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 Abnormal Gait Patterns and an Elevated Degree of Pain after Daily Walking: A Preliminary Study.

This study aimed to investigate whether abnormal gait patterns are associated with experiencing an elevated degree of pain after daily walking. In this preliminary, cross-sectional study, 223 community-dwelling older adults were assessed for pain experienced after daily walking using a simple question that involved asking the subject about their past experiences of an elevated degree of pain after walking for 400 m or more. Gait patterns were assessed using the Comprehensive Gait Assessment using InerTial Sensor score (C-GAITS score), derived from the data measured by Inertial sensors attached to the lower trunk and heel when subjects walked along a 15 m walkway at a self-selected preferred speed.

Indirect effects of social activity on appetite via depressive symptoms in community-dwelling older adults: A cross-sectional study.

Depressive symptoms have a strong effect on appetite decline in older adults. There is also an association between social activity and decreased depressive symptoms, but the mechanism between appetite and social activity with respect to depressive symptoms is unclear. This cross-sectional study examined the direct and indirect effects of social activity on appetite, via depressive symptoms.

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.

Effectiveness of workplace active rest programme on low back pain in office workers: a stepped-wedge cluster randomised controlled trial.

Objective: This study aimed to investigate the effectiveness of workplace active rest programme (WARP) on chronic low back pain (LBP) among office workers.

Design: A closed cohort, stepped-wedge cluster randomised trial was conducted. The total duration of the study was 16 weeks (4 weeks for each step).

Association between sleep disturbance and low back and pelvic pain in 4-month postpartum women: A cross-sectional study.

Purpose: Persistent low back and pelvic pain (LBPP) is a postpartum-specific health problem. Sleep disturbances' association with persistent LBPP is not yet clear. We aimed to examine the cross-sectional association between sleep disturbance and persistent LBPP at 4 months postpartum.

Association between comprehensive workstation and neck and upper-limb pain among office worker.

Objectives: Our study aimed to investigate the association between comprehensive workstations and neck and upper-limb pain (NUP) among office workers.

Methods: This cross-sectional study included 307 office workers (median age, 39 years; 88% men). Workstations (presence of armrest, armrest position, number of monitors used, mouse position, mouse usage, keyboard usage, and keyboard position) were investigated in terms of 17 items and judged as "adequate" or "inadequate.

The Impact of Sedentary Behavior After Childbirth on Postpartum Lumbopelvic Pain Prolongation: A Follow-Up Cohort Study.

A substantial number of women have postpartum lumbopelvic pain (LBPP). Additionally, many postpartum women stay for long inactivity. Therefore, we examined the impact of sedentary behavior on persistent postpartum LBPP and the difference in this impact due to parity.

Association Between Kinesiophobia and Life Space Among Community-Dwelling Older People with Chronic Musculoskeletal Pain.

Objective: Kinesiophobia (i.e., fear of movement caused by pain) is increasingly acknowledged as a determinant of disuse among patients with chronic musculoskeletal pain.

Relationship between exercise capacity and depressive symptoms in community-dwelling older adults.

Background: Depressive symptoms cannot be ignored when exercise intervention is performed. The purpose of this study was to clarify the association between depressive symptoms and exercise capacity in community-dwelling older adults.

Methods: In this cross-sectional study, we analyzed 110 community-dwelling older adults (mean age [standard deviation] = 70.

Daily physical activity is associated with increased sonographically measured bone status during lactation.

Objectives: The purpose of this cross-sectional study was to investigate the association between daily physical activity and sonographically measured bone status among women during the lactation period.

Methods: Final participants were 152 women 4 months after childbirth. Bone status of the participants was measured using quantitative ultrasonometry of the calcaneus (speed of sound).

Effect of preoperative sedentary behavior on clinical recovery after total knee arthroplasty: a prospective cohort study.

Objectives: Prolonged sedentary behavior (SB) may affect clinical improvements following total knee arthroplasty (TKA). We aim to assess preoperative SB effect on improvements in clinical outcomes after TKA. We hypothesized that patients with high proportion of preoperative SB have small improvements in clinical outcomes after TKA.

Impact of loss of independence in basic activities of daily living on caregiver burden in patients with Alzheimer's disease: A retrospective cohort study.

Aim: To investigate the association between decline of basic activities of daily living (ADL) in each dimension and change in caregiver burden in patients with mild-to-moderate Alzheimer's disease.

Methods: This retrospective study included 117 outpatients with Alzheimer's disease who presented to the Memory Clinic at the National Center for Geriatrics and Gerontology in Japan between September 2010 and April 2014 (mean age 77.3 ± 6.

Association Between Excessive Weight Gain During Pregnancy and Persistent Low Back and Pelvic Pain After Delivery.

Study Design: Retrospective study.

Objective: To investigate the association between gestational weight gain (GWG) during pregnancy and persistent low back and pelvic pain (LBPP) after delivery.

Summary Of Background Data: Persistent LBPP after delivery is a risk factor for developing depression and chronic pain as well as incurring sick leave.

Lower physical activity is associated with daytime sleepiness in children aged 9-12 years.

This study clarified the prevalence of daytime sleepiness in fourth-, fifth-, and sixth-grade children and examined the association between physical activity (PA) and daytime sleepiness in children aged 9-12 years. This cross-sectional study included 314 children (mean age ± standard deviation: 10.5 ± 1.

Association Between Public Transportation Use and Loneliness Among Urban Elderly People Who Stop Driving.

To examine the association between public transportation use and loneliness in urban elderly who stop driving. In this cross-sectional study, we assessed 31 community-dwelling older adults who had stopped driving. Public transportation use was assessed by using frequency and divided into two groups.

Reliability and Validity of the Japanese Version of the Physical Activity Questionnaire for Older Children.

Objectives: This study aimed to examine the reliability and validity of the Japanese version of the Physical Activity Questionnaire for Older Children (PAQ-C) in Japanese children aged 9 to 12 years.

Methods: A total of 210 children aged between 9 and 12 years participated. Internal consistency and test-retest reliability were evaluated using Cronbach alpha coefficient and intraclass correlation coefficient (ICC), respectively.

Effect of Pain Severity on Executive Function Decline in Community-Dwelling Older Adults.

The purpose of this study was to explore the reciprocal relationship between pain severity and executive function in community-dwelling older adults. In this prospective cohort study, 64 Japanese community-dwelling older adults aged 60 years or older (mean age 72.8 years; women, 68.

Association between pain-related fear and presenteeism among eldercare workers with low back pain.

Background: Presenteeism (work productivity loss at work) and low back pain (LBP) are prevalent among eldercare workers. Presenteeism is a serious emerging problem in an occupational setting. While many studies report the impact of pain-related fear on absenteeism, its impact on presenteeism remains unclear.

Association Between Objectively Measured Physical Activity and the Number of Chronic Musculoskeletal Pain Sites in Community-Dwelling Older Adults.

Objective: Physical inactivity is recognized as a pandemic health problem. The association of pain with physical activity, particularly when measured objectively, in older adults is unclear. This study investigates the association of number of chronic musculoskeletal pain sites and pain severity with objectively measured physical activity in community-dwelling older adults.