Sub-concussive trauma, acute concussion, and history of multiple concussions: Effects on quiet stance postural control stability

2018 ◽  
Vol 132 ◽  
pp. 74-80 ◽  
Author(s):  
J.K. Dierijck ◽  
A.D. Wright ◽  
J.D. Smirl ◽  
K. Bryk ◽  
P. van Donkelaar
Keyword(s):  
Postural Control ◽  
Quiet Stance ◽  
History Of ◽  
Control Stability

Differences in Joint-Position Sense and Vibratory Threshold in Runners With and Without a History of Overuse Injury

2015 ◽  
Vol 24 (1) ◽  
pp. 6-12 ◽  
Author(s):  
Tiffany Switlick ◽  
Thomas W. Kernozek ◽  
Stacey Meardon
Keyword(s):  
Postural Control ◽  
Outcome Measures ◽  
Overuse Injury ◽  
Position Sense ◽  
Joint Position Sense ◽  
Sensory Threshold ◽  
Sensorimotor Function ◽  
Joint Position ◽  
Ankle Eversion ◽  
History Of

Context:A relationship between altered postural control and injury has been reported in sports. Sensorimotor function serves a fundamental role in postural control and is not often studied in runners. Persons who sustain running injury may have altered sensorimotor function contributing to risk of injury or reinjury.Objectives:To determine if differences in knee and ankle proprioception or plantar sensation exist between injured and noninjured runners.Design:Retrospective case-control study.Setting:University campus.Participants:Twenty runners with a history of lower-extremity overuse injury and 20 noninjured runners were examined. Injured runners were subcategorized into 2 groups based on site of injury: foot/ankle and knee/hip.Main Outcome Measures:Active absolute joint-repositioning error of the ankle at 20° inversion and 10° eversion and the knee at 15° and 40° flexion was assessed using an isokinetic dynamometer. Vibratory threshold at the calcaneus, arch, and great toe was determined for each subject using a handheld electric sensory threshold instrument.Results:Runners in the injured-foot/ankle group had increased absolute error during ankle-eversion repositioning (6.55° ± 3.58°) compared with those in the noninjured (4.04° ± 1.78°, P = .01) and the hip/knee (3.63° ± 2.2°, P = .01) groups. Runners in the injured group, as a whole, had greater sensitivity in the arch of the plantar surface (2.94 ± 0.52 V) than noninjured runners (2.38 ± 0.53 V, P = .02).Conclusions:Differences in ankle-eversion proprioception between runners with a history of ankle and foot injuries and noninjured runners were observed. Runners with a history of injury also displayed an increased vibratory threshold in the arch region compared with noninjured runners. Poor ankle-joint-position sense and increased plantar sensitivity suggest altered sensorimotor function after injury. These factors may influence underlying postural control and contribute to altered loading responses commonly observed in injured runners.

scholarly journals The effect of footwear on postural control in bipedal quiet stance

2012 ◽  
Vol 4 (2) ◽  
pp. 115-122 ◽  
Author(s):  
Peter A. Federolf ◽  
Lilian Roos ◽  
Benno Nigg
Keyword(s):  
Postural Control ◽  
Quiet Stance

Romberg ratio coefficient in quiet stance and postural control in Parkinson’s disease

2018 ◽  
Vol 39 (8) ◽  
pp. 1355-1360 ◽  
Author(s):  
Teresa Paolucci ◽  
Marco Iosa ◽  
Giovanni Morone ◽  
Matteo Delle Fratte ◽  
Stefano Paolucci ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Control ◽  
Quiet Stance

scholarly journals A new perspective on transient characteristics of quiet stance postural control

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0237246 ◽  
Author(s):  
Cody A. Reed ◽  
Ajit M. W. Chaudhari ◽  
Lise C. Worthen-Chaudhari ◽  
Kimberly E. Bigelow ◽  
Scott M. Monfort
Keyword(s):  
Postural Control ◽  
Quiet Stance ◽  
Transient Characteristics ◽  
New Perspective

scholarly journals The Contribution of Proprioceptive Information to Postural Control in Elderly and Patients with Parkinson’s Disease with a History of Falls

2014 ◽  
Vol 8 ◽  
Author(s):  
Esther M. J. Bekkers ◽  
Kim Dockx ◽  
Elke Heremans ◽  
Sarah Vercruysse ◽  
Sabine M. P. Verschueren ◽  
...  
Keyword(s):  
Postural Control ◽  
Proprioceptive Information ◽  
History Of

scholarly journals Fatigue-Induced Alterations of Static and Dynamic Postural Control in Athletes With a History of Ankle Sprain

2013 ◽  
Vol 48 (2) ◽  
pp. 203-208 ◽  
Author(s):  
Simon Steib ◽  
Astrid Zech ◽  
Christian Hentschke ◽  
Klaus Pfeifer
Keyword(s):  
Postural Control ◽  
Ankle Sprain ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Center Of Pressure ◽  
Sport Activity ◽  
Sensorimotor Control ◽  
Treadmill Running ◽  
History Of ◽  
Anterior Posterior

Context: Sensorimotor control is impaired after ankle injury and in fatigued conditions. However, little is known about fatigue-induced alterations of postural control in athletes who have experienced an ankle sprain in the past. Objective: To investigate the effect of fatiguing exercise on static and dynamic balance abilities in athletes who have successfully returned to preinjury levels of sport activity after an ankle sprain. Design: Cohort study. Setting: University sport science research laboratory. Patients or Other Participants: 30 active athletes, 14 with a previous severe ankle sprain (return to sport activity 6–36 months before study entry; no residual symptoms or subjective instability) and 16 uninjured controls. Intervention(s): Fatiguing treadmill running in 2 experimental sessions to assess dependent measures. Main Outcome Measure(s): Center-of-pressure sway velocity in single-legged stance and time to stabilization (TTS) after a unilateral jump-landing task (session 1) and maximum reach distance in the Star Excursion Balance Test (SEBT) (session 2) were assessed before and immediately after a fatiguing treadmill exercise. A 2-factorial linear mixed model was specified for each of the main outcomes, and effect sizes (ESs) were calculated as Cohen d. Results: In the unfatigued condition, between-groups differences existed only for the anterior-posterior TTS (P = .05, ES = 0.39). Group-by-fatigue interactions were found for mean SEBT (P = .03, ES = 0.43) and anterior-posterior TTS (P = .02, ES = 0.48). Prefatigue versus postfatigue SEBT and TTS differences were greater in previously injured athletes, whereas static sway velocity increased similarly in both groups. Conclusions: Fatiguing running significantly affected static and dynamic postural control in participants with a history of ankle sprain. Fatigue-induced alterations of dynamic postural control were greater in athletes with a previous ankle sprain. Thus, even after successful return to competition, ongoing deficits in sensorimotor control may contribute to the enhanced ankle reinjury risk.

scholarly journals Postural control in girls with adolescent idiopathic scoliosis while wearing a Chêneau brace or performing active self-correction: a pilot study

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7513 ◽  
Author(s):  
Elżbieta Piątek ◽  
Michał Kuczyński ◽  
Bożena Ostrowska
Keyword(s):  
Fractal Dimension ◽  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Postural Control ◽  
Reciprocal Relationship ◽  
Quiet Standing ◽  
Quiet Stance ◽  
Therapeutic Modalities ◽  
Eyes Closed ◽  
Eyes Open

Background It is known that adolescent idiopathic scoliosis (AIS) is often accompanied by balance deficits. This reciprocal relationship must be taken into account when prescribing new therapeutic modalities because these may differently affect postural control, interacting with therapy and influencing its results. Objective The purpose was to compare postural control in girls with AIS while wearing the Chêneau brace (BRA) or performing active self-correction (ASC) with their postural control in a quiet comfortable stance. Methods Nine subjects were evaluated on a force plate in three series of two 20-s quiet standing trials with eyes open or closed; three blocks were randomly arranged: normal quiet stance (QST), quiet stance with BRA, and quiet stance with ASC. On the basis of centre-of-pressure (COP) recordings, the spatial and temporal COP parameters were computed. Results and Discussion Performing ASC was associated with a significant backward excursion of the COP mean position with eyes open and closed (ES = 0.56 and 0.65, respectively; p < 0.05). This excursion was accompanied by an increase in the COP fractal dimension (ES = 1.05 and 0.98; p < 0.05) and frequency (ES = 0.78; p = 0.10 and ES = 1.14; p < 0.05) in the mediolateral (ML) plane. Finally, both therapeutic modalities decreased COP sample entropy with eyes closed in the anteroposterior (AP) plane. Wearing BRA resulted in ES = 1.45 (p < 0.05) while performing ASC in ES = 0.76 (p = 0.13). Conclusion The observed changes in the fractal dimension (complexity) and frequency caused by ASC account for better adaptability of patients to environmental demands and for their adequate resources of available postural strategies in the ML plane. These changes in sway structure were accompanied by a significant (around 25 mm) backward excursion of the mean COP position. However, this improvement was achieved at the cost of lower automaticity, i.e. higher attentional involvement in postural control in the AP plane. Wearing BRA may have an undesirable effect on some aspects of body balance.

scholarly journals The Effect of Continuous and Discretized Presentations of Concurrent Augmented Visual Biofeedback on Postural Control in Quiet Stance

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0132711 ◽  
Author(s):  
Carmen D’Anna ◽  
Maurizio Schmid ◽  
Daniele Bibbo ◽  
Maurizio Bertollo ◽  
Silvia Comani ◽  
...  
Keyword(s):  
Postural Control ◽  
Quiet Stance ◽  
Visual Biofeedback

Potential Effects of Sleep Deprivation on Sensorimotor Integration during Quiet Stance in Young Adults

2010 ◽  
Vol 1 (1) ◽  
Author(s):  
Chantelle A. Nielson ◽  
Emily G. Deegan ◽  
Aaron S.L. Hung ◽  
Abraham J Nunes
Keyword(s):  
Young Adults ◽  
Postural Control ◽  
Sleep Deprivation ◽  
Root Mean Square ◽  
Sensory Feedback ◽  
Sensorimotor Integration ◽  
Healthy Adults ◽  
Mean Square ◽  
Quiet Stance ◽  
Centre Of Pressure

The purpose of this study was to compare the effects of sleep deprivation and rest on postural control. It was hypothesized that significant increases in COP deviations will occur after sleep deprivation. Methods. Four healthy adults (age= 21.50 years; mass= 68.93 kg) participated in two protocols involving sleep and sleep-deprivation. Within each condition multiple 40s impairments of visual, somatosensory, and/or vestibular sensory feedback were performed. Balance was quantified using root-mean-square (RMS) of the centre of pressure (COP) and COP Variance. Results. Two-way ANOVA demonstrated no significant effect of sleep deprivation on balance between sensory insults. Paired t-tests were performed nonetheless and revealed significant differences within the sleep-deprived condition. COP RMS and Variance were significantly greater medio-laterally with all systems impaired (ALL) (3.43 ± 0.63 mm, p

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