Pilot and Feasibility Studies in Rehabilitation Research: A Review and Educational Primer for the Physiatrist Researcher

Jointly assessing multiple endpoints in pilot and feasibility studies

Pilot and feasibility studies are routinely used to determine whether a definitive trial should be pursued; however, the methodologies used to assess feasibility endpoints are often basic and are rarely informed by the requirements of the planned future trial. We propose a new method for analyzing feasibility outcomes which can incorporate relationships between endpoints, utilize a preliminary study design for a future trial and allow for multiple types of feasibility endpoints. The approach specifies a Joint Feasibility Space (JFS) which is the combination of feasibility outcomes that would render a future trial feasible. We estimate the probability of being in the JFS using Bayesian methods and use simulation to create a decision rule based on frequentist operating characteristics. We compare our approach to other general-purpose methods in the literature with simulation and show that our approach has approximately the same performance when analyzing a single feasibility endpoint but is more efficient with more than one endpoint. Feasibility endpoints should be the focus of pilot and feasibility studies. The analyses of these endpoints deserve more attention than they are given, and we have provided a new, effective method their assessment.

Models of Care for Older People: A Scoping Review

BACKGROUND

International recognition of the increasing importance of care for older people has seen growing interest in models of care for older people. Yet there is limited information about the scope and breadth of models of care for older people. This article clarifies what is known about models of care for older people by summarizing relevant publications, describing the models depicted in these publications, and synthesizing the outcomes and impact presented in the publications.

METHOD

A scoping review was conducted that involved searching multiple databases to identify relevant publications, published in English, which presented a model of care for older people-specifically, non-Indigenous people aged ≥ 65 years and/or Indigenous people aged ≥ 50 years; and included evidence, broadly defined, about the utility or otherwise of the model. Commentaries, narrative letters, editorials, and reviews were excluded.

RESULTS

From 21,767 publications, 276 were deemed relevant. From these, four key findings are apparent. First, models of care for older people are understood in disparate ways and are typically devoid of clear stepwise guidance. Second, most of the publications reported on a multidisciplinary approach. Third, they generally failed to involve carers. Fourth, very few publications reported on studies conducted in a rural area, and none involved Indigenous people.

CONCLUSION

Given the heterogeneity and breadth of models of care for older people, further research is needed to establish: a definition of a model of care for older people; reporting standards; the factors that help or hinder their effectiveness; how to ensure carer involvement; and how to adapt models of care for older people for priority populations.

'It helps you forget your worries': A pilot study exploring music therapy in the acute hospital aged care setting

OBJECTIVES

Few studies have explored music therapy (MT) in an acute aged care inpatient setting. We aimed to assess feasibility and patient/staff perceptions of an 8-week MT program on an acute geriatric ward.

METHODS

An 8-week in-person MT program, comprising brief receptive musical interventions up to twice-weekly. All patients admitted to the aged care ward were eligible for inclusion. A hard copy survey was used to assess patient and staff perceptions of MT. Themes raised in free-text responses were manually coded within a thematic analysis approach. A mixed methods approach was used to obtain and analyse data relating to feasibility and patient and staff perceptions of the MT intervention.

RESULTS

The 8-week program ran to completion and was delivered to a median of 11 patients (IQR 9-12) each session (median 8 new/day). In total, 10 patients completed surveys, mean age 81.1 (SD 7.7); 60% were women and all had cognitive impairment. Following an MT session, eight of eight responding patients reported feeling happy and eight of eight reported they would recommend MT. Staff respondents (n = 19) reported patients appeared happy (19/19), relaxed (13/19) and all would recommend MT to other patients. Common themes were that MT was followed by improved patient behaviour and mood, and stimulated patients.

CONCLUSIONS

An acute aged care inpatient MT program proves feasible and well-received by staff and patients. Future research may focus on more robust data collection in larger sample sizes, specific types of MT and more in-depth exploration of the patient and carer experiences.

Feasibility of Augmenting Cognitive Strategy Training With Non-Invasive Brain Stimulation

Many individuals post-stroke have difficulty identifying if or how they can continue performing meaningful daily life tasks. The objective of this study was to evaluate the feasibility of metacognitive strategy training (MCST) and transcranial direct current stimulation (tDCS) in chronic stroke. A case series design was used. Participants completed 12 intervention sessions over 4 weeks consisting of 20 min of tDCS and 45 min of MCST to address occupational performance goals. Feasibility outcomes of acceptability and safety/tolerability were evaluated and measures of occupational performance were administered pre- and post-intervention. Participants perceived the intervention to be highly acceptable and relevant to their needs. Large improvements were observed for performance and satisfaction with goals trained (Hedge's g = 2.07 and 2.11, respectively) and untrained (Hedge's g = 1.25 and 1.43, respectively) within the intervention. An intervention combining MCST with tDCS was feasible to administer and positively received by stakeholders; further research is warranted.

Neuromotor Rehabilitation Interventions After Pediatric Stroke: A Focused Review

Pediatric stroke is a condition that often results in life-long motor, cognitive, or sensory deficits for children. The purpose of this focused review is to compile the most recent literature on pediatric stroke neuromotor interventions and summarize evidence for use by rehabilitation providers and researchers. Terms including stroke, pediatric, and neuromotor were searched with appropriate MeSH terms. Information was collected regarding interventions conducted and outcome measures used for each article. Interventions and outcome measures were organized based on ICF components (Body Structure and Function, Activity, Participation, and Environmental Factors). 16 articles were included after full-text screens. From these 16 articles, a large majority of them included some form of neuromodulation as a part of intervention. Results identified a potentially problematic gap between domains addressed by interventions and measured by outcomes, with a need to include more expansive outcome measures in research studies. There are several areas of potential growth in pediatric stroke literature. Research studies should be precise when describing included samples. As interventions for pediatric stroke shift toward neuromodulation and other neurologic treatments, there is a need for well-defined populations, both clinically in the community as well as in research studies. There is also a need for US guidelines for rehabilitation after pediatric stroke. Overall, the trend in the literature seems to suggest that combining some form of neuromodulatory technique with existing recommended rehabilitation technique (ex: CIMT) may promote overall recovery for children after stroke, though further research is needed.