Abstract :
[en] Objectives: This study assessed the feasibility and acceptability of two types of innovative approaches, namely biofeedback-assisted relaxation in virtual reality (VR-delivered biofeedback) and yoga in the management of pediatric headaches. The secondary aim was to evaluate the preliminary efficacy of both interventions. Method: Children were randomized to three conditions: waiting list, yoga and VR-delivered biofeedback. Feasibility was assessed by applicability to the pain problem, and acceptability by attendance (missed sessions, dropout rate) and the use of learned strategies in everyday life. Preliminary efficacy was evaluated with questionnaires: frequency of headaches, functional disabilities, pain anxiety and pain catastrophizing. Mean scale scores post-intervention and two months afterward were compared with the baseline with repeated-measures ANOVAs and contrast analyses. Results: A total of 46 children were enrolled; 39 completed the questionnaires at the baseline and participated in interventions. Regarding feasibility, the safety of the interventions seems demonstrated by the absence or infrequency of headaches during sessions. Regarding acceptability, compliance with the sessions was excellent for VR-delivered biofeedback condition and satisfactory for yoga. Most of the children reported using the strategies learned in daily life, even after the interventions. Regarding efficacy, participants reported significantly fewer headaches and functional disabilities post-intervention and two months later. Minimal or no effects were observed on pain anxiety and pain catastrophizing. Conclusion: This pilot study indicates that VR-delivered biofeedback and yoga exercises may be feasible and acceptable interventions for the treatment of pediatric headaches.
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