Effects of Ankle Taping on Single and Double Leg Balance

2010 ◽  
Vol 19 (1-2) ◽  
pp. 5-19
Author(s):  
Adam Knight ◽  
Wendi Weimar
Keyword(s):  
Center Of Gravity ◽  
Ankle Sprains ◽  
Acute Test ◽  
Eyes Closed ◽  
Athletic Tape ◽  
Different Types ◽  
Post Test ◽  
Eyes Open ◽  
Support Conditions ◽  
Healthy Participants

Effects of Ankle Taping on Single and Double Leg Balance Ankle sprains are a common injury and athletic tape is often applied to help prevent this injury, however, the effects of ankle taping on balance are relatively unclear. Additionally, the dominant and non-dominant legs often have different demands placed upon them and may yield different balance scores. Twenty five healthy participants (18 female, 7 male; age=20.5±1.19 years; mass=69.24±12.72 kg; height=1.69±.087 m) completed double and single leg balance assessments with the eyes open and eyes closed under three ankle support conditions: no ankle tape, PowerTape™, and Coach™ Tape, on the Neurocom Basic BalanceMaster™. Balance assessments were completed before ankle taping (pre-test), immediately after ankle taping (acute-test), and after 20 minutes of walking (post-test). The sway velocity of the participants' center of gravity (deg/s) was the dependent variable. A significant three way interaction was found for the single leg, eyes closed assessment (P = .037), with increased sway velocity for the PowerTape™ and Coach™ tape condition. The non-dominant leg had significantly less sway velocity than the dominant leg for the eyes open condition (P < .001). These results indicate differing affects on balance for different types of athletic tape, and balance differences between the dominant and non-dominant leg, with the non-dominant leg presenting lower sway velocities.

scholarly journals Postural Stability in Athletes: The Role of Age, Sex, Performance Level, and Athlete Shoe Features

Sports ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 89
Author(s):  
Albina Andreeva ◽  
Andrey Melnikov ◽  
Dmitry Skvortsov ◽  
Kadriya Akhmerova ◽  
Alexander Vavaev ◽  
...  
Keyword(s):  
Postural Stability ◽  
Female Athletes ◽  
Center Of Pressure ◽  
Performance Level ◽  
Eyes Closed ◽  
Different Types ◽  
Eyes Open ◽  
Athletic Shoes ◽  
Posture Stability

The effects of different factors—such as age, sex, performance level, and athletic shoe features—on postural balance in athletes remain unclear. The main objective of our study is to identify the features of postural stability in athletes of different age, sex, performance level, and using different types of athletic shoes. This study assessed postural stability in athletes (n = 936, 6–47 years) in a normal bipedal stance with eyes open (EO) and eyes closed (EC). Postural stability was evaluated based on the center of pressure (COP), sway area (AS), and velocity (VCP) while standing on a stabiloplatform. Children (6–12 years) and teen athletes (13–17 years) showed reduced AS-EO (p < 0.01) and VCP-EO (p < 0.01) compared to control (n = 225, 7–30 years). In male and female athletes aged 18+, only VCP-EC was lower versus control. In females (13–17 and 18+), VCP-EO and EC were lower than in males (p < 0.05). Only in the Shooting group, the athletes’ performance levels had an effect on VCP-EO (p = 0.020). Long use of rigid athletic shoes with stiff ankle support was associated with reduced posture stability. Postural stability in athletes was mostly influenced by the athlete‘s age, and, to a lesser extent, by their sex, performance level, and athlete shoe features.

scholarly journals On the Operational Utility of Measures of EEG Integrated Information

2021 ◽  
Author(s):  
David Darmon ◽  
Tomas Watanabe ◽  
Christopher Cellucci ◽  
Paul E Rapp
Keyword(s):  
Principal Component ◽  
Information Criterion ◽  
Model Order ◽  
Information Measures ◽  
Eyes Closed ◽  
Condition Effect ◽  
Eyes Open ◽  
Open Versus ◽  
Healthy Participants ◽  
Integrated Information

Multichannel EEGs were obtained from healthy participants in the eyes-closed no-task condition (where the alpha component is typically abolished). EEG dynamics in the two conditions were quantified with two related binary Lempel-Ziv measures of the first principal component and with three measures of integrated information including the more recently proposed integrated synergy. Both integrated information and integrated synergy with model order p=1 had greater values in the eyes closed condition. If the model order of integrated synergy was determined with the Bayesian Information Criterion, this pattern was reversed, and in common with other measures, integrated synergy was greater in the eyes open condition. Eyes open versus eyes closed separation was quantified by calculation of the between-condition effect size. Lempel-Ziv complexity of the first principal component showed greater separation than the measures of integrated information. The performance of the integrated information measures investigated here when distinguishing between indisputably different physiological states encourages caution when advocating for their use as measures of consciousness.

scholarly journals On the Operational Utility of Measures of Multichannel EEGs

Entropy ◽  
2021 ◽  
Vol 23 (11) ◽  
pp. 1434
Author(s):  
David Darmon ◽  
Tomas Watanabe ◽  
Christopher Cellucci ◽  
Paul E. Rapp
Keyword(s):  
Principal Component ◽  
Information Criterion ◽  
Task Condition ◽  
Model Order ◽  
Eyes Closed ◽  
Condition Effect ◽  
Eyes Open ◽  
Open Versus ◽  
Healthy Participants ◽  
Integrated Information

Multichannel EEGs were obtained from healthy participants in the eyes-closed no-task condition and in the eyes-open condition (where the alpha component is typically abolished). EEG dynamics in the two conditions were quantified with two related binary Lempel–Ziv measures of the first principal component, and with three measures of integrated information, including the more recently proposed integrated synergy. Both integrated information and integrated synergy with model order p=1 had greater values in the eyes-closed condition. When the model order of integrated synergy was determined with the Bayesian Information Criterion, this pattern was reversed, and in line with the other measures, integrated synergy was greater in the eyes-open condition. Eyes-open versus eyes-closed separation was quantified by calculating the between-condition effect size. The Lempel–Ziv complexity of the first principal component showed greater separation than the measures of integrated information.

The Immediate Effects of Tai Chi via a Video Platform Delivery on the Postural Stability of Healthy Young Adults

2021 ◽  
Vol 3 (1) ◽  
pp. 30-38
Author(s):  
Zachary A. M. Cordingley ◽  
Paolo Sanzo ◽  
Carlos Zerpa
Keyword(s):  
Young Adults ◽  
Postural Stability ◽  
Tai Chi ◽  
Center Of Pressure ◽  
Instructional Video ◽  
Surface Conditions ◽  
Eyes Closed ◽  
Adult Participants ◽  
Post Test ◽  
Eyes Open

Tai chi is effective for improving the postural stability of older adults, but the effects on healthy young adults has yet to be investigated. Currently, the use of virtual delivery platforms for various exercise prescriptions to patients has had to be quickly introduced related to the onset of the COVID-19 pandemic and physical distancing requirements. This study attempted to explore the pre-/post-test measures of postural stability from 15 healthy young adult participants under eyes open (EO) and eyes closed (EC) and firm/foam surface conditions after learning a battery of tai chi exercises and forms delivered by instructional video. Center of pressure-based measures of mean sway velocity (MSV) and 95% elliptical sway area (EA) were assessed. Three-way ANOVAs were conducted to determine if MSV and EA were significantly different across the eye conditions, surface conditions, and time. Both EA and MSV were found to significantly increase from EO to EC on a foam surface; however, only MSV under EC conditions was found to decrease significantly following the intervention.

scholarly journals Closed-Eye Visualizations in the Setting of Hyponatremia

2018 ◽  
Vol 2018 ◽  
pp. 1-3
Author(s):  
Travis Peck ◽  
Christopher Mercogliano ◽  
Eugene York
Keyword(s):  
Retinal Disease ◽  
Clinical Findings ◽  
Disease Course ◽  
Retrospective Case ◽  
Laboratory Assessment ◽  
Charles Bonnet Syndrome ◽  
Eyes Closed ◽  
Different Types ◽  
Eyes Open

Purpose. To report a case of closed-eye visualizations and to clarify the different types of hallucinations and their etiologies. Methods. Retrospective case report of a patient with closed-eye visualizations secondary to hyponatremia. Clinical findings, physical exam, laboratory assessment, treatment, and disease course from the patient’s hospitalization were used in creating this report. Follow-up data after discharge were also obtained. Results. Closed-eye visualizations were diagnosed as secondary to hyponatremia, as they did not occur with the eyes open, and potential alternate causes were excluded. Serum sodium nadir was 119 mEq/L. Symptoms resolved with correction of hyponatremia via fluid resuscitation and electrolyte replenishment. There has been no recurrence of the symptoms. Conclusion. This patient had hallucinations exclusively with the eyes closed, which must be differentiated from the release hallucinations seen with the eyes open in Charles Bonnet syndrome. This patient had no visual loss or retinal disease, which should be suspected in open eye hallucinations.

scholarly journals Does the Fatigue Index Induced in Athlete’s Affect Static Balance?

2019 ◽  
Vol 8 (5) ◽  
pp. 81
Author(s):  
Recep Soslu
Keyword(s):  
Anaerobic Power ◽  
Balance Training ◽  
The Body ◽  
Static Balance ◽  
Fatigue Index ◽  
Eyes Closed ◽  
Post Test ◽  
Eyes Open ◽  
Continuous Feedback ◽  
Base Of Support

Balance is the process of maintaining the body center of gravity vertically over the base of support and relies on rapid, continuous feedback and integration of afferent information coming from three sensory components, that is somatosensory, visual, and vestibular systems, resulting in smooth and coordinated neuromuscular actions. To investigate the effects of fatigue index on the static balance of sportsmen. A total of 51 male elite sportsmen from 4 different sports branches (Football players: 19, Volleyball players: 13, Skiers: 10 and Athletes: 9) participated in the study. The Wingate anaerobic power and capacity test was applied to induce fatigue. The Technobody isokinetic balance meter (Pro-Kin. CSMI) was used to measure pre- and post-fatigue static balance. There was a significant interaction between dependent (pre and post test balance) and independent (test statue and sport branches) variables were observed (F(63,1031.14) = 1.59, &eta;2 = .07, p ˂ .05). Main effect results showed that pre-fatigue balance values were significantly different than post-fatigue balance values in all groups (F(1.14, 213.91) = 177.99, &eta;2 = .49, p ˂ .05).Moreover, significant differences were identified between pre- and post-fatigue test results in sport branches (F(3.188) = 4.12, ƞ2 = .06, p &lt; .05) and test statue (eyes open and closed) (F(3.188) = 3.32, ƞ2 = .05, p &lt; .05). Bonferonni follow-up test indicated that there was a significant increase from footballers&rsquo; average static balance to the athletes&rsquo; average static balance (p ˂ .05). In test statue, pre fatigue eyes closed values were significantly different than post fatigue eyes opened values (p ˂ .05). Static balance training should be included in the training to be performed, fatigue static balance training should be performed in team and individual sports and the content of the training should be reorganized in line with the results obtained.

Postural Sway and Perception of the Upright Stance Stability Borders

Perception ◽  
1993 ◽  
Vol 22 (11) ◽  
pp. 1333-1341 ◽  
Author(s):  
Janusz W Blaszczyk ◽  
Paul D Hansen ◽  
Deborah L Lowe
Keyword(s):  
Postural Stability ◽  
Postural Sway ◽  
Age Groups ◽  
The Elderly ◽  
Stability Control ◽  
Center Of Gravity ◽  
Elderly Subjects ◽  
Experimental Conditions ◽  
Eyes Closed ◽  
Eyes Open

Decline in the perception of the borders of postural stability due to increase in sway was evaluated in young and elderly subjects. Ranges of lateral and anteroposterior postural sway were measured in eleven young and eleven elderly subjects during maximum voluntary excursions of center of gravity while leaning forward, backward, left, and right. In both age groups, displacement of the center of gravity out of the reference position resulted in increases in the range of sway in the plane corresponding to the direction of lean. Young subjects who further displaced their center of gravity within the base of support also exhibited significantly elevated anteroposterior sway range while leaning forward and backward, both in eyes-closed and in eyes-open experimental conditions. The elderly subjects, however, showed greater mediolateral oscillation of center of gravity while leaning forward with their eyes open. No significant intergroup differences in the anteroposterior sway range during leans in the mediolateral plane were found. However, a greater mediolateral component of sway range at lateral borders of stability was observed in the young adults. Analysis of signal-to-noise ratios indicated a greater decline in stability control in the elderly, due to impairment of perception of postural stability borders.

A Comparative Analysis of the Center of Gravity and Center of Pressure Trajectory Path Lengths in Standing Posture: An Estimation of Active Stiffness

2000 ◽  
Vol 16 (3) ◽  
pp. 234-247 ◽  
Author(s):  
Olivier Caron ◽  
Thierry Gélat ◽  
Patrice Rougier ◽  
Jean-Pierre Blanchi
Keyword(s):  
Comparative Analysis ◽  
Path Length ◽  
Center Of Pressure ◽  
Force Plate ◽  
Neuromuscular Control ◽  
Center Of Gravity ◽  
Foot Pressure ◽  
Eyes Closed ◽  
Eyes Open ◽  
Frequency Relationship

The center of foot pressure (CP) motions, representing the net neuromuscular control, was compared to the center of gravity (CG) motions, representing the net performance. The comparison focused on the trajectory path length parameter along the mediolateral and antero-posterior axes because these two variables depend on amplitude versus frequency relationship. This relationship was used to evaluate the CG motions based on the CP motions. Seven subjects stood still on a force plate with eyes open and eyes closed. The results showed that the ratio of (CP – CG)/CP trajectory path length was personal for each subject. These results suggest different levels of passive (ligaments, elastic properties) and active (reflex activity) stiffness. For some subjects, this ratio was significantly lower for the eyes open condition than for the eyes closed condition, indicating a decrease of the active stiffness for the eyes open condition. Therefore, a CG – CP comparative analysis appeared helpful in understanding the control of balance and necessary to quantify the subjects’ net performance.

scholarly journals Examination of the effects of swimming exercises and thera-band workouts on dynamic and static balance in children between 7-12 years of age7-12 yaş arası çocuklarda yüzme egzersizi ve thera-band çalışmalarının dinamik ve statik dengeye etkisinin incelenmesi

2018 ◽  
Vol 15 (3) ◽  
pp. 1443 ◽  
Author(s):  
Hilal Kılınç ◽  
Mehmet Günay ◽  
Şeyhmus Kaplan ◽  
Akan Bayrakdar
Keyword(s):  
Dynamic Balance ◽  
Test Group ◽  
Exercise Group ◽  
English Summary ◽  
Static Balance ◽  
Eyes Closed ◽  
Post Test ◽  
Eyes Open ◽  
The Difference ◽  
Experimental Group

The aim of this study was to investigate the effects of swimming exercises and theraband workouts on dynamic and static balance in children aged 7-12 years. The study was conducted with 20 subjects aged 7-12 who were interested in swimming for at least 2 years and engaged in swimming training on a regular basis for 5 days per week. Informed consent was obtained from the parents and trainers of the participants about their voluntary participation. Participants were randomly divided into 2 groups. Swimming and theraband workouts were made to the 1. group (n=10), only swimming exercises were made to the 2. group (n=10). In this study, anthropometric measurements and static and dynamic balance measurements were taken. The study was carried out in the Van Olympic Swimming Pool. The analysis of the data in-group and intergroup measurements were performed. There was statistically significant improvement between the variables in the theraband exercise group. Developments were thought to be influenced by the specificity of the movements. The experimental group showed a statistically significant in the eyes open front-to-back swing %28,85, eyes closed front-to-back swing %6,66, the average speed of eyes open front-to-back swing %20,12, the eyes open front-to-back swing body balance %15,83, eyes open left to right swing %14,66, eyes open left to right swing speed %22,30, anterior experimental group %1,91 and posterolateral experimental group %4,54. The difference between the posterolateral and anterior post-test groups was observed. Test*group interaction was observed at the speed of  eyes open front-to-back and left to right swings. This interaction was due to intra-group developments in the experimental group. As a result, theraband studies examined under the name of swimming and core exercise in children athletes were thought to play an important role in the development of static and dynamic balance. Extended English summary is in the end of Full Text PDF (TURKISH) file.ÖzetBu çalışma 7-12 yaş arası çocuklarda yüzme egzersizi ve tereband çalışmalarının dinamik ve statik dengeye etkisini incelemek amacıyla yapılmıştır. Çalışma en az 2 yıl yüzme branşı ile ilgilenen ve haftada 5 gün düzenli olarak yüzme antrenmanı yapan yaşları 7-12 arasında olan 20 denek ile gerçekleştirilmiştir. Katılımcıların velilerinden ve antrenörlerinden gönüllü katılımları ile ilgili aydınlanmış onamları alınmıştır. Katılımcılar rastgele yöntemle 2 gruba ayrılmışlardır. 1. gruba (n=10) yüzme ve tereband çalışmaları, 2. gruba (n=10) sadece yüzme egzersizleri yaptırılmıştır. Çalışmada antropometrik ölçümler ile statik ve dinamik denge ölçümleri alınmıştır. Çalışma Van Olimpik yüzme havuzunda uygulanmıştır. Verilerin analizinde grupiçi ve gruplararası ölçümler gerçekleştirilmiştir. Tereband egzersiz grubunda değişkenler arasında istatistiki olarak anlamlı gelişme görülmüştür. Gelişmelerin hareketlerin spesikfikliğinden etkilendiği düşünülmektedir. Deney grubunun göz açık öne arkaya salınım %28,85, göz kapalı öne arkaya salınım %6,66, göz açık öne arkaya salınım ortalama hızı %20,12, göz açık öne arkaya salınım gövde dengesi %15,83,  göz açık sağa sola salınım %14,66, göz açık sağa sola salınım hızı %22,30, Anterior %1,91 ve Posterolateral deney grubunda %4,54 oranında istatistiki olarak anlamlı bir artış göstermiştir. Posterolateral ve anteriorda son test gruplar arası farklılık gözlemlenmiştir.  Göz açık öne arkaya salınım ve göz açık sağa sola salınım hızında test*grup etkileşimi gözlenirken, bu etkileşim deney grubundaki grup içi gelişimlerden kaynaklanmaktadır. Sonuç olarak, çocuk sporcularda yüzme ve core egzersiz adı altında incelenen tereband çalışmalarının statik ve dinamik denge geliştirme de önemli rol oynadığı düşünülmektedir.

scholarly journals Investigation of Hunger and Satiety Status During Eyes Open and Closed Using EEG Signals

2020 ◽  
pp. 35-38
Author(s):  
Egehan Cetin ◽  
Gurkan Bilgin ◽  
Suleyman Bilgin ◽  
Yasemin Bicer Gomceli ◽  
Alparslan Melik Kayikci
Keyword(s):  
Wavelet Packet ◽  
Eeg Signals ◽  
Eyes Closed ◽  
The People ◽  
Low Pass ◽  
Eyes Open ◽  
Surface Eeg ◽  
High Pass ◽  
Healthy Participants ◽  
Bci System

Surface EEG measurements that can be performed in hospitals and laboratories have reached a wearable and portable level with the development of today's technologies. Artificial intelligence-assisted brain-computer interface (BCI) systems play an important role in individuals with disabilities to process EEG signals and interact with the outside world. In particular, the research is becoming widespread to meet the basic needs of individuals in need of home care with an increasing population. In this study, it is aimed to design the BCI system that will detect the hunger and satiety status of the people on the computer platform through EEG measurements. In this context, a database was created by recording EEG signals with eyes open and eyes closed by 20 healthy participants in the first stage of the study. The noise of the EEG signal is eliminated by using a low pass, high pass, and notch filters. In the classification, using Wavelet Packet Transform (WPT) with Coiflet 1 and Daubechies 4 wavelets, 77.50% accuracy was achieved in eyes closed measurement, and 81% in eyes open measurement.

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