scholarly journals Impaired body balance control in adults with strabismus

2014 ◽  
Vol 98 ◽  
pp. 35-45 ◽  
Author(s):  
Anna Przekoracka-Krawczyk ◽  
Paweł Nawrot ◽  
Monika Czaińska ◽  
Krzysztof Piotr Michalak
Keyword(s):  
Balance Control ◽  
Body Balance

scholarly journals The effect of Estonian folk dance practice on static balance performance in young females

2020 ◽  
Vol 26 ◽  
pp. 61-71
Author(s):  
Leili Väisa ◽  
Jaan Ereline ◽  
Mati Pääsuke ◽  
Tatjana Kums
Keyword(s):  
Balance Control ◽  
Young Female ◽  
Support Surface ◽  
Movement Trajectory ◽  
Folk Dance ◽  
Balance Performance ◽  
Body Balance ◽  
Eyes Closed ◽  
Unstable Support ◽  
Static Body

The aim of the present study was to establish the changes that occur in dancers’ static body balance indicators during rest, in case of interfering factors and in stress condition. The sample consisted of 14 advanced female folk dancers at the age of 16–20 years. The participants’ static body balance was measured at the beginning (in the autumn) and at the end (in the spring) of the eight-month dancing period. Static body balance indicators were registered on a dynamographic platform within 30 seconds, standing on bipedal on stable and unstable support surface in eyes-open (EO) and eyes-closed (EC) conditions. The Flamingo test balance control, the balance control after spinning around and jumping tests were conducted only in EO condition. The following parameters were registered: the movements of the centre of pressure (CoP) in the anterior-posterior (AP) and medio-lateral (ML) dimensions; the length, speed and area of the trajectory. According to the study, folk dancers’ CoP movements in the AP and ML dimensions, measured in different conditions (EO, EC), on stable and unstable support surface, did not change significantly after the eight-month dancing practice. The young folk dancers’ static body balance, assessed by CoP movement trajectory, speed and area, improved considerably over the eight-month training period. Flamingo test results indicate that practising folk dance develops the young female folk dancers’ right and left side static stability equally. In the context of Estonian folk dance practice, including preparation for performing at dance festival, the young female folk dancers’ balance performance improved both in vestibular instability (spins, standing on unstable support surface and in EO condition) and fatigue (jumping test) conditions.

scholarly journals Robotic Light Touch Assists Human Balance Control During Maximum Forward Reaching

2020 ◽  
pp. 001872082095053
Author(s):  
Leif Johannsen ◽  
Karna Potwar ◽  
Matteo Saveriano ◽  
Satoshi Endo ◽  
Dongheui Lee
Keyword(s):  
Balance Control ◽  
Robotic System ◽  
Body Sway ◽  
Body Balance ◽  
Human Contact ◽  
Reduced Body ◽  
Balance Task ◽  
Weight Support ◽  
Human Partner ◽  
The Social

Objective We investigated how light interpersonal touch (IPT) provided by a robotic system supports human individuals performing a challenging balance task compared to IPT provided by a human partner. Background IPT augments the control of body balance in contact receivers without a provision of mechanical body weight support. The nature of the processes governing the social haptic interaction, whether they are predominantly reactive or predictive, is uncertain. Method Ten healthy adult individuals performed maximum forward reaching (MFR) without visual feedback while standing upright. We evaluated their control of reaching behavior and of body balance during IPT provided by either another human individual or by a robotic system in two alternative control modes (reactive vs. predictive). Results Reaching amplitude was not altered by any condition but all IPT conditions showed reduced body sway in the MFR end-state. Changes in reaching behavior under robotic IPT conditions, such as lower speed and straighter direction, were linked to reduced body sway. An Index of Performance expressed a potential trade-off between speed and accuracy with lower bitrate in the IPT conditions. Conclusion The robotic IPT system was as supportive as human IPT. Robotic IPT seemed to afford more specific adjustments in the human contact receiver, such as trading reduced speed for increased accuracy, to meet the intrinsic demands and constraints of the robotic system or the demands of the social context when in contact with a human contact provider.

scholarly journals Whole-Body Balance Control of a Humanoid Robot in Real Time Based on ZMP Stability Regions Approach

2018 ◽  
Vol 49 (7-8) ◽  
pp. 521-538
Author(s):  
Concepción A. Monje ◽  
Santiago Martinez ◽  
Paolo Pierro ◽  
Carlos Balaguer
Keyword(s):  
Real Time ◽  
Humanoid Robot ◽  
Balance Control ◽  
Whole Body ◽  
Stability Regions ◽  
Body Balance

scholarly journals Whole body balance control in Lenke 1 thoracic adolescent idiopathic scoliosis during level walking

PLoS ONE ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. e0229775
Author(s):  
Kuan-Wen Wu ◽  
Tung-Wu Lu ◽  
Wei-Chun Lee ◽  
Ya-Ting Ho ◽  
Jyh-Horng Wang ◽  
...  
Keyword(s):  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Balance Control ◽  
Whole Body ◽  
Body Balance ◽  
Level Walking

scholarly journals Acute effects of contract-relax proprioceptive neuromuscular facilitation stretching of hip abductors and adductors on dynamic balance

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e6108 ◽  
Author(s):  
Rafał Szafraniec ◽  
Krystyna Chromik ◽  
Amanda Poborska ◽  
Adam Kawczyński
Keyword(s):  
Single Dose ◽  
Balance Control ◽  
Dynamic Balance ◽  
Intervention Group ◽  
Control Group ◽  
Body Balance ◽  
Golgi Tendon Organs ◽  
Increased Risk ◽  
Proprioceptive Neuromuscular Facilitation ◽  
The Impact

Background Balance control has been shown to play a fundamental role both in everyday life and many athletic activities. An important component of balance control is the somatosensory information gained from muscle spindles and Golgi tendon organs. The changes in the muscle-tendon unit stiffness could alter the ability to detect and respond promptly to changes of an unstable environment. One of the procedures affecting muscle stiffness is stretching, and contract-relax PNF stretching (CRS) is considered as one of the safest and most effective techniques. So far, there are no studies on the impact of CRS of hip adductor and abductor muscles on body balance. These muscle groups are responsible for maintaining mediolateral balance which is of particular interest, since it is more affected by ageing and disease and since its deterioration has been associated with an increased risk of falling. In light of the above, the aim of the present study was to investigate the effects of a single dose of contract-relax proprioceptive neuromuscular facilitation stretching of hip adductors and abductors on mediolateral dynamic balance. Methods The study involved 45 healthy individuals (age 19–23 years) assigned to the intervention group (IG) or the control group (CG). Balance testing was carried out before (Pre) and immediately after CRS in the intervention group or after 5-minute rest in the control group (Post). There were performed three repetitions of the CRS targeting the adductor and abductor muscles of the hip. Results Statistically significant differences between Pre and Post condition were observed only in the intervention group. The values of all measured variables defining the body’s dynamic balance were significantly lower immediately after the applied CRS, which indicates an improved body balance: Global Index (p = 0.0001), total area of sway (p = 0.0001), external area of sway (p = 0.00004), external time (p = 0.0004) and reaction time (p = 0.0003). Conclusions A single dose of contract-relax proprioceptive neuromuscular facilitation stretching of the hip adductor and abductor muscles improved mediolateral dynamic balance.

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