adult 1 article 1 balance 1 cerebellar vermis 1 cerebellum vermis 1 clinical article 1 controlled study 1 cortical excitability 1 female 1 functional near-infrared spectroscopy 1 human 1 human experiment 1 intermittent theta-burst stimulation 1 leg 1 male 1 oxygen blood level 1 oxygen concentration 1 pilot study 1 sitting 1 supplementary motor area 1 transcrancial magnetic stimulation (TMS) transcranial magnetic stimulation 1