Ankle Joint Proprioception and Postural Control in Basketball Players with Bilateral Ankle Sprains

2005 ◽  
Vol 33 (8) ◽  
pp. 1174-1182 ◽  
Author(s):  
Amy S. N. Fu ◽  
Christina W. Y. Hui-Chan
Keyword(s):  
Standard Deviation ◽  
Postural Control ◽  
Ankle Joint ◽  
Postural Sway ◽  
Plantar Flexion ◽  
Ankle Sprains ◽  
Sensory Organization Test ◽  
Basketball Players ◽  
Dynamic Posturography ◽  
Sensory Organization

Background Deficiencies in ankle proprioception and standing balance in basketball players with multiple ankle sprains have been reported in separate studies. However, the question of how ankle proprioceptive inputs and postural control in stance are related is still unclear. Hypothesis Ankle repositioning errors and the amount of postural sway in stance are increased in basketball players with multiple ankle sprains. Study Design Controlled laboratory study. Methods Twenty healthy male basketball players and 19 male basketball players who had suffered bilateral ankle sprains within the past 2 years were examined. Both groups were similar in age. Passive ankle joint repositioning errors at 5° of plantar flexion were used to test for ankle joint proprioception. The Sensory Organization Test was applied with dynamic posturography to assess postural sway angle under 6 sensory conditions. Results A significant increase in ankle repositioning errors was demonstrated in basketball players with bilateral ankle sprains (P < .05). The mean errors in the right and left ankles were increased from 1.0° (standard deviation, 0.4°) and 0.8° (standard deviation, 0.2°), respectively, in the healthy players to 1.4° (standard deviation, 0.7°) and 1.1° (standard deviation, 0.5°) in the injured group. A significant increase in the amount of postural sway in the injured subjects was also found in conditions 1, 2, and 5 of the Sensory Organization Test (P < .05). Furthermore, there were positive associations between averaged errors in repositioning both ankles and postural sway angles in conditions 1, 2, and 3 of the Sensory Organization Test (r = 0.39-0.54, P < .05). Conclusions Ankle repositioning errors and postural sway in stance increased in basketball players with multiple ankle sprains. A positive relationship was found between these 2 variables. Clinical Relevance Such findings highlight the need for the rehabilitation of patients with multiple ankle sprains to include proprioceptive and balance training.

Postural control among normal population of different age groups

2016 ◽  
Vol 3 (1) ◽  
pp. 17
Author(s):  
Naema Ismail ◽  
Gehan S. Abd El-Salam ◽  
Asmaa Fathi
Keyword(s):  
Postural Control ◽  
Age Groups ◽  
The Elderly ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Limits Of Stability ◽  
Sensory Organization ◽  
Directional Control ◽  
Significant Difference ◽  
Weight Shift

<p class="abstract"><strong>Background:</strong> Postural control continues to change in later stages of life. Age-related changes may occur within or between sub-systems involved in postural control. It is thought clinically that these changes are important as they often result in falls &amp; injury. The aim of the work was to compare the balance characteristics among different age groups using computerized dynamic posturography to provide clinicians with normal references<span lang="EN-IN">. </span></p><p class="abstract"><strong>Methods:</strong> Inclusion criteria were study group consisted of (30) normal healthy individuals, age range 16-79 years, with neither hearing nor vestibular complaints. It was divided into 3 age groups, each group consisted of 10 patients. Group (A) young- 16-39 years, group (B) middle- 40-59 years and group (C) elderly- 60-79 years. Exclusion criteria were history of neuromuscular or neuroskeletal disease, symptoms of unsteadiness, dizziness or vertigo, symptoms of impaired sensory function, symptoms of arthritis or lower limb problem, symptoms of uncorrected visual problems, symptoms of postural hypotension or diabetes, medication intake such as sedatives, hypnotics, anxiolytics &amp; antidepressants.  All participants were subjected to full history taking, otologic examination, basic audiologic evaluation, computerized dynamic posturography which included sensory organization test, limits of stability and rhythmic weight shift<span lang="EN-IN">.  </span></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">Sensory organization test: The elderly group (C) had lowest equilibrium score with eyes open, closed &amp; with conflicted visual cues on swayed surface (condition 6) and also this group have lowest percentage of SOT strategy. There was a statistically significant difference among A &amp; C groups when using sensory organization test strategy in all conditions. Limits of stability test: The elderly group has higher overall reaction time. There was statistically significant difference in all conditions of limits of stability as regards directional control. Rhythmic weight shift right and left test: There was a statistically significant difference between groups A &amp; C in low &amp; medium speed on on-axis velocity &amp; directional control. Rhythmic weight shift front &amp; back test: There was no statistically significant difference between all groups as regards on-axis velocity. There was highly statistically significant difference between all groups in all trials as regards directional control.</span></p><p class="abstract"><strong>Conclusions:</strong> Postural instability occurs frequently in healthy elderly subjects. Sensory organization test is the most effective test to compare balance function among different age groups<span lang="EN-IN">.</span></p>

The Effect of Axial Load on the In Vivo Anterior Drawer Test of the Ankle Joint Complex

2000 ◽  
Vol 21 (5) ◽  
pp. 420-426 ◽  
Author(s):  
Wen Liu ◽  
Murray E. Maitland ◽  
Benno M. Nigg
Keyword(s):  
Ankle Joint ◽  
Axial Load ◽  
Plantar Flexion ◽  
Correlation Coefficients ◽  
Displacement Curve ◽  
Ankle Sprains ◽  
Mechanical Instability ◽  
Anterior Drawer ◽  
Anterior Drawer Test

The anterior drawer test is commonly used in the diagnosis of ankle joint mechanical instability. However, the effect of axial load on the anterior drawer test has not been examined in vivo. The purpose of the study was to assess the effect of axial load on passive anterior instability, and on the diagnostic measurement of the anterior drawer instability of the ankle joint complex. A total of 21 subjects with various degrees of ankle sprains were tested on a device that could continuously record applied anterior force and the resultant displacement of the rear-foot. Anterior drawer flexibility of the ankle joint complex in a neutral dorsi/plantar flexion position was quantified on both feet for all subjects without and with an axial load (385 N). Flexibility of the ankle joint complex in anterior drawer was defined as the slope of a linear load-displacement curve (which fitted test data with high correlation coefficients (r>0.991)). With axial load, anterior drawer flexibility was significantly reduced by 28.8% compared to that without axial load. The difference in anterior drawer flexibility between injured and intact ankles significantly decreased with axial load. An axial load increased the stability of ankle joint complex. However, axial load reduced the sensitivity of anterior drawer test to mechanical instability of the ankle joint complex.

scholarly journals Semi-rigid brace and taping decrease variability of the ankle joint position sense

2014 ◽  
Vol 20 (4) ◽  
pp. 448-453 ◽  
Author(s):  
Márcia Barbanera ◽  
Flávia de Andrade e Souza Mazuchi ◽  
José Paulo Berretta Batista ◽  
Janaina de Moura Ultremare ◽  
Juliana da Silva Iwashita ◽  
...  
Keyword(s):  
Ankle Joint ◽  
Plantar Flexion ◽  
Target Position ◽  
Absolute Error ◽  
Position Sense ◽  
Joint Position Sense ◽  
Ankle Sprains ◽  
Joint Position ◽  
Experimental Conditions ◽  
Ankle Brace

The present study investigated the effect of taping and the semi-rigid ankle brace on ankle joint position sense. Sixteen healthy women (20.8 ± 2.3 years old) actively placed the ankle in a target position. The experimental conditions were: 1) wearing no orthosis device, 2) using semi-rigid brace, and 3) wearing ankle taping. Absolute error (AE) and variable error (VE) were calculated to obtain the joint position sense. We found an interaction effect between condition and target angle at 15o of plantar flexion for the variable VE, which showed smaller errors during the use of taping and semi-rigid brace. In conclusion, the use of ankle joint orthoses, whether taping or semi-rigid brace, decrease the variability of the position sense at 15o of plantar flexion, potentially decreasing ankle sprains occurrence.

Reduction of Postural Sway by Use of a Vibrotactile Balance Prosthesis Prototype in Subjects with Vestibular Deficits

2003 ◽  
Vol 112 (5) ◽  
pp. 404-409 ◽  
Author(s):  
Erna Kentala ◽  
Jason Vivas ◽  
Conrad Wall
Keyword(s):  
Postural Sway ◽  
Body Tilt ◽  
Vibrotactile Feedback ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
The Subject ◽  
Linear Accelerometer ◽  
Subject Performance ◽  
Vestibular Deficit ◽  
Anterior Posterior

To evaluate the effectiveness of a prototype vibrotactile balance prosthesis in maintaining balance during dynamic posturography, we studied 6 subjects with unilateral or bilateral vestibular deficit by means of Equitest computerized dynamic posturography (CDP). Their anterior-posterior (AP) sway at the small of the back was measured with a micromechanical rate gyroscope and a linear accelerometer. The resulting tilt estimate was displayed by a vibrotactile array attached to the torso. The vibration served as tilt feedback to the subject. Subject performance was evaluated with the tilt performance index (TPI), which is the inverse of the root-mean-square of tilt. We found that the balance prosthesis reduced the subjects' AP sway. The subjects' results without the balance prosthesis on CDP sensory organization tests (SOTs) 5 and 6 were compared to results with the prosthesis. The average TPI increased significantly (p < .05) when vibrotactile feedback was used as compared to the unaided condition. This finding was true for both SOTs 5 and 6. We conclude that vibrotactile feedback of estimated AP body tilt improved the subjects' ability to perform selected CDP tests. Some of the subjects were able to stand throughout the test with the device turned on, whereas they otherwise constantly fell.

scholarly journals Center of pressure-based postural sway differences on parallel and single leg stance in Olympic deaf basketball and volleyball players

2021 ◽  
Vol 17 (6) ◽  
pp. 418-427
Author(s):  
Yücel Makaracı ◽  
Recep Soslu ◽  
Ömer Özer ◽  
Abdullah Uysal
Keyword(s):  
Postural Control ◽  
Postural Stability ◽  
Postural Sway ◽  
Center Of Pressure ◽  
Force Plate ◽  
Basketball Players ◽  
Male Athletes ◽  
Significant Difference ◽  
Single Leg Stance ◽  
Volleyball Players

In sports such as basketball and volleyball, loss of balance due to the inability to maintain body stability and lack of postural control adversely affect athletic performance. Deaf athletes appear to struggle with balance and postural stability problems. The purpose of this study was to examine postural sway values in parallel and single leg stance of Olympic deaf basketball and volleyball players and reveal differences between the branches. Twenty-three male athletes from the Turkish national deaf basketball (n= 11) and volleyball (n= 12) teams participated in the study. After anthropometric measurements, the subjects completed postural sway (PS) tests in parallel/single leg stances with open eyes and closed eyes on a force plate. PS parameters (sway path, velocity, and area) obtained from the device software were used for the statistical analysis. The Mann-Whitney U-test was used to compare differences in PS parameters between basketball and volleyball players, and the alpha value was accepted as 0.05. Volleyball players had significantly better results in parallel stance and dominant leg PS values than basketball players (P<0.05). There was no significant difference between the groups in nondominant leg PS values (P>0.05). We think that proprioceptive and vestibular system enhancing training practices to be performed with stability exercises will be beneficial in terms of both promoting functional stability and interlimb coordination. Trainers and strength coaches should be aware of differences in the postural control mechanism of deaf athletes.

Effects of lifetime ethanol consumption on postural control: A computerized dynamic posturography study

2002 ◽  
Vol 12 (1) ◽  
pp. 53-64
Author(s):  
Saad Ahmad ◽  
John W. Rohrbaugh ◽  
Andrey P. Anokhin ◽  
Erik J. Sirevaag ◽  
Joel A. Goebel
Keyword(s):  
Alcohol Consumption ◽  
Postural Control ◽  
Spectral Power ◽  
Support Surface ◽  
Dependent Manner ◽  
Dynamic Posturography ◽  
Eyes Closed ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Eyes Open

The relationship between lifetime alcohol consumption and postural control was investigated in 35 subjects with no clinically-detectable neurologic abnormalities, using computerized dynamic posturography (CDP) procedures. The estimated total number of lifetime alcoholic drinks was positively correlated with anteroposterior sway spectral power within the 2–4 Hz and 4–6 Hz frequency bands, in three Sensory Organization Test (SOT) conditions: eyes closed with stable support surface (SOT 2), eyes open with sway-referenced support (SOT 4), and eyes closed with sway-referenced support (SOT 5). All correlations remained significant after controlling for subject age, and were increased after excluding nine drug-abusing subjects. In contrast to the strong findings for frequency-based measures, no correlation was observed using conventional amplitude-based sway measures. These results suggest that 1) alcohol consumption compromises postural control in an exposure-dependent manner, and 2) sway frequency analysis reveals pathological processes not manifested in conventional CDP measures of sway amplitude.

Dizziness: Relating the Severity of Vertigo to the Degree of Handicap by Measuring Vestibular Impairment

2003 ◽  
Vol 128 (3) ◽  
pp. 372-381 ◽  
Author(s):  
Nicolás Pérez ◽  
Eduardo Martin ◽  
Rafael Garcia-Tapia
Keyword(s):  
Caloric Test ◽  
Pathologic Finding ◽  
Sensory Organization Test ◽  
Dizziness Handicap Inventory ◽  
Test Portion ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Prospective Assessment ◽  
Vestibular Pathology

OBJECTIVE: We sought to correlate the severity of vertigo and handicap in patients with vestibular pathology according to measures of impairment. STUDY DESIGN AND SETTING: We conducted a prospective assessment of patients with dizziness by means of caloric, rotatory test, and computerized dynamic posturography to estimate impairment. Handicap and severity of vertigo were determined with specific questionnaires (Dizziness Handicap Inventory and UCLA-DQ). RESULTS: A fair relationship were found between severity of dizziness and vestibular handicap. When impairment was taken into consideration, values were still fair and only moderate for a group of patients with an abnormal caloric test as the only pathologic finding. The composite score from the sensory organization test portion of the computerized dynamic posturography is fairly correlated to severity of vertigo and handicap in the whole population of patients, but no correlation was found when they were assigned to groups of vestibular impairment. CONCLUSION: To assess vestibular impairment, the results from several tests must be taken into account. However, vestibular handicap is not solely explained with measurements of impairment and/or severity.

scholarly journals Reliability and Validity of the Computerized Dynamic Posturography Sensory Organization Test in People with Multiple Sclerosis

2017 ◽  
Vol 19 (3) ◽  
pp. 151-157 ◽  
Author(s):  
Jeffrey R. Hebert ◽  
Mark M. Manago
Keyword(s):  
Multiple Sclerosis ◽  
Scale Score ◽  
Repeated Measures ◽  
Group Versus ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Disability Group ◽  
Composite Scores

Background: People with multiple sclerosis (MS) frequently have impaired postural control (balance). Psychometric properties of clinical tests of balance for individuals with MS, including the computerized dynamic posturography sensory organization test (CDP-SOT), are poorly understood. This study aimed to determine the reliability and discriminant validity of the CDP-SOT in people with MS. Methods: The CDP-SOT was performed on 30 participants with MS. A 2-week–interval, repeated-measures (sessions 1 and 2) design was implemented to investigate test-retest reliability of the CDP-SOT and the ability of the CDP-SOT to discriminate between participants with lower versus higher disability. Self-reported disability level was based on Patient-Determined Disease Steps (PDDS) scale scores: lower (PDDS scale score, 0–3; n = 17) and higher (PDDS scale score, 4–6; n = 13). Results: All six conditions of the CDP-SOT had good-to-excellent reliability (interclass correlation coefficients, 0.70–0.90) and excellent reliability for composite scores (0.90). Composite scores were significantly greater in the lower-disability group versus the higher-disability group at session 1 (70.89 vs. 48.60, P = .001) and session 2 (74.82 vs. 48.85, P = .002). Conclusions: The CDP-SOT is a reliable measure of balance and accurately differentiates disability status in people with MS. Collectively, the results support clinical application of the CDP-SOT as a reliable and valid measure of disease-related progression of impaired balance related to sensory integration and its utility in determining changes in balance in response to treatment.

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