Comparison of temporal and spatial variation of periphytic algal community in two urban lakes in Umuarama-PR (Brazil)

Water resources are very important for all living organisms, and as being of vital importance need to be preserved. Thus, many water bodies are monitored as an essential strategy for identification of possible alterations over space and time. The analyses were performed in two different hydrological conditions, and water sample and rocks were collected in two different points at each lake. The results showed higher values of Ammoniacal Nitrogen in Aratimbó Lake, mainly during dry period (Ammoniacal Nitrogen = 4.2 mgL-1) at P1. However, P2 at Tucuruvi Lake presented higher concentration of Orthophosphate (2.24 mgL-1). Total Periphyton density also demonstrated variation among the different hydrological scenarios and lakes. The Highest density was of 385.30 10³ ind.cm-2at Aratimbó Lake and 180.43 10³ ind.cm-2at Tucuruvi Lake in rainy condition. Comparing the predominance of species, In Aratimbó Lake, Chlorophyceae class was predominant at P1, while Cyanophyceae class was predominant at P2. In dry period, Bacillarophyceae class was seen as the predominant class for both of lakes and for all sampling points. Differently from Aratimbó Lake, in Tucuruvi Lake Bacillarophyceae class was predominant in both of hydrological scenarios

Smartphone-based evaluation of static balance and mobility in long-lasting COVID-19 patients

BackgroundSARS-CoV-2 infection can lead to a variety of persistent sequelae, collectively known as long COVID-19. Deficits in postural balance have been reported in patients several months after COVID-19 infection. The purpose of this study was to evaluate the static balance and balance of individuals with long COVID-19 using inertial sensors in smartphones.MethodsA total of 73 participants were included in this study, of which 41 had long COVID-19 and 32 served as controls. All participants in the long COVID-19 group reported physical complaints for at least 7 months after SARS-CoV-2 infection. Participants were evaluated using a built-in inertial sensor of a smartphone attached to the low back, which recorded inertial signals during a static balance and mobility task (timed up and go test). The parameters of static balance and mobility obtained from both groups were compared.ResultsThe groups were matched for age and BMI. Of the 41 participants in the long COVID-19 group, 22 reported balance impairment and 33 had impaired balance in the Sharpened Romberg test. Static balance assessment revealed that the long COVID-19 group had greater postural instability with both eyes open and closed than the control group. In the TUG test, the long COVID-19 group showed greater acceleration during the sit-to-stand transition compared to the control group.ConclusionThe smartphone was feasible to identify losses in the balance motor control and mobility of patients with long-lasting symptomatic COVID-19 even after several months or years. Attention to the balance impairment experienced by these patients could help prevent falls and improve their quality of life, and the use of the smartphone can expand this monitoring for a broader population

LESÃO DE LIGAMENTO CRUZADO ANTERIOR EM ATLETAS DE FUTEBOL: UMA REVISÃO INTEGRATIVA

Introduction: Anterior cruciate ligament (ACL) rupture is one of the most prevalent and serious injuries in ball sports, especially in soccer, occurring mainly in non-contact situations. In view of the above, there is a need for a study that seeks to better inform about anterior cruciate ligament surgeries in soccer athletes. Therefore, the aim of this study is to present a solid subject, gathering quality and current articles available in the national and international literature. Materials and methods: This is an integrative literature review. After applying all inclusion and exclusion criteria, a final sample of 6 articles was obtained for the integrative review. Results and discussion: It is said that the incidence of ACL lesions is higher in female athletes when compared to males. Regarding residual laxity in the ACL graft, studies have observed that, in the long term, this problem may worsen the prognosis of patients, increasing the chance of surgical revisions. As for the return of athletes to soccer, it was observed that players who return to the sport have a significantly higher risk of suffering a new knee injury. Conclusion: the articles analyzed suggested that surgical treatment was highly resolutive for ACL injuries.Introducción: La rotura del ligamento cruzado anterior (LCA) es una de las lesiones más frecuentes y graves en los deportes de pelota, principalmente en el fútbol, que se produce principalmente en situaciones en las que no hay contacto. En vista de lo anterior, es necesario un estudio que busque informar mejor sobre las cirugías de rotura del ligamento cruzado anterior en los deportistas de fútbol. Por lo tanto, el objetivo de este estudio es presentar un tema sólido, reuniendo artículos de calidad y actuales disponibles en la literatura nacional e internacional. Materiales y métodos: Se trata de una revisión bibliográfica integradora. Tras aplicar todos los criterios de inclusión y exclusión, se obtuvo una muestra final de 6 artículos para la revisión integradora. Resultados y discusión: Se dice que la incidencia de las lesiones del LCA es mayor en las mujeres deportistas en comparación con los hombres. En cuanto a la laxitud residual en el injerto del LCA, los estudios han observado que, a largo plazo, este problema puede empeorar el pronóstico de los pacientes, aumentando la posibilidad de revisiones quirúrgicas. En cuanto al regreso de los deportistas al fútbol, se observó que los jugadores que vuelven a practicar este deporte tienen un riesgo significativamente mayor de sufrir una nueva lesión de rodilla. Conclusión: los artículos analizados sugieren que el tratamiento quirúrgico es altamente resolutivo para las lesiones del LCA.Introdução: A ruptura do ligamento cruzado anterior (LCA) é uma das lesões mais prevalentes e graves nos esportes com bola, principalmente no futebol, ocorrendo principalmente em situações em que não há contato. Diante do exposto, há necessidade de um estudo que busque informar melhor sobre as cirurgias de lesão do ligamento cruzado anterior em atletas de futebol. Sendo assim, o objetivo do estudo se dá por expor assunto de forma sólida, reunindo artigos de qualidade e atuais disponíveis na literatura nacional e internacional. Materiais e métodos: Trata-se de uma revisão integrativa da literatura. Após aplicação de todos os critérios de inclusão e exclusão, obteve-se uma amostra final de 6 artigos para a revisão integrativa. Resultado e discussão: É dito que a incidência de lesões de LCA é maior em atletas do sexo feminino quando comparada ao sexo masculino. Em relação à frouxidão residual no enxerto de LCA, estudos observaram que, à longo prazo, esse problema pode piorar o prognóstico dos pacientes, aumentando a chance de revisões cirúrgicas. Quanto ao retorno dos atletas ao futebol, observou-se que os jogadores que retornam ao esporte têm um risco significativamente maior de sofrer nova lesão no joelho. Conclusão: os artigos analisados sugeriram que o tratamento cirúrgico foi altamente resolutivo no caso de lesões de LCA.Introdução: A ruptura do ligamento cruzado anterior (LCA) é uma das lesões mais prevalentes e graves nos esportes com bola, principalmente no futebol, ocorrendo principalmente em situações em que não há contato. Diante do exposto, há necessidade de um estudo que busque informar melhor sobre as cirurgias de lesão do ligamento cruzado anterior em atletas de futebol. Sendo assim, o objetivo do estudo se dá por expor assunto de forma sólida, reunindo artigos de qualidade e atuais disponíveis na literatura nacional e internacional. Materiais e métodos: Trata-se de uma revisão integrativa da literatura. Após aplicação de todos os critérios de inclusão e exclusão, obteve-se uma amostra final de 6 artigos para a revisão integrativa. Resultado e discussão: É dito que a incidência de lesões de LCA é maior em atletas do sexo feminino quando comparada ao sexo masculino. Em relação à frouxidão residual no enxerto de LCA, estudos observaram que, à longo prazo, esse problema pode piorar o prognóstico dos pacientes, aumentando a chance de revisões cirúrgicas. Quanto ao retorno dos atletas ao futebol, observou-se que os jogadores que retornam ao esporte têm um risco significativamente maior de sofrer nova lesão no joelho. Conclusão: os artigos analisados sugeriram que o tratamento cirúrgico foi altamente resolutivo no caso de lesões de LCA

Wearable Devices and Smartphone Inertial Sensors for Static Balance Assessment: A Concurrent Validity Study in Young Adult Population

Falls represent a public health issue around the world and prevention is an important part of the politics of many countries. The standard method of evaluating balance is posturography using a force platform, which has high financial costs. Other instruments, such as portable devices and smartphones, have been evaluated as low-cost alternatives to the screening of balance control. Although smartphones and wearables have different sizes, shapes, and weights, they have been systematically validated for static balance control tasks. Different studies have applied different experimental configurations to validate the inertial measurements obtained by these devices. We aim to evaluate the concurrent validity of a smartphone and a portable device for the evaluation of static balance control in the same group of participants. Twenty-six healthy and young subjects comprised the sample. The validity for static balance control evaluation of built-in accelerometers inside portable smartphone and wearable devices was tested considering force platform recordings as a gold standard for comparisons. A linear correlation (r) between the quantitative variables obtained from the inertial sensors and the force platform was used as an indicator of the concurrent validity. Reliability of the measures was calculated using Intraclass correlation in a subsample (n = 14). Smartphones had 11 out of 12 variables with significant moderate to very high correlation (r > 0.5, p < 0.05) with force platform variables in open eyes, closed eyes, and unipedal conditions, while wearable devices had 8 out of 12 variables with moderate to very high correlation (r > 0.5, p < 0.05) with force platform variables under the same task conditions. Significant reliabilities were found in closed eye conditions for smartphones and wearables. The smartphone and wearable devices had concurrent validity for the static balance evaluation and the smartphone had better validity results than the wearables for the static balance evaluation

Data_Sheet_1_Smartphone-based evaluation of static balance and mobility in long-lasting COVID-19 patients.PDF

BackgroundSARS-CoV-2 infection can lead to a variety of persistent sequelae, collectively known as long COVID-19. Deficits in postural balance have been reported in patients several months after COVID-19 infection. The purpose of this study was to evaluate the static balance and balance of individuals with long COVID-19 using inertial sensors in smartphones.MethodsA total of 73 participants were included in this study, of which 41 had long COVID-19 and 32 served as controls. All participants in the long COVID-19 group reported physical complaints for at least 7 months after SARS-CoV-2 infection. Participants were evaluated using a built-in inertial sensor of a smartphone attached to the low back, which recorded inertial signals during a static balance and mobility task (timed up and go test). The parameters of static balance and mobility obtained from both groups were compared.ResultsThe groups were matched for age and BMI. Of the 41 participants in the long COVID-19 group, 22 reported balance impairment and 33 had impaired balance in the Sharpened Romberg test. Static balance assessment revealed that the long COVID-19 group had greater postural instability with both eyes open and closed than the control group. In the TUG test, the long COVID-19 group showed greater acceleration during the sit-to-stand transition compared to the control group.ConclusionThe smartphone was feasible to identify losses in the balance motor control and mobility of patients with long-lasting symptomatic COVID-19 even after several months or years. Attention to the balance impairment experienced by these patients could help prevent falls and improve their quality of life, and the use of the smartphone can expand this monitoring for a broader population.</p