Utility of 3D modelling of the patient's living environment as perceived by occupational therapists.

INTRODUCTION: Visiting a patient's living environment is important for occupational therapists, albeit costly and time consuming. MapIt is a mobile app producing a 3D representation of a home with the possibility of taking measurements. The purpose of this study was to explore the utility of a 3D representation of a patient's home for the clinical practice of occupational therapists. METHODS: Case study in which the unit of analysis was the utility of MapIt as defined by ISO 9241-11:2018 and as perceived by occupational therapists in four different occupational therapy clinical settings (Canada). Onsite observations with 10 occupational therapists (and their patients) were triangulated with data from interviews, diaries, and logbooks. Inductive thematic condensation led to emerging conclusions for each clinical setting, fuelling the next case data collection and analysis. Inter-case analysis was corroborated by additional occupational therapists, through crowdsourcing and expert review. RESULTS: Occupational therapists' clinical reasoning was supported by the MapIt app, enhancing and streamlining their work and inducing adjustments to treatment plans. Occupational therapists saw and measured the patient's environment remotely, to better match person-environment-occupation and promote occupational engagement. MapIt's 3D representations were judged useful to communicate between occupational therapists and stakeholders, to educate, allow continuity, optimise resources, minimise the patient's time on a waitlist for homecare, and save time for everyone. DISCUSSION: MapIt allowed occupational therapists who performed home visits to bring a little of the patients' home to their office, whereas occupational therapists without access to the home could see it and take measurements. MapIt's utility was confirmed for practice in clinical settings and for better continuity of care between settings. CONCLUSION: MapIt makes it possible for occupational therapists to 'walk around' the patient's home remotely, but the possibility of measuring environmental elements is a 3D model's true added value over currently used photos or short videos.

What If Deliberately Dying Is an Occupation?

In some legal and societal circumstances, people freely and capably plan, organize, and precipitate their own death. Drawing on published literature, we critically reflect on how deliberately ending one's own life fits with the current definitions of the concept of occupation. Using an occupational science and occupational therapy theoretical reflection, we argue that deliberately dying can for some people be considered a purposeful and meaningful occupation. Implications for such an occupational therapy practice are discussed: attending to the occupational needs of specific groups of people, reconsidering definitions and conceptual work, advocating for occupational justice in ending life activities, reflecting on ethical conundrums around self-harm activities within the scope of practice, and exploring deliberate death as a purposeful and meaningful occupation. Because deliberately dying is something that some people do, in this article we aim to open a dialogue within the field of occupational science and occupational therapy about this sensitive and potentially controversial issue.

Self-Selection of Bathroom-Assistive Technology: Development of an Electronic Decision Support System (Hygiene 2.0).

BACKGROUND: A clinical algorithm (Algo) in paper form is used in Quebec, Canada, to allow health care workers other than occupational therapists (OTs) to make bathroom adaptation recommendations for older adults. An integrated knowledge transfer process around Algo suggested an electronic version of this decision support system (electronic decision support system [e-DSS]) to be used by older adults and their caregivers in search of information and solutions for their autonomy and safety in the bathroom. OBJECTIVE: This study aims to (1) create an e-DSS for the self-selection of bathroom-assistive technology by community-dwelling older adults and their caregivers and (2) assess usability with lay users and experts to improve the design accordingly. METHODS: On the basis of a user-centered design approach, the process started with content identification for the prototype through 7 semistructured interviews with key informants of various backgrounds (health care providers, assistive technology providers, and community services) and 4 focus groups (2 with older adults and 2 with caregivers). A thematic content transcript analysis was carried out and used during the creation of the prototype. The prototype was refined iteratively using think-aloud and observation methods with a clinical expert (n=1), researchers (n=3), OTs (n=3), older adults (n=3), and caregivers (n=3), who provided information on the usability of the e-DSS. RESULTS: Overall, 4 themes served as the criteria for the prototype of the electronic Algo (Hygiene 2.0 [H2.0]): focus (safety, confidentiality, well-being, and autonomy), engage, facilitate (simplify, clarify, and illustrate), and access. For example, users first pay attention to the images (engage and illustrate) that can be used to depict safe postures (safety), illustrate questions embedded in the decision support tool (clarify and illustrate), and demonstrate the context of the use of assistive technology (safety and clarify). CONCLUSIONS: The user-centered design of H2.0 allowed the cocreation of an e-DSS in the form of a website, in line with the needs of community-dwelling older adults and their caregivers seeking bathroom-assistive technology that enables personal hygiene. Each iteration improved usability and brought more insight into the users' realities, tailoring the e-DSS to the implementation context.

Impact of Changes in Playing Time on Playing-Related Musculoskeletal Pain in String Music Students.

BACKGROUND: During their training, musicians must develop good work habits that they will carry on throughout their professional career in order to avoid potential chronic health problems, such as musculoskeletal pain. The effect of sudden changes in instrument playing-time on the development of playing-related musculoskeletal pain (PRMP) has not been thoroughly investigated in music students playing bowed string instruments (BSI), even though they are regularly exposed to such changes to perfect their playing skills. OBJECTIVE: To explore the association between sudden changes in instrument playing-time and changes in PRMP in BSI players. METHODS: A prospective cohort study was completed with BSI students attending a summer music camp offering high-level training. Participants completed a self-administered 23-item questionnaire designed for the study upon arrival at camp (T1) and then 7 days later (T2). RESULTS: Ninety-three BSI students (16±4 yrs old) completed the questionnaires, for a 23% response rate. Their playing-time increased by 23±14 hrs between T1 and T2. Complaints in pain frequency (e.g., from never to most of the time) and intensity (19±24 mm on VAS) significantly increased between T1 and T2 and were correlated with an increase in playing-time. CONCLUSION: A sudden increase in playing-time, such as that experienced by elite BSI students attending an intensive music camp, was related to an increase in PRMP. However, in this study, changes in pain characteristics were only partly explained by the change in playing-time.

Algo Used by Homecare Nonoccupational Therapists Selecting Bathing Assistive Technology: Enhancing Standardization by Exploring Clinical Reasoning.

Algo is a clinical decision algorithm developed to support nonoccupational therapists in establishing assistive technology recommendations to enable physically disabled adults to perform their hygiene at home. This study aimed to explore the in-depth clinical reasoning of nonoccupational therapists using Algo to pinpoint the items leading to disagreements regarding recommendations. A multiple-case study was conducted with eight nonoccupational therapists trained to use Algo and filmed while using it with six standardized clients. Explicitation interviews were conducted for the conflicting recommendations. Identifying the key reasoning skills to develop in Algo users has led to three recommendations to enhance standardization with seniors.

Exponential increases in the prevalence of disability in the oldest old: a Canadian national survey.

BACKGROUND: As most studies generally treat all 85+ year-olds as a homogeneous group, little is known about the specific disabilities of the oldest old population, those aged 90 and older. OBJECTIVE: To estimate age-specific prevalence of disability in activities of daily living for older Canadians, including the oldest old, those aged 90 and older. METHODS: Cross-sectional national survey with a representative sample of noninstitutionalized Canadians aged between 50 and 104 years old (n = 28,406). Disability was self-reported and defined as needing assistance to perform self-care and domestic life activities. RESULTS: The prevalence of disability increased with age, and the rise appeared exponential when considering the oldest old. At age 90, the highest estimated rates of disability were reported for housekeeping (50%), shopping (45%) and transportation (44%), and 21% reported requiring assistance for washing themselves. Compared to the 85-89 age group, the estimated proportion of people reporting disability in the 95+ age group approximately triples for self-care activities and doubles for domestic life activities. CONCLUSION: Even if we knew that disability increases with age, we can now state that it increases at an accelerated rate beyond age 85. Grouping people aged 85+ into one category leads to substantial underestimates of disability in the oldest old. Accurate estimates are necessary for adequate allocation of care and rehabilitation resources for a rapidly expanding age group.

Can home health aids using the clinical algorithm Algo choose the right bath seat for clients having a straightforward problem?

OBJECTIVE: To determine if Algo, a clinical algorithm to select bathing equipment for 'straightforward' cases, guides home health aides in selecting the appropriate bath seat. DESIGN: Criterion validity study. SETTING: Community home care. SUBJECTS: Eight home health aides used Algo with community-dwelling older adults having a straightforward problem. MAIN MEASURES: Their bath-seat recommendations were compared with those proposed by an occupational therapist (OT), which were considered as the gold standard. In order to determine a clinically acceptable threshold of agreement between the recommendations, a subgroup of community-dwelling elderly people was assessed a third time by another OT. RESULTS: Half of the clients (74/143) for whom bathroom assessments were requested qualified as potentially straightforward cases after triage and were visited at home by a home health aide using Algo. In 84% of cases (95% confidence interval (CI) = [75, 93]), the non-OTs using Algo identified a seat that would enable these older adults to bathe according to their preferences, abilities and environment, as confirmed by the gold standard OT. Moreover, this appropriateness rate did not statistically differ from that obtained when comparing another OT to the gold standard. CONCLUSION: Algo guides non-OTs toward a bath seat that meets the needs of community-dwelling older adults in the majority of cases.

[Orientations de facilitation pour soutenir l'application de l'Algo dans les services de soutien à domicile des personnes aînées].

Comment soutenir le déploiement de connaissances coconstruites par des personnes cliniciennes, gestionnaires ou chercheures? Ce thème est abordé à partir de l'étude de l'application de l'Algo, un algorithme clinique décisionnel conçu pour la sélection des aides techniques visant à faciliter l'hygiène corporelle des personnes aînées vivant à domicile. L'objectif de cette note sur les politiques et les pratiques est de présenter les orientations de facilitation dégagées à la suite d'un devis mixte multiphases (2015-2019) mis en œuvre dans les services de soutien à domicile au Québec (Canada). Les orientations de facilitation centrée sur la tâche et holistique sont présentées en fonction des stades d'utilisation de l'Algo, afin de soutenir les personnes cliniciennes, gestionnaires et chercheures dans la poursuite de son application auprès des personnes aînées. De plus, cette note illustre l'apport des devis mixtes à la conduite et à la compréhension de l'application des connaissances coconstruites.

Biomechanical Demands and User Preference Associated with Wall-Mounted and Rim-Mounted Grab Bars.

Background. Grab bars are used to support bathing tasks. Sometimes, temporary rim-mounted grab bars may be preferred over permanent wall-mounted grab bars. Purpose. We compared postural requirements, applied loads, and user perceptions between two configurations of rim-mounted grab bars, a vertical wall-mounted grab bar, and a no-grab bar condition. Method. Ten adults entered and exited a simulated bathing environment. Trunk flexion was evaluated via 3D kinematics, while load cells mounted to the grab bars facilitated the evaluation of applied loads. Participants rated each condition on perceived safety, comfort, effectiveness, and ease of use. Findings. Rim-mounted grab bars resulted in greater trunk flexion and greater applied loads and were less favorably perceived. Implications. The rim-mounted grab bars included in this study may induce challenging postural demands and loading scenarios, and occupational therapists should consider whether they meet the needs of their clients.

[Mapping in 3D with MapIt: an added value for a professionalization path from the student perspective]. / Cartographier en 3D avec MapIt : une plus-value pour un parcours de professionnalisation selon la perspective étudiante.

During the pandemic, the MapIt app was integrated into an occupational therapy program to support remote learning of built environment adaptation. MapIt maps rooms in a home, then generates a 3D model for viewing and taking virtual measurements. The students express that the use of MapIt during their training leads to embodying the roles expected of an occupational therapist. To inspire other good pedagogical ideas, this article presents how MapIt can support learning in authentic situations, a key element of a professionalization path, approaching the realities experienced by patients, clients, or caregivers.

[Issues surrounding the participation of auxiliary personnel in occupational therapy]. / Enjeux entourant la participation du personnel auxiliaire aux services d'ergothérapie.

BACKGROUND: With the current scarcity of occupational therapists, the idea of resorting to the use of support personnel in occupational therapy does not have consensus. In fact, occupational therapists are faced with service delivery options for which they are ill-informed. OBJECTIVE: To provide a synthesis of the Canadian and Quebec perspectives pertaining to the possibility for "skill mix" that is to say the participation of support personnel in occupational therapy, and to discuss ways in which they can participate. KEY ISSUES: "Skill mix" would allow an occupational therapist to delegate certain clinical activities to support personnel, so as to assert the full potential of occupational therapy. The Canadian Association of Occupational Therapists and l'Ordre des ergothérapeutes du Quebec recognize the contribution of support personnel and offer markers for the implementation of practices utilizing their services. IMPLICATIONS: This paper offers a critical reflection on this topic that is in need of further study.

Algo's Integrated Knowledge Translation Process in Homecare Services: A Cross-Sectional Correlational Study for Identifying its Level of Utilization and its Associated Characteristics.

Background. Algo is an integrated knowledge translation (IKT)-based algorithm for supporting occupational therapists (OTs) with skill mix for selecting bathing equipment. While IKT approaches are increasingly valued in implementation science, their benefits with respect to the utilization of knowledge in clinical settings are scarcely documented. Purpose. To identify Algo's level of utilization and the characteristics associated with its level of utilization. Method. A cross-sectional correlational study was conducted with OTs working in homecare services (HCS) through an online survey based on Knott and Wildavsky's classification and the Promoting Action on Research Implementation in Health Services (PARIHS) framework. Findings. Almost half (48%) of the OTs surveyed (n = 125; participation rate: 16%) reached one of the seven levels of utilization. While Evidence characteristics are perceived as facilitators to its utilization, Context statements indicate an unfavorable organizational climate to the implementation of change. Implications. Strategies should target additional stakeholders (e.g., HCS managers) and organizational adjustments in HCS to sustain Algo's utilization.

Older adults' use of an online decision support system: Usability and stability of assistive technology recommendations.

Online decision support systems (DSS) may help older adults self-select assistive technology (AT) by offering recommendations. User interactions with DSSs may change the recommendations they receive. OBJECTIVE: We evaluated recommendations stability and usability of an online DSS. METHODS: Middle-aged and older adults (n = 43) were observed while using the DSS. The stability of DSS recommendations (ATs and advice) was compared between two time points, using a three-point scale: no, partial, or full agreement. Usability was coded, referencing ISO standards. RESULTS: Half (51%) of participants received AT recommendations from the DSS in both sessions, with full (14%) or partial (12%) agreement. All but one participant received advice, and almost all of them had full (40%) or partial (56%) agreement between sessions. Many of the usability issues appear to be the result of the users inaccurately measuring their environment, challenges in understanding the questions being asked, and improperly making selections from the system. DISCUSSION: Strict AT matching rules versus generic advice, and usability issues, likely reduced the matching rate and stability of AT recommendations. CONCLUSION: It appears that some users may require assistance with the system, and we suggest changes to the DSS format and content to improve stability and usability.

Mobile Videoconferencing for Occupational Therapists' Assessments of Patients' Home Environments Prior to Hospital Discharge: Mixed Methods Feasibility and Comparative Study.

BACKGROUND: Occupational therapists who work in hospitals need to assess patients' home environment in preparation for hospital discharge in order to provide recommendations (eg, technical aids) to support their independence and safety. Home visits increase performance in everyday activities and decrease the risk of falls; however, in some countries, home visits are rarely made prior to hospital discharge due to the cost and time involved. In most cases, occupational therapists rely on an interview with the patient or a caregiver to assess the home. The use of videoconferencing to assess patients' home environments could be an innovative solution to allow better and more appropriate recommendations. OBJECTIVE: The aim of this study was (1) to explore the added value of using mobile videoconferencing compared with standard procedure only and (2) to document the clinical feasibility of using mobile videoconferencing to assess patients' home environments. METHODS: Occupational therapists assessed home environments using, first, the standard procedure (interview), and then, videoconferencing (with the help of a family caregiver located in patients' homes, using an electronic tablet). We used a concurrent mixed methods design. The occupational therapist's responsiveness to telehealth, time spent on assessment, patient's occupational performance and satisfaction, and major events influencing the variables were collected as quantitative data. The perceptions of occupational therapists and family caregivers regarding the added value of using this method and the nature of changes made to recommendations as a result of the videoconference (if any) were collected as qualitative data, using questionnaires and semistructured interviews. RESULTS: Eight triads (6 occupational therapists, 8 patients, and 8 caregivers) participated. The use of mobile videoconferencing generally led occupational therapists to modify the initial intervention plan (produced after the standard interview). Occupational therapists and caregivers perceived benefits in using mobile videoconferencing (eg, the ability to provide real-time comments or feedback), and they also perceived disadvantages (eg, videoconferencing requires additional time and greater availability of caregivers). Some occupational therapists believed that mobile videoconferencing added value to assessments, while others did not. CONCLUSIONS: The use of mobile videoconferencing in the context of hospital discharge planning has raised questions of clinical feasibility. Although mobile videoconferencing provides multiple benefits to hospital discharge, including more appropriate occupational therapist recommendations, time constraints made it more difficult to perceive the added value. However, with smartphone use, interdisciplinary team involvement, and patient participation in the videoconference visit, mobile videoconferencing can become an asset to hospital discharge planning. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.2196/11674.

Lessons on integrated knowledge translation through algorithm's utilization in homecare services: a multiple case study.

AIM: Integrated knowledge translation (IKT) is an increasingly recommended collaborative approach to minimize knowledge translation gap. Still, few studies have documented the impact of IKT to optimize knowledge uptake in healthcare settings. An IKT-based clinical algorithm (Algo) was deployed in Quebec (Canada) homecare services to support skill mix for selecting bathing equipment for community-dwelling adults. The objective of this study was to document the characteristics related to Algo's IKT process. METHODS: A multiple-case study with a nested concurrent mixed design was conducted in provincial homecare services. Based on Knott and Wildavsky's seven-stage classification and the integrated-Promoting Action on Research Implementation in Health Services model, Innovation, Recipients, and Context, characteristics related to Algo's levels of utilization were documented. Quantitative (electronic questionnaire) and qualitative (semistructured interviews and focus groups) data were collected for each case (i.e., homecare service). Descriptive statistics and thematic analysis were performed to describe each case through a mixed methods matrix, for intra/intercase analyses. RESULTS: Knowledge translation characteristics of five Algo's levels of utilization were documented: reception, cognition, reference, effort, and impact. Innovation characteristics (e.g., underlying knowledge) were found to facilitate its dissemination and its use. However, the Recipients (e.g., unclear mechanisms to implement change) and Context (e.g., organizational mandates nonaligned with skill mix) characteristics hampered its application through intermediate and advanced levels of utilization. CONCLUSION: The knowledge translation analysis of Algo allowed for documenting the IKT-based benefits in terms of utilization in healthcare settings. Although an IKT approach appears to be a strong facilitator for initiating the implementation process, additional characteristics should be considered for promoting and sustaining its use on local, organizational, and external levels of context. Facilitation strategies should document the administrative benefits related to Algo's utilization and contextualize it according to homecare services' characteristics.

Adapting a Person's Home in 3D Using a Mobile App (MapIt): Participatory Design Framework Investigating the App's Acceptability.

BACKGROUND: Home adaptation processes enhancing occupational engagement rely on identifying environmental barriers, generally during time-consuming home visits performed by occupational therapists (OTs). Relevance of a 3D model to the OT's work has been attested, but a convenient and consumer-available technology to map the home environment in 3D is currently lacking. For instance, such a technology would support the exploration of home adaptations for a person with disability, with or without an OT visit. OBJECTIVE: The aim of this study was to document the development and acceptability of a 3D mapping eHealth technology, optimizing its contribution to the OT's work when conducting assessments in which home representations are essential to fit a person's needs. METHODS: A user-centered perspective, embedded in a participatory design framework where users are considered as research partners (not as just study participants), is reported. OTs, engineers, clinicians, researchers, and students, as well as the relatives of older adults contributed by providing ongoing feedback (eg, demonstrations, brainstorming, usability testing, questionnaires, prototyping). System acceptability, as per the Nielsen model, is documented by deductively integrating the data. RESULTS: A total of 24 stakeholders contributed significantly to MapIt technology's co-design over a span of 4 years. Fueled by the objective to enhance MapIt's acceptability, 11 iterations lead to a mobile app to scan a room and produce its 3D model in less than 5 minutes. The app is available for smartphones and paired with computer software. Scanning, visualization, and automatic measurements are done on a smartphone equipped with a motion sensor and a camera with depth perception, and the computer software facilitates visualization, while allowing custom measurement of architectural elements directly on the 3D model. Stakeholders' perception was favorable regarding MapIt's acceptability, testifying to its usefulness (ie, usability and utility). Residual usability issues as well as concerns about accessibility and scan rendering still need to be addressed to foster its integration to a clinical context. CONCLUSIONS: MapIt allows to scan a room quickly and simply, providing a 3D model from images taken in real-world settings and to remotely but jointly explore home adaptations to enhance a person's occupational engagement.

Usability of a Co-designed eHealth Prototype for Caregivers: Combination Study of Three Frameworks.

BACKGROUND: Co-design (or the participation of users) has shown great potential in the eHealth domain, demonstrating positive results. Nevertheless, the co-design approach cannot guarantee the usability of the system designed, and usability assessment is a complex analysis to perform, as evaluation criteria will differ depending on the usability framework (or set of criteria) used. ISO (International Organization for Standardization) on usability (ISO 9241-210), Nielsen heuristic, and Garrett element of user experience inform different yet complementary aspects of usability. OBJECTIVE: This study aims to assess the usability and user experience of a co-design prototype by combining 3 complementary frameworks. METHODS: To help caregivers provide care for functionally impaired older people, an eHealth tool was co-designed with caregivers, health and social service professionals, and community workers assisting caregivers. The prototype was a website that aims to support the help-seeking process for caregivers (finding resources) and allow service providers to advertise their services (offering resources). We chose an exploratory study method to assess usability in terms of each objective. The first step was to assess users' first impressions of the website. The second was a task scenario with a think-aloud protocol. The final step was a semistructured interview. All steps were performed individually (with a moderator) in a single session. The data were analyzed using 3 frameworks. RESULTS: A total of 10 participants were recruited, 5 for each objective of the website. We were able to identify several usability problems, most of which were located in the information design and interface design dimensions (Garrett framework). Problems in both dimensions were mainly coded as effectiveness and efficiency (ISO framework) and error prevention and match between the systemand the real world (Nielsen heuristic). CONCLUSIONS: Our study provided a novel contribution about usability analysis by combining the 3 different models to classify the problems found. This combination provided a holistic understanding of the usability improvements needed. It can also be used to analyze other eHealth products. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.2196/11634.

Force applied to a grab bar during bathtub transfers.

BACKGROUND: Grab bars are a common fall prevention strategy in the bathroom, but biomechanical data are lacking to support clinicians' interventions. This study aims to determine the magnitude and duration of the force applied to four grab bar configurations during complete bathtub transfers on a potentially slippery surface. METHODS: A three factorial repeated measures design was used in an experimental environment including a bathtub, padded walls, instrumented fixed grab bars and a safety harness. Seven healthy young adults stepped into the bathtub, sat down at the bottom, stood up and stepped out (three trials), with or without a slippery surface, grabbing onto four grab bar configurations (vertical, angled, horizontal low, horizontal high). Maximum force magnitudes and durations during bathtub transfers were measured by two 6-degrees of freedom load cells. FINDINGS: On average, 23.2 ± 6.4% of body weight was applied on the grab bar during complete bathtub transfers. Maximum resultant forces were not influenced by grab bar configuration, presence of a slippery surface, or direction of bathtub transfer (entrance or exit), except for the vertical configuration without a slippery surface where the maximum resultant force was smaller than for the three other configurations. Transferring on a slippery surface increased the time participants applied force on the grab bars. INTERPRETATION: Grab bars used during complete bathtub transfers with no loss of balance should be capable of sustaining a minimum of 23.2% of body weight, to which a factor of safety of 1.5 should be added, regardless of the grab bar configuration.

Criterion validity of a home health aide's algorithm for recommending bathroom equipment.

BACKGROUND: Occupational therapists are experts at adapting bathroom environments. However, to increase access to services, the algorithm "Préalables aux soins d'hygiène" (French for "Prerequisites for bathing care") has been developed to be used by trained home health aides to recommend bathroom equipment. PURPOSE: The purpose of this study was to assess the criterion validity of the algorithm by measuring the level of agreement between an occupational therapist's recommendations (gold standard) and those made by four home health aides using the algorithm. METHODS: Community-living adults with bathing difficulties (n = 96) were visited by both types of evaluators. FINDINGS: Home health aides correctly identified clinical situations in which they should feel confident about their ability (sensitivity: 96%, specificity: 69%) and, apart from type of bathing seat (K(W) = 0.63 [0.52; 0.75]), agreement between recommendations varied from substantial to almost perfect (delta > or = 0.72). IMPLICATIONS: Results increase confidence in the algorithm, but other studies are needed to ensure population safety and fulfil the occupational therapist's obligations.