Despite being becoming popular and heavily used in rehabilitation, the evidence on the effectiveness of Virtual reality-based therapy (VRBT) among persons with knee osteoarthritis (OA) remains limited. The aim of this study was to determine the effects of VRBT on walking endurance and quality of life of older persons with knee OA in comparison to conventional exercise therapy. This was a randomised controlled trial involving 44 participants (mean age and standard deviation = 66.32 ± 5.73 years) who received either a VRBT (experimental group, n = 22) or a conventional exercise therapy (control group, n = 22) for 45 minutes, twice per week for 12 weeks. The outcome of both therapies on walking endurance was measured using Six-Minute Walk Test (6 MWT), while quality of life was assessed using the Malay-version of Short Form-36 (SF-36). Analysis was done by ‘intention-to-treat’ approach, using Mixed Model ANOVA. A significant time-effect (p < 0.05), with large effect size between 0.43 and 0.54 were found for all outcomes following the therapies. An increase of 17% and 19% of 6 MWT scores were obtained in experimental and control group, respectively. Meanwhile, the scores for the physical and mental components of the SF-36 increased by 37.8% and 19.4% in the experimental group, and 45.7% and 20.6% in the control group. However, no significant group and interaction effects were found for all outcomes (p > 0.05). In conclusion, VRBT is comparable with conventional exercise therapy in improving walking endurance and quality of life of persons with knee OA, and can be used as a therapy option for this population.
Older adults who fall recurrently have sub-optimal physical performance especially muscle strength, mobility and balance. Recurrent falls lead to a heightened fear of falls. However, there is limited information regarding other domains of physical performance, namely flexibility and endurance. In addition, there is still limited knowledge pertaining fear of falls and physical activity levels among Malaysian community-dwelling older adults who are recurrent fallers. The aim of our study was to compare fear of falls, physical performance and physical activity levels among older adults with falls and recurrent falls. This cross- sectional study was carried out in two Malaysian urban districts. Physical performance was examined using Functional Fitness MOT (FFMOT). Modified Baecke Questionnaire and Activities-Specific Balance Confidence (ABC-6) Scale were administered to evaluate the level of daily physical activity and fear of falls respectively. A total of 35 older adults participated in this study, 20 fallers (mean age: 71.95±8.22) and 15 recurrent fallers (mean age: 76.73±8.82) respectively. Our study results showed that older adults with recurrent falls had significantly reduced lower extremity strength, dynamic balance, endurance, balance confidence in activities of daily living and physical activity levels compared to faller group (p < 0.05). Although flexibility and upper limb strength were not significantly different among fallers and recurrent fallers, overall improvement in physical performance should be targetted in falls prevention and management. This is vital to prevent further deterioration in physical performance among older adults with recurrent falls.