Chronic effects of a static stretching intervention program on range of motion and tissue hardness in older adults

The results showed that the 10-week SS intervention program significantly increased DF ROM (+9°, <i>p</i> < 0.01, Cohen's <i>d</i> = 1.37) and decreased tissue hardness (-0.9, <i>p</i> = 0.04, Cohen's <i>d</i> = -0.27). However, there was no significant correlation between these changes (<i>r</i> = 0.086, <i>p</i> = 0.561). The results of this study suggest that a 10-week SS intervention program can effectively increase DF ROM and decrease tissue hardness but that the increase in DF ROM is related to stretch tolerance rather than changes in tissue hardness.