scholarly journals The Effect of Spine Stability Exercise on Dynamic Postural Control and Possibility to Have Ankle Injury in Basketball Players

2020 ◽  
Vol 2 (9) ◽  
Author(s):  
Dovilė Juknevičiūtė
Keyword(s):  
Postural Control ◽  
Ankle Sprain ◽  
Ankle Injury ◽  
Basketball Players ◽  
Balance Test ◽  
Ankle Ligaments ◽  
Spine Stability ◽  
Before And After ◽  
Ankle Trauma ◽  
Star Excursion Balance Test

Ankle ligaments injury is a common trauma in athletes, when proprioception, sensomotor control, muscle strength and balance are disturbed. Possibility to have trauma remains high, thus, trauma prevention plays a very important role. The aim of the study was to evaluate dynamic postural control and possibility to have ankle injury before and after spine stability exercise. Basketball players’ dynamic postural control was assessed using the modified Star Excursion Balance test and risk to experience ankle trauma – the calculation of the combined result. Before applying spine stability exercise basketball players who had not had degree II ankle sprain had better dynamic postural control in all directions than basketball players who had had degree II ankle sprain. After eight weeks of applying spine stability exercise dynamic postural control of basketball players who had had degree II ankle sprain improved significantly (p < 0.05) in all directions, dynamic postural control of but basketball players who not had degree II ankle sprain improved, but insignificantly (p > 0.05). Before applying spine stability exercise, 78% of basketball players who had had degree II ankle sprain and 22% basketball players who not had degree II ankle sprain had higher possibility to experience ankle trauma, but after eight weeks of spine stability exercise 11% of basketball players in both groups had higher possibility to experience ankle trauma. Spine stability exercise had positive effect on dynamic postural control and reduced possibility to experience ankle injury.Keywords: dynamic postural control, ankle injury, spine stability, modified Star Excursion Balance test.

scholarly journals Laboratory Measures of Postural Control During the Star Excursion Balance Test After Acute First-Time Lateral Ankle Sprain

2015 ◽  
Vol 50 (6) ◽  
pp. 651-664 ◽  
Author(s):  
Cailbhe Doherty ◽  
Chris M. Bleakley ◽  
Jay Hertel ◽  
Brian Caulfield ◽  
John Ryan ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Postural Control ◽  
Ankle Sprain ◽  
Control Group ◽  
Injured Limb ◽  
Balance Test ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
Star Excursion Balance Test ◽  
First Time

Context No researchers, to our knowledge, have investigated the immediate postinjury-movement strategies associated with acute first-time lateral ankle sprain (LAS) as quantified by center of pressure (COP) and kinematic analyses during performance of the Star Excursion Balance Test (SEBT). Objective To analyze the kinematic and COP patterns of a group with acute first-time LAS and a noninjured control group during performance of the SEBT. Design Case-control study. Setting University biomechanics laboratory. Patients or Other Participants A total of 81 participants with acute first-time LAS (53 men, 28 women; age = 23.22 ± 4.93 years, height = 1.73 ± 0.09 m, mass = 75.72 ± 13.86 kg) and 19 noninjured controls (15 men, 4 women; age = 22.53 ± 1.68 years, height = 1.74 ± 0.08 m, mass = 71.55 ± 11.31 kg). Intervention Participants performed the anterior (ANT), posterolateral (PL), and posteromedial (PM) reach directions of the SEBT. Main Outcome Measure(s) We assessed 3-dimensional kinematics of the lower extremity joints and associated fractal dimension (FD) of the COP path during performance of the SEBT. Results The LAS group had decreased normalized reach distances in the ANT, PL, and PM directions when compared with the control group on their injured (ANT: 58.16% ± 6.86% versus 64.86% ± 5.99%; PL: 85.64% ± 10.62% versus 101.14% ± 8.39%; PM: 94.89% ± 9.26% versus 107.29 ± 6.02%) and noninjured (ANT: 60.98% ± 6.74% versus 64.76% ± 5.02%; PL: 88.95% ± 11.45% versus 102.36% ± 8.53%; PM: 97.13% ± 8.76% versus 106.62% ± 5.78%) limbs (P &lt; .01). This observation was associated with altered temporal sagittal-plane kinematic profiles throughout each reach attempt and at the point of maximum reach (P &lt; .05). This result was associated with a reduced FD of the COP path for each reach direction on the injured limb only (P &lt; .05). Conclusions Acute first-time LAS was associated with bilateral deficits in postural control, as evidenced by the bilateral reduction in angular displacement of the lower extremity joints and reduced reach distances and FD of the COP path on the injured limb during performance of the SEBT.

scholarly journals Sex Differences, Hormone Fluctuations, Ankle Stability, and Dynamic Postural Control

2012 ◽  
Vol 47 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Hayley Ericksen ◽  
Phillip A. Gribble
Keyword(s):  
Menstrual Cycle ◽  
Postural Control ◽  
Repeated Measures ◽  
Balance Test ◽  
Healthy Women ◽  
Ankle Stability ◽  
Ankle Arthrometer ◽  
Main Effect ◽  
Star Excursion Balance Test ◽  
Anterior Posterior

Context: Hormonal fluctuation as a risk factor in anterior cruciate ligament injury has been investigated with conflicting results. However, the influence of hormone fluctuations on ankle laxity and function has not been thoroughly examined. Objective: To examine the potential hormone contributions to ankle laxity and dynamic postural control during the preovulatory and postovulatory phases of the menstrual cycle using an ankle arthrometer and the Star Excursion Balance Test in healthy women. The cohort group consisted of male control participants. Design: Cohort study. Setting: Research laboratory. Patients or Other Participants: Twenty healthy women (age = 23.8 ± 6.50 years, height = 163.88 ± 8.28 cm, mass = 63.08 ± 12.38 kg) and 20 healthy men (age = 23.90 ± 4.15 years, height = 177.07 ± 7.60 cm, mass = 80.57 ± 12.20 kg). Intervention(s): Ankle stability was assessed with anterior-posterior and inversion-eversion loading. Dynamic postural control was assessed with the posteromedial reaching distance of the Star Excursion Balance Test. Main Outcome Measure(s): Female participants used ovulation kits for 3 months to determine the time of ovulation; during their preovulatory and postovulatory phases, they were tested in the laboratory with an ankle arthrometer and the Star Excursion Balance Test. Male participants were tested on similar dates as controls. For each dependent variable, a time by side by sex repeated-measures analysis of variance was performed. Statistical significance was set a priori at P &lt; .05. Results: For anterior-posterior laxity, a side main effect was noted (F1,38 = 10.93, P = .002). For inversion-eversion laxity, a sex main effect was seen (F1,38 = 10.75, P = .002). For the posteromedial reaching task, a sex main effect was demonstrated (F1,38 = 8.72, P = .005). No influences of time on the dependent variables were evident. Conclusions: Although women presented with more ankle inversion-eversion laxity and less dynamic postural control, hormonal fluctuations during the menstrual cycle (preovulatory compared with postovulatory) did not affect ankle laxity or dynamic postural control, 2 factors that are associated with ankle instability.

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

2018 ◽  
Vol 43 (1) ◽  
pp. 6-11 ◽  
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.

scholarly journals Elite Female Basketball Players' Body-Weight Neuromuscular Training and Performance on the Y-Balance Test

2016 ◽  
Vol 51 (9) ◽  
pp. 688-695 ◽  
Author(s):  
Roberto Benis ◽  
Matteo Bonato ◽  
Antonio La Torre
Keyword(s):  
Body Weight ◽  
Postural Control ◽  
Lower Extremity Injury ◽  
Neuromuscular Training ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Joint Control ◽  
Basketball Players ◽  
Balance Test ◽  
Experimental Group

Context: Neuromuscular training enhances unconscious motor responses by stimulating both the afferent signals and central mechanisms responsible for dynamic joint control. Dynamic joint-control training is a vital component of injury-prevention programs. Objective: To investigate the effects of body-weight neuromuscular training on Y-Balance Test (YBT) performance and postural control in female basketball players. Design: Randomized controlled clinical trial. Setting: Basketball practice sessions. Patients or Other Participants: A total of 28 healthy elite female basketball players were randomly assigned to an experimental (n = 14) or a control group (n = 14). Intervention(s): Before their regular practice sessions, the experimental group warmed up with body-weight neuromuscular exercises and the control group with standard tactical-technical exercises twice weekly for 8 weeks. Main Outcome Measure(s): Anterior-, posteromedial-, and posterolateral-reach and composite YBT scores were measured before and after 8 weeks of training. Results: Improvement over baseline scores was noted in the posteromedial (right = 86.5 ± 4.5 cm versus 89.6 ± 2.2 cm, +3.5%, P = .049; left = 85.5 ± 4.3 cm versus 90.2 ± 2.7 cm, +5.5%, P = .038)- and posterolateral (right = 90.7 ± 3.6 cm versus 94.0 ± 2.7 cm, +3.6%, P = .016; left = 90.9 ± 3.5 cm versus 94.2 ± 2.6 cm, +3.6%, P = .011)-reach directions and in the composite YBT scores (right = 88.6% ± 3.2% versus 94.0% ± 1.8%, +5.4%, P = .0004; left = 89.2% ± 3.2% versus 94.5% ± 3.0%, +5.8%, P = .001) of the experimental group. No differences in anterior reach were detected in either group. Differences were noted in postintervention scores for posteromedial reach (right = 89.6 ± 2.2 cm versus 84.3 ± 4.4 cm, +4.1%, P = .005; left = 94.2 ± 2.6 cm versus 84.8 ± 4.4 cm, +10%, P = .003) and composite scores (right = 94.0% ± 1.8% versus 87.3% ± 2.0%, +7.1%, P = .003; left = 94.8% ± 3.0% versus 87.9% ± 3.4%, +7.3%, P &lt; .0001) between the experimental and control groups. Conclusions: Body-weight neuromuscular training improved postural control and lower limb stability in female basketball players as assessed with the YBT. Incorporating neuromuscular training into the workout routines for basketball players may enhance joint awareness and reduce the risk of lower extremity injury.

The Effects of Gender and Fatigue on Dynamic Postural Control

2009 ◽  
Vol 18 (2) ◽  
pp. 240-257 ◽  
Author(s):  
Phillip A. Gribble ◽  
Richard H. Robinson ◽  
Jay Hertel ◽  
Craig R. Denegar
Keyword(s):  
Postural Control ◽  
Outcome Measures ◽  
Performance Measures ◽  
Knee Flexion ◽  
Mixed Model ◽  
Sagittal Plane ◽  
Model Design ◽  
Balance Test ◽  
Before And After ◽  
And Gender

Context:Deficits in static postural control related to fatigue have been investigated previously, but there is little evidence to link fatigue to performance measures of dynamic postural control.Objective:To investigate the effects of fatigue and gender on performance measures of the Star Excursion Balance Test (SEBT).Design:Mixed-model design.Setting:Research laboratory.Participants:16 healthy young adults.Intervention:Subjects performed the SEBT before and after 4 different fatiguing conditions.Main Outcome Measures:The normalized reach distances and sagittal-plane kinematics of the knee and hip were recorded.Results:Fatigue produced deficits in normalized reach distances and decreased knee flexion in all 3 reaching directions. Overall, women were able to reach farther than men while simultaneously demonstrating a greater amount of knee flexion.Conclusions:Gender differences were observed during performance of the SEBT, with women demonstrating greater reach distances and knee flexion, and fatigue amplified these differences.

Postural Control Strategies are Dependent on Reach Direction in the Star Excursion Balance Test

2016 ◽  
Vol 21 (6) ◽  
pp. 33-39 ◽  
Author(s):  
Tyler R. Keith ◽  
Tara A. Condon ◽  
Ayana Phillips ◽  
Patrick O. McKeon ◽  
Deborah L. King
Keyword(s):  
Postural Control ◽  
Center Of Pressure ◽  
Control Strategies ◽  
Reliable Measure ◽  
Balance Test ◽  
Control Center ◽  
Additional Information ◽  
Star Excursion Balance Test ◽  
Anterior Direction

The Star Excursion Balance Test (SEBT) is a valid and reliable measure of dynamic postural control. Center of pressure (COP) behavior during the SEBT could provide additional information about direction-dependent SEBT balance strategies. The purpose of this study was to quantify spatiotemporal COP differences using COP area and velocity among three different SEBT reach directions (anterior, posteromedial, posterolateral). The anterior direction COP velocity was significantly lower than both posterior directions. However, the anterior COP area was significantly greater than posterior. Based on COP behavior, the anterior and posterior reach directions appear to use different postural control strategies on the SEBT.

scholarly journals Using Balance Tests to Discriminate Between Participants With a Recent Index Lateral Ankle Sprain and Healthy Control Participants: A Cross-Sectional Study

2016 ◽  
Vol 51 (3) ◽  
pp. 213-222 ◽  
Author(s):  
Fereshteh Pourkazemi ◽  
Claire Hiller ◽  
Jacqueline Raymond ◽  
Deborah Black ◽  
Elizabeth Nightingale ◽  
...  
Keyword(s):  
Discriminant Analysis ◽  
Ankle Sprain ◽  
Control Group ◽  
Stepwise Discriminant Analysis ◽  
Ankle Sprains ◽  
Balance Test ◽  
Cross Sectional ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
Star Excursion Balance Test

The first step to identifying factors that increase the risk of recurrent ankle sprains is to identify impairments after a first sprain and compare performance with individuals who have never sustained a sprain. Few researchers have restricted recruitment to a homogeneous group of patients with first sprains, thereby introducing the potential for confounding.Context: To identify impairments that differ in participants with a recent index lateral ankle sprain versus participants with no history of ankle sprain.Objective: Cross-sectional study.Design: We recruited a sample of convenience from May 2010 to April 2013 that included 70 volunteers (age = 27.4 ± 8.3 years, height = 168.7 ± 9.5 cm, mass = 65.0 ± 12.5 kg) serving as controls and 30 volunteers (age = 31.1 ± 13.3 years, height = 168.3 ± 9.1 cm, mass = 67.3 ± 13.7 kg) with index ankle sprains.Patients or Other Participants: We collected demographic and physical performance variables, including ankle-joint range of motion, balance (time to balance after perturbation, Star Excursion Balance Test, foot lifts during single-legged stance, demi-pointe balance test), proprioception, motor planning, inversion-eversion peak power, and timed stair tests. Discriminant analysis was conducted to determine the relationship between explanatory variables and sprain status. Sequential discriminant analysis was performed to identify the most relevant variables that explained the greatest variance.Main Outcome Measure(s): The average time since the sprain was 3.5 ± 1.5 months. The model, including all variables, correctly predicted a sprain status of 77% (n = 23) of the sprain group and 80% (n = 56) of the control group and explained 40% of the variance between groups ( = 42.16, P = .03). Backward stepwise discriminant analysis revealed associations between sprain status and only 2 tests: Star Excursion Balance Test in the anterior direction and foot lifts during single-legged stance ( = 15.2, P = .001). These 2 tests explained 15% of the between-groups variance and correctly predicted group membership of 63% (n = 19) of the sprain group and 69% (n = 48) of the control group.Results: Balance impairments were associated with a recent first ankle sprain, but proprioception, motor control, power, and function were not.Conclusions:

Concurrent and Discriminant Validity of the Star Excursion Balance Test for Military Personnel With Lateral Ankle Sprain

2014 ◽  
Vol 23 (1) ◽  
pp. 44-55 ◽  
Author(s):  
Maude Bastien ◽  
Hélène Moffet ◽  
Laurent Bouyer ◽  
Marc Perron ◽  
Luc J. Hébert ◽  
...  
Keyword(s):  
Motor Control ◽  
Ankle Sprain ◽  
Concurrent Validity ◽  
Discriminant Validity ◽  
Visual Estimation ◽  
Balance Test ◽  
Lateral Ankle Sprain ◽  
Lateral Ankle ◽  
Normalization Methods ◽  
Star Excursion Balance Test

The Star Excursion Balance Test (SEBT) has frequently been used to measure motor control and residual functional deficits at different stages of recovery from lateral ankle sprain (LAS) in various populations. However, the validity of the measure used to characterize performance—the maximal reach distance (MRD) measured by visual estimation—is still unknown.Objectives:To evaluate the concurrent validity of the MRD in the SEBT estimated visually vs the MRD measured with a 3D motion-capture system and evaluate and compare the discriminant validity of 2 MRD-normalization methods (by height or by lower-limb length) in participants with or without LAS (n = 10 per group).Results:There is a high concurrent validity and a good degree of accuracy between the visual estimation measurement and the MRD gold-standard measurement for both groups and under all conditions. The Cohen d ratios between groups and MANOVA products were higher when computed from MRD data normalized by height.Conclusion:The results support the concurrent validity of visual estimation of the MRD and the use of the SEBT to evaluate motor control. Moreover, normalization of MRD data by height appears to increase the discriminant validity of this test.

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