Hip Flexibility and Dynamic Balance Ability in Soccer Players with Functional Ankle Instability

The prevention of recurrent ankle sprain and functional ankle instability in soccer players is essential. This study clarified hip joint mobility and dynamic balance ability in soccer players with functional ankle instability. This case–control study included 17 male college soccer players. All participants were assessed using the Cumberland Ankle Instability Tool and were divided into chronic ankle instability (CAI) and non-CAI groups for each of their dominant and nondominant legs. Bilateral passive hip range of motion (ROM) was assessed and the modified Star Excursion Balance Test (mSEBT) was measured for each leg. In the dominant leg, the reach in the posterolateral direction in the CAI group was significantly less than that in the non-CAI group. Hip internal rotation angles in the dominant leg in the CAI group were greater than those in the non-CAI group; however, no significant correlations with the three directions of mSEBT were observed. In the nondominant leg, mSEBT and hip ROMs did not show any significant differences between groups. The dominant leg in soccer players with CAI had poor dynamic balance ability while reaching posterolaterally. However, acquiring hip flexibility may not be necessary to improve the dynamic balance ability. These findings may help develop future research.

Download Full-text

Impact of Virtual Reality Based Neuromuscular Postural Control Fusion Training on Balance Ability and Jump Performance of Soccer Players with Functional Ankle Instability

Journal of Digital Convergence ◽

10.14400/jdc.2016.14.11.357 ◽

2016 ◽

Vol 14 (11) ◽

pp. 357-367

Author(s):

Dae-Jung Yang ◽

Seung-Kyu Park ◽

Yo-Han Uhm

Keyword(s):

Virtual Reality ◽

Postural Control ◽

Ankle Instability ◽

Soccer Players ◽

Functional Ankle Instability ◽

Jump Performance ◽

Balance Ability ◽

Control Fusion

Download Full-text

Comparison of Two Rehabilitation Protocols on Patient- and Disease-Oriented Outcomes in Individuals With Chronic Ankle Instability

International Journal of Athletic Therapy & Training ◽

10.1123/ijatt.2016-0054 ◽

2017 ◽

Vol 22 (3) ◽

pp. 57-65 ◽

Cited By ~ 3

Author(s):

Kyle Kosik ◽

Masafumi Treada ◽

Ryan McCann ◽

Samantha Boland ◽

Phillip A. Gribble

Keyword(s):

Ankle Instability ◽

Dynamic Balance ◽

Controlled Trial ◽

Intervention Programs ◽

Foot And Ankle ◽

Balance Test ◽

Randomized Controlled ◽

Rehabilitation Protocols ◽

Main Effect ◽

Ability Measure

Proximal neuromuscular alterations are hypothesized to contribute to the patient- and disease-oriented deficits observed in CAI individuals. The objective was to compare the efficacy of two 4-week intervention programs with or without proximal joint exercises. Twenty-three individuals with CAI completed this single-blinded randomized controlled trial. Outcome measures included the Star Excursion Balance Test (SEBT) and the Foot and Ankle Ability Measure (FAAM). A time main effect was observed for the FAAM-ADL (p = .013), FAAM-Sport (p = .012), and posteromedial (p = .04) and posterolateral (p = .003) SEBT reach directions. No group main effect or time by group interaction was found. Four weeks of supervised rehabilitation improved self-reported function and dynamic balance in people with CAI.

Download Full-text

Comparison of the effect of foot orthoses on Star Excursion Balance Test performance in patients with chronic ankle instability

Prosthetics and Orthotics International ◽

10.1177/0309364618792718 ◽

2018 ◽

Vol 43 (1) ◽

pp. 6-11 ◽

Cited By ~ 3

Author(s):

Faezeh Abbasi ◽

Mahmood bahramizadeh ◽

Mohammad Hadadi

Keyword(s):

Ankle Sprain ◽

Ankle Instability ◽

Dynamic Balance ◽

Chronic Ankle Instability ◽

Textured Surface ◽

Foot Orthoses ◽

Textured Surfaces ◽

Balance Test ◽

Star Excursion Balance Test ◽

Foot Orthosis

Background: Chronic ankle instability as a prevalent consequence of ankle sprain causes various impairments such as balance and postural control deficits. Foot orthoses are one of the common interventions for rehabilitation of patients with chronic ankle instability. Objectives: To investigate the effect of custom-molded foot orthoses with textured surfaces on dynamic balance of chronic ankle instability patients and to compare their effects with other types of foot orthoses. Study design: This is a repeated measure design. Methods: A total of 30 participants were recruited based on the guideline introduced by the International Ankle Consortium. The effect of prefabricated, custom-molded, and custom-molded with textured surface foot orthoses was evaluated on dynamic balance by the Star Excursion Balance Test. Normalized reach distances in anteromedial, medial, and posteromedial directions of the test were computed to be used for statistical analysis. Results: The foot orthoses increased reach distances compared to the no-orthosis conditions in all three directions. The custom-molded with textured surface foot orthosis has significant differences compared with prefabricated foot orthosis ( p = 0.001) in all measured directions and with custom-molded foot orthosis ( p < 0.01) in medial and posteromedial directions. Conclusion: Foot orthoses improve reach distances in patients with chronic ankle instability. Custom-molded with textured surface foot orthosis has a more pronounced effect compared with other foot orthoses. Clinical relevance The custom-molded foot orthosis with textured surface could be an effective device to improve dynamic balance in chronic ankle instability (CAI) patients. It may be considered as an efficient intervention to reduce ankle sprain recurrence in these individuals, although further research should be conducted.

Download Full-text

Acceleration and Jerk After a Jump Stabilization Task in Individuals With and Without Chronic Ankle Instability

Journal of Applied Biomechanics ◽

10.1123/jab.2020-0104 ◽

2021 ◽

pp. 1-6

Author(s):

Kyle B. Kosik ◽

Kathryn Lucas ◽

Matthew C. Hoch ◽

Jacob T. Hartzell ◽

Katherine A. Bain ◽

...

Keyword(s):

Confidence Interval ◽

Ankle Instability ◽

Dynamic Balance ◽

Vertical Jump ◽

Chronic Ankle Instability ◽

Mean Difference ◽

Vertical Jump Height ◽

Study Participants ◽

Third Derivative ◽

Control Study

Studies have demonstrated that individuals with chronic ankle instability (CAI) have diminished dynamic stability. Jerk-based measures have been utilized to examine dynamic balance because of their ability to quantify changes in acceleration and may provide an understanding of the postural corrections that occur during stabilizing following a jumping task. The purpose of this study was to compare acceleration and jerk following a jump stabilization task between individuals with CAI and the uninjured controls. Thirty-nine participants volunteered to participate in this case control study. Participants completed a jump stabilization task requiring them to jump off 2 feet, touch a marker set at 50% of their maximal vertical jump height, land on a single limb, and maintain balance for 3 seconds. Acceleration was calculated as the second derivative, and jerk was calculated as the third derivative of the displacement of the resultant vector position. Participants with CAI had greater acceleration (mean difference = 55.6 cm/s2; 95% confidence interval, 10.3 to 100.90; P = .017) and jerk compared with the uninjured controls (mean difference = 1804.5 cm/s3; 95% confidence interval, 98.7 to 3510.3; P = .039). These results suggest that individuals with CAI made faster and more frequent active postural control corrections to regain balance following a jump compared with the uninjured controls.

Download Full-text

Dynamic Leap and Balance Test: Ability to Discriminate Balance Deficits in Individuals With Chronic Ankle Instability

Journal of Sport Rehabilitation ◽

10.1123/jsr.2018-0380 ◽

2020 ◽

Vol 29 (3) ◽

pp. 263-270 ◽

Cited By ~ 1

Author(s):

Abbis H. Jaffri ◽

Thomas M. Newman ◽

Brent I. Smith ◽

Giampietro L. Vairo ◽

Craig R. Denegar ◽

...

Keyword(s):

Dynamic Stability ◽

Healthy Subjects ◽

Ankle Instability ◽

Dynamic Balance ◽

Chronic Ankle Instability ◽

Assessment Tools ◽

Balance Test ◽

Balance Task ◽

History Of ◽

Base Of Support

Context: The Dynamic Leap Balance Test (DLBT) is a new dynamic balance task that requires serial changes in base of support with alternating limb support and recovery of dynamic stability, as compared with the Y modification of the Star Excursion Balance Test (Y-SEBT), which assesses dynamic stability over an unchanging base of support. Objectives: To assess the dynamic balance performance in 2 different types of dynamic balance tasks, the DLBT and the SEBT, in subjects with unilateral chronic ankle instability (CAI) when compared with matched controls. The authors hypothesized that the DLBT score would significantly differ between the CAI involved and uninvolved limbs (contralateral and healthy matched) and demonstrate a modest (r = .50) association with the SEBT scores. Design: Case-control. Setting: Controlled laboratory. Participants: A total of 36 physically active adults, 18 with history of unilateral CAI and 18 without history of ankle injury, were enrolled in the study. CAI subjects were identified using the Identification of Functional Ankle Instability questionnaire. Interventions: The DLBT and the SEBT were performed in a randomized order on a randomly selected limb in CAI and healthy subjects. Main Outcome Measures: Time taken to complete the DLBT and the reach distances performed on the SEBT were compared between the CAI and the healthy subjects. Results: There were no statistically significant differences (P < .05) in SEBT reach distances between groups. The DLBT time was greater (P < .01) for unstable ankles compared with the stable ankle. The authors found no correlation (P > .05) between DLBT time and any of the SEBT reach distances suggesting that the DLBT provides unique information in the assessment of patients with CAI. Conclusion: The DLBT challenges the ability to maintain postural control in CAI subjects differently than the SEBT. There is a need of more dynamic balance assessment tools that are functional and clinically relevant.

Download Full-text

Effect of Plyometric versus Ankle Stability Exercises on Lower Limb Biomechanics in Taekwondo Demonstration Athletes with Functional Ankle Instability

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17103665 ◽

2020 ◽

Vol 17 (10) ◽

pp. 3665

Author(s):

Ha Min Lee ◽

Seunghue Oh ◽

Jung Won Kwon

Keyword(s):

Kinetic Parameters ◽

Lower Limb ◽

Ankle Instability ◽

Dynamic Balance ◽

Exercise Group ◽

T Test ◽

Functional Ankle Instability ◽

Shock Absorption ◽

Ankle Stability ◽

Plyometric Exercise

Background: This study aimed to compare the effects of plyometric and ankle stability exercises on the dynamic balance and lower limb kinematic and kinetic parameters of Taekwondo demonstration athletes with functional ankle instability. Methods: Fourteen subjects participated in this study and were randomly divided into two groups: a plyometric exercise group (n = 7) and an ankle stability exercise group (n = 7). Exercises were performed twice a week for 8 weeks. A Y-balance test was used to measure dynamic balance, and a motion analysis system and force plate were used to collect kinematic and kinetic parameters during single-leg drop landing. A paired t-test was used for intragroup comparisons, and an independent t-test was used for intergroup comparisons. Results: In both groups, exercise increased dynamic balance and shock absorption and reduced postural sway on the anteroposterior displacement (p < 0.05). The plyometric exercise group decreased their ankle dorsiflexion and increased their knee and hip joint flexion at maximum knee flexion (p < 0.05). In contrast, the stability exercise increased their ankle plantar flexion at initial contact (p < 0.05). Conclusions: The plyometric exercise group altered their landing strategies using their knee and hip joints to control ankle instability at landing. This study suggests that the application of plyometric exercises in ankle rehabilitation would improve stability and shock absorption and help prevent injuries during Taekwondo demonstrations.

Download Full-text

Improvements in strength and functional performance after Kinesio taping in semi-professional male soccer players with and without functional ankle instability

The Foot ◽

10.1016/j.foot.2019.06.006 ◽

2019 ◽

Vol 41 ◽

pp. 12-18 ◽

Cited By ~ 1

Author(s):

Sara Fereydounnia ◽

Azadeh Shadmehr ◽

Behrouz Attarbashi Moghadam ◽

Saeed Talebian Moghadam ◽

Seyed Mohsen Mir ◽

...

Keyword(s):

Functional Performance ◽

Ankle Instability ◽

Soccer Players ◽

Functional Ankle Instability ◽

Kinesio Taping

Download Full-text

Discriminative validity of the lower and upper quarter Y balance test performance: a comparison between healthy trained and untrained youth

BMC Sports Science Medicine and Rehabilitation ◽

10.1186/s13102-020-00220-w ◽

2020 ◽

Vol 12 (1) ◽

Author(s):

Gerrit Schwiertz ◽

Rainer Beurskens ◽

Thomas Muehlbauer

Keyword(s):

Test Performance ◽

Dynamic Balance ◽

Characteristic Curve ◽

Area Under The Curve ◽

Receiver Operator Characteristic Curve ◽

Soccer Players ◽

Balance Test ◽

Discriminative Validity ◽

Youth Athletes ◽

Male Subjects

Abstract Background The Lower (YBT-LQ) and Upper (YBT-UQ) Quarter Y Balance Test have been widely used for the assessment of dynamic balance and shoulder mobility/stability, respectively. However, investigations on the validity of the two tests in youth are lacking. Therefore, we performed two studies to determine discriminative validity of the YBT-LQ (study 1) and the YBT-UQ (study 2) in healthy youth. Methods Sixty-nine male soccer players (age: 14.4 ± 1.9 yrs) and 69 age-matched untrained male subjects (14.3 ± 1.6 yrs) participated in study 1 and 37 young swimmers (age: 12.3 ± 2.1 yrs) as well as 37 age−/sex-matched individuals (age: 12.5 ± 2.0 yrs) took part in study 2. Absolute (cm) and relative (% leg/arm length) maximal reach distances per reach direction and the composite score of the YBT-LQ/UQ were used as outcome measures. One-way analysis of variance and the receiver operator characteristic curve analysis (i.e., calculating the area under the curve [AUC]) were conducted to assess discriminative validity. Results Concerning the relative values, youth athletes showed significantly better YBT-LQ (study 1: p < 0.001, d = 0.86–1.21) and YBT-UQ (study 2: p < 0.001, d = 0.88–1.48) test performances compared to age- and sex-matched untrained subjects. Further, AUC-values indicated a chance of ≥74% (YBT-LQ) and ≥ 71% (YBT-UQ) to discriminate between youth athletes and controls. These findings were confirmed when using the absolute data for analysis. Conclusions According to our results, the YBT-LQ and the YBT-UQ seem to be useful test instruments to discriminate trained and untrained healthy youth performance for dynamic balance and shoulder mobility/stability, respectively.

Download Full-text