Ethics code: ETHIC-202308-1068 (R1)
1- Tehran University
Abstract: (36 Views)
Background & Objective: balance control is a very important factor during sports activities. Balance disorders in people with chronic ankle instability can be the result of dysfunction of one of the visual, somatosensory, or vestibular sources that maintain balance in the body. Information obtained from weight can be united by all three systems in the CNS and create balance. People with chronic ankle instability rely on the sense of vision and the somatosensory in these people is weaker than healthy people. By challenging the vision, Virtual Reality forces the body to use other resources to maintain balance. In this research, common exercises and Virtual Reality exercises are examined to evaluate the effectiveness of different exercises. Therefore, the aim of this research is " Comparison of Virtual Reality exercises and conventional exercises in lower limb balance function in chronic ankle instability".
Methods: The current research is semi-experimental. The statistical population of this research included 40 patients aged 18 to 30 who referred to the Shariati Physiotherapy Clinic with chronic ankle instability, which was determined using the Cumberland questionnaire. The validity and reliability of this questionnaire were reported as 0.83 and 0.99 respectively. The score of this questionnaire is ranges from 0 to 30, above 27 indicates a healthy ankle and below 27 indicates an unstable ankle. Subjects were randomly divided into four groups of virtual reality exercises, common, combined and control. The interventions included playing with virtual reality and common exercises that focused mostly on balance exercises. Balance was measured through Y test in pre-test and post-test. The modified star balance test called the Y balance test is one of the valid and reliable methods for evaluating dynamic postural control, especially for detecting sensory-motor deficits related to chronic ankle instability (α = 0.86-0.95). The maximum reach was measured in three directions, then the overall score was calculated and compared. To analyze the data, a mixed ANOVA test was performed with between-group comparison for groups and intra-group comparison for pre- and post-test.
Results: The results showed that there is a significant interaction effect between measurement time and four groups on balance (p=0.001 and F=675.00). There is also a significant main effect of measurement time (before and after measurement) on balance (p=0.001 and F=206.55). The results also showed that there is a significant intergroup effect in balance (p=0.001 and F=6.65). Bonferroni's post hoc test showed that there is a significant difference in the balance between the groups of virtual reality exercises and common exercises, virtual reality exercises and control.
Conclusion: Virtual reality and combined exercises are more effective than common exercises in improving the balance of people with chronic ankle instability, and it is suggested that virtual reality and combined exercises be used to improve this ability. Common exercises were also more effective than the control group.
Methods: The current research is semi-experimental. The statistical population of this research included 40 patients aged 18 to 30 who referred to the Shariati Physiotherapy Clinic with chronic ankle instability, which was determined using the Cumberland questionnaire. The validity and reliability of this questionnaire were reported as 0.83 and 0.99 respectively. The score of this questionnaire is ranges from 0 to 30, above 27 indicates a healthy ankle and below 27 indicates an unstable ankle. Subjects were randomly divided into four groups of virtual reality exercises, common, combined and control. The interventions included playing with virtual reality and common exercises that focused mostly on balance exercises. Balance was measured through Y test in pre-test and post-test. The modified star balance test called the Y balance test is one of the valid and reliable methods for evaluating dynamic postural control, especially for detecting sensory-motor deficits related to chronic ankle instability (α = 0.86-0.95). The maximum reach was measured in three directions, then the overall score was calculated and compared. To analyze the data, a mixed ANOVA test was performed with between-group comparison for groups and intra-group comparison for pre- and post-test.
Results: The results showed that there is a significant interaction effect between measurement time and four groups on balance (p=0.001 and F=675.00). There is also a significant main effect of measurement time (before and after measurement) on balance (p=0.001 and F=206.55). The results also showed that there is a significant intergroup effect in balance (p=0.001 and F=6.65). Bonferroni's post hoc test showed that there is a significant difference in the balance between the groups of virtual reality exercises and common exercises, virtual reality exercises and control.
Conclusion: Virtual reality and combined exercises are more effective than common exercises in improving the balance of people with chronic ankle instability, and it is suggested that virtual reality and combined exercises be used to improve this ability. Common exercises were also more effective than the control group.
Type of Study: Original Research Article |
Subject:
Rehabilitation
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