Association between 24-hour movement guidelines and physical fitness in children.
Pediatr Int
; 62(12): 1381-1387, 2020 Dec.
Article
in En
| MEDLINE
| ID: mdl-32472725
ABSTRACT
BACKGROUND:
Physical fitness levels in Japanese children are lower than those in the 1980s. Twenty-four hour movement guidelines were recently developed to improve both present and future health of children. This study examined whether meeting the 24 h movement guidelines was associated with physical fitness measures in primary school children.METHODS:
Participants were 243 Japanese children (9.4 ± 1.7 years). Moderate-to-vigorous physical activity (MVPA) was evaluated using accelerometry. Sleep duration and screen time were reported. Physical fitness was assessed by grip strength, sit-ups, sitting trunk flexion, and 20 m shuttle run test. Meeting the 24 h movement guidelines was defined as 9-11 h / night of sleep, ≤2 h/day of screen time, and at least 60 min/day of MVPA. The associations between physical fitness and the recommendations were analyzed using analysis of covariance.RESULTS:
Children meeting the MVPA recommendation alone performed better on the 20 m shuttle run and sit-up test compared to those not meeting the recommendation (number of laps 41 vs 36, P = 0.009 and number of repetitions 16.3 vs 14.7, P = 0.021). Children meeting the combination of MVPA and sleep recommendation scored significantly higher on the sit-up test compared to those not meeting the recommendations (number of repetitions 16.5 vs 15.0, P = 0.038) but the effect was similar to that of the MVPA reference only. Meeting all three 24 h movement guidelines was not associated with measures of fitness in this sample. Meeting the MVPA recommendation was associated with greater aerobic fitness and muscle endurance.CONCLUSIONS:
In order to enhance children's physical fitness, public health recommendations should primarily target MVPA.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Exercise
/
Physical Fitness
/
Practice Guidelines as Topic
Type of study:
Guideline
/
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
En
Year:
2020
Type:
Article