Individuals With Stroke Use Asymmetrical Anticipatory Postural Adjustments When Counteracting External Perturbations

Curuk, Etem; Lee, Yun-Ju; Aruin, Alexander S.

doi:10.1123/mc.2018-0083

Cited by 7 publications

(8 citation statements)

References 23 publications

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“…It is important to detect the individual's ability in these items because it is one of the most frequent alterations after ABI. It has been shown that there are delays in the activation of these mechanisms [36,37] and an incorrect activation of the musculature both in the order of muscle activation [38] and in the musculature that is activated [37] which determines that the functionality of the movement is neither adequate nor symmetrical [37]. The scale validated in this study assesses this ability in six of its items, determining possible deficits in the anticipatory postural adjustments of the person with ABI.…”

Section: Discussionmentioning

confidence: 99%

Reliability and Validity of the Spanish Version of the Brief-BESTest in Stroke Patients

Hernández-Moreda,

Llamas-Ramos,

Llamas-Ramos

et al. 2024

JCM

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Background: Balance disorders and postural control treatments play an important role in fall prevention. The Brief-BESTest is a short-scale employed to evaluate balance and fall risk in different populations. Balance assessment is a fundamental element in patients with Acquired Brain Injury rehabilitation since postural alteration is one of the most frequent sequelae. The objective was to validate the Spanish version of the Brief-BESTest questionnaire in the stroke population. Methods: Subjects of both sexes aged over 18 years with a diagnosis of acute/chronic stroke were included. The BESTest, Mini-BESTest, Brief-BESTest, Berg Balance Scale, and Timed Up & Go Test were used to assess balance. The scales were implemented once. Cronbach’s alpha coefficient was used to assess the internal consistency and confirmatory factorial analysis was employed to assess validity. Results: A total of 44 patients with a mean age of 65.35 years (SD = 10.665) participated. Cronbach’s alpha coefficient showed a high internal consistency with a value of 0.839. In the criterion validity, there was a high positive correlation between the Brief-BESTest and BESTest (r = 0.879), Mini-BESTest (r = 0.808), and Berg Balance Scale (r = 0.711). Conclusion: The Spanish version of the Brief-BESTest scale is valid and reliable, showing adequate psychometric properties for balance assessment in patients with acute or chronic stroke.

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Section: Discussionmentioning

confidence: 99%

Reliability and Validity of the Spanish Version of the Brief-BESTest in Stroke Patients

Hernández-Moreda,

Llamas-Ramos,

Llamas-Ramos

et al. 2024

JCM

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“…MATLAB software R2016a (MathWorks, Natick, Massachusetts, USA) was used for offline data processing. EMG signals were high-pass filtered at 20 Hz, full-wave rectified, and low-pass filtered at 2 Hz [6,22]. Then, muscle onsets were derived using the Teager-Kaiser onset time detection method [23].…”

Section: Instrumentation and Data Analysismentioning

confidence: 99%

“…Balance control is often impaired in individuals with stroke, and, in this population compared to healthy age-matched individuals, APAs have been found to be decreased and delayed [5]. Furthermore, a recent study revealed that individuals with stroke have an impaired ability to generate APAs on the affected side, which is compensated by an increased anticipatory activation of muscles on the unaffected side [6]. Such an imbalanced reliance on the unaffected side could induce body asymmetry and may be associated with a high number of falls [7].…”

Section: Introductionmentioning

confidence: 99%

Perturbation-based training enhances anticipatory postural control in individuals with chronic stroke: a pilot study

Curuk

Aruin

2022

International Journal of Rehabilitation Research

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Individuals with stroke commonly have impaired balance control. The aim of this study was to investigate the effect of targeted intervention on anticipatory postural adjustments (APAs) and postural control in people with stroke. Six participants with unilateral hemiparesis due to a stroke (5.0-8.4 years post stroke) participated in a twophase random crossover study. The participants received in counterbalanced order (a) 2 weeks of experimental, targeted intervention (pushing a medicine ball attached to the ceiling using their unaffected upper extremity) and (b) 2 weeks of control, self-guided general mobility exercise program with a 1-week washout period in between. All study participants were assessed with laboratory tests before and after each intervention. Lab tests included predictable external perturbations induced by a pendulum impact and clinical assessments of balance. Bilateral electromyographic activity of eight trunk and leg muscles and center of pressure (COP) displacements were recorded, and data during the anticipatory and compensatory phases of postural control were analyzed.After the experimental intervention, as compared to control intervention, the participants showed earlier APA onsets (P < 0.05), smaller COP displacements (P < 0.05), and improved [although not significantly (P >0.05)] scores of clinical tests of balance. The results of this feasibility study provide a foundation for developing balance rehabilitation protocols focused on improving APAs in individuals with neurological disorders.

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“…32,33 In addition, the people should preciously use their reactive balance control and amplitude of trunk motions to compensate for a movement error or sudden loss of balance. 32,33 The core exercises might have influenced the anticipatory postural responses (i.e., the faster reaction time of postural trunk muscles) and better weight acceptance on the affected lower limb, 34,35 therefore, overall balance self-efficacy during functional mobility. Furthermore, core weakness would strongly influence the balance performance of people after stroke.…”

Section: Transference Benefits Of Core Training On Balance Confidencementioning

confidence: 99%

Core Stability Exercises Yield Multiple Benefits for Patients With Chronic Stroke

Karthikbabu

Ganesan

Ellajosyula

et al. 2021

Am J Phys Med Rehabil

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Objective: This study examined the effect of core stability exercises on trunk control, core muscle strength, standing weight-bearing symmetry, and balance confidence of people with chronic stroke. Design: This was an assessor-blinded randomized controlled trial involving 84 ambulatory patients with middle cerebral artery stroke, randomly assigned to three training groups. Two experimental groups practiced core stability exercises either on stable or on unstable support surfaces. In contrast, the control group received standard physiotherapy. All the participants underwent an hour-long training session a day, thrice a week over a 6-wk duration, and followed-up after 12 mos. Trunk Impairment Scale, core muscle strength, weight-bearing asymmetry in standing, and Activities-specific Balance Confidence scale were the outcome measures. Results: Compared with the control group, the two experimental groups demonstrated a significant improvement on all the outcome measures from baseline to posttraining and from baseline to 12-mo follow-up (P < 0.001). The two experimental groups demonstrated no significant difference between them on all the measures (P > 0.05). Conclusions: Core stability exercises on stable and unstable support surfaces are equally beneficial in improving trunk control, core muscle strength, standing weight-bearing symmetry, and balance confidence of ambulatory patients with chronic stroke than the standard physiotherapy.

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Individuals With Stroke Use Asymmetrical Anticipatory Postural Adjustments When Counteracting External Perturbations

Cited by 7 publications

References 23 publications

Reliability and Validity of the Spanish Version of the Brief-BESTest in Stroke Patients

Reliability and Validity of the Spanish Version of the Brief-BESTest in Stroke Patients

Perturbation-based training enhances anticipatory postural control in individuals with chronic stroke: a pilot study

Core Stability Exercises Yield Multiple Benefits for Patients With Chronic Stroke

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