Effect of Excessive Screen Time on Cardiorespiratory Fitness in Children: A Longitudinal Study.

Background: This study investigated the effect of different components of screen time (mobile phone use, TV/video viewing, and video gaming) on cardiorespiratory fitness (CRF) development in children aged 9-12 years.

Methods: This was a two-year longitudinal study conducted with 175 children (49.7% girls, mean age = 9.

Frequency of working at home, body mass index, and productivity in Japanese office workers: A cohort study.

Background: Since the start of the COVID-19 pandemic, the number of people working at home has grown significantly.

Objective: This cohort study aimed to investigate whether the frequency of working at home was associated with changes in body mass index (BMI) and productivity from 2018 to 2020.

Method: Frequency of working at home was self-reported.

Association Between Workplace Social Capital and Neck Pain: A Cross-Sectional Study Among Workers.

Objective: We examined the association between workplace social capital (WSC) and presence of neck pain (NP) among workers.

Methods: This cross-sectional study included 595 workers. Presence of NP was assessed using Numerical Rating scale.

Association Between Abrupt Change to Teleworking and Physical Symptoms During the Coronavirus Disease 2019 (COVID-19) Emergency Declaration in Japan.

Objective: We investigated the association between telework frequency and the presence of non-COVID-19-related physical symptoms during the COVID-19 emergency declaration among workers in Japan.

Methods: Data were collected from 1648 workers via web-based self-reported questionnaires. Multivariate logistic regression models were used to investigate the association between telework frequency per week (0, 1-2, 3-4, and ≥5 days/week) and the presence of stiff shoulders, eyestrain, and low back pain.