Sensory Modulation and Participation in Daily Occupations in Stroke Survivors

Life after stroke: changes in sensory health and the impact on participation

BACKGROUND

Research has demonstrated that adults post-stroke may experience sensory impairments across different sensory systems. There is a gap in research describing how sensory changes after stroke affect participation in health promoting activities.

OBJECTIVES

The purpose of this study is to understand how changes in sensory health after stroke affect participation in meaningful activities.

METHODS

We adopted a qualitative phenomenological design to conduct four focus groups with ten participants: two focus groups with a cohort of adults post-stroke (n=5) and two focus groups with a cohort of stroke rehabilitation therapists and stroke caregivers (n=5). Focus group transcripts were coded using open and focused coding with NVivo software to develop themes.

RESULTS

Participants reported changes in their visual, vestibular, proprioceptive, olfactory, gustatory, tactile, and auditory systems that affected their participation in meaningful activities. Participants also reported that they experienced insufficient resources and therapies addressing their sensory health after their stroke. Analyses yielded the following themes:(1) it's hidden and invisible;(2) sensory changes affect participation and can be overwhelming; and (3) it's easy to stay inside: sensory changes negatively affect social participation.

CONCLUSIONS

Adults post-stroke experience sensory changes that restrict their participation in meaningful activities including social activities; however, these changes were often missed. More research is needed to further explore the impact of changes in sensory health and understand needs regarding the development of assessment tools and intervention protocols to address the sensory health of adults post-stroke in the clinic, home, and community.

The development and validation of the "SENSE" - Sensory and Behavioral Modulation Questionnaire for adults

Sensory modulation is critical for interacting with the physical and social environment. When sensory input from the environment is not properly perceived and modulated, it may elevate arausability, avoidant behavior, impair function and wellbeing. Sensory modulation difficulties (SMD) are mainly reported during childhood and are related to neurodevelopmental conditions such as Attention-Deficit Hyperactivity Disorder (ADHD). SMD in adulthood further deteriorate function and emotional status, hence should be screened and treated. Nonetheless, relevant measures of SMD for adults are limited. This study aims to establish the psychometric properties of the "SENSE" - Sensory and Behavioral Modulation Questionnaire for adults. Based on theoretical/clinical knowledge the SENSE measures sensitivity/arousability, habituation and avoidance. After establishing content and face validity, 663 participants aged 18-65 completed a sociodemographic and health questionnaire, the Adult ADHD Scale-5 (ASRS-5), the SENSE and the Highly Sensitive Person Scale (HSPS). Factor analysis approved the determination of SENSE scales. Medium- high internal consistency was found. SENSE discriminated between adults with/without ADHD and correlated with HSPS scores, confirming concurrent validity. CONCLUSIONS: SENSE has good psychometric properties and may be feasible for screening sensory-behavioral modulation difficulties in adults. Studies should further examine SENSE applicability to clinical populations.

Neuro-behavioural changes after acquired brain injury: The role of the occupational therapist; the interventions they use and why

INTRODUCTION

Almost half of the people living with acquired brain injury experience behavioural changes, yet there is lack of clarity both in the literature, and through major stakeholders internationally, regarding how occupational therapists contribute to neuro-behavioural rehabilitation and what their role is in this context.

METHODS

This study answers the research question: What do occupational therapists perceive as their role in behavioural rehabilitation with adults living with acquired brain injury, and what treatment approaches, if any, are they using to promote occupation? A national, qualitative, bounded case study design using semi-structured interviews was used to explore what the role of the occupational therapist is in neuro-behavioural rehabilitation across subacute brain injury units in Australia.

FINDINGS

Four themes were identified which provide clarification on the role of the occupational therapist in neuro-behavioural rehabilitation: You change the task, you change the environment, change the person; build a safe rapport; the sensory stuff is huge and, finally, owning how we think.

CONCLUSION

This bounded case study provides insight into how occupational therapists perceive their role and the interventions they use to promote occupational engagement. The lack of recognition of the occupational therapist role is a barrier to providing appropriate neuro-behavioural rehabilitation. This case study identified sensory approaches, building safe rapport and adapting the environment as the main interventions used in neuro-behavioural rehabilitation by occupational therapists.

Effects of mirror therapy on spasticity and sensory impairment after stroke: Systematic review and meta-analysis

OBJECTIVE

To review and synthesize existing evidence on the effectiveness of mirror therapy (MT) compared to active exercise-based interventions (ie, cross-training and conventional exercise) for reducing spasticity and sensory impairment in stroke survivors. TYPE: Systematic Review and Metanalysis.

LITERATURE SURVEY

Pubmed/MEDLINE, Cochrane, Embase, CINAHL, and Physiotherapy Evidence Database (PEDro), were searched.

METHODOLOGY

Randomized controlled trials (RCTs) that investigated MT effectiveness in improving spasticity and sensory impairment in stroke survivors compared to a control group.

SYNTHESIS

Fifteen RCTs (653 volunteers) were included. Spasticity improvements achieved with MT were similar to those obtained with cross-training (standard mean difference [SMD]: 0.12, 95% confidence interval [CI]: -0.43 to 0.68). In addition, when further combined with conventional exercise, spasticity improved similarly in both groups (SMD: 0.10, 95% CI: -0.16, 0.36). Lastly, when MT plus exercise was compared to exercise alone, spasticity decreased in both groups (SMD: 0.16, 95% CI: -0.16 to 0.48). Nevertheless, none of the Interventions seem effective on sensory impairment (SMD: 0.27, 95% CI: -0.28 to 0.81).

CONCLUSIONS

MT is equally effective as other exercise therapies, such as cross-training and conventional exercise, for improving spasticity in stroke survivors, whereas none of the explored interventions yielded beneficial effects on sensory impairment. Further well-designed RCTs are needed to confirm the results.

The Effects of Vestibular Rehabilitation on Poststroke Fatigue: A Randomized Controlled Trial Study

Background

A major complication caused by stroke is poststroke fatigue (PSF), and by causing limitations in doing activities of daily living (ADL), it can lower the quality of life.

Objective

The present study is an attempt to examine the effects of vestibular rehabilitation on BADL (Basic Activities of Daily Living), fatigue, depression, and Lawton Instrumental Activities of Daily Living (IADL) in patients with stroke.

Method

Patients with a history of stroke took part voluntarily in a single-blind clinical trial. The participants were allocated to control and experimental groups randomly. The experimental group attended 24 sessions of vestibular rehabilitation protocol, while the control group received the standard rehabilitation (including three sessions per week each for around 60 min). To measure fatigue, the Fatigue Impact Scale (FIS) and the Fatigue Assessment Scale (FAS) were used. Depression, BADL, and IADL were measured using the Beck Depression Inventory-II (BDI-II), Barthel Index (BI), and Lawton Instrumental Activities of Daily Living, respectively. All changes were measured from the baseline after the intervention.

Results

Significant improvement was found in the experimental group compared to the control group (p < 0.05) in FIS (physical, cognition, and social subscales), FAS, BDI-II, BADL, and IADL. Moreover, the results showed small to medium and large effect sizes for the physical subscale of FIS and FAS scores based on Cohen's d, respectively; however, no significant difference was found in terms of cognition and social subscales of FIS, BDI-II, BADL, and IADL scores.

Conclusion

It is possible to improve fatigue, depression, and independence in BADL and IADL using vestibular rehabilitation. Thus, it is an effective intervention in case of stroke, which is also well tolerated.