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Previous issue date: 1999 / Os autores estudaram o efeito dos saltos altos, em dez individuos normais do sexo feminino, quanto a distribuicao do pico de pressao maxima, impulso vertical, analise temporal do passo, velocidade e localizacao do baricentro (COP), utilizando o baropodometro F-Scan© ( Tekscan, Boston, MA). Para esse fim, foram confeccionados calcados de forma e material identicos, com as seguintes alturas de saltos: S1 (3,0 cm), S2 (6,0 cm) e S3 (9,6 cm). O exame foi realizado em quatro diferentes situacoes: descalco (SO), com uso do S1, S2 e S3. A analise dos resultados demonstrou que os picos de pressao maxima na planta dos pes e reduzida com o uso de calcados. A analise isolada dos niveis pressoricos nas plantas dos pes nao constitui metodo seguro para determinacao de condicao de risco para integridade dos pes. Com a utilizacao dos saltos altos, aumentou a concentracao dos picos de pressao maxima na regiao do halux e sob a cabeca do I metatarsico e aumenta significantemente a duracao total do passo, principalmente em virtude do aumento de atividade do mediope, enquanto a fracao do retrope se reduz e a do antepe nao se altera. O uso de calcados de saltos altos, determinou o aumento do impulso vertical na planta dos pes. Com a elevacao dos saltos ha reducao da velocidade de deslocamento do COP na regiao do mediope acompanhada de aumento da velocidade do COP no retrope. A velocidade do COP no antepe, independente da altura do salto, se manteve constante. O aumento na altura dos saltos determinou a centralizacao e retificacao da trajetoria do baricentro na planta dos pes / The authors studied the effects of high heels in ten normal female individuals, as to the distribution of the maximum peak pressure, vertical impulse, time analysis of the step, speed and location of the centre of pressure (COP), using the F-Scan (Tekscan, Boston, MA) baropodometre.
Special shoes, with identical form and materials, were manufactured to this purpose, with heels heights of 3.0 cm (S1), 6.0 cm (S2) e 9.6 cm (S3).
The measurement were performed on four different conditions: barefoot (S0), S1, S2, and S3.
The results showed that the maximum peak pressure are reduced by means of using shoes. The isolated analysis of pressure levels on the foot soles does not constitute a safe method for the determination of the "foot at risk" condition. Using high heels the maximum peak pressure showed a concentration increment under the hálux and under head of the first metatarsal, augmenting significantly the total step time, especially due to the overload of the midfoot, while an underload of the rearfoot, with no change in the forefoot was observed.
The use of high heel shoes determined are increment of the vertical impulse. By elevating the heels, the COP is showed at the midfoot, accompanied by a faster COP at the rearfoot. The speed of the COP at the forefoot was constant, regardless of the heel height.
The increment of the heel height caused a "centralization" and "retification" of the trajectory of the COP. / BV UNIFESP: Teses e dissertações
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.unifesp.br:11600/16554 |
| Date | January 1999 |
| Creators | Réssio, Cibele [UNIFESP] |
| Contributors | Universidade Federal de São Paulo (UNIFESP), Nery, Caio Augusto de Souza [UNIFESP] |
| Publisher | Universidade Federal de São Paulo (UNIFESP) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | 146 p. |
| Source | reponame:Repositório Institucional da UNIFESP, instname:Universidade Federal de São Paulo, instacron:UNIFESP |
| Rights | info:eu-repo/semantics/openAccess |
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