Apathy exacerbates postural control impairments in stroke survivors: The potential effects of cognitive dual-task for improving postural control

Dehmiyani, Arian; Mehdizadeh, Hajar; Azad, Akram; Cheraghifard, Moslem; Jamali, Shamsi; Davoudi, Mehrdad; Shokouhyan, Seyed Mohammadreza; Taghizadeh, Ghorban

doi:10.1016/j.neuropsychologia.2022.108344

Cited by 2 publications

(2 citation statements)

References 46 publications

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“…The SD, MV, and MPF were calculated separately for each axis. The SD reflects the variability of the COP amplitude [ 19 ] and provides information about the dynamic aspects of postural control [ 27 ]. The MPF indicates the average frequency within a power spectrum and reflects ankle stiffness [ 17 , 28 ].…”

Section: Methodsmentioning

confidence: 99%

Effects of arousal and valence on center of pressure and ankle muscle activity during quiet standing

Takahashi,

Kaneko,

Yokoyama

et al. 2024

PLoS ONE

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Emotion affects postural control during quiet standing. Emotional states can be defined as two-dimensional models comprising valence (pleasant/unpleasant) and arousal (aroused/calm). Most previous studies have investigated the effects of valence on postural control without considering arousal. In addition, studies have focused on the center of pressure (COP) trajectory to examine emotional effects on the quiet standing control; however, the relationship between neuromuscular mechanisms and the emotionally affected quiet standing control is largely unknown. This study aimed to investigate the effects of arousal and valence on the COP trajectory and ankle muscle activity during quiet standing. Twenty-two participants were instructed to stand on a force platform and look at affective pictures for 72 seconds. The tasks were repeated six times, according to the picture conditions composed of arousal (High and Low) and valence (Pleasant, Neutral, and Unpleasant). During the task, the COP, electromyogram (EMG) of the tibialis anterior and soleus muscles, and electrocardiogram (ECG) were recorded. The heart rate calculated from the ECG was significantly affected by valence; the value was lower in Unpleasant than that in Neutral and Pleasant. The 95% confidence ellipse area and standard deviation of COP in the anterior-posterior direction were lower, and the mean power frequency of COP in the anterior-posterior direction was higher in Unpleasant than in Pleasant. Although the mean velocity of the COP in the medio-lateral direction was significantly lower in Unpleasant than in Pleasant, the effect was observed only when arousal was low. Although the EMG variables were not significantly affected by emotional conditions, some EMG variables were significantly correlated with the COP variables that were affected by emotional conditions. Therefore, ankle muscle activity may be partially associated with postural changes triggered by emotional intervention. In conclusion, both valence and arousal affect the COP variables, and ankle muscle activity may be partially associated with these COP changes.

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Section: Methodsmentioning

confidence: 99%

Effects of arousal and valence on center of pressure and ankle muscle activity during quiet standing

Takahashi,

Kaneko,

Yokoyama

et al. 2024

PLoS ONE

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“…Others advocated the importance of considering the sensory inputs, particularly in terms of weighting the various proprioceptive signals, a critical consideration in optimal postural control ( Gandevia et al, 1992 ; Lackner and DiZio, 2005 ; Carver et al, 2006 ). It is indeed well established that musculoskeletal injuries ( Haghighat et al, 2021a ; Haghighat et al, 2021b ; Haghighat et al, 2021c ; Haghighat et al, 2021d ; Davoudi et al, 2022a ), neuromusculoskeletal disease, such as stroke, Parkinson’s, Multiple Sclerosis, Chronic obstructive pulmonary disease ( Davoudi et al, 2022b ) and other psychological factors including anxiety, are associated with disrupting the function of the sensory systems ( Jamali et al, 2019 ; Dehmiyani et al, 2022 ). Change in sensory input function has also been observed among patients with NSLBP ( Newcomer et al, 2000 ).…”

Section: Introductionmentioning

confidence: 99%

Distinction of non-specific low back pain patients with proprioceptive disorders from healthy individuals by linear discriminant analysis

Shokouhyan

Davoudi

Hoviattalab

et al. 2022

Front. Bioeng. Biotechnol.

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The central nervous system (CNS) dynamically employs a sophisticated weighting strategy of sensory input, including vision, vestibular and proprioception signals, towards attaining optimal postural control during different conditions. Non-specific low back pain (NSLBP) patients frequently demonstrate postural control deficiencies which are generally attributed to challenges in proprioceptive reweighting, where they often rely on an ankle strategy regardless of postural conditions. Such impairment could lead to potential loss of balance, increased risk of falling, and Low back pain recurrence. In this study, linear and non-linear indicators were extracted from center-of-pressure (COP) and trunk sagittal angle data based on 4 conditions of vibration positioning (vibration on the back, ankle, none or both), 2 surface conditions (foam or rigid), and 2 different groups (healthy and non-specific low back pain patients). Linear discriminant analysis (LDA) was performed on linear and non-linear indicators to identify the best sensory condition towards accurate distinction of non-specific low back pain patients from healthy controls. Two indicators: Phase Plane Portrait ML and Entropy ML with foam surface condition and both ankle and back vibration on, were able to completely differentiate the non-specific low back pain groups. The proposed methodology can help clinicians quantitatively assess the sensory status of non-specific low back pain patients at the initial phase of diagnosis and throughout treatment. Although the results demonstrated the potential effectiveness of our approach in Low back pain patient distinction, a larger and more diverse population is required for comprehensive validation.

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Apathy exacerbates postural control impairments in stroke survivors: The potential effects of cognitive dual-task for improving postural control

Cited by 2 publications

References 46 publications

Effects of arousal and valence on center of pressure and ankle muscle activity during quiet standing

Effects of arousal and valence on center of pressure and ankle muscle activity during quiet standing

Distinction of non-specific low back pain patients with proprioceptive disorders from healthy individuals by linear discriminant analysis

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