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Effects of inspiratory muscle training after lung transplantation in children
  1. Takayoshi Yamaga1,
  2. Shuhei Yamamoto2,
  3. Yasunari Sakai2 and
  4. Takashi Ichiyama3
  1. 1Occupational Therapy, Health Science University, Minamitsuru-gun, Japan
  2. 2Department of Rehabilitation, Shinshu University Hospital, Matsumoto, Nagano, Japan
  3. 3First Department of Internal Medicine, Shinshu University School of Medicin, Matsumoto, Nagano, Japan
  1. Correspondence to Dr Takayoshi Yamaga; t.yamaga{at}


Pulmonary rehabilitation is a cornerstone of management for patients after lung transplantation (LT), but the benefits of inspiratory muscle training (IMT) after LT in children are unclear. Therefore, we examined whether IMT can improve respiratory function and dyspnoea in a paediatric patient after LT.

The patient was a 13-year-old boy who underwent double LT. However, mild physical activity such as walking triggered dyspnoea for the patient. The patient underwent IMT with the intensity of approximately 30% of his maximal inspiratory pressure (MIP) for 2 months.

The patient’s MIP was increased by approximately 60% after 2 months, and his forced vital capacity as a percent of the predicted normal value increased from 74.6% to 83.4%, with improvement of dyspnoea.

IMT may help improve dyspnoea after LT in children with respiratory muscle weakness and a decline in respiratory function.

  • rehabilitation medicine
  • transplantation
  • lung function

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  • Contributors TY and TI devised the project and the main conceptual ideas. SY and TI encouraged TY to investigate 'Effects of IMT after LT in children' and supervised the findings of this work. TY and SY did literature review of IMT. SY and YS helped acquisition of data and supervised technique of assessments. All authors contributed to analyses and interpretation of data. All authors discussed the results and contributed to the final manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.