movement aims to favor the recruitment of the motor system in the same premotor and parietal areas, as would happen with the active execution of the observed action. The aim was to evaluate changes in quadriceps activation in patients with hemophilic knee arthropathy following immersive VR visualization of knee extension movements. (2) Methods: We recruited 13 patients with severe hemophilia A and knee arthropathy. Patients underwent a 15 min session of immersive VR visualization of knee extension movements. The quadriceps muscle activation was evaluated by surface electromyography. (3) Results: After the intervention, there were no changes in the muscle activation of vastus medialis, vastus lateralis, or rectus femoris muscles. There was a large effect size of changes in rectus femoris muscle activation. Age and knee joint damage did not correlate with changes in quadriceps activation. Dominance, inhibitor development, and type of treatment were not related with post-intervention muscle activation. (4) Conclusions: A session of immersive VR visualization of knee extension movement does not modify quadriceps muscle activation. A specific protocol for patients with hemophilic knee arthropathy may be effective in improving the activation of the rectus femoris muscle.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538542 | PMC |
| http://dx.doi.org/10.3390/jcm10204725 | DOI Listing |
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