The SNAG group received a treatment based on sustained apophyseal glides in a postero-anterior direction on C2 with a dose of three series of ten repetitions each, combined with active cervical extension.

The placebo SNAG group received a simulation of the contact used for the SNAGs, without any vertebral glide, and with an active cervical extension.

The control group did not receive any type of intervention, they only waited for four minutes, sat down on a chair

It consists on a sustained apophyseal glides in a postero-anterior direction on C2 with a dose of three series of ten repetitions each

Detection of peripheral vestibular deficits and their recovery

state-trait anxiety was measured at the beginning of the study using the Spanish version of the trait-state anxiety inventory (STAI)