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Reinforcing the benefits of children’s physical activity on lung health
  1. Gang Wang1,2,
  2. Erik Melén2
  1. 1Department of Integrated Traditional Chinese and Western Medicine, Sichuan University West China Hospital, Chengdu, China
  2. 2Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
  1. Correspondence to Dr Erik Melén, Department of Clinical Science and Education Sodersjukhuset, Karolinska Institute, Stockholm, Stockholm, Sweden; erik.melen{at}ki.se

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Lung development starts already in utero whereas lung function development can be conceived to begin shortly after birth, marked by the infant’s first cry. This development progresses through adolescence until reaching its peak during early adulthood (typically between 20 and 25 years of age). However, a notable portion of the general population (4%–12%) experiences suboptimal lung development, failing to attain normal peak lung function in early adulthood.1 This phenomenon is linked to an increased prevalence and earlier onset of respiratory, cardiovascular and metabolic disorders, as well as premature mortality. Recent evidence suggests that within the general population, diverse lung function trajectories exist from birth to early adulthood, including high, normal and low trajectories. However, certain subgroups deviate from these trajectories, exhibiting catch-up (where lung function starts from a lower trajectory but progresses to higher ones) or growth failure (where lung function starts from a normal or higher trajectory but declines to lower ones) in lung function development (figure 1).2 Therefore, intervening during this critical period to promote healthy lung function development may result in enhanced respiratory health and overall well-being throughout the lifespan.

Figure 1

Schematic representation of potential lung function transitions of individual lung function trajectories through childhood to early adulthood. The term ‘catch-up’ refers to the potential lung function recovery from lower lung function trajectories to higher lung function trajectories in some children, whereas ‘growth failure’ refers to the potential …

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Footnotes

  • X @ErikMelen

  • Contributors GW and EM wrote the editorial together.

  • Funding The Swedish Heart-Lung Foundation (No. 20210546), The Swedish Research Council (No. 2022-06340) and Region Stockholm, ALF (FoUI-962643).

  • Competing interests None declared.

  • Provenance and peer review Commissioned; internally peer reviewed.

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