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Background: In Japan, the number of older adults requiring long-term care insurance (LTCI) is increasing and the cost is becoming a social problem. In these fields, the role of geriatric rehabilitation includes maintaining the physical function and LTCI certification levels. The prevalence of sarcopenia is high among older adults requiring LTCI certification, and there are many opportunities to assess the handgrip strength, walking speed, and muscle mass. This study aimed to identify sarcopenia-related assessments sensitive to transitions in LTCI certification levels and determine cut-off values to predict them. Methods: This prospective cohort study analyzed 98 daycare users (mean age ± standard error: 78.5 ± 0.8 years) between March 2019 and 2023. The participants received LTCI certification before the study, and their levels were renewed between baseline and follow-up (six months later). The measurements included handgrip strength, usual walking speed, body composition, and SARC-F score. Participants were classified into maintenance, deterioration, and improvement groups according to the changes in their LTCI certification levels. We identified factors contributing to the deterioration of LTCI certification levels using baseline and before and after comparisons, multivariate analyses, and receiver operating characteristic analyses. Results: No significant differences were observed in the baseline data among the groups. Only the deterioration group showed significant changes in the usual walking speed (baseline: 0.64 ± 0.25 m/s, follow-up: 0.53 ± 0.21 m/s, P = 0.008) and body fat percentage (baseline: 29.2 ± 9.9%, follow-up: 27.7 ± 10.3%, P = 0.047). Binomial logistic regression showed that changes in usual walking speed (P = 0.042) and body fat percentage (P = 0.011) were significantly associated with the deterioration of LTCI certification levels, even after adjustment. The cutoff values of change to discriminate the deterioration of LTCI certification levels were -0.14 m/s at the usual walking speed (P = 0.047) and -1.0% for body fat percentage (P = 0.029). Conclusions: Decreases in usual walking speed and body fat percentage may predict worse certification levels in older adults requiring LTCI.
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Força da Mão , Seguro de Assistência de Longo Prazo , Velocidade de Caminhada , Humanos , Masculino , Feminino , Idoso , Estudos Prospectivos , Força da Mão/fisiologia , Japão/epidemiologia , Sarcopenia/epidemiologia , Sarcopenia/diagnóstico , Sarcopenia/fisiopatologia , Composição Corporal/fisiologia , Certificação , Tecido Adiposo , Avaliação Geriátrica/métodosRESUMO
In the lives of those who are the target of community health nursing, it is important to collaborate with individuals and communities to improve their quality of life. Herein, we aimed to determine the association between Internet use among older individuals and locomotive syndrome (LS), frailty, and sarcopenia. In this cross-sectional study conducted between July 2022 and March 2023, we recruited 105 community-dwelling older Japanese adults who participated in a care prevention project called "Kayoi-no-ba". All participants were divided into Internet and non-Internet user groups according to the classification of a previous study. We assessed LS (standing test, two-step test, and five-question Geriatric Locomotive Function Scale), frailty (through the Questionnaire for Medical Checkup of Old-Old), and sarcopenia (grip strength, normal walking speed, and skeletal muscle mass index) and made group comparisons between Internet users and non-users. Binomial logistic regression analyses were performed with Internet use as the independent variable and sarcopenia or LS as the dependent variables. The Internet and non-Internet user groups had 69 and 36 participants, respectively. The Internet user group comprised 65.7% of all participants, which was similar to that reported in a previous study of the same age group. Between-group comparisons showed significant differences in sarcopenia and LS items, whereas adjusted binomial logistic analysis showed a significant association between sarcopenia and Internet use. In summary, among LS, frailty, and sarcopenia, sarcopenia showed the highest association with Internet use. Older adults without sarcopenia having good physical functions, such as grip strength, walking speed, and skeletal muscle index, more likely used the Internet; while older adults with sarcopenia were less likely to use the Internet. This implied that Internet use may be associated with physical function.
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BACKGROUND: The onset of locomotive syndrome (LS) precedes that of frailty. Therefore, the first step in extending healthy life expectancy is to implement measures against LS in young adults. The aim of this study was to investigate the prevalence of LS and its associated factors in young adults for early detection and prevention of LS. METHODS: The participants of this study comprised 413 university students specializing in health sciences (192 males and 221 females) with an average age of 19.1 ± 1.2 years. All participants voluntarily participated in the study and reported no serious health problems. The presence or absence of LS was evaluated using the stand-up test, two-step test, and the 25-question Geriatric Locomotive Function Scale. Additionally, musculoskeletal assessment (one-leg standing, squatting, shoulder elevation, and standing forward bend), body composition analysis (weight, body mass index, body fat mass, body fat percentage, skeletal muscle mass index (SMI), and phase angle), handgrip strength test, physical activity assessment, and nutritional assessment were conducted. Sex-stratified analyses were performed, comparing groups with and without LS. Factors associated with LS were explored using binomial logistic regression. RESULTS: Of the 413 young adults studied, 86 individuals (20.8%) were found to have LS. When stratified by sex, LS was observed to have a considerably higher prevalence in females (55, 24.9%) than in males (31, 16.1%). In males, the notable differences between the groups with and without LS were observed in one-leg standing and phase angle, whereas in females, differences were identified in body fat mass, body fat percentage, SMI, musculoskeletal pain, and handgrip strength. Two types of binomial logistic regression analysis revealed that the inability to perform one-leg standing was associated with LS in males, while the presence of musculoskeletal pain and a high body fat percentage were identified as factors associated with LS in females. CONCLUSIONS: One in five young adults were found to have LS in this study, underscoring the necessity for early intervention and LS health education. Furthermore, effective management of musculoskeletal pain is also crucial.
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Locomoção , Humanos , Masculino , Feminino , Estudos Transversais , Prevalência , Adulto Jovem , Japão/epidemiologia , Locomoção/fisiologia , Composição Corporal , Adolescente , Síndrome , Fatores de Risco , Adulto , Força da Mão , Limitação da Mobilidade , População do Leste AsiáticoRESUMO
The reliability of neck circumference measurement as an assessment tool for older adults requiring long-term care remains unknown. This study aimed to evaluate the reliability of neck circumference measurement in older adults requiring long-term care, and the effect of edema on measurement error. Two physical therapists measured the neck circumference. Intraclass correlation coefficient (ICC) and Bland-Altman analyses were performed to examine the reliability of neck circumference measurement. Correlation analysis was used to evaluate the relationship between edema values (extracellular water/total body water) and neck circumference measurement difference. For inter-rater reliability of neck circumference measurement, the overall ICC (2,1) was 0.98. The upper and lower limits of the difference between examiners ranged from -0.9 to 1.2 cm. There was no association between edema values and neck circumference measurement error. Thus, measurement of the neck circumference in older adults requiring long-term care is a reliable assessment tool, with a low error rate, even in older adults with edema.
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Assistência de Longa Duração , Pescoço , Humanos , Idoso , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Edema/diagnósticoAssuntos
Sarcopenia , Humanos , Idoso , Sarcopenia/diagnóstico , Assistência de Longa Duração , Músculo EsqueléticoRESUMO
AIM: This study aimed to ascertain the prevalence of frailty during the pandemic and to determine factors associated with changes in frailty status. METHODS: In May-June of 2020-2022, we assessed the frailty of 549 participants using the Kihon Checklist. Furthermore, we classified participant residences as urban, suburban, and rural and investigated participants' engagement in hobbies and community activities in 2020 and 2022. Cochran's Q test was used to analyze the proportions of frailty status. Subsequently, we conducted a binomial logistic regression analysis with the improvement/deterioration of frailty status from 2020 to 2022 as the dependent variable, and engagement in hobbies and community activities as the independent variables. RESULTS: Significant changes were observed among participants in urban areas, where an increase in pre-frailty and a decrease in robust individuals from 2020 to 2021 were noted. Focusing on item no. 17 (going out), the decreasing frequency had recovered by 2022 in the group of all groups. Continued engagement in only hobbies or only community activities, and continued engagement in both were associated with remained robust/frailty-status improvement. Moreover, not engaging in either hobbies or community activities was associated with remained frail/frailty-status deterioration. CONCLUSIONS: During the early stages, the COVID-19 pandemic impacted the frailty of older adults in densely populated areas. The results also suggest an attenuation in the decline in older adult activity in 2022. Continuous engagement in hobbies and community activities was crucial for improving and preventing deterioration in frailty status during the COVID-19 pandemic. Geriatr Gerontol Int 2024; 24: 40-47.
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COVID-19 , Fragilidade , Humanos , Idoso , Fragilidade/epidemiologia , Vida Independente , Pandemias , Idoso Fragilizado , Estudos Prospectivos , Japão/epidemiologia , Prevalência , COVID-19/epidemiologia , Avaliação Geriátrica/métodosRESUMO
Background and Objectives: Although the importance of sarcopenia control has been suggested, there are no minimal detectable change (MDC) studies of older adults with sarcopenia, to our knowledge, and the criteria for determining the effectiveness of interventions are unknown. The purpose of this study was to calculate the MDC in the five times sit-to-stand test (FTSST) in older Japanese adults with sarcopenia and use it as an index to determine the effectiveness of future interventions. Materials and Methods: This was a cross-sectional study conducted in January and February 2023. The participants of this study were older Japanese adults using daycare rehabilitation. Thirty-eight participants performed the FTSST twice a week. Grip strength, walking speed, and skeletal muscle mass were measured to determine the presence of sarcopenia. The diagnosis of sarcopenia was defined as low skeletal muscle mass and low muscle strength and/or low physical function, based on the Asian Working Group for Sarcopenia 2019 diagnostic criteria. Participants were further classified as sarcopenic or non-sarcopenic. Intraclass correlation coefficients (ICCs) and MDCs were calculated for the overall, sarcopenia, and non-sarcopenia groups using the two FTSST measures. The average and difference of the two variables were used to calculate the MDC. Results: Overall, the ICC (1,1) was 0.94, MDC was 2.87 s, and MDC% was 23.3%. The sarcopenia group had an ICC (1,1) of 0.93, MDC of 3.12 s, and MDC% of 24.0%. The non-sarcopenia group had an ICC (1,1) of 0.95, MDC of 2.25 s, and MDC% of 19.2%. Conclusions: Despite the limitation of the data being only from this study population, we found that a change of ≥3.12 s or ≥24.0% in the FTSST of older adults with sarcopenia was clinically meaningful and may help to determine the effectiveness of sarcopenia treatment. The improvement or decline in older Japanese adults with sarcopenia should be determined by changes in the FTSST over a longer period of time than that for other conditions.
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Sarcopenia , Humanos , Idoso , Sarcopenia/diagnóstico , Sarcopenia/epidemiologia , Assistência de Longa Duração , Estudos Transversais , População do Leste Asiático , Força Muscular/fisiologia , Força da MãoRESUMO
AIM: Assessment interventions for the decline of activities of daily living (ADLs) in older adults are crucial, as ADL decline increases hospitalization duration and mortality risk. Decreased neck circumference may result in various physical dysfunctions, including malnutrition. However, the association between neck circumference and ADLs has not been fully clarified. This study aimed to determine the association between decreased neck circumference and ADLs in older adults requiring long-term care. METHODS: The study included 152 older adults deemed to require support or care under Japan's long-term care insurance system. Neck circumference was measured just below the thyroid cartilage with a measuring tape. The Barthel index was used to evaluate ADLs, and skeletal muscle mass and nutritional status were assessed by bioelectrical impedance analysis instruments. A multivariate analysis was conducted to investigate the association between neck circumference and ADLs. RESULTS: Neck circumference demonstrated a significant inverse correlation with age and a significant positive correlation with body mass index, skeletal muscle mass index, phase angle, and Barthel index. In the multivariate analysis, ADLs was significantly associated with neck circumference (odds ratio [OR] = 0.51, P = 0.002) and phase angle (OR = 0.04, P < 0.001). CONCLUSIONS: Neck circumference is associated with age, skeletal muscle mass, and nutritional status. Furthermore, a decrease in neck circumference is suggested as an independent risk factor for ADL decline in older adults requiring long-term care. Geriatr Gerontol Int 2023; 23: 906-911.
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Assistência de Longa Duração , Desnutrição , Humanos , Idoso , Atividades Cotidianas , Estado Nutricional , Índice de Massa CorporalRESUMO
[Purpose] Older adults requiring long-term care have a higher rate of falls than older adults who do not. This study aimed to examine the relationship between falls and fear of falling and their characteristics from the perspective of older adults requiring long-term care based on a sub-item in the Modified Falls Efficacy Scale. [Participants and Methods] This study included 51 older adults who were certified as needing long-term care. Fear of falling was measured using the Modified Falls Efficacy Scale. The Modified Falls Efficacy Scale and basic information, such as cognitive function, history of falls, level of care required, and age, were collected and analyzed based on the fall or non-fall groups. [Results] The fall and non-fall groups had 27 and 24 participants, respectively. Comparisons between the groups showed significant differences in the Modified Falls Efficacy Scale scores. Binomial logistic regression analysis results showed that "crossing the street (pedestrian crossing)" was significantly associated with falls (odds ratio=0.75). [Conclusion] In this study, falls were associated with fear of falling; specifically, among the Modified Falls Efficacy Scale items, "crossing the street (pedestrian crossing)" was significantly associated with falls.
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Background and objectives: The combination of depression and sarcopenia, a condition prevalent worldwide, may cause dis-tinct problems that should not be underestimated. However, to the best of our knowledge, no reports have investigated the combined effects of depression and sarcopenia. In this study, we compared physical function, nutritional status, and daily functioning among older adults with only depression (OD), those with only sarcopenia (OS), and those with sarcopenia with depression (SD) to examine the effects of the combination of depression and sarcopenia. Materials and Methods: The participants were 186 communi-ty-dwelling older individuals who required support or care. The participants were classified into four groups based on the presence or absence of sarcopenia and depression: Control, OD, OS, and SD. The following parameters were evaluated in the four groups: grip strength, walking speed, skeletal muscle mass index (SMI), Mini Nutritional Assessment Short-Form (MNA-sf), and long-term care certification level. In addition, univariate and multivariate analyses of the survey results were performed to identify risk factors leading from OS to SD. Results: We found that 31.2% of older participants who needed support or nursing care had SD, which had more pronounced adverse effects on grip strength, walking speed, SMI, MNA-sf, and level of nursing care than OD or OS. Furthermore, multivariate analysis of SD vs. OS showed that decreased grip strength and worsening MNA-sf were independent risk factors. Conclusions: SD is common among older individuals living in the community. Patients with SD require support and care, and the condition has a greater impact on physical function, nutritional status, and decline in life function compared to OD and OS. Therefore, it is desirable to elucidate the process leading to SD and investigate the risk factors and prognosis. It is expected that sarcopenia with depression will be investigated worldwide in the future.
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Sarcopenia , Humanos , Idoso , Sarcopenia/complicações , Assistência de Longa Duração , Depressão/complicações , População do Leste Asiático , Força da MãoRESUMO
AIM: Decreased gait speed in older adults has been associated with incident disability, cognitive impairment, institutionalization, falls, deterioration in level of care, and mortality. Gait speed has been reported to be related to leg asymmetry. However, the relationship between gait speed and leg skeletal muscle mass asymmetry in older adults requiring long-term care has not been clarified. In this study, we examined the association between gait speed and leg skeletal muscle mass asymmetry and the cutoff values of leg skeletal muscle mass asymmetry that may affect gait speed. METHODS: The asymmetry index of leg skeletal muscle mass was measured in 230 older adults under the Japanese long-term care insurance system using bioelectrical impedance analysis. This cross-sectional study used multiple regression analysis and receiver operating characteristic (ROC) curve analysis to determine the relationship between gait speed and the asymmetry index of leg skeletal muscle mass. RESULTS: Multiple regression analysis revealed that the asymmetry index of leg skeletal muscle mass (ß = -0.19, P = 0.002, R2 = 0.261) was independently and significantly associated with gait speed. Furthermore, ROC analysis showed that the cutoff value of the asymmetry index of leg skeletal muscle mass that identified reduced gait speed (<1.0 m/s) was 3.02% (Area under the curve = 0.62, sensitivity 47.3%, specificity 81.0%, P = 0.014). CONCLUSIONS: The asymmetry index of leg skeletal muscle mass was associated with gait speed in older adults requiring long-term care. Future assessment and interventions directed towards symmetry of leg skeletal muscle mass may help to improve gait speed in older adults. Geriatr Gerontol Int 2023; 23: 371-375.
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Marcha , Assistência de Longa Duração , Velocidade de Caminhada , Idoso , Humanos , Estudos Transversais , Marcha/fisiologia , Perna (Membro) , Músculo Esquelético/fisiologia , Velocidade de Caminhada/fisiologiaRESUMO
[Purpose] This study aimed to identify factors associated with sarcopenia development and improvement among older adults requiring long-term care. [Participants and Methods] This prospective observational study included 118 older adults requiring long-term care in a single facility. Sarcopenia was assessed according to the 2019 diagnostic criteria of the Asian Working Group for Sarcopenia at baseline and after 6 months. Nutritional status was measured using calf circumference and the Mini Nutritional Assessment-Short Form to examine the association between sarcopenia onset and improvement. [Results] Risk of malnutrition and lower calf circumference at baseline were significantly associated with sarcopenia development. The study also showed that a non-risk of malnutrition, higher calf circumference, and higher skeletal muscle mass index were significantly associated with improved sarcopenia. [Conclusion] The Mini Nutritional Assessment-Short Form and calf circumference were able to predict sarcopenia development and improvement in older adults requiring long-term care.
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BACKGROUND: After the outbreak of the coronavirus disease 2019 (COVID-19), "pandemic-associated-frailty" or profound health deterioration, in older adults has been considered a health concern. In this study, we sought to demonstrate whether pandemic-associated-frailty is occurring in Japan, where the population is aging, by showing the prevalence of frailty before and during the COVID-19 outbreak, using the same method. METHODS: A total of 5222 older adults in Otawara City, Tochigi Prefecture, aged 70 and 75 were surveyed annually using a complete survey, excluding those who were certified as requiring long-term care. Frailty during 2017-2019 before the COVID-19 outbreak and during 2020-2021 during the COVID-19 outbreak was determined using the Kihon Checklist (KCL). Statistical analysis was performed using the χ2 test to compare annual frailty status and Kruskal-Wallis test to compare the scores. RESULTS: The frailty statuses over the five-year period showed a significant decrease in Robust and a significant increase in Pre-frailty and Frailty (p < 0.001). Frailty increased markedly during the second year of the pandemic. Based on the category, the scores deteriorated significantly for activities of daily living (p < 0.001), physical function (p = 0.003), oral function (p < 0.001), outdoor activity (p < 0.001), and depression (p < 0.001). Moreover, there was a significant deterioration in the total score for 25 items (p < 0.001). In addition, a significant deterioration was observed in the total score of 23 items, excluding the social withdrawal affected by self-restraint life (p < 0.001). CONCLUSIONS: The population prevalence of frailty in older adults increased steadily from the pre-pandemic year through the first and second years of the pandemic. Based on the 25 questions of the KCL, two aspects including visiting friends and going out less stood out. This suggests that pandemic-associated-frailty occurred in Japan.
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COVID-19 , Fragilidade , Idoso , Humanos , Fragilidade/epidemiologia , Idoso Fragilizado , Pandemias , Atividades Cotidianas , Japão/epidemiologia , Prevalência , COVID-19/epidemiologia , Avaliação Geriátrica/métodos , Vida IndependenteRESUMO
In this prospective longitudinal cohort study, we explored the characteristics of older people with lower respiratory muscle strength, according to sarcopenia severity, over the course of 1 year. The maximum expiratory pressure (MEP), grip strength, walking speed, and skeletal muscle mass index of 58 participants (28 men, 30 women; mean age, 76.9 ± 7.7 years) were measured at baseline and at the 1-year follow-up. Participants were classified into a decreased MEP group (n = 29; MEP decreased by ≥10% after 1 year) and a non-decreased MEP group (n = 29; MEP decreased by <10%). Sarcopenia status in the mild direction at baseline was significantly associated with MEP decline after one year. Repeated two-way analysis of variance showed significant main effects of measurement time (p < 0.001) and severity of sarcopenia (p = 0.026), as well as a significant interaction effect (p = 0.006). Surprisingly, MEP decreased significantly in the non-sarcopenia and sarcopenia groups, but not in the severe sarcopenia group. Thus, individuals without sarcopenia and those with moderate sarcopenia at baseline are predisposed to MEP decline and should be closely monitored for signs of such decline and associated adverse events.
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Sarcopenia , Masculino , Humanos , Feminino , Idoso , Idoso de 80 Anos ou mais , Estudos Longitudinais , Estudos Prospectivos , Sarcopenia/epidemiologia , Sarcopenia/diagnóstico , Força Muscular/fisiologia , Músculos Respiratórios/fisiologia , Força da Mão/fisiologia , Músculo EsqueléticoRESUMO
This study investigated the relationship between eye frailty and physical, social, and psychological/cognitive weaknesses among older adults in Japan. The participants were 192 community-dwelling older adult women. We measured handgrip strength, walking speed, and skeletal muscle mass; additionally, their physical, social, and psychological/cognitive frailties were surveyed using questionnaires. Eye frailty self-checks were used to assess eye frailty. Exploratory and confirmatory factor analyses were employed to verify the validity of the eye frailty self-checks. Eye frailty prevalence and related factors were investigated by conducting a binomial logistic regression analysis, with eye frailty as the dependent variable. The factor analysis results showed that a model could be constructed with the two factors of visual acuity or contrast and visual field. The model's goodness of fit was acceptable, supporting the validity of the self-checking construct. The Kihon checklist was the only variable with a significant relationship to eye frailty. Regarding the relationship between eye frailty and subordinate items of the Kihon checklist, social withdrawal [odds ratio (OR) 2.437, 95% confidence interval 1.145-5.188], cognitive function (OR 2.047, 95%CI 1.051-3.984), and depressed mood (OR 1.820, 95%CI 1.163-2.848) were significant. Eye frailty can be considered a factor reflecting the existence of social and psychological/cognitive frailties.
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Fragilidade , Feminino , Humanos , Idoso , Fragilidade/epidemiologia , Fragilidade/psicologia , Vida Independente , Idoso Fragilizado , Avaliação Geriátrica/métodos , Força da Mão , Japão/epidemiologia , CogniçãoRESUMO
AIM: In older adults, arm circumference and arm muscle circumference are common nutritional assessment tools. Bioelectrical impedance analysis devices can automatically measure arm circumference and arm muscle circumference. However, the interchangeability of the measurements made by bioelectrical impedance analysis with the actual manual measurements has not been clarified. This study examined the interchangeability of these two measurements and their relationship with sarcopenia. METHODS: The interchangeability between bioelectrical impedance analysis and manual arm circumference and arm muscle circumference measurements was calculated using Bland-Altman analysis in 112 older adults certified to require long-term care in the Japanese system. Furthermore, multivariate analysis was used to investigate the association between arm circumference and arm muscle circumference obtained using the bioelectrical impedance analysis method and sarcopenia. RESULTS: The bioelectrical impedance analysis and manual methods were interchangeable, with a percentage error of <15% (arm circumference 13.54% and arm muscle circumference 13.54%) for the upper arm anthropometric measurement. In multivariate analysis, decreased arm muscle circumference was significantly associated with sarcopenia risk. CONCLUSIONS: Values obtained using the bioelectrical impedance analysis method were interchangeable with the values obtained using manual measurement. This shows that upper arm anthropometric measurement using bioelectrical impedance analysis might be useful as a nutritional assessment tool for older adults requiring long-term care. Geriatr Gerontol Int 2022; 22: 938-942.
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Estado Nutricional , Sarcopenia , Humanos , Idoso , Impedância Elétrica , Braço , Assistência de Longa Duração , Composição Corporal , Músculo Esquelético/fisiologiaRESUMO
The coronavirus (COVID-19) pandemic significantly affected the physical and mental functions in older adults, resulting in "corona-frailty". This 2-year prospective study characterized changes in quantitative measures and corona-frailty among a cohort of community-dwelling older women. Changes were evaluated using face-to-face interactions with 39 Japanese women (mean age: 76.1 ± 5.9) in 2019 (pre-pandemic baseline) and 2021 (follow-up during the pandemic). Quantitative measurements of handgrip strength, walking speed, calf circumference, body composition, and background factors were evaluated. Body weight and trunk muscle mass significantly decreased at follow-up. Multiple regression analysis, using change in trunk muscle mass as the dependent variable and background factors as independent variables, identified that decrease in trunk muscle mass was associated with "being robust at baseline" and answering "Yes" to the question of "Do you go out less frequently compared with last year"? The 2-year trunk muscle mass change for each baseline frailty stage showed a significant decrease only in the robust group (-8.0%). The decrease in trunk muscle mass might be related to pandemic-induced lifestyle restraint, suggesting that robust older adults who are healthy and active should take measures that focus on trunk muscles to avoid "corona-frailty".
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COVID-19 , Fragilidade , Sarcopenia , Idoso , Idoso de 80 Anos ou mais , COVID-19/epidemiologia , Feminino , Fragilidade/epidemiologia , Avaliação Geriátrica/métodos , Força da Mão/fisiologia , Humanos , Vida Independente , Japão/epidemiologia , Força Muscular , Músculo Esquelético/patologia , Pandemias , Estudos Prospectivos , Sarcopenia/epidemiologia , Sarcopenia/patologiaRESUMO
AIM: The Kihon Checklist (KCL) is used to assess frailty in daily life. We aimed to identify KCL items associated with the development of frailty and recovery to robust status during the COVID-19 pandemic. METHODS: We conducted a 1-year prospective cohort study of community-dwelling adults aged 70 and 75 years in Otawara City, Tochigi Prefecture, Japan. Information regarding age, sex, presence of disease and KCL items was collected in May 2020 (baseline) and June 2021 (follow-up) using a mailed questionnaire. Changes in frailty status as determined by the KCL at baseline and follow-up were evaluated. To clarify factors related to changes in the frailty status, we conducted two sets of binomial logistic regression analyses with the presence/absence of development of frailty and presence/absence of recovery to robust status at follow-up as the dependent variables and the KCL items as the independent variables. RESULTS: The analysis included 716 participants who provided complete responses to both questionnaires. The KCL Items 6, 10, 20, 23 and 24 were related to the development of frailty, and the KCL Items 6, 15, 21 and 23 were associated with the recovery to robust status. CONCLUSIONS: The baseline KCL items regarding physical function and associated mental aspects were related to both development of frailty and recovery to robust status during the COVID-19 pandemic. Cognitive and depressive declines were associated with the development of frailty, while good oral environment and sense of fulfillment in life were associated with the recovery to robust status. Geriatr Gerontol Int 2022; 22: 745-752.