Ice Application Effects on Peroneus Longus and Tibialis Anterior Motoneuron Excitability in Subjects with Functional Ankle Instability

2010 ◽  
Vol 120 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Jeffrey R. Doeringer ◽  
Matthew C. Hoch ◽  
B. Andrew Krause
Keyword(s):  
Tibialis Anterior ◽  
Ankle Instability ◽  
Functional Ankle Instability ◽  
Peroneus Longus ◽  
Motoneuron Excitability

Arthrogenic Muscle Inhibition in the Leg Muscles of Subjects Exhibiting Functional Ankle Instability

2005 ◽  
Vol 26 (12) ◽  
pp. 1055-1061 ◽  
Author(s):  
Eric D. McVey ◽  
Riann M. Palmieri ◽  
Carrie L. Docherty ◽  
Steven M. Zinder ◽  
Christopher D. Ingersoll
Keyword(s):  
Tibialis Anterior ◽  
Ankle Instability ◽  
H Reflex ◽  
Functional Ankle Instability ◽  
Injured Limb ◽  
Lateral Ankle ◽  
M Wave ◽  
Muscle Inhibition ◽  
Lateral Ankle Ligaments ◽  
Arthrogenic Muscle Inhibition

Background: Functional ankle instability or a subjective report of “giving way” at the ankle may be present in up to 40% of patients after a lateral ankle sprain. Damage to mechanoreceptors within the lateral ankle ligaments after injury is hypothesized to interrupt neurologic feedback mechanisms resulting in functional ankle instability. The altered input can lead to weakness of muscles surrounding a joint, or arthrogenic muscle inhibition. Arthrogenic muscle inhibition may be the underlying cause of functional ankle instability. Establishing the involvement of arthrogenic muscle inhibition in functional ankle instability is critical to understanding the underlying mechanisms or chronic ankle instability. The purpose of this investigation was to determine if arthrogenic muscle inhibition is present in the ankle joint musculature of patients exhibiting unilateral functional ankle instability. Methods: Twenty-nine subjects, 15 with unilateral functional ankle instability and 14 healthy control subjects, consented to participate. Bilateral soleus, peroneal, and tibialis anterior H-reflex and M-wave recruitment curves were obtained. Maximal H-reflex and maximal M-wave values were identified and the H:M ratios were calculated for data analysis. Separate 1 × 2 ANOVA were done for both the functional ankle instability and control groups to evaluate differences between limbs on the H:M ratios. Bonferroni multiple comparison procedures were used for post hoc comparisons ( p ≤ 0.05). Results: The soleus and peroneal H:M ratios for subjects with functional ankle instability were smaller in the injured limb when compared with the uninjured limb (p < 0.05). No limb difference was detected for the tibialis anterior H:M ratio in the functional ankle instability group ( p = 0.904). No side-to-side differences were detected for the H:M ratios in patients reporting no history of ankle injury ( p > 0.05). Conclusions: Depressed H:M ratios in the injured limb suggest that arthrogenic muscle inhibition is present in the ankle musculature of patients exhibiting functional ankle instability. Establishing and using therapeutic techniques to reverse arthrogenic muscle inhibition may reduce the incidence of functional ankle instability.

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.

scholarly journals Tensiomyographic Neuromuscular Response of the Peroneus Longus and Tibialis Anterior with Chronic Ankle Instability

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 707
Author(s):  
Tsubasa Tashiro ◽  
Noriaki Maeda ◽  
Junpei Sasadai ◽  
Somu Kotoshiba ◽  
Shogo Sakai ◽  
...  
Keyword(s):  
Tibialis Anterior ◽  
Contractile Response ◽  
Ankle Instability ◽  
Muscle Thickness ◽  
Contraction Time ◽  
Peroneus Longus ◽  
Significant Difference ◽  
Maximum Work ◽  
Work Done ◽  
Muscle Contractile

This study aimed to investigate the muscle contractile response of the peroneus longus (PL) and tibialis anterior (TA) in groups with and without chronic ankle instability (CAI) using tensiomyography. Twenty-three adults, 12 with CAI and 11 healthy participants, participated in this study. All subjects underwent a tensiomyographic assessment of the PL and TA to measure delay time, contraction time and maximal displacement. The ankle evertor and invertor normalized peak torques, maximum work done and muscle thickness of the PL and TA were calculated. The delay time and contraction time of the PL in the CAI side were significantly higher than those in the healthy group (p < 0.05); however, no significant difference could be detected in the TA between groups. Furthermore, there was no significant difference in the normalized peak torques, maximum work done and muscle thickness of the PL and TA between groups. The CAI side demonstrated a delayed muscle contractile response of the PL when compared with the healthy group although there was no difference in muscle strength and muscle size. Clinicians should consider the muscle contractile response of the PL for rehabilitation of the ankle evertor with CAI.

Peroneus Longus Muscle Activation Pattern during Gait Cycle in Athletes Affected by Functional Ankle Instability

2005 ◽  
Vol 33 (8) ◽  
pp. 1183-1187 ◽  
Author(s):  
Valter Santilli ◽  
Massimo A. Frascarelli ◽  
Marco Paoloni ◽  
Flaminia Frascarelli ◽  
Filippo Camerota ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Muscle Activation ◽  
Gait Cycle ◽  
Ankle Instability ◽  
Activation Pattern ◽  
Activation Time ◽  
Functional Ankle Instability ◽  
Peroneus Longus ◽  
Injured Side ◽  
Longus Muscle

Background Functional ankle instability is a clinical syndrome that may develop after acute lateral ankle sprain. Although several causes of this functional instability have been suggested, it is still unclear what the activation pattern of the peroneus longus muscle is in patients with functional ankle instability. Hypothesis Peroneus longus activation patterns differ in the injured side and the uninjured side in subjects with functional ankle instability. Study Design Descriptive laboratory study. Methods The authors examined 14 subjects with functional ankle instability by using surface electromyography during walking. Activation time of the peroneus longus muscle was expressed as a percentage of the stance phase of the gait cycle. Results A statistically significant decrease in peroneus longus muscle activity was found in the injured side compared with the uninjured side (22.8% ± 4.25% vs 37.6% ± 3.5%, respectively). Conclusions Results obtained in this study show a change in peroneus longus muscle activation time after injury. Independent of the origin of this change, which could only be surmised, the decrease in peroneus longus muscle activity may result in reduced protection against lateral sprains. Clinical Relevance The assessment of peroneus longus activation pattern during gait is useful to design an appropriate rehabilitation program in athletes suffering from functional ankle instability.

scholarly journals Muscle Activation During Landing Before and After Fatigue in Individuals With or Without Chronic Ankle Instability

2016 ◽  
Vol 51 (8) ◽  
pp. 629-636 ◽  
Author(s):  
Kathryn A. Webster ◽  
Brian G. Pietrosimone ◽  
Phillip A. Gribble
Keyword(s):  
Effect Size ◽  
Tibialis Anterior ◽  
Muscle Activation ◽  
Ankle Instability ◽  
Gluteus Maximus ◽  
Gluteus Medius ◽  
Control Group ◽  
Physically Active ◽  
Peroneus Longus ◽  
Before And After

Context: Ankle instability is a common condition in physically active individuals. It often occurs during a jump landing or lateral motion, particularly when participants are fatigued. Objective: To compare muscle activation during a lateral hop prefatigue and postfatigue in individuals with or without chronic ankle instability (CAI). Design: Cross-sectional study. Setting: Sports medicine research laboratory. Patients or Other Participants: A total of 32 physically active participants volunteered for the study. Sixteen participants with CAI (8 men, 8 women; age = 20.50 ± 2.00 years, height = 172.25 ± 10.87 cm, mass = 69.13 ± 13.31 kg) were matched with 16 control participants without CAI (8 men, 8 women; age = 22.00 ± 3.30 years, height = 170.50 ± 9.94 cm, mass = 69.63 ± 14.82 kg) by age, height, mass, sex, and affected side. Intervention(s): Electromyography of the tibialis anterior, peroneus longus, gluteus medius, and gluteus maximus was measured before and after a functional fatigue protocol. Main Outcome Measure(s): Activation of 4 lower extremity muscles was measured 200 milliseconds before and after landing from a lateral hop. Results: We observed no interactions. The group main effects for the peroneus longus demonstrated higher muscle activation in the CAI group (52.89% ± 11.36%) than in the control group (41.12% ± 11.36%) just before landing the lateral hop (F1,30 = 8.58, P = .01), with a strong effect size (d = 1.01). The gluteus maximus also demonstrated higher muscle activation in the CAI group (45.55% ± 12.08%) than in the control group (36.81% ± 12.08%) just before landing the lateral hop (F1,30 = 4.19, P = .049), with a moderate effect size (d = 0.71). We observed a main effect for fatigue for the tibialis anterior, with postfatigue activation higher than prefatigue activation (F1,30 = 7.45, P = .01). No differences were present between groups for the gluteus medius. Conclusions: Our results support the presence of a centralized feed-forward neuromuscular alteration in patients with CAI, not only in the ankle-joint muscles but also in the proximal hip muscles. These results may have implications for rehabilitation programs in these patients.

scholarly journals Impact of kinesiophobia on physical function and quality of life in functional ankle instability individuals: an observational study

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Prachita P. Walankar ◽  
Vrushali P. Panhale ◽  
Kanchi M. Vyas
Keyword(s):  
Quality Of Life ◽  
Physical Function ◽  
Negative Correlation ◽  
Ankle Instability ◽  
Cross Sectional Study ◽  
Functional Ankle Instability ◽  
Cross Sectional ◽  
Sf 36 ◽  
Related Quality

Abstract Background Functional ankle instability is a common musculoskeletal condition affecting the community. It is characterized by repetitive bouts of giving away, recurrent sprains, and sensation of instability leading to functional deficits in an individual. The present study aimed to assess the influence of kinesiophobia on physical function and quality of life in participants with functional ankle instability. A cross-sectional study was conducted in 30 participants with functional ankle instability. Kinesiophobia was assessed using the 17-item Tampa Scale of Kinesiophobia, physical function using the Foot and Ankle Ability Measure (FAAM) and the FAAM-Sport version (FAAM-S), and quality of life using SF-36. Results The TSK score showed a moderate negative correlation with FAAM-S (r = −0.5, p = 0.005) and a weak negative correlation with SF-36 physical component summary (r = −0.42, p = 0.02). However, TSK showed no significant correlation with FAAM-ADL and SF-36 mental component summary. Conclusion Increased fear of movement, reduced physical function, and health-related quality of life were observed in functional ankle instability individuals. Hence, evaluation of these parameters is imperative in these individuals.

In Vivo Kinematics of Functional Ankle Instability Patients and Lateral Ankle Sprain Copers During Stair Descent

2019 ◽  
Vol 37 (8) ◽  
pp. 1860-1867 ◽  
Author(s):  
Shengxuan Cao ◽  
Chen Wang ◽  
Xin Ma ◽  
Xu Wang ◽  
Jiazhang Huang ◽  
...  
Keyword(s):  
Ankle Sprain ◽  
Ankle Instability ◽  
Functional Ankle Instability ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
In Vivo Kinematics ◽  
Stair Descent
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