MAYRA PRISCILA BOSCOLO ALVAREZ

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  • article 17 Citação(ões) na Scopus
    Achievement of Virtual and Real Objects Using a Short-Term Motor Learning Protocol in People with Duchenne Muscular Dystrophy: A Crossover Randomized Controlled Trial
    (2018) MASSETTI, Thais; FAVERO, Francis Meire; MENEZES, Lilian Del Ciello de; ALVAREZ, Mayra Priscila Boscolo; CROCETTA, Tania Brusque; GUARNIERI, Regiani; NUNES, Fatima L. S.; MONTEIRO, Carlos Bandeira de Mello; SILVA, Talita Dias da
    Objective: To evaluate whether people with Duchenne muscular dystrophy (DMD) practicing a task in a virtual environment could improve performance given a similar task in a real environment, as well as distinguishing whether there is transference between performing the practice in virtual environment and then a real environment and vice versa. Methods: Twenty-two people with DMD were evaluated and divided into two groups. The goal was to reach out and touch a red cube. Group A began with the real task and had to touch a real object, and Group B began with the virtual task and had to reach a virtual object using the Kinect system. Results: ANOVA showed that all participants decreased the movement time from the first (M=973 ms) to the last block of acquisition (M=783 ms) in both virtual and real tasks and motor learning could be inferred by the short-term retention and transfer task (with increasing distance of the target). However, the evaluation of task performance demonstrated that the virtual task provided an inferior performance when compared to the real task in all phases of the study, and there was no effect for sequence. Conclusions: Both virtual and real tasks promoted improvement of performance in the acquisition phase, short-term retention, and transfer. However, there was no transference of learning between environments. In conclusion, it is recommended that the use of virtual environments for individuals with DMD needs to be considered carefully.
  • article 8 Citação(ões) na Scopus
    Improvements in motor tasks through the use of smartphone technology for individuals with Duchenne muscular dystrophy
    (2017) CAPELINI, Amila Miliani; SILVA, Talita Dias da; TONKS, James; WATSON, Suzanna; ALVAREZ, Mayra Priscila Boscolo; MENEZES, Lilian Del Ciello de; FAVERO, Francis Meire; CAROMANO, Fatima Aparecida; MASSETTI, Thais; MONTEIRO, Carlos Bandeira de Mello
    Background: In individuals severely affected with Duchenne muscular dystrophy (DMD), virtual reality has recently been used as a tool to enhance community interaction. Smartphones offer the exciting potential to improve communication, access, and participation, and present the unique opportunity to directly deliver functionality to people with disabilities. Objective: To verify whether individuals with DMD improve their motor performance when undertaking a visual motor task using a smartphone game. Patients and methods: Fifty individuals with DMD and 50 healthy, typically developing (TD) controls, aged 10-34 years participated in the study. The functional characterization of the sample was determined through Vignos, Egen Klassifikation, and the Motor Function Measure scales. To complete the task, individuals moved a virtual ball around a virtual maze and the time in seconds was measured after every attempt in order to analyze improvement of performance after the practice trials. Motor performance (time to finish each maze) was measured in phases of acquisition, short-term retention, and transfer. Results: Use of the smartphone maze game promoted improvement in performance during acquisition in both groups, which remained in the retention phase. At the transfer phases, with alternative maze tasks, the performance in DMD group was similar to the performance of TD group, with the exception of the transfer to the contralateral hand (nondominant). However, the group with DMD demonstrated longer movement time at all stages of learning, compared with the TD group. Conclusion: The practice of a visual motor task delivered via smartphone game promoted an improvement in performance with similar patterns of learning in both groups. Performance can be influenced by task difficulty, and for people with DMD, motor deficits are responsible for the lower speed of execution. This study indicates that individuals with DMD showed improved performance in a short-term motor learning protocol using a smartphone. We advocate that this technology could be used to promote function in this population.