Objective:
In 2020, coronavirus disease-2019 (COVID-19) became the cause of
a pandemic. In response, the Japan Sports Agency issued warnings about secondary damage to
health, such as the threat to physical and mental well-being due to the lack of exercise
in this situation. In this study, we report on cross-sectional and longitudinal
examinations of standing trunk flexion to evaluate how temporary long-term school closures
affected musculoskeletal function in elementary school students.
Patients and Methods:
All children in one public elementary school in T-city
during the school years 2019 and 2020 were included in this study. A digital forward
flexion meter was used to measure standing trunk flexion.
Results:
In this study, 284 (284/289: 98.3%) and 266 (266/274: 97.1%)
children in school years 2020 and 2019, respectively, were found to have valid data for
cross-sectional analysis. The standing trunk flexion did not show significant differences
between grades or sexes. In the longitudinal analysis, the results of the comparison of
standing trunk flexion in children for two consecutive years revealed significant
differences only between grades 3 and 4 (
P
<0.05) and between girls in
grades 3 and 4 (
P
<0.01), but no significant differences in other
grades or among boys or girls were observed.
Conclusion:
Initially, we expected that there would be a difference in the
results of functional assessment using standing trunk flexion depending on the period of
absence from school. However, the results of this study showed no significant changes in
standing trunk flexion. Moreover, since children’s musculoskeletal functions may be
affected by various factors during the COVID-19 pandemic, they should be carefully
monitored in the future.