Musculoskeletal Loading via Running with Loads during Simulated Gravitational Transitions: Improvements in a Precision Stepping Postural Control Task

2005 ◽  
Author(s):  
Jeffrey D. Brewer ◽  
Simon M. Hsiang
Keyword(s):  
Postural Control ◽  
Control Task ◽  
Precision Stepping

Lumbosacral orthoses reduce trunk muscle activity in a postural control task

2007 ◽  
Vol 40 (8) ◽  
pp. 1731-1736 ◽  
Author(s):  
Jacek Cholewicki ◽  
N. Peter Reeves ◽  
Vanessa Q. Everding ◽  
David C. Morrisette
Keyword(s):  
Postural Control ◽  
Muscle Activity ◽  
Trunk Muscle ◽  
Control Task

scholarly journals Cortical and Cerebellar Oscillatory Responses to Postural Instability in Parkinson's Disease

2021 ◽  
Vol 12 ◽  
Author(s):  
Taylor J. Bosch ◽  
Stefan Kammermeier ◽  
Christopher Groth ◽  
Matt Leedom ◽  
Elizabeth K. Hanson ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Control ◽  
Spectral Power ◽  
Postural Instability ◽  
Oscillatory Activity ◽  
Control Task ◽  
Theta Power ◽  
Balance Task ◽  
Beta Power

Introduction: Posture and balance dysfunctions critically impair activities of daily living of patients with progressing Parkinson's disease (PD). However, the neural mechanisms underlying postural instability in PD are poorly understood, and specific therapies are lacking. Previous electrophysiological studies have shown distinct cortical oscillations with a significant contribution of the cerebellum during postural control tasks in healthy individuals.Methods: We investigated cortical and mid-cerebellar oscillatory activity via electroencephalography (EEG) during a postural control task in 10 PD patients with postural instability (PDPI+), 11 PD patients without postural instability (PDPI–), and 15 age-matched healthy control participants. Relative spectral power was analyzed in the theta (4–7 Hz) and beta (13–30 Hz) frequency bands.Results: Time-dependent postural measurements computed by accelerometer signals showed poor performance in PDPI+ participants. EEG results revealed that theta power was profoundly lower in mid-frontal and mid-cerebellar regions during the postural control task in PDPI+, compared to PDPI– and control participants. In addition, theta power was correlated with postural control performance in PD subjects. No significant changes in beta power were observed. Additionally, oscillatory changes during the postural control task differed from the resting state.Conclusion: This study underlines the involvement of mid-frontal and mid-cerebellar regions in postural stability during a balance task and emphasizes the important role of theta oscillations therein for postural control in PD.

Spinal Reflexes During Postural Control Under Psychological Pressure

Motor Control ◽  
2015 ◽  
Vol 19 (3) ◽  
pp. 242-249 ◽  
Author(s):  
Yoshifumi Tanaka
Keyword(s):  
Postural Control ◽  
Stress Responses ◽  
State Anxiety ◽  
Spinal Reflexes ◽  
Spinal Reflex ◽  
Hoffmann Reflex ◽  
Control Task ◽  
Psychological Pressure ◽  
Practice Trials ◽  
Nerve Excitation

This study investigated the effect of psychological pressure on spinal reflex excitability. Thirteen participants performed a balancing task by standing on a balance disk with one foot. After six practice trials, they performed one nonpressure and one pressure trial involving a performance-contingent cash reward or punishment. Stress responses were successfully induced; state anxiety, mental effort, and heart rates all increased under pressure. Soleus Hoffmann reflex amplitude in the pressure trial was significantly smaller than in the nonpressure trial. This modification of spinal reflexes may be caused by presynaptic inhibition under the control of higher central nerve excitation under pressure. This change did not prevent 12 of the 13 participants from successfully completing the postural control task under pressure. These results suggest that Hoffmann reflex inhibition would contribute to optimal postural control under stressful situations.

Influence of dance training on challenging postural control task

2019 ◽  
Vol 69 ◽  
pp. 31-35 ◽  
Author(s):  
M. Maheu ◽  
L. Behtani ◽  
M. Nooristani ◽  
B. Jemel ◽  
A. Delcenserie ◽  
...  
Keyword(s):  
Postural Control ◽  
Control Task ◽  
Dance Training

Muscle activation patterns during the postural control task after total knee arthroplasty

Physiotherapy ◽  
2015 ◽  
Vol 101 ◽  
pp. e771-e772
Author(s):  
T. Kobayashi ◽  
M. Yamanaka ◽  
T. Kannari ◽  
H. Horiuchi ◽  
N. Matsui ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Postural Control ◽  
Knee Arthroplasty ◽  
Muscle Activation ◽  
Control Task ◽  
Activation Patterns ◽  
Muscle Activation Patterns ◽  
Total Knee

scholarly journals Learning of a postural control task by elderly post-stroke patients

Motricidade ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 141
Author(s):  
Giordano Marcio Gatinho Bonuzzi ◽  
Tatiana Beline Freitas ◽  
Umberto Cesar Corrêa ◽  
Andrea Michele Freudenheim ◽  
José Eduardo Pompeu ◽  
...  
Keyword(s):  
Motor Learning ◽  
Postural Control ◽  
Learning Process ◽  
Healthy Subjects ◽  
Task Complexity ◽  
Control Group ◽  
Control Task ◽  
Stroke Patients ◽  
Post Stroke ◽  
Experimental Group

<p class="ResumoAbstract">The aim of this study was to compare the learning process of a postural control task between post-stroke patients and healthy subjects. The sample was composed of 20 post-stroke individuals (Experimental Group) and 20 aged matched healthy individuals (Control Group). Participants practiced a postural control task in a virtual environment with increasing of complexity. The study design involved four phases: pre-test (five trials), acquisition phase (four blocks of thirty minutes), post-test (five trials), and retention test (five trials after a week without practice). The statistical analysis was run by a 2 x 3 ANOVA (groups x learning tests). Results: There was no difference in motor learning between Experimental Group and Control Group (F= 41.22; p=0.88). In addition, it was founded that the Control Group could learn the task in a higher-level complexity than Experimental Group (F = 4.77; p = 0.01), and both groups increased the error during the trials of practice (F = 0.53; p = 0.00) because of task complexity.  Conclusion: Therefore has been found that post-stroke individuals have the ability to learn a postural control task similar to healthy subjects, and the task complexity seems to be a key-factor in order to differentiate stroke from healthy subject's motor learning process.</p>

Rate of concurrent augmented auditory feedback in postural control learning in adolescents

2020 ◽  
pp. 15-21
Author(s):  
Alexis Sánchez-Tormo ◽  
Adrià Marco-Ahulló ◽  
Isaac Estevan ◽  
Gonzalo Monfort-Torres ◽  
Xavier García-Massó
Keyword(s):  
Postural Control ◽  
Auditory Feedback ◽  
Control Strategies ◽  
Control Group ◽  
Control Task ◽  
Feedback Group ◽  
Post Test ◽  
Control Learning ◽  
Test Practice ◽  
Postural Task

Introduction: The main objective of this study was to determine the rate of auditory concurrent feedback that best enhanced the learning of a continuous postural task in adolescents. Material and methods: A sample of thirty adolescents (13 to 14-years old) was used, who were assigned to three groups: i) control group (CG); ii) 100% auditory feedback group and iii) 67% auditory feedback group. The subjects performed a pre-test, practice, post-test and a retention (24 hours after the practice). In the postural control task subjects were instructed to remain on a seesaw (unstable in anteroposterior position) and keeping it as level as possible. Results: The results demonstrated that concurrent auditory feedback did not enhance the performance of the continuous postural task, although concurrent auditory feedback (both 100% and 67% rates) caused changes to the postural control strategies. Conclusions: From this it was concluded that 100% and 67% concurrent auditory feedback are more recommendable than no-feedback in adolescents’ postural control learning.

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