Transitions of 24-H Movement Behaviour Profiles From Schooldays to Weekends and Their Associations With Health-Related Quality of Life and Well-Being in Czech Adolescents.
David Janda, Jan Dygrýn, František Chmelík and 5 others
PMID 40576241WHAT IT FOUND
Adolescents who kept an active, low-sitting, good-sleep routine from school days to weekends reported higher quality of life.
Those who shifted to poorer habits had significantly lower scores. Weekend drop-offs in activity were common, but not linked to worse outcomes.
Key findings
01Adolescents who maintained the 'Excellent' profile (high activity, low sitting, good sleep) from schooldays to weekends had higher health-related quality of life and well-being than those who shifted to poorer profiles.
02Shifting from a 'Fair' or 'Poor' profile to a 'Poor' profile over the weekend was associated with the largest drops in well-being (14.4 points) and quality of life (9.5 points).
03Most adolescents did not maintain their weekday activity levels, with 80% of the most active group dropping to a lower activity profile by the weekend.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The study is cross-sectional, so it cannot prove that poor weekend habits cause lower well-being, only that they are associated. Quality of life and well-being data were only available for a subset of participants (451 and 484 respectively), reducing the sample size for these key outcomes. The 'Poor' profile on schooldays was very small (2%), which may limit the precision of estimates for this group. Self-reported data for confounders like BMI and maternal education may be subject to recall bias.
Declared interests
The authors declare no conflicts of interest. The study was funded by the Ministry of Education, Youth and Sports and the Czech Science Foundation.
The easy way to misread this
Do not assume that every drop in activity over the weekend harms well-being. The study found that shifting from the highest activity profile to the second-highest was not associated with significantly worse outcomes. Only shifts to the lower 'Fair' and 'Poor' profiles showed clear negative associations.