Longer reaction time of the fibularis longus muscle and reduced postural control in basketball players with functional ankle instability: A pilot study

2015 ◽  
Vol 16 (3) ◽  
pp. 242-247 ◽  
Author(s):  
Guillermo Méndez-Rebolledo ◽  
Eduardo Guzmán-Muñoz ◽  
Valeska Gatica-Rojas ◽  
Hermann Zbinden-Foncea
Keyword(s):  
Reaction Time ◽  
Pilot Study ◽  
Postural Control ◽  
Ankle Instability ◽  
Functional Ankle Instability ◽  
Basketball Players ◽  
Longus Muscle

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

2021 ◽  
pp. 026921552110102
Author(s):  
Niloofar Mohammadi ◽  
Mohammad-Reza Hadian ◽  
Gholam-Reza Olyaei
Keyword(s):  
Clinical Trial ◽  
Reaction Time ◽  
Randomized Clinical Trial ◽  
Ankle Instability ◽  
Neurocognitive Function ◽  
Control Group ◽  
Functional Abilities ◽  
Functional Ankle Instability ◽  
Basketball Players ◽  
Hop Tests

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.

A New Dimension in the Study of Human Functional Joint Instability

2012 ◽  
Vol 249-250 ◽  
pp. 1271-1276
Author(s):  
Wen Liu ◽  
Tarang Jain ◽  
Clayton Wauneka
Keyword(s):  
Electrical Stimulation ◽  
Pilot Study ◽  
Joint Instability ◽  
Ankle Instability ◽  
Soft Tissue Injuries ◽  
Functional Ankle Instability ◽  
The Past ◽  
Upright Standing ◽  
Unloading Reaction ◽  
Testing Condition

Functional joint instability is common after joint soft tissue injuries. We present in this report our pilot finding in a study of functional ankle instability. Although past studies have suggested multiple pathological factors for functional ankle instability, none of those factors has been confirmed in the past studies. More importantly, no known factor can provide an explanation for an ankle giving way phenomenon which is a key element in defining a functional ankle instability. In this pilot study, we tested five subjects with functional ankle instability using a dynamic ankle stretching device combined with nociceptive electrical stimulation. Three out of five subjects showed a drastic reaction in which they totally gave up their control of upright standing after their affected ankles were under the combined ankle stretch and nociceptive stimuli. Such drastic reaction was not observed in the same ankles under only the ankle stretch. There was no such drastic reaction in the unaffected ankle under either testing condition. This pilot finding indicates a possibility of a hyper-reactivity to unloading reaction in the ankles with functional ankle instability

Relationship Between Functional Ankle Instability and Postural Control

2008 ◽  
Vol 38 (12) ◽  
pp. 782-789 ◽  
Author(s):  
Marcos De Noronha ◽  
Kathryn M. Refshauge ◽  
Jack Crosbie ◽  
Sharon L. Kilbreath
Keyword(s):  
Postural Control ◽  
Ankle Instability ◽  
Functional Ankle Instability

Effect of Lateral Ligament Augmentation Using Suture-Tape on Functional Ankle Instability

2019 ◽  
Vol 40 (4) ◽  
pp. 447-456 ◽  
Author(s):  
Byung-Ki Cho ◽  
Seok-Hyun Hong ◽  
Jae-Hyeon Jeon
Keyword(s):  
Postural Control ◽  
Functional Outcomes ◽  
Ankle Instability ◽  
Peak Torque ◽  
Lateral Ligament ◽  
Functional Ankle Instability ◽  
Unaffected Side ◽  
Ligament Augmentation ◽  
Suture Tape

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.

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

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.

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