A decrease in the ability to perceive vibration in the legs. The phenotype is Impaired vibration sensation in the lower limbs (HP_0002166). Also known as: Decreased lower limb vibratory sense, Decreased vibratory sense in lower limbs, Decreased vibratory sense in the lower extremities, Decreased vibratory sense in the lower limbs, Diminished vibratory sensation in the legs, Distal sensory loss, especially vibratory sense, Distal vibratory impairment of the lower limbs.