Remote balance exercises with sensory feedback

Inclusion criteria: All participant groups inclusion criteria: 1. Age 40-80 years 2. Community dwelling able to walk 500-m independently or with a stick 3. Depression Scale on Hospital Anxiety and Depression Scale should be less than 10/21 4. No significant visual impairment (as self-reported by participants) 5. Participants must show willing to comply with study and with capacity to consent. 5. No acute musculoskeletal or other injuries that would prevent participant in a structured exercise program. 6. Is not currently and has not received any falls/balance/vestibular and/or cognitive rehabilitation in the past 8-weeks. 7. Has not received a diagnosis of more than one of the study disease cohorts (Stroke, MCI, Vestibular Disorder) 8. Does not have any other co-existing neurological conditions (ie. Multiple sclerosis, Parkinson's disease, neuropathy etc.) 9. Does not have any language or communication deficits impairing their ability to communicate and/or express their thoughts 10. Has at least one functional hand for grip function and computer use. 9.Fulfilling all the criteria from one of the below sub-groups Inclusion criteria for Stroke: 1. Individuals with new/existing diagnosis of MCI (ICD 10 criteria) as confirmed by a clinical letter. 2. Onset > 6 months prior to study 3. Montreal Cognitive Assessment - MoCA score full version >= 23 (the Montreal Cognitive Assessment is a validated rapid screening test of language, memory, attention, visual/spatial, reasoning, orientation skills) 4. At risk of falls: FGA (Functional Gait Assessment) Score should be equal or less than 22/30 and/or having an episode of falling in the last 12 months 5. If diagnosed with a drop foot, they have a corrective device (AFO, FES etc.) in-place for exercise performance The stroke intervention group will receive TeleRehaB DSS; the Stroke control group will receive OTAGO HEP Inclusion criteria for MCI: 1. Individuals with new or existing formal diagnosis of MCI, according to the International Classification of Disease 10 (ICD10), as confirmed by a clinical letter. 2. At risk of falls: FGA (Functional Gait Assessment) Score should be equal or less than 22/30 and/or having an episode of falling in the last 12 months The MCI intervention group will receive TeleRehaB DSS; the MCI control group will receive OTAGO HEP. Inclusion criteria for Vestibular Disorders: 1. Individuals with diagnosis of a peripheral and/or mixed (peripheral and central) vestibular disorder as confirmed by a clinical letter: - Peripheral vestibular disorder in which the balance problem lies in the vestibular/balance system within the inner ear. - Mixed vestibular disorder in which the balance problem lies in the vestibular/balance system within the inner ear (peripheral) and involving the nerves or neuronal network in the brain/brainstem responsible for balance (central). 2. Chronic dizziness and/or unsteadiness (self-report by the patient; duration >3 months) that started at the time or after the vestibular disorder diagnosis. 3. Montreal Cognitive Assessment - MoCA score full version >= 23 (the Montreal Cognitive Assessment is a validated rapid screening test of language, memory, attention, visual/spatial, reasoning, orientation skills) 4. Dizziness handicap inventory (DHI >34) AND/OR At risk of falls (FGA <22/30) The vestibular intervention group will receive TeleRehab DSS; the vestibular control group will receive vestibular Exclusion criteria: If a participant presents with any of the exclusion criteria throughout the onboarding and or intervention period, they will be withdrawn as deemed ineligible. - Outside of the stated age bracket. - Unable to walk independently even with use of a walking stick. - MoCA score less than 23 for Stroke and Vestibular dysfunction cohorts. - Score of 10 or higher on depression subscale of HADS. - Unwilling to comply with study procedures, proposed training and testing regime. - No capacity to consent. - Significant visual impairment, or homonymous hemianopia, or visual spatial neglect (stroke cohort only) (self-reported). - Uncontrolled hypertension. - Other neurological problem (for example, Parkinsons disease, Multiple Sclerosis, etc.). - Language and communication deficits impairing ability to express thoughts (for example, Aphasia). - Has participated in a clinical drug trial in the past 6 months. - Acute musculoskeletal injury that prevents participation in a structured exercise program (for example, lower limb fracture). - Has an implanted electrical medical device or cardiac pacemaker. - Diagnosis of unstable Menieres or with more than 4 migraines per month at the time of participating in the study. - Not fulfilling the inclusion criteria for one of the subgroups (such as criteria for Stroke group, or MCI group, or chronic vestibular disorder group, or long Covid group) as outlined above. - Has received a diagnosis of more than one of the study disease cohorts (Stroke, MCI, Vestibular Disorder, Long Covid). - Unable to provide a clinical letter confirming diagnosis.