Relationship Between Functional Ankle Instability and Postural Control

Background: Although lateral ligament augmentation using suture-tape has been effective for restoration of mechanical ankle stability, few data are available regarding changes of peroneal strength, proprioception, and postural control. The aim of this study was to determine effects of suture-tape augmentation on functional ankle instability (FAI). Methods: Twenty-four patients who underwent suture-tape augmentation were eligible and were followed more than 2 years postoperatively. Functional outcomes were evaluated with the Cumberland Ankle Instability Tool (CAIT), Foot and Ankle Ability Measure (FAAM). Changes of peroneal strength, proprioception and postural control were analyzed with an isokinetic dynamometer and a modified Romberg test. Results: CAIT and FAAM (average of daily and sports activity scores) significantly improved to average 27.2 points and 86.7 points, respectively, at final follow-up. Peak torque for eversion in 60 degrees/s angular velocity significantly improved to 10.6 Nm at final follow-up. Deficit ratio of peak torque for eversion significantly improved from mean 39.5% to 20.9%, and significant side-to-side difference was revealed ( P < .001). There were no significant differences in joint position sense. A significant improvement in balance retention time was revealed at final follow-up, and the relative deficit ratio compared to the unaffected side was 30.9%. Conclusions: Patient-reported functional outcomes significantly improved after lateral ligament augmentation using suture-tape. Although this procedure demonstrated significant effects on FAI based on improvement of isokinetic peroneal strength and postural control, recovery rates compared to the unaffected side were not significant at the intermediate-term follow-up. In addition, there was no positive effect on proprioception of the ankle. Level of Evidence: Level IV, prospective case series.

Download Full-text

Postural Control Deficits in Participants with Functional Ankle Instability as Measured by the Balance Error Scoring System

Clinical Journal of Sport Medicine ◽

10.1097/00042752-200605000-00003 ◽

2006 ◽

Vol 16 (3) ◽

pp. 203-208 ◽

Cited By ~ 129

Author(s):

Carrie L. Docherty ◽

Tamara C. Valovich McLeod ◽

Sandra J. Shultz

Keyword(s):

Postural Control ◽

Scoring System ◽

Ankle Instability ◽

Functional Ankle Instability ◽

Balance Error Scoring System ◽

Balance Error

Download Full-text

Effects of Balance Training Combined with Plyometric Exercise in Postural Control: Application in Individuals with Functional Ankle Instability

IFMBE Proceedings - 6th World Congress of Biomechanics (WCB 2010). August 1-6, 2010 Singapore ◽

10.1007/978-3-642-14515-5_60 ◽

2010 ◽

pp. 232-235

Author(s):

P. Y. Huang ◽

C. F. Lin

Keyword(s):

Postural Control ◽

Ankle Instability ◽

Balance Training ◽

Functional Ankle Instability ◽

Plyometric Exercise ◽

Control Application

Download Full-text

Six-Week Remodeled Bike Pedal Training Improves Dynamic Control of Lateral Shuffling in Athletes With Functional Ankle Instability

Sports Health A Multidisciplinary Approach ◽

10.1177/19417381211035781 ◽

2021 ◽

pp. 194173812110357

Author(s):

Hong-Wen Wu ◽

Yi-Shuo Chang ◽

Md Samsul Arefin ◽

Yu-Lin You ◽

Fong-Chin Su ◽

...

Keyword(s):

Postural Control ◽

Ankle Joint ◽

Muscle Activation ◽

Ankle Instability ◽

Controlled Trial ◽

Joint Control ◽

Initial Contact ◽

Functional Ankle Instability ◽

Peroneus Longus ◽

Dynamic Task

Background: Remodeled bicycle pedal training with multidirectional challenges through muscle strengthening and neuromuscular facilitation may increase dynamic postural control and performance during lateral shuffling for athletes with functional ankle instability (FAI). Hypothesis: The 6-week remodeled bicycle pedal training is effective on the ankle joint control and muscle activation, and especially that of the ankle evertor muscle co-contraction to improve dynamic postural control during lateral shuffling for athletes with FAI. Study Design: Laboratory randomized controlled trial. Level of Evidence: Level 2. Methods: Fourteen healthy athletes (healthy group) and 26 athletes with FAI aged 18 to 30 years were included in the study. The athletes with FAI were randomly assigned to either the training group (FAI-T group) or the nontraining group (FAI-NT group). The athletes in the FAI-T group underwent 6 weeks of remodeled bicycle pedal training, whereas those in the FAI-NT group did not undergo any intervention. Muscle co-contraction index and muscle activation in the initial contact (IC) and propulsion phases, and ankle joint angle in the IC and propulsion phases were measured during lateral shuffling before and after 6 weeks of training. Results: After remodeled bicycle pedal training, the FAI-T group demonstrated greater muscle activation in the hamstring ( P = 0.01), greater muscle coactivation of the tibialis anterior (TA) and the peroneus longus ( P = 0.01), and greater ankle eversion angle in the IC phase. Significantly greater muscle activation of the TA ( P = 0.01), greater coactivation of quadriceps and hamstring ( P = 0.03), and a smaller ankle inversion angle ( P = 0.04) in the propulsion phase were observed in the FAI-T group after training compared with those in the FAI-NT group. Conclusion: Remodeled bicycle pedal training facilitates the TA and peroneus longus activation and the coactivation of the quadriceps and hamstring muscles during lateral shuffling and resulted in enhanced ankle and knee joint stability. In addition, a better ankle movement strategy during a dynamic task can be achieved via a 6-week remodeled pedal training program. Clinical Relevance: This remodeled bicycle pedal training can be effective for rehabilitating athletes with FAI to recover lateral dynamic movement capability.

Download Full-text

Influences of Functional Ankle Instability on Postural Control during Transitioning to One-leg Standing

Rigakuryoho Kagaku ◽

10.1589/rika.27.373 ◽

2012 ◽

Vol 27 (4) ◽

pp. 373-377

Author(s):

Masahide YAGI ◽

Kentaro SUZUKI ◽

Masaya ANAN ◽

Koichi SHINKODA

Keyword(s):

Postural Control ◽

Ankle Instability ◽

Functional Ankle Instability

Download Full-text

Effect of Neuromuscular Training on Postural Control and Jump Performance in Functional Ankle Instability Soccer Player

Korean Journal of Sport Biomechanics ◽

10.5103/kjsb.2014.24.3.295 ◽

2014 ◽

Vol 24 (3) ◽

pp. 295-300

Author(s):

Dae-Jung Yang ◽

Jeong-Il Kang ◽

Seung-Kyu Park ◽

Min-Ki Lee ◽

Yong-Sik Jeong

Keyword(s):

Postural Control ◽

Soccer Player ◽

Ankle Instability ◽

Neuromuscular Training ◽

Functional Ankle Instability ◽

Jump Performance

Download Full-text

The Effects of Lateral Ligaments Augmentation Using Suture-tape on Functional Ankle Instability

Foot & Ankle Orthopaedics ◽

10.1177/2473011419s00141 ◽

2019 ◽

Vol 4 (4) ◽

pp. 2473011419S0014

Author(s):

Byung-Ki Cho ◽

Seung-myung Choi

Keyword(s):

Postural Control ◽

Functional Outcomes ◽

Ankle Instability ◽

Peak Torque ◽

Functional Ankle Instability ◽

Unaffected Side ◽

Lateral Ligaments ◽

Patient Reported ◽

Final Followup ◽

Suture Tape

Category: Sports Introduction/Purpose: Although lateral ligaments augmentation using suture-tape has been effective for restoration of mechanical ankle stability, few data are available regarding changes of peroneal strength, proprioception and postural control. The aim of this study was to determine effects of suture-tape augmentation on functional ankle instability (FAI). Methods: Twenty-four patients that underwent suture-tape augmentation were eligible and were followed more than two years postoperatively. Functional outcomes were evaluated with the Cumberland Ankle Instability Tool (CAIT), Foot and Ankle Ability Measure (FAAM). Changes of peroneal strength, proprioception and postural control were analyzed with an isokinetic dynamometer and a modified Romberg test. Results: CAIT and FAAM significantly improved to average 27.2 points, 86.7 points at final followup. Peak torque for eversion in 60º/sec angular velocity significantly improved to 10.6 Nm at final followup. Deficit ratio of peak torque for eversion significantly improved from mean 39.5% to 20.9%, and significant side to side difference was revealed (P < .001). There were no significant differences in joint position sense. A significant improvement in balance retention time was revealed at final followup and relative deficit ratio compared to unaffected side was 30.9%. Conclusion: Patient-reported functional outcomes significantly improved after lateral ligaments augmentation using suture-tape. Although this procedure demonstrated significant effects on FAI based on improvement of isokinetic peroneal strength and postural control, recovery rates compared to the unaffected side were insufficient at the intermediate-term followup. In addition, there was no significantly positive effect on proprioception of the ankle.

Download Full-text