Synovial Sarcoma: Epidemiology, Prognosis, and Imaging in a Tertiary Referral Centre

Effectiveness of virtual reality in preventing falls in non-disabled older adults: A meta-analysis and systematic review

OBJECTIVE

This study was conducted to evaluate the effectiveness of virtual reality interventions in preventing falls among non-disabled older adults.

METHODS

We conducted a librarian-designed database search. Two researchers independently screened eligible studies. The Cochrane Handbook for Systematic Reviews of Interventions was used to assess the risk of bias in the included studies.

RESULTS

Virtual reality interventions can effectively improve gait and dynamic and static balance function, enhance lower limb muscle strength, and reduce the risk of falls in the non-disabled elderly. However, the effect of virtual reality on reducing the fear of falling remains controversial.

CONCLUSION

Virtual reality interventions can effectively prevent falls in nondisabled elderly individuals. Higher quality, larger sample size, and long-term follow-up studies are needed to further verify the long-term effectiveness of virtual reality training in preventing falls in non-disabled elderly individuals.

Virtual reality exergames for improving physical function, cognition and depression among older nursing home residents: A systematic review and meta-analysis

OBJECTIVE

To explore the effectiveness of virtual reality (VR) exergames on physical function, cognition and depression among older nursing home residents.

METHODS

A systematic review and meta-analysis were conducted. The PubMed, Ovid, Embase, Cochrane, CINAHL, and Web of Science databases were searched for relevant studies from inception until June 1, 2023. The reviewers independently completed the study selection, data extraction and quality assessment. Subgroup analyses were conducted to explore the sources of between-study heterogeneity and to determine whether participant or intervention characteristics influenced effect sizes.

RESULTS

Eighteen studies met the inclusion criteria and were selected for qualitative and quantitative synthesis. The overall methodological quality was relatively high, and the overall evidence grade was moderate. VR exergames had a large effect on physical function, including mobility [SMD=-0.66, P < 0.001], balance [SMD=0.95, P < 0.001], and lower limb strength [SMD=0.53, P = 0.0009]; and a moderate effect on cognition [SMD=0.48, P = 0.02] and depression [SMD=-0.72, P = 0.03]. Subgroup analyses revealed that a training frequency of 2 sessions per week and coordinating with physiotherapists yielded greater improvements in mobility (P = 0.009; P = 0.0001). VR exergames had especially beneficial effects on balance for physically fit participants (P = 0.03) and on cognition for participants with cognitive impairment (P = 0.01). Additionally, regarding the improvement of depression, commercial VR exergames were superior to self-made systems (P = 0.03).

CONCLUSION

VR exergames can provide a positive impact on physical function, cognition and depression among older nursing home residents. The study also demonstrated the different benefits of exergames between participants who were physically fit and those with cognitive impairment, which is considered as an innovative, cost-efficient and sustainable approach. Specifically, commercial VR exergame programs with a frequency of 2 sessions per week and coordinating with physiotherapists may be the most appropriate and effective option.

Effectiveness of non-immersive virtual reality exercises for balance and gait improvement in older adults: A meta-analysis

BACKGROUND

Virtual reality (VR)-based physical exercise is an innovative and effective intervention strategy for healthcare in older adults.

OBJECTIVE

This meta-analysis aimed to clarify the effects of VR-based balance exercise programs on various balancing abilities of older adults. In addition, the effect size of each variable was computed by total exercise time, sensor type, avatar presence, and feedback type to determine influencing factors that lead to the success of VR-based rehabilitation programs.

METHODS

The databases searched were PubMed/Medline, CINAHL, NDSL, and Google Scholar. Inclusion criteria were: (1) independent older adults; (2) non-immersive VR exercise; (3) randomized controlled design; (4) both balance and gait data; and (5) written in English and Korean. The studies without information to compute effect sizes were excluded. Standardized mean difference was used to analyze the effect size (d).

RESULTS

Twenty-five studies were finally included in this study. The main findings of this meta-analysis were as follows: (1) Non-immersive VR-based balance exercises are moderately and largely effective for improving overall balance function, (2) VR balance exercise was more effective for static balance than for gait, (3) VR exercise is more effective when avatars are presented and KP is provided as feedback.

CONCLUSION

Total exercise time and mode of feedback are influencing factors that affect the effectiveness of VR-based balance exercises.

Effectiveness of Virtual Reality in Balance Training for Fall Prevention in Older Adults: Systematic Review

OBJECTIVE

The purpose of this study was to determine the effectiveness of virtual reality (VR) in balance training for the prevention of falls in older adults.

METHODS

We included studies with experimental designs, cohort studies, and quasi-experimental studies of older adults who underwent balance training associated with the use of VR for the prevention of falls. The comparison of control and intervention groups in the studies reported statistically significant improvements in terms of balance for VR.

RESULTS

The effects and benefits from the use of VR were seen by the fourth week of intervention, with significant improvements in balance and lower fall rates, the improvements became greater for groups using VR.

CONCLUSIONS

The benefits presented by the studies were related not only to balance but also to fear of falling, reaction time, gait, physical fitness, independence in activities of daily living, muscle strength, and even quality of life.

The Effect of Mixed Reality Technologies for Falls Prevention Among Older Adults: Systematic Review and Meta-analysis

BACKGROUND

Falling is one of the most common and serious age-related issues, and falls can significantly impair the quality of life of older adults. Approximately one-third of people over 65 experience a fall annually. Previous research has shown that physical exercise could help reduce falls among older adults and improve their health. However, older adults often find it challenging to follow and adhere to physical exercise programs. Interventions using mixed reality (MR) technology could help address these issues. MR combines artificial augmented computer-generated elements with the real world. It has frequently been used for training and rehabilitation purposes.

OBJECTIVE

The aim of this systematic literature review and meta-analysis was to investigate the use of the full spectrum of MR technologies for fall prevention intervention and summarize evidence of the effectiveness of this approach.

METHODS

In our qualitative synthesis, we analyzed a number of features of the selected studies, including aim, type of exercise, technology used for intervention, study sample size, participant demographics and history of falls, study design, involvement of health professionals or caregivers, duration and frequency of the intervention, study outcome measures, and results of the study. To systematically assess the results of the selected studies and identify the common effect of MR interventions, a meta-analysis was performed.

RESULTS

Seven databases were searched, and the initial search yielded 5838 results. With the considered inclusion and exclusion criteria, 21 studies were included in the qualitative synthesis and 12 were included in meta-analysis. The majority of studies demonstrated a positive effect of an MR intervention on fall risk factors among older participants. The meta-analysis demonstrated a statistically significant difference in Berg Balance Scale score between the intervention and control groups (ES: 0.564; 95% CI 0.246-0.882; P<.001) with heterogeneity statistics of I2=54.9% and Q=17.74 (P=.02), and a statistical difference in Timed Up and Go test scores between the intervention and control groups (ES: 0.318; 95% CI 0.025-0.662; P<.001) with heterogeneity statistics of I2=77.6% and Q=44.63 (P<.001). The corresponding funnel plot and the Egger test for small-study effects (P=.76 and P=.11 for Berg Balance Scale and Timed Up and Go, respectively) indicate that a minor publication bias in the studies might be present in the Berg Balance Scale results.

CONCLUSIONS

The literature review and meta-analysis demonstrate that the use of MR interventions can have a positive effect on physical functions in the elderly. MR has the potential to help older users perform physical exercises that could improve their health conditions. However, more research on the effect of MR fall prevention interventions should be conducted with special focus given to MR usability issues.

Feasibility, Acceptability, and Efficacy of Virtual Reality Training for Older Adults and People With Disabilities: Single-Arm Pre-Post Study

BACKGROUND

Unlike most virtual reality (VR) training programs that are targeted at homogenous populations, a set of VR games for rehabilitation purposes targeted at a heterogeneous group of users was developed. The VR games covered physical training, cognitive training (classification and reality orientation), community-living skills training, and relaxing scenery experiences. Special considerations for local older adults and people with disabilities were made in terms of hardware choice and software design.

OBJECTIVE

This study aimed to evaluate the feasibility, acceptance, and efficacy of VR training among users with varying abilities.

METHODS

A single-arm pretest-posttest evaluation study was conducted. The participants of the evaluation study were encouraged to undergo 30-minute VR training three times a week for 6 weeks. The 30-minute session consisted of 10 minutes of upper-limb motion games, 10 minutes of lower-limb motion games, and 10 minutes of cognitive games/community-living skills training/relaxing scenery experiences, as appropriate. On completion of each session, usage statistics were documented via the built-in VR software, whereas feedback on the experience of the VR games and adverse events was collected via self-reports and staff observations. Feasibility was reflected by usage statistics, and acceptance was reflected by positive feedback. In addition, health outcomes, including upper-limb dexterity, functional mobility, cognitive function, and happiness, were assessed at baseline, as well as 6 weeks and 3 months after baseline. The primary outcomes were upper-limb dexterity and acceptance of playing VR games.

RESULTS

A total of 135 participants with a mean age of 62.7 years (SD 21.5) were recruited from May 2019 to January 2020, and 124 (91.9%) completed at least one follow-up. Additionally, 76.3% (103/135) of the participants could attend at least 70% of the proposed 18 sessions, and 72.5% (1382/1906) of the sessions had a training time of at least 20 minutes. Linear mixed effect models showed statistically significant effects in terms of upper-limb dexterity (small effect) and cognitive function (moderate effect). Among the 135 participants, 88 provided positive comments. Additionally, 10.4% (14/135) reported mild discomfort, such as dizziness, and none reported severe discomfort.

CONCLUSIONS

A set of VR training games for rehabilitation could be applied to users with heterogeneous abilities. Our VR games were acceptable to local older adults and those with different disabilities. Benefits in upper-limb dexterity and cognitive function were observed despite partial compliance to the training protocol. Service providers could refer to our experiences when developing VR training systems for their clients.

Virtual Reality Rehabilitation and Exergames—Physical and Psychological Impact on Fall Prevention among the Elderly—A Literature Review

The present review is aimed at the effectiveness of virtual reality (VR) and exergames in the prevention of falls among the elderly. Falls become a significant problem in the aging population and lead to psychological, social, and physical impairment. Prevention of falls is crucial to the well-being of the elderly population and is one of the challenges of contemporary rehabilitation. Recently, in view of the threat of the SARS-CoV-2 pandemic, contactless methods of rehabilitation, including telerehabilitation, appear as valuable rehabilitation tools. This review is based on the PRISMA guidelines and was carried out in five databases: PubMed, Medline, Web of Science, Scopus, and PEDro. Twenty-one randomized controlled trials, focused on the application of VR and exergames in the prevention of falls, were included. This review suggests that VR training in rehabilitation appears to be a promising complement to traditional techniques of physiotherapy to improve specific physical outcomes. VR and exergames could be considered as a complement of standard physiotherapy and its possible continuation at home for elderly. However, further high-quality studies, with carefully designed protocols and proper blinding, are needed.

Effects of Interactive Videogames on Postural Control and Risk of Fall Outcomes in Frail and Pre-frail Older Adults: A Systematic Review and Meta-Analysis

Background: Interactive videogames (IVGs) have been used to reduce risk of falls in the older adult and improve postural control (PC) outcomes. Objective: To systematically review trials that examine whether IVGs training is effective in improving PC and managing falls in frail and pre-frail older adults. Data Sources: Four databases were searched, Scopus, Web of science, PubMed, and MEDLINE, from January 2007 to March 2019. Eligibility Criteria: Frail and pre-frail older adults aged 65+. Interventions were any Nintendo^® Wii™ training. The outcome measures were PC and risk of falls as measured by any validated outcome measure. Studies Appraisal Method: The PEDro (Physiotherapy Evidence Database) scale and Cochrane risk-of-bias tool were used by two independent authors. Results: Eleven papers were included, involving 388 participants, with a mean age of 79 ± 5.7 years. The mean duration of IVGs sessions was 8.8 ± 3.8 weeks, the mean total number of sessions was 20 ± 11.1 session, and the mean length of training was 44 ± 15.7 minutes. Meta-Analysis: IVGs achieved better results compared with traditional exercises and control on the Berg Balance Scale (mean difference [MD] 2.80; 95% confidence interval [CI] 1.21 to 4.39; P < 0.001; I² = 16%), as well as in the short term on Timed Up and Go (MD -1.23; 95% CI -2.37 to -0.09; P = 0.03; I² = 0%). Limitation: Definitive judgement could not be made due to the variability in training, training duration and outcomes measurement. Conclusion: IVGs is a promising modality that has a positive effect on PC but not on the outcome of falls, so it should be prescribed with caution among frail older adults. Systematic Review Registration: PROSPERO registration number: CRD42019129611.

The Potential of Immersive Virtual Reality for Cognitive Training in Elderly

The number of elderly is growing rapidly, including those that struggle with cognitive decline and, consequently, activities of daily living. Developing interventions that slow down cognitive decline would greatly benefit the autonomy of these elderly, as well as their caretakers. Virtual reality (VR) is an immersive and interactive human-computer interface with real-time simulation that is suggested to be a promising tool to improve cognitive functioning. This literature review discusses the features of immersive VR, including its opportunities and limitations, that are of special relevance for improving cognition in elderly. First, the high flexibility of VR allows for personalized and safe training of potentially harmful situations and isolated aspects of tasks. Second, VR's dynamic and real-time feedback on performance provides a labor-extensive tool for caretakers in elderly care. Third, the acquisition of high resolution data enables the exposure of subtle changes over time, relevant for detecting the nature and extent of cognitive changes in elderly, including those with dementia. Fourth, immersive VR has been related to cybersickness. Finally, VR is immersive and enables the perception and expression of emotions, motor behaviors, and multiple senses. Aged subjects are found to have sparing of emotional learning and show increased reliance on multisensory integration for learning. Moreover, they experience high levels of flow, motivation, and presence in VR setups. Despite the clear potential of immersive VR, the studies available are small scale and have not been replicated. The digital illiteracy of elderly and healthcare personnel form an additional barrier for implementation. Hence, while replication of outcomes and standardization of VR interventions is required before it can be used in standard care, VR may provide a particularly effective tool for training cognition in elderly.

Virtual reality interventions for balance prevention and rehabilitation after musculoskeletal lower limb impairments in young up to middle-aged adults: A comprehensive review on used technology, balance outcome measures and observed effects

BACKGROUND

Balance training is an important aspect in prevention and rehabilitation of musculoskeletal lower limb injuries. Virtual reality (VR) is a promising addition or alternative to traditional training. This review aims to provide a comprehensive overview of VR technology and games employed for balance prevention and rehabilitation, balance outcome measures, and effects for both balance prevention and balance rehabilitation following musculoskeletal lower limb impairments.

METHODS

A systematic literature search was conducted in electronic databases to identify all related articles with a longitudinal study design on VR, balance, and prevention or musculoskeletal rehabilitation of the lower limbs in adult subjects between 19 and 65 years.

RESULTS

Eleven articles concerning balance prevention and five articles regarding balance rehabilitation were included. All studies used screen-based VR and off-the-shelf gaming consoles with accompanying games. The Star Excursion Balance Test (SEBT) was the most frequently used outcome measure. Two studies found positive effects of VR balance training in healthy adults, while none reported negative effects. None of the included studies showed a significant difference in balance performance after a VR balance rehabilitation intervention compared to traditional balance training.

CONCLUSION

Few studies have been published concerning musculoskeletal balance rehabilitation and balance prevention in healthy adult subjects. However, the studies published have shown that VR exercises are equally effective compared to traditional balance training for both domains of application. As there is large variability between studies, recommendations for future research are given to prospectively investigate the use of VR technology for balance training.

Tai Chi Chuan can improve balance and reduce fear of falling in community dwelling older adults: a randomized control trial

Fear of falling and balance impairment are prevalent in older adults and cause major morbidities for this population. The aim of this study was to evaluate the effect of Tai Chi Chuan on balance and fear of falling in community-dwelling older adults. This study was a single-blind randomized control trial. Sixty older adults were randomly allocated into two groups using a 4-cell random block design. The participants of intervention group were trained in Tai Chi Chuan for eight weeks, twice a week, and 55 min in each session. Balance and fear of falling were assessed by Timed Up and Go (TUG) test, Tinetti test and Falls Efficacy Scale International in baseline and after 8 weeks. After eight weeks of intervention, the mean scores of the TUG and Tinetti scales in the intervention group were improved significantly compared to the baseline and the control group (P<0.001). Moreover, the intervention group showed a significant reduction in fear of falling scores (P<0.001), while those in the control group remained unchanged. Tai Chi Chuan effectively improves the balance and fear of falling and could be considered as a practical and useful method for fall prevention in community-dwelling older adults.