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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.
RESUMO
BACKGROUND: There is a growing interest in the impact of body posture influences on outcome measures of cervicogenic headache (CGH). OBJECTIVE: To evaluate differences in the 3D spinal alignment in cases suffering from chronic CGH compared to a group of strictly matched control participants without CGH. DESIGN: A single-blinded, comparative cohort design. METHODS: 100 participants suffering from frequent headaches for at least 3 months who fulfilled the CHISG criteria for CGH were match by age and sex to 100 asymptomatic control group participants. A 4D Formetric device was used to assess participants' posture variables of: 1) thoracic kyphosis max (ICT-ITL in degrees); 2) trunk lateral imbalance (VP-DM in mm); 3) Trunk anterior inclination (VP-DM in mm); 4) lumbar lordotic angle (ITL-ILS max in degrees); 5) Vertebral rotation (rms) in degrees. A matched-pairs binary logistic regression was used to determine whether measurements of posture demonstrated an association with the likelihood of the presence of CGH. RESULTS: There were statistically significant differences between the CGH and control group for all posture variables indicating larger posture displacements in the CGH group: ICT-ITL (p < .001), Lateral VP-DM (p < .001), Sagittal VP-DM (p < .001), ITL-ILS (p < .001), RMS (p < .001). Logistic regression revealed that as posture displacement increased, a statistically significant increased likelihood of having CGH occurred: (ICT-ITL (max) (p < .001); Trunk imbalance VP-DM (p < .004); Trunk inclination VP-DM (p < .001); and vertebral rotation (RMS) (p = .007). No such relationship was found for Lumbar Lordosis ITL-ILS max. CONCLUSIONS: Participants with CGH exhibited increased magnitudes of thoracolumbar posture displacements which corresponded to an increased odds of suffering from CGH compared to matched control participants.
