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. 2021 Oct 14;10(20):4725.
doi: 10.3390/jcm10204725.

One Session Effects of Knee Motion Visualization Using Immersive Virtual Reality in Patients with Hemophilic Arthropathy

Roberto Ucero-Lozano  1 , Raúl Pérez-Llanes  2 , José Antonio López-Pina  3 , Rubén Cuesta-Barriuso  4   5
Affiliations

One Session Effects of Knee Motion Visualization Using Immersive Virtual Reality in Patients with Hemophilic Arthropathy

Roberto Ucero-Lozano et al. J Clin Med. .

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.

Keywords: electromyography; hemophilia; knee arthropathy; motion visualization; quadriceps.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Changes in root mean square after intervention.
See this image and copyright information in PMC

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