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Neurological examination
The resting tone in the legs is estimated by sensing the resistance when the relaxed subject's leg joints are manipulated.
Stretch reflexes are then evoked by using the tendon hammer, tapping the examiner's own had as it grasps the foot.
Then the plantar reflex is tested by firm upward stroking of the sole of the foot.
The normal response (as here) is an inward curling of the toes; an upward-going big toe - the positive Babinski
sign - would suggest impairment of descending cortical control.
Leg reflexes and tone