Skip to main content

Advertisement

Table 3 Cut-off values for NH, FL and LAA

From: Classification of the height and flexibility of the medial longitudinal arch of the foot

Maximum values n = 254
Test Severely low arch Low arch Normal High arch Severely high arch
NH (cm) < 2.7 2.7 to 3.5 3.6 to 5.5 5.6 to 6.4 > 6.4
FL (cm) < -3.3 -3.3 to -2.5 -2.6 to -1.2 -1.3 to -0.4 > -0.4
LAA (°) < 121 121 to 130 131 to 152 153 to 162 > 162
Range of motion values n = 254
Test Very flexible Flexible Normal Rigid Very rigid
ND (cm) > 2.3 2.3 to 1.8 1.8 to 0.6 0.6 to 0.0 < 0.0
FL (cm) > 1.3 1.3 to 0.9 0.9 to -0.1 -0.1 to -0.6 < -0.6
LAA (°) > 19 19 to 13 13 to -1 -1 to -7 < -7
  1. Cut-off values of the medial longitudinal arch maximum values and range of motion values without taking into account the association between the variables included in the regression models with NH, FL, and LAA. In relation to maximum values and range of motion values, the normal categories were defined by the 68% prediction limit cut-offs. Low arch and high arched feet as well as flexible and rigid feet were categorized based on the 95% prediction limit cut-offs. NH: navicular height; FL: Feiss line; LAA: Longitudinal arch angle