Typologies of activity-related behaviours during adolescence and their transitions: a longitudinal analysis of the ELSPAC cohort.

OBJECTIVES

The objective of this study was to identify typologies of activity-related behaviours during adolescence and to explore transitions between the identified typologies. Additionally, we aimed to identify demographic indicators associated with the transitions and typology membership.

DESIGN

Prospective cohort study.

SETTING

Czech Republic.

PARTICIPANTS

Individuals involved in the Czech part of the European Longitudinal Study of Pregnancy and Childhood study, aged 11 to 18 years. The study involved over 563 individuals, of whom 380 provided complete data for the analysis.

PRIMARY OUTCOME MEASURES

Time spent outdoors, participation in organised physical activity (PA) and sport activities, time spent watching television and using a personal computer, and total sleep duration at ages 11, 15 and 18 years. Typologies were identified using Latent Transition Analysis.

RESULTS

Four typologies of activity-related behaviours were identified and labelled to reflect their behavioural profiles: (1) (high outdoor time and organised PA and sport participation, low screen time and optimal sleep duration); (2) (median outdoor time, high organised PA and sport participation, high screen time, and optimal sleep duration); (3) (average outdoor time and organised PA and sport participation, low screen time and not meeting sleep guidelines) and (4) (average duration of all behaviours and optimal sleep duration). A major shift in typology membership from 11 to 18 years was observed, with a decreasing proportion of individuals in typologies characterised by a high proportion of outdoor time and participation in organised PA and sport activities (ie, ; ). A high proportion of individuals also transitioned to the typology with poor sleeping habits (ie, ). Sex and maternal education were associated with the typology membership and transition probabilities (p<0.05).

CONCLUSIONS

Targeting lifestyle interventions to those with specific lifestyle patterns in early adolescence may be beneficial for reducing the risk of poor sleep and promoting healthy lifestyle patterns later in life.