Table 1 Schedule of enrollment and assessments in the INVENT VPT Trial
Study period | ||||
|---|---|---|---|---|
Enrollment/baseline and randomization | Interventions | Follow-up assessments | ||
vHIT | Participative measures | Impairment measures | ||
Eligibility screen Informed consent One-time VOR characterization • Videonystagmography • Ocular and cervical vestibular evoked myogenic potential • Rotary chair • Video head impulse test • Audiogram • Clinical vestibular exam • Static visual acuity • Seated blood pressure Randomization • Treatment intensity  ♦ Dizziness Handicap Inventory  ♦ Gait speed  ♦ Functional gait assessment | Aim I IVE-VPT VPT-IVE 6-week washout | Weeks 1–6 Weeks 13–18 6 months | Weeks 1, 4, 6 Weeks 13, 16, 18 6 months | Weeks 1, 4, 6 Weeks 13, 16, 18 6 months |
Aim II IVE-VPT VPT-IVE 3-week washout | Weeks 1–3 Weeks 7–9 6 months | Weeks 1, 3 Weeks 7, 9 6 months | Weeks 1, 3 Weeks 7, 9 6 months | |
Aim III IVE-VPT VPT-IVE 3-week washout | Weeks 1–3 Weeks 7–9 6 months | Weeks 1, 3 Weeks 7, 9 6 months | Weeks 1, 3 Weeks 7, 9 6 months | |