Effects of Kinesiology Tape on Non-linear Center of Mass Dispersion During the Y Balance Test

This article presents the study of a double pendulum system with distributed mass carrying an actuator at the joint between the two rods. This actuator can move the outer rod in order to inject or remove energy from the system, which is modeled as a body with variable position of the center of mass. The objective of this work is to develop a control technique that can make the pendulum swing up and rotate itself, similar to many other double pendulum investigations, but in the present case without any actuation on the fixed joint. The system is modeled with Simulink® software, using the parameters of a real model.

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Effect of ultrasound-guided percutaneous neuromodulation in ankle instability: a case study

Revista Fisioterapia Invasiva ◽

10.1055/s-0039-3401876 ◽

2019 ◽

Vol 02 (02) ◽

pp. 100-101

Author(s):

Rodríguez Rosal M. ◽

Sánchez Sixto A. ◽

Álvarez Barbosa F. ◽

Yáñez Álvarez A.

Keyword(s):

Effect Size ◽

Center Of Pressure ◽

Tibial Nerve ◽

Ankle Instability ◽

Center Of Mass ◽

Force Plate ◽

Chronic Ankle Instability ◽

Balance Test ◽

Eyes Closed ◽

Eyes Open

Abstract Background and Aims Ankle proprioception can be tested in many ways. Some studies have found improvements in individuals with chronic ankle instability after receiving treatment and training proprioceptive acuity and speed. Currently, there is a scarcity of evidence concerning percutaneous neuromodulation. The first findings were reported in the post-surgical stage after total knee arthroplasty and in neural improvements and symptoms in patients with hyperactive bladder. Aim To evaluate the effectiveness of percutaneous neuromodulation on the tibial nerve for the improvement of various proprioception parameters in patients with chronic ankle instability. Material and Methods Five men (age: 24.8 ± 4.9 years; height: 1.78 ± 0.08 m; weight: 86 ± 9.8 kg) with chronic ankle instability, who regularly practiced sports activities participated in the present study. People who had undergone an injury in the previous three months were excluded from the speed. Currently, there is a scarcity of evidence concerning test before and immediately after percutaneous neuromodulation. A single leg balance test was performed with eyes open and closed, maintaining the single-legged position on a force plate during 30 seconds (Accupower; AMTI, Watertown, MA) registering 1000 Hz. The displacement of the center of pressure (DOT) was determined based on the distances of its antero-posterior axes (DOT_AP) and medio-lateral (DOT_ML). Furthermore, the amplitudes of anteroposterior and mediolateral displacement were evaluated (ACPap and ACPml). The posterior tibial nerve was stimulated under ultrasound guidance using a 100 Vpp current, with a pulse width of 250 μs and a repetition frequency of 2 to 10 Hz. The process was performed on three occasions during 30 seconds, with an intensity that was acknowledged by the patient but which did not go beyond a score of 3 in the visual analog scale (VAS). The means and standard deviations were calculated for all variables. The effect size was calculated establishing the confidence interval at 90% and the probability of the change being significant was qualitatively calculated. Results A decrease was found in the ACPap (Pre-test eyes open: 5.42 ± 0.62 and eyes closed: 15.99 ± 0.60; Post-test eyes open 4.05 ± 0.36 and eyes closed 10.33 ± 0.49) after the neuromodulation intervention on the tibial nerve. This was a significant change and a “possible” effect size was found in the closed eyes condition (-0.54; ± 0.72), according to Hopkins. For the remaining variables, no significant differences were observed. Conclusions A decreased displacement of the center of mass was found in the antero-posterior axis after performing the neuromodulation technique on the tibial nerve in patients with chronic ankle instability.

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Quantum entanglement of bound particles under free center of mass dispersion

Physica Scripta ◽

10.1088/0031-8949/85/06/065002 ◽

2012 ◽

Vol 85 (6) ◽

pp. 065002

Author(s):

Fernanda Pinheiro ◽

A F R de Toledo Piza

Keyword(s):

Quantum Entanglement ◽

Center Of Mass ◽

Mass Dispersion

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Effects of Taping and Elastic Bandage on Postural Control in Athletes with Patellofemoral Pain: A Randomized Control Trial

Galen Medical Journal ◽

10.31661/gmj.v4i3.176 ◽

2015 ◽

Vol 4 (3) ◽

pp. 82-89

Author(s):

Seyed Mojtaba Ojaghi ◽

Fahimeh Kamali ◽

Ali Ghanbari ◽

Samaneh Ebrahimi ◽

Ahmad Reza Nematollahi

Keyword(s):

Postural Control ◽

Center Of Pressure ◽

Center Of Mass ◽

Force Plate ◽

Pain Syndrome ◽

Patellofemoral Pain ◽

Balance Test ◽

Moment Arms ◽

Group 2 ◽

Elastic Bandage

Background: Patellofemoral pain syndrome (PFPS) is the most common overuse syndrome in athletes. The aim of this study was to compare the effects of taping and elastic bandage on postural control in athletes with PFPS. Materials and Methods: Fifteen males and 19 females with PFPS participated in this clinical trial study for more than 1 month and were randomly divided into two groups; group 1 was taped based on McConnell method and in group 2 elastic bandage was used. The static postural control in both groups was measured before and after interventions using the force- plate through measuring the center of pressure (COP) and estimation of differences between center of pressure and center of mass (COP-COM moment arms) in AP and ML directions. Moreover, dynamic postural control was measured by star excursion balance test (SEBT). Paired t-test and covariance analysis were used for analysis of the data. Results: Results indicated that after taping reach distances increased significantly (p< 0.05) in anterior, anterolateral, lateral and posterior directions but after elastic bandage reach distances increased in posterior, posteromedial and medial directions. After both taping and bandage, COP and COP-COM moment arm measures did not show significant differences. Conclusion: The findings of this investigation showed that in athletes with patellofemoral pain, taping and elastic bandage improved dynamic postural control. However, dynamic methods are successfully used to assess the effects of taping and bandage on postural control. Static variables compared with dynamic measures potentially lack the ability to detect subtle differences of postural control in athletes with PFPS. [GMJ. 2015;4(3):82-89]

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Effective Treatment for Chronic Ankle Instability During Lateral Step-Down—Kinesiology Tape, Resistance Exercise, or Both Accompanied With Heel Raise-Lower Exercise?

Journal of Sport Rehabilitation ◽

10.1123/jsr.2018-0073 ◽

2019 ◽

Vol 28 (8) ◽

pp. 809-816

Author(s):

Ji-Hyun Lee ◽

Tae-Lim Yoon

Keyword(s):

Resistance Exercise ◽

Outcome Measures ◽

Muscle Activation ◽

Ankle Instability ◽

Chronic Ankle Instability ◽

Balance Test ◽

Ankle Muscle ◽

Baseline Values ◽

Step Down ◽

Kinesiology Tape

Context:Kinesiology tape (KT), multidirectional resistance exercise, and interventions for decreased ankle dorsiflexion range of motion are gaining popularity in the treatment of patients with chronic ankle instability (CAI). However, there is limited evidence of the effectiveness of combined interventions in patients with CAI.Objectives:To compare the effects of KT alone, KT with resistance exercise (KT + resistance), and KT with resistance and heel raise-lower exercise (KT + resistance + heel) on the results of the dynamic balance test (star excursion balance test [SEBT]), functional performance (lateral step-down test), and ankle muscle activation in patients with CAI.Design and Setting:This study used a repeated-measures design in a laboratory setting.Main Outcome Measures:The participants completed 3 different interventions with a 24-hour rest period between interventions. The SEBT, lateral step-down test, and ankle muscle activation results were used as the outcome measures. All outcomes were assessed before and immediately after the 3 interventions.Results:The results of the SEBT-anteromedial direction significantly increased with KT + resistance (78.61 [16.11] cm,P = .01, ES = 0.50) and KT + resistance + heel (76.94 [16.00] cm,P = .03, ES = 0.33) in comparison with the baseline values (73.68 [12.84] cm). Additionally, the result of the SEBT-anteromedial direction was significantly greater with KT + resistance (78.61 [16.11] cm) than with KT alone (76.00 [14.90] cm,P = .05, ES = 0.18). The number of errors during the lateral step-down test was significantly lower for the KT alone (2.16 [0.90] errors,P = .02, ES = 0.46), KT + resistance (2.10 [0.79] errors,P = .01, ES = 0.54), and KT + resistance + heel (2.03 [0.75] errors,P = .003, ES = 0.61) interventions than the baseline values (2.55 [0.85] errors).Conclusions:Patients with CAI should be encouraged to perform KT + resistance to improve balance.

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Validity and Reliability of a Tool for Accelerometric Assessment of Balance in Scholar Children

Journal of Clinical Medicine ◽

10.3390/jcm10010137 ◽

2021 ◽

Vol 10 (1) ◽

pp. 137

Author(s):

Jesús García-Liñeira ◽

Raquel Leirós-Rodríguez ◽

Vicente Romo-Pérez ◽

Jose L. García-Soidán

Keyword(s):

Root Mean Square ◽

Center Of Mass ◽

Healthy Children ◽

Mean Square ◽

Functional Tests ◽

Clinical Tests ◽

Validity And Reliability ◽

Balance Test ◽

Cross Sectional ◽

Bar Test

In Pediatrics, balance is assessed through low-sensitivity clinical tests which identify developmental alterations at already advanced stages that cannot be detected at earlier stages. Therefore, the aim of this study was to develop an easily applicable quantitative tool that can be used to evaluate postural control. Consequently, a cross-sectional study was carried out with 91 healthy children. All of them performed a series of six accelerometric functional tests and four clinical tests of balance (Modified Flamingo Test, Bar Test, Babinski–Weil Test, and Fukuda Stepping Test). The Bar Test obtained mild inverse correlations with accelerations produced in the mediolateral axis and the root mean square of all the tests in monopodal support. The Flamingo Test obtained direct correlations with the root mean square of the tests in monopodal support and with the mediolateral axis of the monopodal tests and gait. The pediatric balance assessment scale consists of three factors and eleven items extracted from five accelerometric functional tests: the monopodal balance test with six items, normal gait test with three items, and bipodal balance test with two items. This tool is easy to apply and allows analysis in the evaluation of the balance state based on the accelerations of the center of mass.

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Eccentric Exercise, Kinesiology Tape, and Balance in Healthy Men

Journal of Athletic Training ◽

10.4085/1062-6050-52.3.11 ◽

2017 ◽

Vol 52 (7) ◽

pp. 636-642 ◽

Cited By ~ 6

Author(s):

Simona Hosp ◽

Ramona Folie ◽

Robert Csapo ◽

Michael Hasler ◽

Werner Nachbauer

Keyword(s):

Knee Joint ◽

Eccentric Exercise ◽

Knee Injuries ◽

Test System ◽

Balance Test ◽

Lower Limb Injury ◽

Healthy Men ◽

Sports Science ◽

Balance Ability ◽

Kinesiology Tape

Context: Deficits in balance have been identified as a possible risk factor for knee injuries in athletes. Despite a lack of evidence for its effectiveness, kinesiology tape (KT) is widely used to prevent knee injuries. Objective: To investigate the influence of KT at the knee joint on balance ability in healthy men after eccentric exercise. Design: Crossover study. Setting: University laboratory. Patients or Other Participants: Twelve young men with no history of lower limb injury volunteered for the study (age = 23.3 ± 2.6 years). All participants were students enrolled in a sports science program. Intervention(s): Participants performed the balance test with and without KT at the knee joint on 2 separate days. Main Outcome Measure(s): The ability to maintain balance was assessed during a single-legged–stance test using a computerized balance-stability test system. The test was performed before and after 30 minutes of downhill walking on a treadmill. Results: Eccentric exercise resulted in a deterioration of balance ability, which was attenuated by the use of KT. Further analyses revealed that the effectiveness of KT depended on the participant's balance status, with the preventive effect being greater in participants presenting with poorer baseline balance ability. Conclusions: Applied to the knee joint, KT counteracted the exercise-related deterioration of balance ability observed when no tape was used. Participants presenting with below-average balance ability received more benefit from KT. By preventing exercise-related impairment of balance ability, KT might help to reduce the risk of sport-associated knee injuries.

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