Want to be fit? Start with your mind! The role of the placebo effect in physical fitness in children: a preliminary systematic review and meta-analysis

Int J Obes (Lond)Published Systematic review and meta-analysis

Authors' conclusion

The placebo effect is present in fitness-related parameters in children, regardless of the Body Mass Index status.

Study context

Population
Children in fitness-related interventions
Comparison
Placebo intervention vs control in fitness-related interventions
Outcome
Fitness-related parameters
Follow-up
Final
Methodological detailspreliminary, Searched PubMed, Cochrane, PsycINFO, PsycARTICLES, TripDatabase and Embase; meta-analysis of studies with comparable research plans
  • Preliminary
  • Searched PubMed, Cochrane, PsycINFO, PsycARTICLES, TripDatabase and Embase; meta-analysis of studies with comparable research plans

Pooled result

As reported in the abstract

  • Significant differences favouring the placebo intervention
  • Placebo vs control: higher maximal heart rates, shorter recovery times, longer ergometry phases and running time, lower peak and average perceived exertion

Further pooled results

Fitness-related parameters by BMI status

Placebo effect present regardless of BMI status

Nocebo effect

Nocebo effect not observed

Original publication

Want to be fit? Start with your mind! The role of the placebo effect in physical fitness in children: a preliminary systematic review and meta-analysis. Int J Obes (Lond). Published 11 December 2023. doi:10.1038/s41366-023-01413-2

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