Associations Between Static and Dynamic Field Balance Tests in Assessing Postural Stability of Female Undergraduate Dancers

2021 ◽  
Author(s):  
Francis Clarke ◽  
Yiannis Koutedakis ◽  
Margaret Wilson ◽  
Matthew Wyon
Keyword(s):  
New York ◽  
Postural Stability ◽  
Correlation Coefficients ◽  
Assessment Tools ◽  
Female Undergraduate ◽  
Balance Test ◽  
Balance System ◽  
Balance Tests ◽  
Functional Relevance ◽  
Romberg Test

Balance testing on dancers has used a wide variety of assessment tools. However, as most field balance tests have been developed for either sport or elderly populations, the evidence of associations between tests and their functional relevance to dance is inconclusive. We assessed possible associations between five such field balance tests. A total of 83 female undergraduate dance students (20 ± 1.5 years; 163 ± 6.6 cm; 61 ± 10.8 kg) volunteered for the tests. They executed the Star Excursion Balance Test (SEBT), the modified Romberg test, the Airplane test, the BioSway Balance System (Biodex, Shirley, New York, USA), and a dance-specific pirouette test. Spearman’s correlation coefficients examined relationships between the measures of the balance tests. Results showed strongest relationships between some SEBT reach directions (p < 0.01) and very weak to moderate relationships between some balance tests, including some SEBT directions, Romberg, Airplane, Biosway, and pirouette (p < 0.01 and p < 0.05). Our findings suggest that current tests used to assess dancers’ postural stability need further investigation to ensure functionality and relevance.

scholarly journals Associations Between Balance Ability and Dance Performance Using Field Balance Tests

2019 ◽  
Vol 34 (3) ◽  
pp. 154-160
Author(s):  
Frances Clarke ◽  
Yiannis Koutedakis ◽  
Margaret Wilson ◽  
Matthew Wyon
Keyword(s):  
Female Undergraduate ◽  
Balance Test ◽  
Dance Performance ◽  
Balance System ◽  
Balance Tests ◽  
Balance Ability ◽  
Star Excursion Balance Test ◽  
Romberg Test

AIMS: Although balance is a key element of dance, it remains to be confirmed which balance components are associated with dance performance. The aim of this study was to assess the associations between different field balance tests and dance performance in an in-house measure in ballet, contemporary, and jazz genres. METHODS: 83 female undergraduate dance students (20±1.5 yrs, 163.04±6.59 cm, 60.97±10.76 kg) completed the Star Excursion Balance Test (SEBT), the airplane test, a dance-specific pirouette test, the modified Romberg test, and the BioSway™ Balance System. Results from these balance tests were compared to the participants’ technique and repertoire performance scores in ballet, contemporary, and jazz genres. RESULTS: Ballet scores were best predicted by SEBT 90° and Romberg for technique (r=0.4, p=0.001, SEE ±2.49) and Romberg, SEBT 90°, and SEBT 225° for repertoire (r=0.51, p=0.001, SEE±1.99). Contemporary data indicated SEBT 90° and Romberg for technique (r=0.37, p=0.001, SEE±2.67) and SEBT 225° for repertoire (r=0.27, p=0.015, SEE±2.29). Jazz indicated SEBT 90°, Romberg, SEBT 315°, and SEBT 225° for technique (r=0.51, p=0.001, SEE±2.28) and SEBT 225° and Romberg for repertoire (r=0.41, p=0.001, SEE±2.29). CONCLUSION: The present study suggests that balance ability has a limited influence on dance performance, with existing field balance tests demonstrating low to moderate associations with dance technique and repertoire.

Testing Postural Stability: Are the Star Excursion Balance Test and Biodex Balance System Limits of Stability Tests Consistent?

2016 ◽  
Vol 43 ◽  
pp. 225-227 ◽  
Author(s):  
A. Page Glave ◽  
Jennifer J. Didier ◽  
Jacqueline Weatherwax ◽  
Sarah J. Browning ◽  
Vanessa Fiaud
Keyword(s):  
Postural Stability ◽  
Balance Test ◽  
Stability Tests ◽  
Limits Of Stability ◽  
Balance System ◽  
Star Excursion Balance Test ◽  
Biodex Balance System

scholarly journals Postural Stability Outcomes after Arthroscopic Cell-Free Osteochondral Scaffold Surgery

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0022
Author(s):  
Selda Başar ◽  
Zeynep Hazar ◽  
Mehmet Gem ◽  
Ulunay Kanatlı
Keyword(s):  
Postural Stability ◽  
Osteochondral Lesion ◽  
The Other ◽  
Wilcoxon Test ◽  
Balance Test ◽  
Balance System ◽  
Rehabilitation Programs ◽  
Osteochondral Scaffold ◽  
Eyes Open ◽  
Dynamic Postural Stability

Objectives: The purpose of this study was to evaluate the static and dynamic postural stability in patients undergone arthroscopic cell-free osteochondral scaffold surgery due to talus ostekondrol lesions. Methods: 8 patients diagnosed with osteochondral lesion of the talus urdergone arthroscopic cell-free osteokondral scaffold surgery were included in this study (mean age; 43.2±15.6 years). Only one patient was operated from non-dominant side. Static postural stability (SPS) was evaluated with"Biodex, Biosway Portable Balance System" as bilateral eyes open and closed 1 year after surgery. Dynamic postural stability (DPS) was assessed with the Y Balance Test (anterior, posteromedial, posterolateral directions). Score of static and dynamic postural stability between the operated side and the other side were compared with the Wilcoxon test. Results: At the assesment of static postural stability, there was no statistical difference between the operated side and the other side in the anteroposterior, mediolateral and total scores (p>0.05). Similarly, all three directions of Y balance test values did not differ statistically between the two sides (p>0.05). Conclusion: It was determined that postural stability of patients who were applied arthroscopic cell-free osteokondral scaffold surgery in the operated side have reached the same level those of other side after 1 year surgery. This situation should be taken into consideration when planning the early stages of rehabilitation programs.

scholarly journals Reliability of Functional Balance Tests and Their Correlation With Selected Anthropometric Parameters in Children Aged 7-10 Years

2020 ◽  
Vol 5 (4) ◽  
pp. 216-227
Author(s):  
Mahboobeh Dehnavi ◽  
◽  
Heidar Sadeghi ◽  
Mehdi Taghva ◽  
◽  
...  
Keyword(s):  
Body Length ◽  
Dynamic Balance ◽  
Static Balance ◽  
Lower Body ◽  
Dynamic Tests ◽  
Anthropometric Parameters ◽  
Balance Test ◽  
Functional Balance ◽  
Balance Tests ◽  
Romberg Test

Objective: The present study aimed to evaluate the reliability of functional balance tests and their correlation with selected anthropometric parameters in children aged 7-10 years. Methods: Participants were 80 students aged 7-10 (40 female and 40 male). Romberg Test and Sharpened Romberg Test were used for assessing static balance, while timed up and go test, tandem walk test, and Y-balance test were used for measuring dynamic balance. Selected anthropometric factors were body height, upper body length, lower body length, Foot length and body mass. Reliability was determined using intra-class correlation coefficient (ICC), and Pearson correlation was used for examining the relationship between balance tests and selected anthropometric parameters at a significance level of P≥0.05. Results: Static balance tests were not reliable, but dynamic tests were reliable. No significant correlation was found between anthropometric parameters and static and dynamic tests (P>0.05); except between lower body length and Y-balance test (r=0.53, P=0.01). Conclusion: It seems that at the age of 7-10 years, static balance tests are affected because the sensory systems related to balance are developing. Therefore, static balance tests, which require weighting of each of these systems with eyes closed and open, are not good criteria for examining the balance of this age group. Hence, it is better to use dynamic balance tests, especially the Y-balance test.

scholarly journals Results and analyses of preoperative isokinetic and balance tests in patients with chronic lateral ankle instability who underwent surgical treatments

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0047
Author(s):  
Ki-Sun Sung ◽  
Dae-Wook Kim
Keyword(s):  
Muscle Strength ◽  
Postural Stability ◽  
Ankle Instability ◽  
Peak Torque ◽  
Balance Test ◽  
Lateral Ankle ◽  
Chronic Lateral Ankle Instability ◽  
Balance Tests ◽  
Lateral Ankle Instability ◽  
Torque Values

Category: Sports Introduction/Purpose: To (1) describe muscle strength and postural stability in patients with chronic lateral ankle instability, and (2) analyze the correlation between weakness of muscle strength and deficits of postural stability Methods: Results of preoperative isokinetic and balance tests in 203 patients whose contralateral ankle was normal were retrospectively reviewed. Isokinetic peak torque values of eversion and inversion at 2 angular velocities (30°/s, 120°/s) were measured in injured and normal ankles. In balance test, the percent differences of 3 actual scores (Overall, Anterior-Posterior, and Medial-Lateral) between injured and normal ankles were calculated. Additional statistical analyses were performed to describe weakness of muscle strength, deficits of postural stability, and their correlation. Results: There were significant differences in 4 peak torque values and 4 relative peak torque values (peak torque/body weight) between injured and normal ankles. Eight values were significantly lower in injured ankles. Weakness was severe during inversion and at 30°/s. In balance test, 49 subjects (24.1%) had significant deficits in postural stability; the results in 109 subjects (53.7%) were favorable. There was no strong association between weakness of muscle strength and deficits of postural stability. Conclusion: Considering correlation between weakness of muscle strength and deficits of postural stability, strength measurement alone is insufficient in evaluating preoperative functional ability, and other functional test such as postural stability test is required. In addition, the results of this study may provide further evidence for rehabilitation program consisting of proprioceptive training as well as muscle strengthening.

scholarly journals Effects of sound level on postural stabilitySes seviyesinin denge performansına etkisi

2017 ◽  
Vol 14 (1) ◽  
pp. 217
Author(s):  
Serkan Hazar
Keyword(s):  
New York ◽  
Postural Stability ◽  
Sound Level ◽  
Noisy Environment ◽  
Balance Performance ◽  
Significance Level ◽  
Balance System ◽  
Significant Difference ◽  
Stability Measurement ◽  
High Level

The aim of this study is to investigate whether the intended ambient sound level has an effect on the postural stability. For this purpose 15 man and 12 women totally 27 healthy, voluntary students voluntarily participated in the study. The DT-8820 Multi-Function Environment Meter was used for Sound Level Measurement. Quiet environment, while the volume was maintained at between 15-30 decibel noise level of 90-100 dB in noisy environments. The Biodex balance system (Biodex, Inc., Shirley, New York) was used for postural stability measurement. SPSS 21.0 package program was used in the analysis of the data. The Wilcoxon Signed Ranks and Mann Whitney U test was used to compare measurement Significance level was set at 0.05 and 0.01 levels. When the balance performances at different sound levels are compared by gender, It was found that there was a significantly meaningful result in favor of men in quite environment oscillation balance scores both open eye and closed eye. However there was no significant difference among man and women other scores. On the other hand it was determined significant differences in the women closed eye oscillation score. In the man excepting open eye oscillation score the noisy environment was negatively affected all parameter. Postural stability was negatively affected noisy environment. As a result; In the study conducted that the high level of sound impaired the balance performance by affecting the vestibular system in both women and men and the effect was higher when closed eyes. ÖzetYapılan çalışmanın amacı ortam ses seviyesinin denge performansına etkisinin olup olmadığının araştırılmasıdır. Bu amaçla çalışmaya 15’i erkek, 12’si bayan toplam 27 öğrenci alınmıştır. Ortam Ses Seviyesi Ölçümü DT-8820 Multi-Function Environment Meter cihazı ile yapıldı. Sessiz ortam ses seviyesi 15-30 desibel arasında iken gürültülü ortam ses seviyesi 90-100 desibel arasında tutulmuştur.Denge ölçümü için BİODEX denge sistemi (Biodex, Inc, Shirley New York) kullanılmıştır.Verilerin analizinde SPSS 21.0 paket programı kullanıldı.  Verilerinin kıyaslanmasında Wilcoxon Signed Ranks Test ve Mann Whitney U test kullanıldı. Anlamlılık düzeyi 0.05 ve 0.01 seviyesinde kurgulandı. Sessiz ortam salınım değerlerinde hem gözler açıkken hem de gözler kapalıyken ölçülen değerlerde erkekler lehine anlamlı bir sonuç olduğu tespit edilirken diğer değerlerde cinsiyetler arası farklılık olmadığı tespit edilmiştir. Diğer taraftan kadınlarda ortam ses seviyesinin gözler kapalı iken ölçülen salınım denge değerlerinde anlamlı farklılık olduğu, gürültünün denge performansını olumsuz etkilediği, erkeklerde ise gözler açık salınım denge değeri hariç hem statik hem dinamik hemde gözler kapalı salınım denge değerlerinde anlamlı farklılık olduğu,  dengenin gürültüden olumsuz etkilendiği tespit edilmiştir. Sonuç olarak; yapılan çalışmada yüksek ses seviyesinin hem bayanlarda hem de erkeklerde vestibüler sistemi etkileyerek denge performansını bozduğu, bu etkinin gözler kapalıyken daha yüksek olduğu tespit edilmiştir. 

scholarly journals Impact of pool training on balance of elderly individuals.

2020 ◽  
pp. 1-6
Author(s):  
Thyciane Mendonça de Andrade ◽  
Tathiana Maria Silva Rufino ◽  
Heleodório Honorato dos Santos ◽  
José Jamacy de Almeida Ferreira ◽  
Adriana Carla Costa Ribeiro Clementino ◽  
...  
Keyword(s):  
Fall Risk ◽  
Postural Stability ◽  
Dynamic Balance ◽  
Assessment Tools ◽  
Timed Up And Go ◽  
Elderly Individuals ◽  
Balance System ◽  
The Impact ◽  
Stability Score ◽  
Anterior Posterior

Objective: The aim of this study was to evaluate the impact of therapeutic pool training on static and dynamic balance of sedentary elderlies. Method: 10 elderly individuals took part in the study (63.10 ± 2.33 years), and they were submitted to 24 sessions of intervention, twice a week. The assessment tools were the Balance System, Timed Up and Go Test (TUGT) and the Berg Balance System (BBS). Results: The results showed that there was a significant decrease in the global postural stability, anterior/posterior and medial/lateral scores evaluated in the dynamic platform, as well as the static global postural stability score, reduction in time to perform the TUGT and increase in the Berg Balance System score. However, no significant differences were verified in the Postural Stability tests (anterior/posterior and medial/lateral with the static platform) and in the Fall Risk. Conclusion: The regular physical training in therapeutic pool can provide sedentary elderly individuals with a significant improvement in dynamic balance.

Factors Affecting Reliability of the Biodex Balance System: A Summary of Four Studies

2000 ◽  
Vol 9 (3) ◽  
pp. 240-252 ◽  
Author(s):  
Martha R. Hinman
Keyword(s):  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Stability Index ◽  
Retest Reliability ◽  
Factors Affecting ◽  
Balance System ◽  
Intraclass Correlation Coefficients ◽  
Balance Tests ◽  
Test Retest Reliability ◽  
Biodex Balance System

Purpose:To describe differences in test-retest reliability of balance measures produced by the Biodex Balance System.Methods:Subjects performed balance tests in 4 studies, each involving two 30-second tests under varying conditions. Test-retest reliability coefficients were calculated for the overall stability index (SI) under each condition. Test-retest reliability was computed for subjects' limits of stability (LOS).Results:Intraclass correlation coefficients (ICC3,1) ranged from .44 to .89 for static balance tests; variability between the 2 tests ranged from 21% to 37%. Tests at lower stability levels or without visual input produced the highest ICCs. ICCs for the LOS tests ranged from .64 to .89. These measures were less variable (6% to 8%) than the static measures of balance.Conclusions:Test-retest reliability of the SI produced by the Biodex Balance System is acceptable for clinical testing and is comparable to other balance measures currently in use.

POSTURAL STABILITY IN PATIENTS WITH LATENT TRIGGER ZONES OF NECK MUSCULATURE

2019 ◽  
pp. 114-123
Author(s):  
E.R. Mukhametova ◽  
A.D. Militskova ◽  
T.V. Baltina
Keyword(s):  
Postural Control ◽  
Postural Stability ◽  
Test Group ◽  
Trigger Points ◽  
Control Group ◽  
Neck Muscle ◽  
Pressure Center ◽  
Cervical Muscles ◽  
Equilibrium Function ◽  
Romberg Test

There are many reasons for postural disorder development, but dysfunction of the cervical spine muscles is the most disputable reason. The purpose of the study is to reveal the influence of latent myogenic trigger zones of the cervical muscles on postural resistance. Materials and Methods. The authors used the method of computer posturography. Latent myogenic trigger zones (LMTZs) were determined by an indurated nodule or bundle in the neck muscle and by hyperesthesia in this zona. Assessment of postural resistance in subjects with LMTZs was carried out using standard posturography tests and Romberg test. Both classical and vector indicators were evaluated in a standard sample. Results. In fact, only vector indicators changed significantly in subjects with multiple LMTZs (4 or more). Thus, a decrease in the equilibrium function quality was established, as well as an increase in the average linear velocity of the pressure center and an increase in the normalized vectorogram area if compared with the indices in the control group and the group with sporadic LMTZs (from 1 to 3). The obtained results indicate a postural control decrease in individuals with multiple LMTZs. Subjects with sporadic LMTZs demonstrated a significant decrease in classical and a number of vector indicators, which shows the improvement in postural resistance in this test group. In Romberg test, all subjects with LMTZs, regardless of the zone number, showed an increasd Romberg coefficient. Conclusion. Multiple LMTZs of cervical muscles can reduce postural stability through increased afferentation from the cervical proprioreceptors. It is more obvious during in case of eye control elimination. Keywords: latent myogenic trigger points, postural control, posturography, Romberg test. Выделяют множество причин развития постуральных нарушений, среди которых дисфункция мышц шейного отдела позвоночника является наиболее спорной. Цель исследования. Выявить влияние латентных миогенных триггерных зон шейной мускулатуры на постуральную устойчивость. Материалы и методы. Использовался метод компьютерной стабилографии. Латентные миогенные триггерные зоны (лМТЗ) определялись по наличию в мышце шеи уплотненного узелка или пучка и по повышенной болевой чувствительности в этой области. Оценка постуральной устойчивости у испытуемых с лМТЗ осуществлялась с помощью стандартного стабилографического тестирования и теста Ромберга. В стандартной пробе оценивались как классические, так и векторные показатели. Результаты. Показано, что у испытуемых с множественными лМТЗ (4 и более) достоверно изменяются только векторные показатели. Так, установлено снижение качества функции равновесия, а также повышение средней линейной скорости центра давления и увеличение нормированной площади векторограммы по сравнению показателями в группе контроля и группе с единичными лМТЗ (от 1 до 3), что указывает на снижение постурального контроля у лиц с множественными лМТЗ. У испытуемых с единичными лМТЗ отмечено достоверное снижение классических показателей и ряда векторных, что свидетельствует об улучшении постуральной устойчивости в данной группе испытуемых. В пробе Ромберга все субъекты с лМТЗ независимо от количества последних показали повышение коэффициента Ромберга. Выводы. Множественные лМТЗ шейной мускулатуры могут снизить постуральную устойчивость через усиление афферентации от шейных проприорецепторов, что наиболее выражено при элиминации зрительного контроля. Ключевые слова: латентные миогенные триггерные точки, постуральный контроль, стабилография, тест Ромберга.

Relationship between Coffee Prices in Spot and Futures Markets-An Empirical Analysis

2020 ◽  
pp. 180-188
Keyword(s):  
New York ◽  
Correlation Coefficients ◽  
Strong Relationship ◽  
Futures Market ◽  
Regression Coefficients ◽  
Futures Prices ◽  
Market Prices ◽  
Spot Prices ◽  
Correlation And Regression Analysis ◽  
Highly Correlated

The present study explored the relationship between spot and futures coffee prices. The Correlation and Regression analysis were carried out based on monthly observations of International Coffee Organization (ICO) indicator prices of the four groups (Colombian Milds, Other Milds, Brazilian Naturals, and Robustas) representing Spot markets and the averages of 2nd and 3rd positions of the Intercontinental Exchange (ICE) New York for Arabica and ICE Europe for Robusta representing the Futures market for the period 1990 to 2019. The study also used the monthly average prices paid to coffee growers in India from 1990 to 2019. The estimated correlation coefficients indicated both the Futures prices and Spot prices of coffee are highly correlated. Further, estimated regression coefficients revealed a very strong relationship between Futures prices and Spot prices for all four ICO group indicator prices. Hence, the ICE New York (Arabica) and ICE Europe (Robusta) coffee futures prices are very closely related to Spot prices. The estimated regression coefficients between Futures prices and the price paid to coffee growers in India confirmed the positive relationship, but the dispersion of more prices over the trend line indicates a lesser degree of correlation between the price paid to growers at India and Futures market prices during the study period.

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