Effect of Wiihabilitation on strength ratio of ankle muscles in adults

Compare the Effect of Traditional and Virtual Reality Training on Subjective-sense of Instability and Balance in Basketball-players with Functional Ankle Instability: Matched Randomized Clinical Trial

Background

Functional ankle instability (FAI) is a common injury. Traditional training improved the reported balance impairment and subjective sense of instability in athletes with FAI.

Objective

This study aims to compare the effects of traditional and virtual reality training on a subjective sense of instability and balance in athlete with FAI.

Material and Methods

In this single-blinded matched randomized clinical trial design, Fifty-four basketball players were randomly assigned in the virtual reality (n=27) or control (n=27) groups. All athletes performed 12 sessions Wii exercises or traditional training in the virtual reality and the control group, respectively, for three days a week. To assess the subjective-sense of instability and balance, we used Cumberland Ankle Instability Tool (CAIT) and Star Excursion Balance Test (SEBT), respectively. Measures were taken at pre- and post-test and one month after training as a follow-up. The between-group comparisons were done by the analysis of Covariance.

Results

At the pre-test, the CAIT score was 22.37, 22.04 in the control and virtual reality groups, respectively and at the post-test, these scores increased to 26.63, 27.26. The involved limb showed significant differences in posteromedial and posterior directions of the SEBT and CAIT score in the post-test and in the posterior direction and CAIT score in the follow-up. The virtual reality group had better performance than the control group but the effect size is small (cohen's d<0.2).

Conclusion

Based on our results, both training protocols were effective in reducing the subjective-sense of instability and improved balance in athletes with FAI. Moreover, virtual reality training was very attractive for the participants.

Comparison of the effects of Wii and conventional training on functional abilities and neurocognitive function in basketball-players with functional ankle instability: Matched randomized clinical trial

OBJECTIVE

To compare the effects of Wii and conventional training on functional abilities and neurocognitive function in basketball-players with Functional Ankle Instability (FAI).

DESIGN

Single-blind matched randomized clinical trial study.

SETTING

Outpatients setting.

PARTICIPANTS

Fifty-four basketball-players were randomly assigned to the Wii and control group.

INTERVENTIONS

All athletes in the Wii group (n = 27) performed Wii Fit Plus games; and in the control group (n = 27), they performed conventional training three days a week for 12 sessions.

MAIN OUTCOME MEASURES

To assess functional performance and neurocognitive function, we used hop tests (8-hop, side hop, and single hop) and Deary-Liewald Reaction Time Task (DLRT), respectively. DLRT measured simple and choice reaction time and error rate. Measures were taken at baseline, four weeks, and eight weeks after baseline.

RESULTS

In all 54 athletes completed the study. The results showed no significant differences for all hop tests in between-group comparison but the neurocognitive function showed significant improvements in the Wii group compared to the control group (P < 0.05). Mean (SD) for 8-hop and side hop tests for the involved limb, and simple and choice reaction time four weeks after baseline in the control group were 10.15 (1.02), 12.36 (1.31), and 339.10 (41.57), 530.52 (53.36), respectively and in the Wii group, were 10.46 (1.23), 12.40 (1.31), and 295.25 (13.16), 431.19 (33.46), respectively.

CONCLUSION

Based on our results, both training protocols were equal to positively affect functional abilities. Besides, Wii training improved neurocognitive function and can be applied in FAI rehabilitation protocols.

Gamification and Control of Nitinol Based Ankle Rehabilitation Robot

Conventional ankle rehabilitation exercises can be monotonous and repetitive. The use of robots and games can complement the existing practices, provide an engaging environment for the patient and alleviate the physiotherapist’s workload. This paper presents an ankle rehabilitation robot that uses two nitinol wire actuators and a Pong game to provide foot plantarflexion and dorsiflexion exercises. Nitinol is a type of smart material that has high volumetric mechanical energy density and can produce translational motion. A two-state discrete antagonistic control is proposed to manipulate the actuators. The system was tested on healthy participants and stroke patients. The results showed that the robot was safe and compliant. The robot did not forcefully plantarflex or dorsiflex the foot when the participant exerted opposing force. The actuators worked antagonistically to flex to the foot as intended, in sync with the up and down motions of the player’s bat in the game. These behaviors demonstrated the feasibility of a nitinol-based ankle rehabilitation robot and a simple and yet intuitive game in providing interactive rehabilitation exercise. The robot is expected to enhance the patient’s experience, participation and compliance to the rehabilitation routine and to quantitatively monitor the patient’s recovery progress.

Virtual reality versus Biodex training in adolescents with chronic ankle instability: a randomized controlled trial

INTRODUCTION

Ankle instability is a common injury in athletes, affecting the quality of life, functional limitation, as well as static and dynamic balance. The aim of the study was to compare the efficacy of virtual reality and Biodex balance training in the treatment of ankle instability in adolescent athletes.

MATERIAL AND METHODS

Ninety football players were enrolled in this study after the assessment of their eligibility. Their age ranged from 12 to 16 years. They were randomly allocated to three groups of equal numbers. Group 1 received a guideline protocol, group 2 received the same guideline protocol in addition to Wii Sport Training, and group 3 received the same guideline protocol in addition to Biodex balance training. All groups received treatment protocols three times a week for 3 months. Outcome measures included the stability indices (overall stability, anteroposterior stability, and mediolateral) measured by the Biodex Balance System as well as ankle instability measured by the Cumberland Ankle Instability Tool. Measurements were collected at the baseline and after 3 months of treatment.

RESULTS

Post-treatment findings revealed a statistically significant decrease in the overall, anteroposterior, and mediolateral stability indices, as well as significant increase in Cumberland Ankle Instability outcomes of all groups (p < 0.05). On the other hand, there were no statistically significant differences between the virtual reality and Biodex balance training groups.

CONCLUSIONS

Virtual reality training has a significant effect which appears to be similar to the Biodex balance training in adolescent athletes with chronic ankle instability.

Developing interactive and simple electromyogram PONG game for foot dorsiflexion and plantarflexion rehabilitation exercise

Gaming systems have been proven to be able to improve physical and cognitive skills. Several studies have integrated games to be part of rehabilitation program to improve functional ability of human limbs in performing activities of daily living. This paper presents the development of an interactive electromyogram (EMG) based PONG game for foot dorsifexion and plantarflexion exercise. PONG game is selected because it is a classical game that can be easily comprehended and can be played by young and old people. Two surface EMG sensors were used in this work to acquire muscle activity of tibialis anterior muscle and gastrocnemius muscle. An experimental study was carried out to examine the viability of this sensor as input to play the game. The results were satisfactory. This study further strengthens the viability of using muscle activity as an input for gaming system and as a mean to monitor patient rehabilitation progress.