Figure 5. Measurement of lumbar spine ROM using the gravity-based inclinometer.

(A)Starting position with the inclinometer was placed on the T₁₂–L₁ spinal level. (B) Maximum flexion was measured at the T₁₂–L₁ spinal level. (C) Maximum extension was measured at the T₁₂–L₁ spinal level. (D) Starting position with the inclinometer was placed on the S₁–S₂ spinal level. (E) Maximum flexion was measured at the S₁–S₂ spinal level. (F) Maximum extension was measured at the S₁–S₂ spinal level.