Pediatric asthma outcomes worsen with less aerobic activity, more sedentary time

  • Lu KD & al.
  • Pediatr Pulmonol
  • 10 Feb 2020

  • curated by Emily Willingham, PhD
  • Clinical Essentials
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Takeaway

  • Pediatric asthma outcomes worsen with increased sedentary time and decreased aerobic activity in school-age children with past or current asthma.

Why this matters

  • These factors are both modifiable and warrant attention in this patient population.

Key results

  • 35.7% of the participants had overweight or obesity.
  • Lower aerobic fitness was linked to having had past asthma or having current asthma or asthma attacks and wheeze with exercise or with activity limitations.
  • More sedentary time, for example, screen time, was linked to higher rates of these outcomes as well.
  • Obesity and overweight were not linked to asthma-related outcomes.
  • Average endurance values were significantly lower in children with asthma or asthma history vs control participants.
  • Obesity or overweight exacerbated this effect in children with asthma compared with normal-weight children without asthma.
  • Days of physical activity showed a weak correlation with endurance values.

Study design

  • 665 children were included, about 12% of whom had current asthma.
  • Funding: National Center for Advancing Translational Sciences.

Limitations

  • Cross-sectional study that does not establish temporal associations.
  • Physical activity not measured objectively.
  • Asthma information based on questionnaires.