Association between social network and dietary variety among community-dwelling older adults.

Objective: Social networks are critical social health factors for older adults. This study examined the association between social networks and dietary variety among community-dwelling older adults.

Design: A cross-sectional study, using the dietary variety score (DVS) developed for older Japanese people to assess dietary variety and the Lubben Social Network Scale (LSNS-6) to assess social networks.

Association between asymmetric dimethylarginine and sarcopenia in community-dwelling older women.

Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of endothelium nitric oxide synthesis and causes endothelial dysfunction that may be related to sarcopenia. However, the association between ADMA and sarcopenia has not been studied. We evaluated the correlations between plasma ADMA levels and sarcopenia in community-dwelling older women.

Low Dietary Variety Is Associated with Incident Frailty in Older Adults during the Coronavirus Disease 2019 Pandemic: A Prospective Cohort Study in Japan.

Background: Stagnation of social activity due to the COVID-19 pandemic probably reduces motivation to maintain a healthy diet. It is important to report on the dietary changes observed in older adults during a period of restriction on outings and to clarify the relationship between dietary variety and frailty. This one-year follow-up study examined the association between frailty and dietary variety during the COVID-19 pandemic.

Social contact impacts physical activity and sedentary behavior among older adults in Japan due to COVID-19.

Background: The coronavirus disease 2019 (COVID-19) has adversely affected social contact and physical activity. This study investigated the correlation between physical activity, social contact, and sedentary time among adults aged 65 years and above during the COVID-19 pandemic.

Methods: This study was conducted in N City, H Prefecture, Japan.

Relationship Between Social Activity and Frailty in Japanese Older Women During Restriction on Outings due to COVID-19.

Background: This study investigated the relationship between social activities and frailty during the restriction on outings due to COVID-19.

Design: A cross-sectional study.

Setting And Subjects: This study was conducted in City Nishinomiya of Prefecture Hyogo, in Japan.

Lower dietary variety is associated with worse sleep quality in community-dwelling elderly Japanese women.

Background And Objectives: Sleep disturbance is a common health problem in the elderly population. We examined the association between dietary variety and subjective sleep quality in community-dwelling elderly Japanese women.

Methods And Study Design: This cross-sectional study recruited 160 community-dwelling elderly women aged ≥65 years.

Relationship Between Dietary Variety and Frailty in Older Japanese Women During the Period of Restriction on Outings Due to COVID-19.

Objectives: To investigate the relationship between diet and frailty in community-dwelling older adults during the period of restriction on outings due to novel coronavirus disease 2019 (COVID-19).

Method: A mail survey targeting adults aged 65 years or older, including questions on sex, age, height, weight, and social participation, was conducted in May 2020. The participants' dietary variety score and frailty score were then calculated.