Static or dynamic stretching program does not change the acute responses of neuromuscular and functional performance in healthy subjects: a single-blind randomized controlled trial / Programa de alongamento estático ou dinâmico não altera as respostas agudas do desempenho neuromuscular e funcional de sujeitos saudáveis: ensaio controlado randomizado e cego / Un programa de estiramientos estáticos o dinámicos no modifica las respuestas agudas del rendimiento neuromuscular y funcional en individuos sanos: ensayo ciego controlado de distribución aleatoria

Abstract The purpose of this study was to compare the effects of a single hamstring static or dynamic stretching session and a 10-session stretching program on the range of motion, neuromuscular performance and functional performance of healthy subjects. Forty-five, healthy, active men were divided into three groups: control; static stretching and dynamic stretching. There were no significant differences in ratings between the experimental and control groups for any of the variables (p > 0.05). It can be concluded that neither a single session of hamstring static or dynamic stretching nor a 10-session stretching program affected range of motion, neuromuscular or functional performance.

Resumo A proposta deste estudo foi comparar os efeitos de uma única sessão de alongamento estático ou dinâmico dos isquiotibias e dez sessões do programa de alongamento na amplitude de movimento e desempenho neuromuscular e funcional de indivíduos saudáveis. Quarenta e cinco homens ativos e saudáveis, foram distribuídos em três grupos: controle, alongamento estático e alongamento dinâmico. Não houve diferença significativa entre os grupos experimentais e controle para todas as variáveis (p >0,05). Pode-se concluir que nem uma única sessão de alongamento estático e dinâmico dos isquiotibiais, nem 10 sessões do programa de alongamento afetaram a amplitude de movimento e o desempenho neuromuscular e funcional.

Resumen El propósito de este estudio fue comparar los efectos de una sola sesión de estiramientos estático o dinámico en los isquiotibiales, y diez sesiones del programa de estiramiento en el rango de movimiento y rendimiento neuromuscular y funcional de individuos sanos. Cuarenta y cinco hombres activos y sanos fueron divididos en tres grupos: control, estiramiento estático y estiramiento dinámico. No hubo ninguna diferencia considerable entre los grupos experimentales y de control respecto a todas las variables (p >0,05). Se puede concluir que ni una sola sesión de estiramiento estático o dinámico de los isquiotibiales ni 10 sesiones del programa de estiramiento afectaron al rango de movimiento ni al rendimiento neuromuscular y funcional.

Intra-rater and Inter-instrument Reliability on Range of Movement of Active Knee Extension

Abstract: The objective of the present study was to evaluate the reliability of intra-rater and inter-instrument measures during two flexibility programs. Fifty-three active and healthy males, aged between 18 and 28 years old, were randomly included in three groups: control (Cg, n = 18), static stretching (SSg, n = 17), and dynamic stretching (DSg, n = 18). All participants underwent measurements of their active range of knee extension using manual goniometry and computerized photogrammetry, measured in four separated assessments and analyzed using the SPSS, with ((5%. Both methodologies presented very strongintra-raterreliability (ICC: 0.91(0.99; P<0.001) at all four assessments in all the groups, and the instruments showed weak (r: 0.31-0.6) to strong(r: 0.61-0.9) correlation, in the Cg (P<0.05) and strong (r: 0.61-0.9) in the SSg and DSg (P<0.01), although without differences between groups, indicating that the measures are equally reliable, regardless of interventions.(AU)