ABSTRACT
O ballet clássico é uma forma de dança tradicional que utiliza a ponta como posição básica, com o pé em posições extremas, predispondo-o à diversas alterações morfológicas. O objetivo deste estudo foi analisar as impressões plantares de praticantes de ballet clássico, e correlacionar o tipo de pé com o tempo de prática de ballet e o tempo de uso de sapatilha de ponta. A amostra foi composta por 34 praticantes de ballet, do gênero feminino, de escolas de dança no município de Mineiros e Goiânia em Goiás. As variáveis registradas foram sexo, idade, tempo de prática de ballet e tempo de uso de sapatilha de ponta, medida do Índice de Massa Corporal (IMC) e avaliação da impressão plantar através da plantigrafia e baropodometria. A média de idade das praticantes foi de 18,05ï±9,39 anos, média do IMC de 18,79 kg/m2, 10,45ï±7,68 anos em média de tempo de prática de ballet, e média de 5,36ï±5,69 anos do tempo de uso de sapatilha de ponta. Análise geral das 68 impressões plantares apontou predomínio de pés planos. Quando a análise foi feita individualmente por pés, direito e esquerdo, evidenciou predomínio de pés planos e cavos, respectivamente. Os achados baropodométricos demonstraram maior pressão e área plantar nos pés do lado direito (quadrante anterior) e distribuição de pressão semelhante em ambos os pés. Não foi observada correlação significativa entre os tipos de pés e o tempo de prática de ballet clássico, e o tempo de uso de sapatilha de ponta. Estudos futuros podem contribuir para um consenso sobre os tipos de alterações encontradas nessa modalidade de dança...(AU)
Classic ballet is a traditional form of dance that uses the pointe as the basic position, with the foot in extreme positions, predisposing it to morphological changes. The objective of this study were to analyze the footprints of classic ballet practicers, and correlate the foot type with the practice time of ballet and time of use of pointe shoe. The sample consisted of 34 ballet dancers coming from dance schools in the cities of Goiania and Mineiros, state of Goias, Brazil. The personal characteristics recorded were sex, age, length of time practicing ballet and the use of pointe shoe, so as the Body Mass Index (BMI) and evaluation of footprints through plantigraphy and baropodometry. The average age of the ballet practicers was 18ï±9,39 years, with normative values of body mass, 10ï±7,68 years as the time average of ballet practice, and a time average of 5ï±5,69 years regarding the use of pointe shoes. An overview of the 68 footprints pointed prevalence of flat feet. Individual analysis of the feet, right and left, revealed a predominance of flat feet and cavus, respectively. The baropodometric findings demonstrated greater pressure on the feet and plantar area of the right side (anterior quadrant) and similar distribution of pressure on both feet. No significant correlation was observed between the types of feet and practice time of classic ballet, neither with the time of use of the pointe shoe. Future studies may contribute to a consensus about the types of changes found in this type of dance...(AU)
Subject(s)
Humans , Female , Adolescent , Dancing , Dermatoglyphics , Talipes Cavus , Efficiency , PostureABSTRACT
OBJECTIVE: This study aimed to investigate the effect of 830 and 670 nm diode laser on the viability of random skin flaps in rats. BACKGROUND DATA: Low-level laser therapy (LLLT) has been reported to be successful in stimulating the formation of new blood vessels and reducing the inflammatory process after injury. However, the efficiency of such treatment remains uncertain, and there is also some controversy regarding the efficacy of different wavelengths currently on the market. MATERIALS AND METHODS: Thirty Wistar rats were used and divided into three groups, with 10 rats in each. A random skin flap was raised on the dorsum of each animal. Group 1 was the control group, group 2 received 830 nm laser radiations, and group 3 was submitted to 670 nm laser radiation (power density=0.5 mW/cm(2)). The animals underwent laser therapy with 36 J/cm(2) energy density (total energy=2.52 J and 72 sec per session) immediately after surgery and on the 4 subsequent days. The application site of laser radiation was one point at 2.5 cm from the flap's cranial base. The percentage of skin flap necrosis area was calculated on the 7th postoperative day using the paper template method. A skin sample was collected immediately after to determine the vascular endothelial growth factor (VEGF) expression and the epidermal cell proliferation index (KiD67). RESULTS: Statistically significant differences were found among the percentages of necrosis, with higher values observed in group 1 compared with groups 2 and 3. No statistically significant differences were found among these groups using the paper template method. Group 3 presented the highest mean number of blood vessels expressing VEGF and of cells in the proliferative phase when compared with groups 1 and 2. CONCLUSIONS: LLLT was effective in increasing random skin flap viability in rats. The 670 nm laser presented more satisfactory results than the 830 nm laser.
