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  • Oral presentation
  • Open Access

Respiratory muscle strength in adolescents with idiopathic scoliosis

Scoliosis20072 (Suppl 1) :S4

  • Published:


  • Public Health
  • Physical Performance
  • Pressure Transducer
  • Vital Capacity
  • Idiopathic Scoliosis


The aim of the study was to assess the respiratory muscle strength in adolescents with idiopathic scoliosis (IS), conservatively treated using exercises by Dobosiewicz [1].

Study design

The study group included eighty-one subjects (65 female, 16 male) aged 7 to 17 years (mean age 14.3 ± 2.3 years) with thoracic scoliosis (n = 44) and double major scoliosis (n = 37). Mean Cobb angle was 39 degrees (SD 17.8) and mean apical vertebral rotation (AVR) was 12 ± 7.1 degrees.


Vital capacity (VC) was measured using Jaeger's spirometer and values were compared to Zapletal's recommendations [2]. Maximal static respiratory pressures including maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), were measured according to W. Tomalak's recommendations for Polish children [3]. Measurements were made using a portable, digital pressure meter equipped with the Omega PX25 pressure transducer (ZETA product – model MMM2).

Results and conclusion

The maximal static respiratory pressures (percent predicted value) in children with scoliosis conservatively treated using exercises by Dobosiewicz were normal (MIP mean 119.1 ± 40.25%). For MEP, values (mean 164.9 ± 35.96%) were even higher than predicted, which may be related to age (the norm of adolescents is extrapolated) and/or the effect of rehabilitation on physical performance.

Authors’ Affiliations

Department of Rehabilitation, Medical University of Silesia, 40-170 Katowice, Poland
IGiChP o/Rabka Zroj, Poland


  1. Dyner-Jama I, Dobosiewicz K, Niepsuj K, Niepsuj G, Jedrzejewska A, Czernicki K: Effect of asymmetric respiratory exercise therapy on respiratory system function; evaluation using spirometric examination in children with idiopathic scoliosis. Wiad Lek. 2000, 53: 603-610. PolishPubMedGoogle Scholar
  2. Zapletal A: Lung function in children and adolescents. Methods, Reference Values. Progress in respiration research. Edited by: Zapletal A, Samanak M, Paul T. 1987, Basel: Karger, 114-218.Google Scholar
  3. Tomalak W, Pogorzelski A, Prusak J: Normal values for maximal static inspiratory and expiratory pressures in healthy children. Ped Pulmon. 2002, 34: 42-46. 10.1002/ppul.10130.View ArticleGoogle Scholar


© Durmala and Tomalak; licensee BioMed Central Ltd. 2007

This article is published under license to BioMed Central Ltd.