Root value of achilles reflex ?
The Achilles reflex checks if the S1 and S2 nerve roots are intact and could be indicative of sciatic nerve pathology . It is classically delayed in hypothyroidism . This reflex is usually absent in disk herniations at the L5--S1 level. A reduction in the ankle jerk reflex may also be indicative of peripheral neuropathy ref - pubmed.com
L1,L2
L3,L4
S3, S4
S1,S2
Lower limb