Assessment of pediatric shoulder range of motion and loading response to evaluate the biofidelity of the Large Omni-directional Child (LODC) anthropomorphic test device (ATD) shoulder design.

The shoulder girdle complex, through engagement with the seat belt, influences motor vehicle occupant upper body movement during frontal impacts, affecting the movement of the head and spine. The recently developed Large Omni-directional Child (LODC) anthropomorphic test device (ATD) was designed with flexible shoulder girdle structures that capture the unique kinematics in pediatric occupants. However, the LODC shoulder has not been evaluated for biofidelity due to the lack of biomechanical data available on pediatric shoulder responses. This study evaluated quasi-static pediatric shoulder girdle complex responses through non-invasive displacement measurements. These data were obtained to evaluate, and, if necessary, improve the biofidelity of the LODC ATD. Shoulder range of motion and anthropometric measurements were obtained from 25 pediatric volunteers, ages 8-12 years old. Loads were applied bilaterally exclusively to the shoulder complexes in increments of 25 N up to 150 N per shoulder at 90 and 135 degrees of shoulder flexion. Still photos were used to determine shoulder displacement in the sagittal plane from images captured prior to and following the load applications. Data analysis consisted of motion tracking to evaluate the absolute and relative displacement of the right acromion and T1. The displacements for each volunteer were normalized based on the volunteer's shoulder width compared to the shoulder width of the LODC ATD. For the 90° load, the acromion moved relative to T1 an average of 28.1 mm forward and 3.1 mm downward at maximum displacement. For the 135° load, the acromion moved relative to T1 an average of 15.5 mm forward and 42.7 mm upward at maximum displacement. Similar displacements at higher loads indicated that the volunteers achieved their maximum range of motion. The results of this study will be compared to the LODC ATD, assessing the biofidelity of the shoulder complex.

Long-Term Follow-Up of a Lifestyle Intervention for Late-Midlife, Rural-Dwelling Latinos in Primary Care.

IMPORTANCE: Rural-dwelling Latinos are an underresourced population in need of accessible and effective wellness programs. OBJECTIVE: To evaluate patients' long-term health-related outcomes after lifestyle intervention. DESIGN: An uncontrolled pilot trial assessing change in health from pretreatment to long-term follow-up (12 mo after intervention completion, no contact) and from posttreatment to long-term follow-up. SETTING: Rural, community-based primary care. PARTICIPANTS: Latino and Hispanic safety-net primary care patients, ages 50 to 64 yr. INTERVENTION: A culturally tailored, 4-mo lifestyle intervention co-led by occupational therapy practitioners and Latino community health workers that features telehealth and in-home sessions covering topics such as healthy eating and navigating health care. OUTCOMES AND MEASURES: Self-reported and physiological outcomes: symptom-well-being (primary), stress, sleep disturbance, social satisfaction, physical activity, patient activation, blood pressure, and weight. Exit interviews addressed health experiences and intervention impact on participants' lives. RESULTS: Participants (N = 27) demonstrated clinically significant pretreatment to long-term follow-up benefits in all symptom-well-being dimensions (Cohen's d ≥ 0.8, p ≤ .004), with additional gains from posttreatment to long-term follow-up (d ≥ 0.4, p ≤ .05). Significant improvements from pre- to posttreatment in systolic blood pressure, stress, and social role and activity satisfaction were maintained at long-term follow-up. No changes were observed in weight, physical activity, or diastolic blood pressure. Participants described the intervention's sustained positive effect on their wellness. CONCLUSIONS AND RELEVANCE: A lifestyle intervention led by occupational therapy practitioners and community health workers in a primary care context has potential to achieve long-term health benefits in rural-dwelling, late-midlife Latinos. WHAT THIS ARTICLE ADDS: This study reveals that rural, late-midlife Latinos showed long-lasting improvements in psychological and physical health after finishing a program that helped them make healthy lifestyle choices. This finding supports the unique contribution of occupational therapy in primary care settings.

A Pilot Study of the ¡Vivir Mi Vida! Lifestyle Intervention for Rural-Dwelling, Late-Midlife Latinos: Study Design and Protocol.

Older, rural-dwelling Latinos face multiple health disparities. We describe the protocol of a pilot study of a community health worker-occupational therapist-led lifestyle program, ¡Vivir Mi Vida! ( ¡VMV!), designed for delivery in primary care and adapted for late-midlife, Latino rural-living patients. Using mixed methods, we collected feasibility, acceptability, and preliminary efficacy data on ¡VMV!. Forty 50- to 64-year-old Latinos participated in a 16-week lifestyle intervention led by a community health worker-occupational therapist team. We conducted pre- and post-intervention assessments to evaluate the efficacy of ¡VMV! in improving psychosocial and clinical health outcomes. Focus groups and interviews were held post-intervention with participants and key stakeholders to assess feasibility and acceptability. This is the first trial designed to evaluate a lifestyle intervention that includes collaboration between occupational therapists and community health workers within primary care. The detailed description of methodology promotes research transparency and reproducibility of a community health worker-occupational therapist-led lifestyle intervention.

Contextualizing the Positive Effects of the Well Elderly 2 Trial: A Response to Schelly and Ohl (2019).

IMPORTANCE: A recent reanalysis of data from the Well Elderly (WE) 2 study purportedly indicated that the intervention did not achieve clinically meaningful or statistically significant effects; this article addresses these criticisms. OBJECTIVE: To contextualize the WE 2 study as targeting a nonclinical population and demonstrate that the intervention produced substantively important, statistically significant effects. DESIGN: Secondary analysis of WE 2 intervention-based pre-post change scores. SETTING: The original trial occurred primarily in senior centers and senior housing facilities in greater Los Angeles. PARTICIPANTS: Independent-living older adults (N = 324) who were assessed before and after intervention. INTERVENTION: The WE intervention, a version of the Lifestyle Redesign® (LR) approach, was administered by occupational therapists over 6 mo by means of group and individual sessions. OUTCOMES AND MEASURES: The 36-item Short Form Health Survey, the Life Satisfaction Index-Z, and the Center for Epidemiologic Studies Depression Scale. RESULTS: The WE intervention was associated with statistically significant improvement on 10 of 12 outcome variables that were examined. CONCLUSIONS AND RELEVANCE: Because the WE intervention was hypothesized to reduce age-related decline and followed a population-oriented approach, the expectation that average results would be clinically meaningful was inappropriate. The intervention produced positive effects across a wide array of outcome domains. In settings in which clinical meaningfulness is an appropriate index of intervention outcomes, evidence suggests that LR produces effects that are clinically meaningful. As an evidence-based intervention, LR should be considered useful both in population-oriented contexts and in addressing discrete health conditions. WHAT THIS ARTICLE ADDS: Valid analyses demonstrate that the positive experimental effects of the WE 2 study are, in fact, genuine and cost-effective, and LR in clinically oriented contexts has produced statistically significant, clinically meaningful results. Clearly and accurately representing the evidence base of occupational therapy in prevention and chronic care is of critical importance to advance the field as a whole.

Longitudinal assessment of stability of sensory features in children with autism spectrum disorder or other developmental disabilities.

Prior research on the stability of sensory processing problems in children with autism spectrum disorder (ASD) or other developmental disabilities (DD) has produced inconsistent results. We employed a longitudinal study design to assess the stability of three clinical sensory response patterns: hyporesponsiveness; hyperresponsiveness; and sensory interests, repetitions, and seeking behaviors (SIRS). Parents of children with ASD (n = 55) or DD (n = 35) responded to sensory questionnaires at two time points (T1 and T2) separated by 3.3 years on average, with the children aged 2-12 years (M = 5.69 ± 2.46) at the first assessment. For each sensory response pattern, regression analysis revealed that, for both ASD and DD groups, scores at T1 were strong predictors of scores at T2. Over the longitudinal assessment interval, there was a significant mean decline in severity for SIRS in both groups and for hyporesponsiveness in the ASD group. Parental estimates of the amount of therapy services received were positively associated with the severity of sensory features at T2, an outcome that may result from increased intervention dosages being administered to children who fail to improve over time. The results are discussed in terms of person-centered and environmental considerations, which, in combination, have the capacity to affect stability outcomes for sensory features. Autism Research 2019, 12: 100-111. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Children with autism spectrum disorder (ASD) and other developmental disabilities (DD) may process sensory information differently from those who do not have ASD. For example, some children may be over-responsive or under-responsive to sound or touch. In this study, we showed that sensory features in preschool/school-aged children with ASD and DD tend to decrease on average over a several year period. However, individual children tend to retain their ranking (low or high in sensory features) in comparison to other children over time.

Evaluation of ¡Vivir Mi Vida! to improve health and wellness of rural-dwelling, late middle-aged Latino adults: results of a feasibility and pilot study of a lifestyle intervention.

AimThe aim of this study was to determine the feasibility and efficacy of a culturally tailored lifestyle intervention, ¡Vivir Mi Vida! (Live My Life!). This intervention was designed to improve the health and well-being of high risk late middle-aged Latino adults and to be implemented in a rural primary care system. BACKGROUND: Rural-dwelling Latino adults experience higher rates of chronic disease compared with their urban counterparts, a disparity exacerbated by limited access to healthcare services. Very few lifestyle interventions exist that are both culturally sensitive and compatible for delivery within a non-metropolitan primary care context. METHODS: Participants were 37 Latino, Spanish-speaking adults aged 50-64-years-old, recruited from a rural health clinic in the Antelope Valley of California. ¡Vivir Mi Vida! was delivered by a community health worker-occupational therapy team over a 16-week period. Subjective health, lifestyle factors, and cardiometabolic measures were collected pre- and post-intervention. Follow-up interviews and focus groups were held to collect information related to the subjective experiences of key stakeholders and participants.FindingsParticipants demonstrated improvements in systolic blood pressure, sodium and saturated fat intake, and numerous patient-centered outcomes ranging from increased well-being to reduced stress. Although participants were extremely satisfied with the program, stakeholders identified a number of implementation challenges. The findings suggest that a tailored lifestyle intervention led by community health workers and occupational therapists is feasible to implement in a primary care setting and can improve health outcomes in rural-dwelling, late middle-aged Latinos.

Implementing trials of complex interventions in community settings: the USC-Rancho Los Amigos pressure ulcer prevention study (PUPS).

BACKGROUND: Randomized trials of complex, non-pharmacologic interventions implemented in home and community settings, such as the University of Southern California (USC)-Rancho Los Amigos National Rehabilitation Center (RLANRC) Pressure Ulcer Prevention Study (PUPS), present unique challenges with respect to (1) participant recruitment and retention, (2) intervention delivery and fidelity, (3) randomization and assessment, and (4) potential inadvertent treatment effects. PURPOSE: We describe the methods employed to address the challenges confronted in implementing PUPS. In this randomized controlled trial, we are assessing the efficacy of a complex, preventive intervention in reducing the incidence of, and costs associated with, the development of medically serious pressure ulcers in people with spinal cord injury. METHODS: Individuals with spinal cord injury recruited from RLANRC were assigned to either a 12-month preventive intervention group or a standard care control group. The primary outcome is the incidence of serious pressure ulcers with secondary endpoints including ulcer-related surgeries, medical treatment costs, and quality of life. These outcomes are assessed at 12 and 24 months after randomization. Additionally, we are studying the mediating mechanisms that account for intervention outcomes. RESULTS: PUPS has been successfully implemented, including recruitment of the target sample size of 170 participants, assurance of the integrity of intervention protocol delivery with an average 90% treatment adherence rate, and enactment of the assessment plan. However, implementation has been replete with challenges. To meet recruitment goals, we instituted a five-pronged approach customized for an underserved, ethnically diverse population. In intervention delivery, we increased staff time to overcome economic and cultural barriers to retention and adherence. To ensure treatment fidelity and replicability, we monitored intervention protocol delivery in accordance with a rigorous plan. Finally, we have overcome unanticipated assessment and design concerns related to (1) determining pressure ulcer incidence/severity, (2) randomization imbalance, and (3) inadvertent potential control group contamination. LIMITATIONS: We have addressed the most daunting challenges encountered in the recruitment, assessment, and intervention phases of PUPS. Some challenges and solutions may not apply to trials conducted in other settings. CONCLUSIONS: Overcoming challenges has required a multifaceted approach incorporating individualization, flexibility, and persistence, as well as the ability to implement needed mid-course corrections.

Predictors of retention among African American and Hispanic older adult research participants in the Well Elderly 2 randomized controlled trial.

The purpose of this study was to document predictors of long-term retention among minority participants in the Well Elderly 2 Study, a randomized controlled trial of a lifestyle intervention for community-dwelling older adults. The primary sample included 149 African American and 92 Hispanic men and women aged 60 to 95 years, recruited at senior activity centers and senior residences. Chi-square and logistic regression procedures were undertaken to examine study-based, psychosocial and health-related predictors of retention at 18 months following study entry. For both African Americans and Hispanics, intervention adherence was the strongest predictor. Retention was also related to high active coping and average (vs. high or low) levels of activity participation among African Americans and high social network strength among Hispanics. The results suggest that improved knowledge of the predictors of retention among minority elders can spawn new retention strategies that can be applied at individual, subgroup, and sample-wide levels.

Effectiveness of a lifestyle intervention in promoting the well-being of independently living older people: results of the Well Elderly 2 Randomised Controlled Trial.

BACKGROUND: Older people are at risk for health decline and loss of independence. Lifestyle interventions offer potential for reducing such negative outcomes. The aim of this study was to determine the effectiveness and cost-effectiveness of a preventive lifestyle-based occupational therapy intervention, administered in a variety of community-based sites, in improving mental and physical well-being and cognitive functioning in ethnically diverse older people. METHODS: A randomised controlled trial was conducted comparing an occupational therapy intervention and a no-treatment control condition over a 6-month experimental phase. Participants included 460 men and women aged 60-95 years (mean age 74.9 ± 7.7 years; 53% <$12000 annual income) recruited from 21 sites in the greater Los Angeles metropolitan area. RESULTS: Intervention participants, relative to untreated controls, showed more favourable change scores on indices of bodily pain, vitality, social functioning, mental health, composite mental functioning, life satisfaction and depressive symptomatology (ps<0.05). The intervention group had a significantly greater increment in quality-adjusted life years (p<0.02), which was achieved cost-effectively (US $41218/UK £24868 per unit). No intervention effect was found for cognitive functioning outcome measures. CONCLUSIONS: A lifestyle-oriented occupational therapy intervention has beneficial effects for ethnically diverse older people recruited from a wide array of community settings. Because the intervention is cost-effective and is applicable on a wide-scale basis, it has the potential to help reduce health decline and promote well-being in older people. Trial Registration clinicaltrials.gov identifier: NCT0078634.

Predictors of computer use in community-dwelling, ethnically diverse older adults.

OBJECTIVE: In this study, we analyzed self-reported computer use, demographic variables, psychosocial variables, and health and well-being variables collected from 460 ethnically diverse, community-dwelling elders to investigate the relationship computer use has with demographics, well-being, and other key psychosocial variables in older adults. BACKGROUND: Although younger elders with more education, those who employ active coping strategies, or those who are low in anxiety levels are thought to use computers at higher rates than do others, previous research has produced mixed or inconclusive results regarding ethnic, gender, and psychological factors or has concentrated on computer-specific psychological factors only (e.g., computer anxiety). Few such studies have employed large sample sizes or have focused on ethnically diverse populations of community-dwelling elders. METHOD: With a large number of overlapping predictors, zero-order analysis alone is poorly equipped to identify variables that are independently associated with computer use. Accordingly, both zero-order and stepwise logistic regression analyses were conducted to determine the correlates of two types of computer use: e-mail and general computer use. RESULTS: Results indicate that younger age, greater level of education, non-Hispanic ethnicity, behaviorally active coping style, general physical health, and role-related emotional health each independently predicted computer usage. CONCLUSION: Study findings highlight differences in computer usage, especially in regard to Hispanic ethnicity and specific health and well-being factors. APPLICATION: Potential applications of this research include future intervention studies, individualized computer-based activity programming, or customizable software and user interface design for older adults responsive to a variety of personal characteristics and capabilities.

The Meaningful Activity Participation Assessment: a measure of engagement in personally valued activities.

The Meaningful Activity Participation Assessment (MAPA), a recently developed 28-item tool designed to measure the meaningfulness of activity, was tested in a sample of 154 older adults. The MAPA evidenced a sufficient level of internal consistency and test-retest reliability and correlated as theoretically predicted with the Life Satisfaction Index-Z, the Satisfaction with Life Scale, the Engagement in Meaningful Activities Survey, the Purpose in Life Test, the Center for Epidemiologic Studies Depression Inventory and the Rand SF-36v2 Health Survey subscales. Zero-order correlations consistently demonstrated meaningful relationships between the MAPA and scales of psychosocial well-being and health-related quality of life. Results from multiple regression analyses further substantiated these findings, as greater meaningful activity participation was associated with better psychological well-being and health-related quality of life. The MAPA appears to be a reliable and valid measure of meaningful activity, incorporating both subjective and objective indicators of activity engagement.

Confronting challenges in intervention research with ethnically diverse older adults: the USC Well Elderly II Trial.

BACKGROUND: Community-dwelling older adults are at risk for declines in physical health, cognition, and psychosocial well-being. However, their enactment of active and health-promoting lifestyles can reduce such declines. PURPOSE: The purpose of this article is to describe the USC Well Elderly II study, a randomized clinical trial designed to test the effectiveness of a healthy lifestyle program for elders, and document how various methodological challenges were addressed during the course of the trial. METHODS: In the study, 460 ethnically diverse elders recruited from a variety of sites in the urban Los Angeles area were enrolled in a randomized experiment involving a crossover design component. Within either the first or second 6-month phase of their study involvement, each elder received a lifestyle intervention designed to improve a variety of aging outcomes. At 4-5 time points over an 18-24 month interval, the research participants were assessed on measures of healthy activity, coping, social support, perceived control, stress-related biomarkers, perceived physical health, psychosocial well-being, and cognitive functioning to test the effectiveness of the intervention and document the process mechanisms responsible for its effects. RESULTS: The study protocol was successfully implemented, including the enrollment of study sites, the recruitment of 460 older adults, administration of the intervention, adherence to the plan for assessment, and establishment of a large computerized data base. LIMITATIONS: Methodological challenges were encountered in the areas of site recruitment, participant recruitment, testing, and intervention delivery. CONCLUSIONS: The completion of clinical trials involving elders from numerous local sites requires careful oversight and anticipation of threats to the study design that stem from: (a) social situations that are particular to specific study sites; and (b) physical, functional, and social challenges pertaining to the elder population.

Cost-effectiveness of preventive occupational therapy for independent-living older adults.

OBJECTIVES: To evaluate the cost-effectiveness of a 9-month preventive occupational therapy (OT) program in the Well-Elderly Study: a randomized trial in independent-living older adults that found significant health, function, and quality of life benefits attributable to preventive OT. DESIGN: A randomized trial. SETTING: Two government-subsidized apartment complexes. PARTICIPANTS: One hundred sixty-three culturally diverse volunteers aged 60 and older. INTERVENTION: An OT group, a social activity group (active control), and a nontreatment group (passive control). MEASUREMENTS: Use of healthcare services was determined by telephone interview during and after the treatment phase. A conversion algorithm was applied to the RAND 36-item Short Form Health Survey to derive a preference-based health-related quality of life index, quality-adjusted life years (QALYs), and the incremental cost-effectiveness ratio for preventive OT relative to the combined control group. RESULTS: Costs for the 9-month OT program averaged $548 per subject. Postintervention healthcare costs were lower for the OT group ($967) than for the active control group ($1,726), the passive control group ($3,334), or a combination of the control groups ($2,593). The quality of life index showed a 4.5% QALY differential (OT vs combined control), P <.001. The cost per QALY estimates for the OT group was $10,666 (95% confidence interval = $6,747-$25,430). For the passive and active control groups, the corresponding costs per QALY were $13,784 and $7,820, respectively. CONCLUSION: In this study, preventive OT demonstrated cost-effectiveness in conjunction with a trend toward decreased medical expenditures.