scholarly journals An Exploratory Factor Analysis of Sensor-Based Physical Capability Assessment

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2227 ◽  
Author(s):  
Alice Coni ◽  
Sabato Mellone ◽  
Marco Colpo ◽  
Jack M. Guralnik ◽  
Kushang V. Patel ◽  
...  

Physical capability (PC) is conventionally evaluated through performance-based clinical assessments. We aimed to transform a battery of sensor-based functional tests into a clinically applicable assessment tool. We used Exploratory Factor Analysis (EFA) to uncover the underlying latent structure within sensor-based measures obtained in a population-based study. Three hundred four community-dwelling older adults (163 females, 80.9 ± 6.4 years), underwent three functional tests (Quiet Stand, QS, 7-meter Walk, 7MW and Chair Stand, CST) wearing a smartphone at the lower back. Instrumented tests provided 73 sensor-based measures, out of which EFA identified a fifteen-factor model. A priori knowledge and the associations with health-related measures supported the functional interpretation and construct validity analysis of the factors, and provided the basis for developing a conceptual model of PC. For example, the “Walking Impairment” domain obtained from the 7MW test was significantly associated with measures of leg muscle power, gait speed, and overall lower extremity function. To the best of our knowledge, this is the first time that a battery of functional tests, instrumented through a smartphone, is used for outlining a sensor-based conceptual model, which could be suitable for assessing PC in older adults and tracking its changes over time.

2021 ◽  
pp. 108482232110304
Author(s):  
Grace F. Wittenberg ◽  
Michelle A. McKay ◽  
Melissa O’Connor

Two-thirds of older adults have multimorbidity (MM), or co-occurrence of two or more medical conditions. Mild cognitive impairment (CI) is found in almost 20% of older adults and can lead to further cognitive decline and increased mortality. Older adults with MM are the primary users of home health care services and are at high risk for CI development; however, there is no validated cognitive screening tool used to assess the level of CI in home health users. Given the prevalence of MM and CI in the home health setting, we conducted a review of the literature to understand this association. Due to the absence of literature on CI in home health users, the review focused on the association of MM and CI in community-dwelling older adults. Search terms included home health, older adults, cognitive impairment, and multimorbidity and were applied to the databases PubMed, CINAHL, and PsychInfo leading to eight studies eligible for review. Results show CI is associated with MM in older adults of increasing age, among minorities, and in older adults with lower levels of education. Heart disease was the most prevalent disease associated with increased CI. Sleep disorders, hypertension, arthritis, and hyperlipidemia were also significantly associated with increased CI. The presence of MM and CI was associated with increased risk for death among older adults. Further research and attention are needed regarding the use and development of a validated cognitive assessment tool for home health users to decrease adverse outcomes in the older adult population.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 108-108
Author(s):  
Tommy Buckley ◽  
Kyeongmo Kim ◽  
Denise Burnette

Abstract Psychological sense of community is a concept used to describe how individuals feel about their community. The Brief Sense of Community Scale (BSCS) is an 8-item scale that includes these four domains: membership, needs fulfillment, emotional connection, and influence. It has been used in various contexts and was validated with young adults in Puerto Rico. The purpose of this study was to validate the BSCS for use with Spanish-speaking older adults in Puerto Rico. We conducted face-to-face interviews with a non-probability sample of 154 community- dwelling adults aged 60+ in Puerto Rico. BSCS is comprised of a 5-point likert-type scale with score values ranging from 0 (strongly agree) to 4 (strongly disagree) (total score range 0-32, mean= 24.75, SD= 6.04), and it showed good reliability in our sample (a=.85) and acceptable subscale reliability (membership, a=.85; needs fulfillment, a=.85; influence, a=.66; and emotional connection, a=.69). Five competing factor structures were tested based on prior research using confirmatory factor analysis (CFA). The CFA indicated that a four factor structure from the original scale was the best fit (χ² (16) =25.9; p=.06; RMSEA=.06; CFI=.98; TLI=.97; SRMR=.04). The BSCS showed significant correlations in the expected direction with quality of life (r=.41), social isolation (r=.34), loneliness (r=.27) and self-rated health (r=.17). We conclude that the BSCS is a valid and reliable scale for measuring psychological sense of community with community-dwelling Spanish-speaking older adults in Puerto Rico. Future research should confirm and extend our findings with other Spanish-speaking older adult populations.


Author(s):  
Hyeona So ◽  
Dahyun Park ◽  
Mi-Kyung Choi ◽  
Young-Sun Kim ◽  
Min-Jeong Shin ◽  
...  

Food literacy refers to the knowledge, skills, and attitudes required for individuals to choose foods that promote health. As the rate of diet-related diseases increases, food literacy is becoming more important. However, there are no tools available to evaluate food literacy among the Korean elderly. We derived 547 questions from a literature review and, after three rounds of Delphi surveys, selected 33 preliminary questions. We calculated the content validity ratio of the questions and applied a face validity procedure. We then selected 32 questions, assessed their validity, and distributed them as a questionnaire to 205 elderly people. We then conducted exploratory factor analysis (EFA) to determine the validity of the questionnaire and used an internal consistency index (Cronbach’s α coefficient) to determine reliability. Based on the factor analysis, 13 questions were selected, distributed among three factors, and evaluated using the Kaiser–Meyer–Olkin (KMO) and Bartlett sphericity tests. The factor analysis showed that KMO was 0.872, which is a highly acceptable score, and the Bartlett sphericity test was χ2 = 1,374.69 at p = 0.00. The food literacy questionnaire developed in this study will likely be helpful for improving the healthcare of elderly people.


2017 ◽  
Vol 7 (1) ◽  
pp. 65 ◽  
Author(s):  
Max Well Elias Gonçalves ◽  
Mauro Caetano

Purpose: This study proposes a conceptual model of level of service evaluation to a small-sized airport with a focus on departing passengers.Design/Methodology: The variables selected to compose the model were chosen according to their adequacy to departing passengers and the airport’s characteristics. A survey was conducted, and, posteriorly, exploratory factor analysis was used in order to verify the adequacy of the conceptual model proposed and also to improve it according to the results obtained.Findings: The results show that the level of service of the airport is composed of three dimensions: airport characteristics, passenger processing, and prices. The relative importance of the dimensions according to their contribution to the composition of the airport’s overall level of service was also determined.Originality/value: The paper combines theoretical and practical findings in a model for level of service evaluation to a small-sized airport from an air transportation management perspective.


2016 ◽  
Vol 8 (4) ◽  
pp. 19
Author(s):  
Alexander Ngozi Ifezue ◽  
Njoku Ola Ama ◽  
K. K. Moseki

This paper analysed the resistance to innovation of a stratified sample of 279 staff members of the University of Botswana with the view to determine those factors that act as roadblocks, institutional barriers and boosters to innovation use in the university. Using an exploratory factor analysis (EFA) and multivariate binary logistic regression techniques, lack of innovation, perceived risks and institutional environment were identified as roadblocks/barriers to innovation use by the older adults (50 years and over). Access to computer and years of internet experience significantly, positively affected innovation use (p < 0.05, B>0). Training and motivation were also identified as factors that act as boosters to innovation use. The paper recommends for the designing of intensive training programme for the older adults that is age-specific and which takes into consideration the existing skills in order to motivate them to use the innovations.


2014 ◽  
Vol 68 (6) ◽  
pp. 711 ◽  
Author(s):  
Machiko R. Tomita ◽  
Sumandeep Saharan ◽  
Sheela Rajendran ◽  
Susan M. Nochajski ◽  
Jo A. Schweitzer

2012 ◽  
Vol 36 (4) ◽  
pp. 600-616 ◽  
Author(s):  
L. A. Gerolimatos ◽  
C. E. Gould ◽  
B. A. Edelstein

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 789-789
Author(s):  
Mariana Wingood ◽  
Salene Jones ◽  
Nancy Gell ◽  
Denise Peters ◽  
Jennifer Brach

Abstract Addressing physical activity (PA) barriers is an essential component of increasing PA among the 56-73% of community-dwelling adults 50 years and older who are not performing the recommended 150 minutes of moderate-to-vigorous PA. As there is no feasible, multi-factorial tool to assess PA barriers among this population, we developed and validated a PA barrier assessment tool called the Inventory of Physical Activity Barriers (IPAB). We collected cross-sectional data on 503 adults (mean age 70.1), with 79 participants completing the scale twice for test-retest reliability and 64 completing a cross-over design examining the ability to use two administration formats interchangeably. Our analyses consisted of exploratory and confirmatory factor analysis, Cronbach alpha, intraclass correlation coefficient, Bland-Altman Plot, and t-tests. Using factor analysis, we identified and confirmed an eight-factor solution consisting of 27 items. The 27-item IPAB is internally consistent (alpha= 0.91), has a high test-retest reliability (intraclass correlation coefficient=0.99), and can differentiate between individuals who meet the recommended levels of PA and those who do not (p &lt; 0.001). The IPAB scores ranged between 1.00-3.11 for the paper format (mean=1.78) and 1.07-3.48 for the electronic format (mean=1.78), with no statistical difference between the paper and electronic administration formats (p=0.94), resulting in the conclusion that the two administration formats can be used interchangeably. Participant feedback illustrates that the IPAB is easy to use, has clear instruction, and is an appropriate length. The newly validated IPAB scale can be used to develop individualized PA interventions that address PA barriers among patients 50 years and older.


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