The Feasibility Usability and Effectiveness of Fully Immersive Horticultural-based Virtual Reality Cognitive Training for Community-dwelling Elderly

The digit symbol test involves a key consisting of the numbers 1-9, each paired with a unique, easy-to-draw symbol such as a "V", "+" or ">".

Matrix Reasoning

This is a nonverbal reasoning task in which individuals are asked to identify patterns in designs. This subtest measures:

non-verbal reasoning skills broad visual intelligence perceptual organization skills

The short (12-item) form of the Everyday Cognition Scale (ECog-12), which was developed as an informant-rated report of cognitively mediated functional abilities in older adults. The ECog-12 asks participants to rate their current ability to perform cognitively mediated daily tasks related to everyday memory, language, visuospatial abilities, and executive functions compared with their ability to do the same task 10 years ago. Items are rated on a scale of 1-4, with 1 = Better or no change and 4 = Consistently much worse. The global, executive, and memory ECog-12 sub-domain scores were generated by averaging over the component items (sum of items/number of items) to maintain a range of 1 to 4 (with higher scores reflecting greater self-reported SCD).

The Amsterdam Instrumental Activity of Daily Living (A-IADL) is an adaptive and computerized questionnaire designed to assess impairments in instrumental activities of daily living (IADL) in (early) dementia. The questionnaire is completed by a caregiver, such as a relative or friend.

Each item has a 5-point scale response option (scored 0-4). The scoring of the Amsterdam Instrumental Activity of Daily Living is calculated using item response theory .Lower scores indicating poorer performance.

The World Health Organization Quality of Life-Old questionnaires demonstrate acceptable psychometric performance in a convenience sample of Taiwan older people. It are valuable measures of Quality of Life-Old for use with older people.Time frame for assessment is the past two weeks.

The items are distributed into 4 domains (physical; psychological, social and environmental health) and 25 facets.

As with the standard WHOQOL-BREF questionnaires the WHOQOL-BREF Taiwan version was simplified from the WHOQOL long form for Taiwan. For the purpose of cross-cultural comparison, the first 26 items were the same as the standard WHOQOL-BREF, which was developed from global studies. In addition to the 26 items, we applied the psychometric criteria proposed by the WHOQOL Group to select two more items from each of the two new facets to form the WHOQOL-BREF Taiwan version using data from the same 1,068 subjects. The selection process used for national items is described in the Results section. Thus, the WHOQOL-BREF Taiwan version contains 28 items classified into the same four domains as the standard WHOQOL-BREF. The scale administration and scoring procedures are the same as for the WHOQOL long form except that the facet score is based on only one item.

The community integration questionnaire (CIQ) was designed to assess home integration, social integration and productive activity in persons with acquired brain injury. The instrument consists of 15 items and can be completed by self report or with the assistance of a family member or caregiver familiar with the person's health status and social activities.

The Geriatric Depression Scale (GDS) - 15 items version is a self-administered questionnaire used to evaluate mood and depressive symptoms. The scores range is 0-15 and a score of 5 or greater taken as a possible indicator of depression.

It comprised eight open-ended questions focusing on the meaning and interpretation of 'subjective well-being', e.g., 'Can you tell me what the important contributors to your well-being are?', 'Can you describe the important elements in your life that make you feel happy?', 'Can you describe the important elements in your life that you dislike?' and 'What does well-being personally mean to you?' To adapt the Aging Well Profile for a Chinese population in Taiwan was secured. It was agreed that the new version would be called the Chinese Aging Well Profile (CAWP).

The TUG assesses the dynamic balance ability and mobility. The participants will be required to stand up from a chair, walk 3 meters, turn around, walk back to the chair, and sit down. The time to complete the TUG test has been shown to be a good indicator to detect potential fallers in frail elderly . The test-retest reliability of TUG on individuals with cognitive impairment was excellent .

The 30 second sit-to-stand will be assessed to indicate the strength and endurance level of the lower extremities. The 30 second sit-to-stand was standardized to allow hand support during the rise to and descent from standing but required participants to let go of the armrests with each stand. The participants will be asked to stand up from a standardized chair and then sit down as many times as possible within 30 seconds. The feasibility and reliability of using sit-to-stand test in people with cognitive impairment have been established to be good.

The Short Physical Performance Battery (SPPB) is an objective assessment tool for evaluating lower extremity functioning in older persons. The short physical performance battery (SPPB) is a group of measures that combines the results of the gait speed, chair stand and balance tests . It has been used as a predictive tool for possible disability and can aid in the monitoring of function in older people. The scores range from 0 (worst performance) to 12 (best performance). The SPPB has been shown to have predictive validity showing a gradient of risk for mortality, nursing home admission, and disability.

The Chinese version of the International Physical Activity Questionnaires (IPAQ) is an international measure for health-related physical activity. A short form of IPAQ will be used to assess changes in physical activity before and after intervention in this study. The reliability and validity of IPAQ has been established across 12 countries .

The self-report, short-form IPAQ , consists of three questions about days and time of vigorous, moderate, and walking activity in bouts of 10 min, with one question about daily sedentary time in the preceding seven days. The questionnaire was preceded by completion instructions and three questions about the types of vigorous, moderate, and light activity undertaken .

The aim of this scoping review is to identify and document the nature and extent of research evidence related to the Clinical Frailty Scale (CFS). The association of Clinical Frailty Scale (CFS) score with clinical outcomes highlights its utility in the care of the aging population.

The Clinical Frailty Scale (CFS) is a judgement-based frailty tool that evaluates specific domains including comorbidity, function, and cognition to generate a frailty score ranging from 1 (very fit) to 9 (terminally ill).

Reported Edmonton Frail Scale is an adaptation of Edmonton Frail Scale, that can be performed in less than 10 min by any healthcare professional. Reported Edmonton Frail Scale substitutes the last domain on Edmonton Frail Scale, the physical performance measure, with three self-assessed physical performance questions . This is ideal for use in busy cardiology clinics when patients are being assessed for suitability for intervention.Scoring for the Reported Edmonton Frail Scale range is 0 to18. Not Frail：0-5 ;Apparently Vulnerable：6-7; Mildly Frail：8-9;Moderate Frailty：10-11;Sever Frailty：12-18.