• 대한물리치료과학회지
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• 제31권1호
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• pp.70-87
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• 2024

Background: This study aimed to investigate the effect of Y-balance exercise on spatio-temporal gait parameters in subjects with chronic ankle instability. Design: Randomized Controlled Trial. Method: A study was conducted on 43 people with chronic ankle instability. Subjects performed modified Y-balance exercise 3 times a week for 50 minutes, 4 weeks. Gait parameters were measured using a gait analysis treadmill before exercise, 2 weeks after exercise, and 4 weeks after exercise. A gait analysis treadmill (FDM-T AP1171, Zebris, Germany) was used to measure gait parameters. Mean values were compared using Repeated measured two-way ANOVA. Result:: When comparing the results of three measurements taken before exercise, 2 weeks after exercise, and 4 weeks after exercise, there were significant differences in the qualitative and quantitative aspects of gait in gait variables such as step distance, step time, step ratio, and sway ratio. Conclusions: These results suggest that the Y-balance exercise and various exercises combining balance and proprioception are effective for subjects with chronic ankle instability.

• 대한족부족관절학회지
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• 제6권2호
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• pp.167-171
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• 2002

Purpose: To analyze the result of Modified Brostr$\ddot{O}$m procedure for Chronic ankle lateral instability without associated injury. Materials and Methods: Forty-one patients(Forty-one feet) diagnosed and operated with chronic ankle lateral instability without associated injury were evaluated retrospectively from June 1995 to December 1999. Twenty-three patients were athletes. For the evaluation of clinical outcome, a subjective grading scale of modified Hamilton was used, and pain relief, relief of instability symptom and anterior drawer test were evaluated. Results: Among forty-one operations, there were six excellent, thirty-five good results as a whole. All cases showed over the grade good. The average time to ordinary life in the non-atheletes was 2.5 months and average time to sport activity in the athletes was 4 months postoperatively. Conclusion: The modified Brostr$\ddot{O}$m procedure seems to be effective method for chronic ankle lateral instability without associated injury.

• 한국전문물리치료학회지
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• 제30권4호
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• pp.268-274
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• 2023

Background: Ankle sprains occur frequently among humans who undertake various body movements. Diverse walking environments and dual tasks, that can affect ankle sprains, have been studied. However, there is a lack of research on inter-trial variability according to the changes in gait speed. Objects: The purpose of this study was to compare the adaptive ability of walking between the subjects with chronic ankle instability and healthy adults while performing a walking task with different walking speeds. Methods: In this study, 24 people in the chronic ankle instability group and 24 people in the healthy ankle group were selected as subjects. The length of the pre-measurement and the actual walking measurement were both set to 4.6 m. Once the subjects entered the measurement section, they changed their gait speed according to the randomly assigned speed change. Gait was measured twice and the average value was used for the analysis. Results: The coefficient of variation (CV) of cycle time in subjects with chronic ankle instability showed a significant difference in all cases except when the subjects changed their speed from preferred to slow and from slow to preferred. The CV of step length demonstrated a significant difference in all cases except for the change from slow to preferred and from preferred to fast. The cycle time and step length differential showed a significant difference only when the subjects changed the speed from slow to fast. Conclusion: The subjects with chronic ankle instability were found to have significantly reduced walking adaptability while performing inter-trial variability tasks with different gait speeds compared to healthy subjects.

• 대한족부족관절학회지
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• 제25권1호
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• pp.32-37
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• 2021

Patients with chronic lateral ankle instability often experience a range of associated injuries. The well-known comorbidities include intra-articular pathologies (osteochondral lesion, soft tissue or bony impingement, and loose body), peroneal tendon pathologies, neural injuries, and other extra-articular pathologies. Surgeons should have a high index of suspicion for these associated pathologies before operative intervention, correlate the clinical findings, and plan the treatment. Despite the restoration of ankle stability following ligament repair or reconstruction surgery, a high prevalence (13%~35%) of postoperative residual pain has been reported. This pain can negatively affect the clinical outcomes and patient satisfaction. This study examined the causes of persistent pain after surgical treatments for chronic ankle instability.

• 대한족부족관절학회지
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• 제23권1호
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• pp.6-11
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• 2019

As a result of the increased participation in recreational and competitive sports activity, the incidence of chronic lateral instability has risen. Because chronic ankle instability can cause significant comorbidity and increase the social cost, the interest in this issue is growing. Although there are well-documented and effective surgical treatments for managing this condition, conservative treatments are a viable first option in selected patients. Through conservative treatment, surgical treatments can be reduced or delayed without necessarily affecting the overall outcome, but the failure of conservative treatment results in the need for surgical treatment to reduce the long term complications. Appropriate postoperative rehabilitation is essential for adequate functional recovery, even when surgical treatment is required.

• 한국산학기술학회논문지
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• 제17권3호
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• pp.276-282
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• 2016

본 연구는 만성 발목 불안정성을 가진 엘리트 선수들을 대상으로 8주간의 엉덩이 강화 운동이 엉덩이의 근력 및 족압 분포도의 변화에 어떠한 영향을 미치는 지를 분석하기 위해 실시되었다. 발목에 최소 2회 이상의 발목 염좌를 진단받은 만성 발목 불안정성의 대상자 19명을 대상으로 8주간의 엉덩이 강화 운동을 실시하였으며, 결과에서 엉덩이 강화 운동으로 엉덩이의 외전근력은 유의한 증가를 보였지만 족압의 분포도와 증가비율은 유의한 변화를 보이지 않았다. 이 결과는 운동 후, 환측과 건측의 근력과 족압분포의 차이가 나타나지 않아 환측의 근력과 족압분포가 건측의 수준만큼 증가된 것으로 생각되며 이는 8주간의 엉덩이 강화 운동이 발목의 불안정의 개선에 일정정도 효과가 있는 것으로 사료된다. 이러한 결과를 토대로 만성 발목 불안정성을 가진 대상자들의 회복과 재발방지를 위한 재활운동 프로그램의 구성요인으로서 엉덩이 외전근력 강화와 족압 분포도에 대한 부분을 중요하게 반영하는 것이 효과적일 것으로 사료된다.

• 대한족부족관절학회지
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• 제6권1호
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• pp.66-72
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• 2002

Purpose: To evaluate the overall results and its major affecting factors(athlete/associated injury) of modified Brostrom procedure for chronic ankle lateral instability. Materials and Methods: Fifty-one patients (51 ankles) with chronic ankle lateral instability were sub-grouped athletes and non-athletes and again sub-grouped with associated injury and without associated injury. Associated injuries were osteochondral defect(6), peroneal tendon abnormality(10), os subfibularae(4), os subtibialae(4), anterior impingement(5) and loose body(2). The overall surgical results were evaluated and also see whether or not athletes and associated injury affect the result. Result: Of the 51 operations performed, there were 39 excellent, 8 good and 4 fair as a whole. Of the 24 athletes operated, there were 19 excellent, 3 good, and 2 fair. Among the 27 non-athletes, there were 20 excellent, 5 good and 2 fair results. The average time to ordinary life in the non-athlete group was 2.5 months and average time to sports activity in the athlete was 4.5 months postoperatively. Those who didn't have any associated injury had all excellent result, on the contrary, those who had associated injuries, 14 excellent, 8 good and 4 fair results. All the fair results were associated with osteochondral lesion of talus. Whether or not the patient is athlete does not affect the surgical results, but whether or not there were associated injuries does affect the surgical results. Conclusion: Modified Brostrom procedure for chronic ankle lateral instability itself is an excellent to good operation. This procedure can be used in athletic populations who need high demand of sports activity. But chronic ankle lateral instability with associated injury group showed variable, less satisfactory results than those without associated injury. Careful preoperative and intraoperative examination should be done to find out the associated injury with chronic ankle lateral instability.

• The Journal of Korean Physical Therapy
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• 제28권5호
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• pp.303-307
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• 2016

Purpose: This study was conducted to determine the effects of Mulligan's mobilization with movement (MWM) on changes in the talofibular interval in the sagittal plane in subjects with chronic ankle instability (CAI). Methods: Sixteen subjects with chronic ankle instability participated in this study. The talofibular intervals were measured from US images, and the weight-bearing lunge test was used to assess dorsiflexion of the ankle joint. Each dependent variable were measured on the both affected side and sound side in three trials in pre- and post-MWM. Dependent variables were examined with a two-way mixed-design analysis of variance (ANOVA). The two factors were side (sound side versus affected side) and intervention (pre- versus post-intervention). For post hoc analysis, paired t-tests were performed to compare the dependent variables. A p<0.05 was considered to indicate significance. Results: Dorsiflexion and talofibular interval differed significantly pre- and post-intervention (p<0.05). Post-hoc analysis revealed that the talofibular interval post-MWM was significantly less than that pre-MWM on the both the affected and sound side (p<0.05). The ankle dorsiflexion in the post-MWM group was significantly greater than that in the pre-MWM group on the affected side and the sound side (p<0.05). Conclusion: The Mulligan's MWM decreased the talofibular interval in subjects with CAI. These findings suggest that the MWM technique can change the position of the talus relative to the fibular in the weight bearing position.

• The Journal of Korean Physical Therapy
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• 제28권4호
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• pp.243-248
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• 2016

Purpose: This study was conducted to identify the effects of neuromuscular training performed on badminton club members' to improve muscle activity of the lower extremities and static and dynamic balance tests. Methods: The subjects were 20 badminton club members with chronic ankle instability who were randomly divided into a neuromuscular training group and a balance training group, each with 10 patients. Both exercises ware performed three days per week for 30 minutes a day over six weeks. Results: The neuromuscular training group showed increased muscle activity of the lower extremities compared to the balance training group. Neuromuscular training increased balance ability better than the balance training group, showing a significant difference and better efficiency of neuromuscular training when compared to balance training. Conclusion: This research evaluated neuromuscular training as an intervention for badminton club members with chronic ankle instability and compared the differences in muscle activity of the lower extremities and balance ability; as a result of the effective frequency for improving performance, there was a significant difference in muscle activity of lower extremities and balance ability of the neuromuscular training group and the control group.

• The Journal of Korean Physical Therapy
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• 제29권6호
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• pp.293-298
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• 2017

Purpose: The purpose of this study was to determine the effects of whole body vibration exercise (WBVE) on lower extremity muscle activity and balance ability according to different methods of exercises in football player and use it as basic data for the rehabilitation training of chronic ankle instability. Methods: Thirty subjects were randomly divided into two groups: the two groups, which each group have 15 members, are WBVE group and neuromuscular training (NMT) group according to training method. The exercise program was conducted for six weeks. Subjects were measured on lower extremity muscle activity and balance ability. Results: The muscle activity increasement of the WBVE group was significantly higher than that of the NMT group (p<0.05) and the balance ability decreasement of the WBVE group was significantly higher than that of the NMT group (p<0.05). Conclusion: These findings of this study suggest that WBVE may have a beneficial effect on improvement of lower extremity muscle activity and balance ability in football player with chronic ankle instability.