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The objective of this narrative review was to discuss whether distance training was able to maintain physiological, cardiovascular and muscular conditions to safe return to elite athletes to their activities, and what risks of injuries they will be submitted to. Considering this unprecedent situation, and the lack of studies that address the possible risks of injury associated with returning to high-performance sports after social isolation we aim to collect such data in the present article. Since December 2019, the world has been affected by a pandemic caused by the new coronavirus. Similar situation had only occurred more a hundred years ago, when the Spanish flu affected Europe around 1918. Although most athletes are likely to experience only mild symptoms as a result of coronavirus infection, preventive strategies are necessary.

Background: Low back pain is one of the most common musculoskeletal problems among workers. Studies estimate that 90% of the adults will suffer at least one episode of low back pain in life that will lead to the temporary interruption of work. A type of exercise that has gained increasing popularity among individuals with low back pain in the last decade is the Pilates method. Objective: Determine the influence of the Pilates method on improvements in pain, kinesiophobia, central sensitization and function in patients with chronic nonspecific low back pain. Methods: Thirty-four male and female volunteers between 18 and 35 years of age with a complaint of nonspecific low back pain for at least three months will be divided into two groups: Pilates method and control group. An evaluation chart created by the authors will be used to collect data on personal information, history of diseases, alcohol use, smoking, pain intensity (visual analog scale) and medications used. The Tampa Scale for Kinesiophobia, Central Sensitization Questionnaire and Oswestry Disability Index will also be administered. Pilates exercises will be performed three time per week for four weeks and administered by a researcher with adequate training in the method. Reevaluations will be performed after the sixth treatment session in the Pilates group, two weeks after the initial evaluation in the control group, after the 12th session in the Pilates group and after four weeks in the control group. Another reevaluation will be performed three months after treatment. Results: The data will be submitted to statistical analysis and the level of significance will be set to 5%. Conclusion: Based on the results analyzed it will be possible to determine the influence of Pilates Method on improvements in pain, kinesiophobia, central sensitization and function in patients with chronic nonspecific low back pain.

Introduction The wobble board (WB) is an unstable platform that allows proprioceptive balance training. However, because it is a passive device, it does not provide quantitative data about the training, making it difficult for the therapist to track their patients' performance. The aim of this study was to develop and validate a supervisory system and the data acquisition based on hardware (WB) and software (control app) elements that allow the dynamic balance evaluation. Methods An electronic system was placed on a WB. Its tilt was measured using an accelerometer. A supervisory system, capable of calculating the mass distribution (MD) and the center of pressure (CoP), was developed. Firstly, in order to validate the system, a functional test was performed; then, thirty volunteers were submitted to the test protocol approved by the research ethic committee of the University of Mogi das Cruzes. Results The results of the functional tests showed that the supervisory system was able to correctly calculate the MD and the CoP. In the test with volunteers, no significant difference was observed between the tests with and without visual feedback of the balance oscillation. Conclusion The developed system is portable and capable of storing data for future analysis. The combination of the tilt's, MD's, and CoP's values generated a detailed analysis of the exercises performed, allowing the therapist to track the performance of the patients and adapt the exercise to their needs, making the treatment using the WB more effective.

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