Nerve rootStrengthSensationReflex
L2IliopsoasAnterior thigh, groinNone
L3QuadricepsAnterior/lateral thighPatellar
L4Quadriceps, ankle dorsiflexion (heel walking)Medial ankle/footPatellar
L5*First toe dorsiflexionDorsum of footNone
S1*Ankle plantarflexion (toe walking)Lateral plantar footAchilles