Influences of upper limb orthosis on trunk muscle activity during static and dynamic sitting tasks for hemiparetic stroke.

Background: We aimed to clarify the immediate effect of wearing the Omo Neurexa upper limb suspended orthosis (Ottobock Japan, Tokyo, Japan) on trunk muscle activity during seated tasks.

Methods: Fifteen participants with upper limb hemiparesis were included. Surface electromyography of the thoracic and lumbar erector spinae and the external oblique muscles was performed.

Analysis of the Recovery Process and Activities of Daily Living Independence in Pusher Behavior and Unilateral Spatial Neglect.

Objective: To investigate the recovery processes of pusher behavior (PB) and unilateral spatial neglect (USN) based on the severity of PB and USN, and to determine the relationship between activities of daily living (ADL) independence levels.

Design: This retrospective study aimed to examine the temporal changes and their association with ADL independence levels based on the severity of PB and USN.

Setting: Recovery ward of Moriyama Neurological Center Hospital between March 2017 and October 2022.

Brain Activity in Visual-Motor Illusions With Enhanced Joint Motion Intensity.

Background Visual-motor illusion (VMI) is a cognitive approach used to evoke kinesthetic sensations. Research suggests that VMI can modulate brain activity depending on the specific joint movement observed. This study aimed to identify differences in brain activity when observing video images of joint movements at different intensities of movement in VMI.

Effects of a Stimulus Response Task Using Virtual Reality on Unilateral Spatial Neglect: A Randomized Controlled Trial.

Objective: To investigate the effects of a stimulus response task using virtual reality (VR) for unilateral spatial neglect (USN).

Design: Double-blind randomized controlled trial.

Setting: Acute phase hospital where stroke patients are hospitalized.

Effects of a visual search task in a virtual reality space with a moving background on spatial cognition and standing balance in patients with left hemiparetic stroke.

We examined effects of a visual search task (VST) in virtual reality (VR) with a moving background on spatial cognition and standing balance in left hemiparetic strokes. The VST with background deviation was allocated to Case A. In Case B, the VST without the deviation was performed.

Effects of Functional Electrical Stimulation on Attention and Brain Activity in Healthy Participants Using Near-Infrared Spectroscopy: An Interventional Study.

Background Involuntary limb activation using functional electrical stimulation (FES) can improve unilateral spatial neglect. However, the impact of FES on brain activity related to spatial attention remains unclear. Thus, in this study, we aimed to examine the effects of FES on spatial attention.

Effects of galvanic vestibular stimulation on postural righting reactions in hemiplegia.

Patients with post-stroke hemiplegia often exhibit reduced ability to maintain sitting balance, a crucial factor for predicting prognosis. Galvanic vestibular stimulation (GVS) influences postural control by stimulating vestibular organ. Although several studies have focused on GVS in static postures, no studies have demonstrated the influence of GVS on righting reactions.

Immediate effects of standing unstable board intervention on the non-paralyzed leg on sitting balance in severe hemiplegia: a randomized controlled trial.

Background: Unstable board intervention for patients with stroke improves sitting balance and trunk function. However, because patients with severe stroke are at high risk of falling, it is mostly adapted in mild cases.

Objective: We aimed to examine the effect of standing unstable board intervention for the non-paralyzed lower limbs on sitting balance in patients with hemiplegia.

Differences in the early stages of motor learning between visual-motor illusion and action observation.

The visual-motor illusion (VMI) induces a kinesthetic illusion by watching one's physically-moving video while the body is at rest. It remains unclear whether the early stages (immediately to one hour later) of motor learning are promoted by VMI. This study investigated whether VMI changes the early stages of motor learning in healthy individuals.

Effects of Task-related Trunk Training with Sensory Electrical Stimulation on Sitting Balance in Stroke Survivors: A Randomized Controlled Trial.

Objectives: The aim of this study was to investigate the immediate effect of sensory electrical stimulation (SES) and task-related trunk training (TRTT) interventions on sitting postural control in stroke survivors.

Methods: Acute to subacute stroke survivors were screened and recruited for this study. Patients were randomly assigned to the SES group, receiving TRTT combined with simultaneous SES of the neck and lumbar muscles, or to the sham group, receiving TRTT combined with sham stimulation.

Effects of Visual-Motor Illusion via Image Videos Showing Increased Exercise Intensity on the Tibial Anterior during Sit-to-Stand Movement: A Study of Healthy Participants.

Visual-motor illusion (VMI) elicits kinesthetic sensation from visual stimulation. We have previously performed ankle motion VMI with resistance applied to the ankle joint on the paralyzed side (power-VMI (P-VMI)) and ankle motion VMI without resistance (standard-VMI (S-VMI)) to activate the tibialis anterior (TA) muscle in stroke-paralyzed patients and compared sit-to-stand (STS) durations, but these studies did not measure TA activity during the STS movement. The purpose of this study was to evaluate the effects of different intensities of visual stimuli presented during VMI on TA and STS movement.

Effect of stimulation-driven attention in virtual reality balloon search training of patients with left unilateral spatial neglect after stroke: A randomized crossover study.

Patients with unilateral spatial neglect (USN) commonly experiences stimulus-driven attention deficit characterized by unexpected stimuli detection. We investigated whether virtual reality (VR) balloon search training with the screen background shifted to left space could improve stimulus-driven attention in patients with USN. The participants were divided into two groups: immediate VR group (n = 14) and delayed VR group (n = 14).

Intra- and inter-rater reliability of angle assessment for righting reaction from a tilted sitting position in healthy participants.

[Purpose] Lateral balance and the righting reaction are related to trunk function and many activities of daily living. However, there are no studies evaluating the assessment of the righting reaction while ensuring safety. This study aimed to clarify the reliability of assessments for the righting reaction from a tilted sitting position in healthy participants.

Recovery process of vertical perception and activities of daily living in stroke patients: A retrospective cohort study.

Introduction: Clarifications regarding the recovery process of the subjective postural vertical (SPV) and activities of daily living in stroke patients are required to help clinicians determine treatment plans. Therefore, we aimed to investigate the characteristics of the longitudinal recovery process of SPV and activities of daily living after stroke.

Methods: Overall, 109 patients with stroke were enrolled.

Immediate Effect of an Intervention Using a Head-mounted Display with a Modified Pitch Angle on Spatial Awareness and Standing Balance in Stroke Hemiparesis.

Objectives: This study aimed to clarify the effect of an intervention using a head-mounted display with a web camera set at a modified pitch angle on spatial awareness, sit-to-stand movement, and standing balance in patients with left and right hemisphere damage.

Methods: The participants were 12 patients with right hemisphere damage and 12 patients with left hemisphere damage. The line bisection test, a sit-to-stand movement, and balance assessment were performed before and after the intervention.

Predictive factors for walking in acute stroke patients: a multicenter study using classification and regression tree analysis.

[Purpose] Walking ability should be predicted as early as possible in acute stroke patients. The purpose is to construct a prediction model for independent walking from bedside assessments using classification and regression tree analysis. [Participants and Methods] We conducted a multicenter case-control study with 240 stroke patients.

Effects of unilateral neck muscle vibration on standing postural orientation and spatial perception in healthy subjects based on stimulus duration and simultaneous stimulation of trunk muscles.

Neck muscle vibration (NMV) influences proprioceptive sensations and modulates standing postural orientation and spatial perception. However, the effects of NMV in healthy participants would vary based on the influence of stimulus duration and combination with trunk muscle vibration. Therefore, this study with a cross-over design clarified these effects.

The Effect of Trunk Position on Attentional Disengagement in Unilateral Spatial Neglect.

Unilateral spatial neglect (USN) causes difficulties in disengaging attention from the right side to unexpected targets on the left. However, the relationship between egocentric spatial position and attentional disengagement remains unclear. Therefore, this study aimed to clarify the relationship between trunk position and attentional disengagement.

Effects of visual-motor illusions with different visual stimuli on the sit-to-stand of people with hemiplegia following stroke: A randomized crossover controlled trial.

Background: The objective of this study was to determine the effects of different visual stimuli during visual-motor illusion on sit-to-stand in people with hemiplegia following stroke.

Methods: This was a randomized crossover controlled trial. Twenty people with hemiplegia following stroke were randomly divided into groups.

Effects and Adaptation of Visual-Motor Illusion Using Different Visual Stimuli on Improving Ankle Joint Paralysis of Stroke Survivors-A Randomized Crossover Controlled Trial.

Visual-motor illusion (VMI) is an intervention to induce kinesthetic sensation from visual stimuli. We aimed to compare the effects of VMI of different visual stimuli on the paralyzed side ankle joint of stroke hemiplegic patients (hemiplegic patients) and to clarify their indication. We applied two types of VMI images of ankle dorsiflexion: ankle dorsiflexion without resistance (standard VMI (S-VMI)) and maximum effort dorsiflexion with resistance (power VMI (P-VMI)).

Efficacy of sitting balance training with delayed visual feedback among patients with stroke: a randomized crossover clinical trial.

[Purpose] This study aimed to determine the effect of delayed visual feedback on the center of pressure and sitting balance in patients with stroke. [Participants and Methods] This was a single-blinded, randomized crossover trial. The duration of each intervention in real-time visual feedback and delayed visual feedback conditions while sitting on the platform was five days.

Reaction time analysis in patients with mild left unilateral spatial neglect employing the modified Posner task: vertical and horizontal dimensions.

Unilateral spatial neglect (USN) is a common neurological syndrome that develops after a right hemisphere lesion. By examining the performance of the modified Posner task added to the vertical dimensions of the left and right visual fields, we studied whether the lower left area had different neglect symptoms than the other locations. 41 patients with right hemisphere damage were classified into those with mild USN (USN+ ; n = 20) and without USN (USN- ; n = 21).