influência da freqüência de alongamento utilizando facilitação neuromuscular proprioceptiva na flexibilidade dos músculos isquiotibiais influencia de la frecuencia de alongamiento utilizando facilitación neuromuscular propioceptiva en la flexibilidad de los músculos isquio tibiales influence of the stretching frequency using proprioceptive neuromuscular facilitation in the flexibility of the hamstring muscles
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Abstract
El uso de maniobras de alongamiento es uno de los recursos más utilizados en la práctica de rehabilitación. Sin embargo, algunos parámetros, como frecuencia, no se estudian cuando se utilizan las técnicas de facilitación neuromuscular propioceptiva (FNP). El objetivo de este estudio ha sido analizar la frecuencia óptima buscando aumentar la flexibilidad de los músculos isquio tibiales, medida por la amplitud activa de extensión de la rodilla. Se seleccionaron 36 individuos del sexo femenino (con edad media (DP) de 21,7 (1,9) años), con limitación de flexibilidad de los músculos isquio tibiales. Los individuos fueron distribuidos aleatoriamente en cuatro grupos (n = 9). Los tres grupos de alongamiento recibieron intervención cinco días por semana durante dos semanas consecutivas. El cuarto grupo que sirvió como control, no fue alongado. Los grupos de alongamiento con FNP variaron en relación a la frecuencia en una, tres y seis maniobras por sesión. Un análisis de varianza (ANOVA) se usó para las medidas iniciales y finales (p < 0,05). En seguida se utilizó un análisis post hoc por medio del test de Tukey (p < 0,05). El análisis estadístico de los datos indicó que los grupos de alongamiento tuvieron incremento de amplitud significativo en relación al grupo control, pero no entre ellos mismos. En relación a la velocidad de incremento, los grupos que utilizaron tres y seis maniobras alongaron (p < 0,05) más rápido que el grupo que utilizó apenas una maniobra. Se concluye, por tanto, que no hay diferencia en relación al incremento tardío cuando se utiliza una, tres, o seis maniobras de alongamiento con la técnica sustentar relajar en los isquios tibiales.
Stretching techniques are one of the most used devices in rehabilitation practice. However, some parameters such as frequency have not been studied when proprioceptive neuromuscular facilitation (PNF) techniques are used. The purpose of this study was to analyze in the short and middle-terms the optimal frequency to increase hamstring muscle flexibility, measured by knee extension range of motion (ROM). Thirty-six female subjects were selected, (mean (SD) age 21.7 (1.9) years) with limited hamstring muscle flexibility. The subjects were randomly assigned to four groups (n = 9). The three stretching groups received the intervention five days a week for two consecutive weeks. The three PNF stretching groups alternated concerning frequency with one, three, and six maneuvers per session. Analysis of variance (ANOVA) was used for the first and final measures (< 0.05). A post hoc analysis using the Tukey test (< 0.05) was performed. Data indicated that the PNF stretching groups had a statistically significant ROM gain in relation to the control group, but not among themselves. Concerning gain velocity, the groups that used three and six maneuvers had faster stretching gains (p < 0.05) than the one that used only one maneuver. The results showed that there was no difference in relation to delayed gains when one, three or six stretching maneuvers were used with the hold-relax technique on hamstring muscles.
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gama2007revistainfluncia
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| Journal | research disclosure |
| Year | 2007 |
| DOI |
10.1590/S1517-86922007000100008
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