Functional training rehabilitation in a latin dance injury / Reabilitação com treinamento funcional em lesão ocasionada por dança latina / Rehabilitación con entrenamiento funcional en lesión causada por danza latina

ABSTRACT Introduction: Latin dance is an emerging sport with rapid popularization in China. Along with the increase of world competitions in Latin dance, its rules are in constant progress demanding high motor coordination and balance skills from the athlete. In an attempt to keep up with the quality required by international competitions, rehabilitation must also be innovated. Objective: Explore the application of functional rehabilitation training to ankle injuries in Latin dance dancers. Methods: 65 athletes from a Latin dance club were selected as subjects and divided into research and control groups, with 33 and 32, respectively. The control group received the same daily training, while the study group was added a specific protocol involving rehabilitation with functional training. Functional indices were categorized, subjective analysis and pain were collected before and after the intervention. Results: The results showed that the pain score of the study group went from 5.71±0.49 to 2.21±0.19, while the control group started with 5.69±0.41 ending at 4.78±0.31 after training. There was no significant difference in the visual analog pain scale score between the two groups before training (P > 0.05). Conclusion: Functional training rehabilitation can improve the rate of exercise in ankle injuries on Latin dance practitioners. Evidence Level II; Therapeutic Studies - Investigating the result.

RESUMO Introdução: A dança latina é um esporte emergente com rápida popularização na China. Juntamente com o aumento das competições mundiais de dança latina, suas regras de estão em constante progresso exigindo altas habilidades de coordenação motora e equilíbrio do atleta. A reabilitação também deve ser inovada para acompanhar a qualidade requerida pelos padrões das competições internacionais. Objetivo: Explorar a aplicação do treinamento de reabilitação funcional em lesões no tornozelo de dançarinos da dança latina. Métodos: 65 atletas de um clube de dança latina foram selecionados como sujeitos e divididos em grupos de pesquisa e grupos de controle, com 33 e 32, respectivamente. O grupo de controle recebeu o mesmo treinamento cotidiano, enquanto ao grupo de estudo foi acrescentado um protocolo específico envolvendo reabilitação com treinamento funcional. Índices funcionais foram categorizados e análise subjetiva e dor também foi coletada antes e após a intervenção. Resultados: Os resultados mostraram que a pontuação da dor do grupo de estudo foi de 5,71±0,49 para 2,21±0,19, enquanto o grupo de controle iniciou com 5,69±0,41 finalizando em 4,78±0,31 depois do treinamento. Não houve diferença significativa na pontuação da escala visual analógica de dor entre os dois grupos antes do treinamento (P > 0,05). Conclusão: A reabilitação com treinamento funcional pode melhorar a taxa de reabilitação para exercícios no público praticante de dança latina com lesões no tornozelo. Nível de evidência II; Estudos Terapêuticos - Investigação de Resultados.

RESUMEN Introducción: El baile latino es un deporte emergente con una rápida popularización en China. Junto con el aumento de las competiciones mundiales de bailes latinos, sus reglas están en constante progreso exigiendo al atleta una gran coordinación motora y habilidades de equilibrio. La rehabilitación también debe ser innovadora para estar a la altura de la calidad exigida por las normas de las competiciones internacionales. Objetivo: Explorar la aplicación del entrenamiento de rehabilitación funcional en las lesiones de tobillo en los bailarines de danza latina. Métodos: Se seleccionaron 65 atletas de un club de baile latino como sujetos y se dividieron en grupos de investigación y de control, con 33 y 32, respectivamente. El grupo de control recibió el mismo entrenamiento diario, mientras que al grupo de estudio se le añadió un protocolo específico de rehabilitación con entrenamiento funcional. Se clasificaron los índices funcionales y también se recogió el análisis subjetivo y el dolor antes y después de la intervención. Resultados: Los resultados mostraron que la puntuación de dolor del grupo de estudio pasó de 5,71±0,49 a 2,21±0,19, mientras que el grupo de control empezó con 5,69±0,41 y terminó con 4,78±0,31 después del entrenamiento. No hubo diferencias significativas en la puntuación de la escala analógica visual del dolor entre los dos grupos antes del entrenamiento (P > 0,05). Conclusión: La rehabilitación con entrenamiento funcional puede mejorar el índice de rehabilitación para el ejercicio en practicantes de baile latino con lesiones de tobillo. Nivel de evidencia II; Estudios terapéuticos - Investigación de resultados.

Facile preparation of magnetic porous carbon monolith from waste corrugated cardboard box for solar steam generation and adsorption.

Porous carbon monoliths (PCMs) were prepared from waste corrugated cardboard box (WCCB) via slurrying in FeCl3 solution followed by molding and thermal treatment. The thermal process was analyzed by a thermogravimetric analyzer coupled with a Fourier transform infrared spectrometer. The evolution of physicochemical characteristics of PCMs was studied. The photothermal conversion and solar steam generation performances of the optimal sample (PCMFe/600) were evaluated. The adsorption properties of PCMFe/600 for methylene blue (MB) were investigated. Results showed that Fe3+ promoted the breaking of cellulose chains in WCCB, leading to the occurrence of pyrolysis of WCCB at lower temperatures and the reduction of activation energy by 76.63 kJ mol-1. Char yield raised because volatile radicals were captured by FeCl3-derived amorphous Fe(III) species, then involved in char formation. Amorphous Fe(III) continuously converted into Fe3O4 crystallites with carbonization temperature increasing from 400 to 700 °C, then α-Fe was formed at 800 °C via the carbothermal reduction of Fe3O4. FeCl3 was favorable to the formation of a developed microporous structure. Surface area significantly increased with carbonization temperature increasing from 400 to 600 °C due to the removal of volatiles. The etching of carbon by Fe3O4 above 700 °C also led to the increase of surface area. PCMFe/600 exhibited higher optical absorption than other samples due to its high graphite degree and porosity. It also had excellent photothermal performance; thus, solar steam yield was 1.46 times that of the pure water with the assistance of PCMFe/600. PCMFe/600 in floating state was effective in adsorption of MB from water. Besides, the adsorption behavior fitted Langmuir model with a monolayer adsorption capacity reached up to 70.9 mg g-1.

3D carbon aerogel from waste corrugated cardboard as a photothermal reservoir for solar steam generation.

Three-dimensional carbon aerogel (CA800) was prepared from waste corrugated cardboard (WCC) by the procedure of slurrying, solvent replacement, drying, and carbonization in turn, and the product was explored as an all-in-one evaporator for solar steam generation without bulk water. Carbonization of the precursor was investigated using thermogravimetric analyzer coupled with Fourier transform infrared spectrometer. Results showed that CO2, CO, furfural, and levoglucosan were released during pyrolysis of WCC within the range of 300 to 390 °C, while polymerization of newly formed char between 390 and 580 °C mainly resulted in the formation of CO2 and CO. Both pyrolysis and polymerization reactions can be described by diffusion-controlled mechanisms, and the activation energies were 155.62 and 11.17 kJ mol-1, respectively. CA800 possessed a BET surface area of 210 m2 g-1. Light can be effectively absorbed and converted into heat by CA800, and its surface temperature achieving 73 °C under 1 kW m-2 irradiation. CA800 had outstanding wettability due to the presence of hydrophilic minerals in carbon matrix, and it was able to store as much as 15 times its own weight in water due to its abundant interconnected channels and hierarchical nanopores. Solar-driven water evaporation rate over CA800 achieved 1.72 kg m-2 (normalized to projection area), which was nearly 6 times higher than the value achieved by the bare water system. The photothermal conversion efficiency was calculated to be 118 %, and the overestimated efficiency was caused by the environmental energy gained by the cold evaporation surface of CA800.

Degradation of Rhodococcus erythropolis SY095 modified with functional magnetic Fe3O4 nanoparticles.

Alkali-surfactant-polymer flooding technology is widely employed to extract crude oil to enhance its production. The bacterial strain Rhodococcus erythropolis SY095 has shown high degradation activity of alkane of crude oil. In the past, many treatment strategies have been implemented to reduce oil concentration in wastewater. Previous studies mainly focused on the extracellular products of Erythrococcus rather than its degradation properties. In the current study, we designed an immobilization method to modify the surface of R. erythropolis SY095 with functional Fe3O4 nanoparticles (NPs) for biodegradation of crude oil and separation of the immobilized bacteria after degradation. We characterize the synthesized NPs through various methods, including scanning electron microscope energy-dispersive spectrometer, Fourier transform infrared spectroscopy, X-ray diffraction (XRD) and a vibrating sample magnetometer. We found that the size of the synthesized NPs was approximately 100 nm. Our results showed that R. erythropolis SY095 was successfully coated with functional magnetic NPs (MNPs) that could be easily separated from the solution via the application of an external magnetic field. The coated cells had a high tolerance for heavy metals. Our findings demonstrated that the immobilization of MNPs to bacterial surfaces is a promising approach for the degradation of crude oil.

Preparation of mechanically robust Fe3O4/porous carbon/diatomite composite monolith for solar steam generation.

Mechanically robust Fe3O4/porous carbon/diatomite composite monolith was prepared from waste corrugated cardboard box and diatomite via slurrying in FeCl3 solution, dewatering, molding, and carbonization at 600 °C. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (SEM), N2-adsorption/desorption, Raman spectroscopy, and ultraviolet-visible-near-infrared (UV-Vis-NIR) spectroscopy. The water wettability, photothermal conversion property, and solar steam generation performance of the products were also evaluated. Results showed that the presence of FeCl3 led to the formation of more pores and magnetic Fe3O4 crystallites, while diatomite provided good hydrophilicity for the composite. The product exhibited light absorption above 65% within the wavelength ranging from 200 to1974 nm, and its surface temperature eventually increased by 30 °C under 0.25 sun irradiation due to photothermal effect. Moreover, solar steam yield under 0.25 sun irradiation for 3600 s was improved by 67% with the presence of the monolithic composite because of the occurrence of interfacial solar steam generation and heat transfer from the composite acted as a heat island.

Evaluation of degradation behavior over tetracycline hydrochloride by microbial electrochemical technology: Performance, kinetics, and microbial communities.

Tetracycline hydrochloride (TCH), as a typical antibiotic-pollutant, is desired to enhance its removal from public environment, due to its toxicity and persistence. Microbial electrochemical technology (MET) is a series complex microorganisms-driven processes with characteristics of simultaneous wastewater treatment and electricity generation. The study was presented to evaluate the TCH removal behavior and power generation performance through the co-metabolism under constant glucose with different TCH concentrations using MET. It was found that the TCH removal efficiency arrived at 40% during the first 6 h, when TCH concentrations ranged from 1 to 50 mg/L. It was interesting that TCH degradation rate increased to a maximum of 4.15 × 10-2 h-1 with its concentrations varying from 1 to 20 mg/L, however, the further increase to 50 mg/L in TCH concentration resulted in a reverse 66% reduction. In the meantime, the generated bioelectricity declared a similar fluctuation trend with a maximum power density of 600 mW/m2 under the condition of 20 mg/L TCH co-degradation with glucose. What's more, the TCH inhibition effect fitted well with Haldane's model, indicating that the microbial electrochemical system had a better potency toward TCH toxicity than that reported (EC50 = 2.2 mg/L). Thauera as mainly functional aromatics-degrading bacteria and Bdellovibrio against bacterial pathogens, only existed in the mixed cultures with TCH and glucose, indicating extremely remarkable changes in bacterial community with TCH addition. In summary, a new approach for the anaerobic biodegradation of TCH was explored through co-metabolism with glucose using MET. The results should be useful for antibiotics wastewater disposal of containing TCH.

Comparative analysis of rhamnolipid congener synthesis in neotype Pseudomonas aeruginosa ATCC 10145 and two marine isolates.

A comparative study of rhamnolipid congener synthesis was performed using the neotype Pseudomonas aeruginosa ATCC 10145 and two marine isolates (1A01151 and 1A00364). Compared with the neotype, 1A01151 and 1A00364 showed increased production of rhamnolipids containing higher proportion of congeners with longer fatty acid chains (C10-C12 and C10-C12:1) and/or di-rhamnose moiety. These could reduce surface tension of water to lower minimum values of 21.3 mN m-1 and 25.7 mN m-1. The comparative profile of rhamnolipid congener composition, fatty acid content and gene expression suggested that elevated expression of rhlAB and rhlC throughout the fermentation process and enhanced accumulation of dTDP-l-rhamnose and fatty acid precursors (C12 and C12:1) at the onset of rhamnolipid accumulation were related to improved rhamnolipid production and surface-active property. This work provides insights into the metabolic relationship between rhamnolipids and related precursor biosynthesis, and could therefore be beneficial for process optimization for efficient rhamnolipid congener production.