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Different doses of Pilates-based exercise therapy for chronic low back pain: a randomised controlled trial with economic evaluation
  1. Gisela Cristiane Miyamoto1,2,
  2. Katherinne Ferro Moura Franco1,
  3. Johanna M van Dongen2,
  4. Yuri Rafael dos Santos Franco1,
  5. Naiane Teixeira Bastos de Oliveira1,
  6. Diego Diulgeroglo Vicco Amaral1,
  7. Amanda Nery Castelo Branco1,
  8. Maria Liliane da Silva1,
  9. Maurits W van Tulder2,
  10. Cristina Maria Nunes Cabral1
  1. 1Master’s and Doctoral Program in Physical Therapy, Universidade Cidade de Sao Paulo, São Paulo, Brazil
  2. 2Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
  1. Correspondence to Dr Gisela Cristiane Miyamoto, Master’s and Doctoral Program in Physical Therapy, Universidade Cidade de Sao Paulo, Sao Paulo 03071-000, Brazil; gfisio_miyamoto{at}hotmail.com

Abstract

Objectives To evaluate the effectiveness and cost-utility of the addition of different doses of Pilates to an advice for non-specific chronic low back pain (NSCLBP) from a societal perspective.

Design Randomised controlled trial with economic evaluation.

Setting Physiotherapy clinic in São Paulo, Brazil.

Participants 296 patients with NSCLBP.

Interventions All patients received advice and were randomly allocated to four groups (n=74 per group): booklet group (BG), Pilates once a week (Pilates group 1, PG1), Pilates twice a week (Pilates group 2, PG2) and Pilates three times a week (Pilates group 3, PG3).

Main outcome measures Primary outcomes were pain and disability at 6-week follow-up.

Results Compared with the BG, all Pilates groups showed significant improvements in pain (PG1, mean difference (MD)=−1.2, 95% CI −2.2 to −0.3; PG2, MD=−2.3, 95% CI −3.2 to −1.4; PG3, MD=−2.1, 95% CI −3.0 to −1.1) and disability (PG1, MD=−1.9, 95% CI −3.6 to −0.1; PG2, MD=−4.7, 95% CI −6.4 to −3.0; PG3, MD=−3.3, 95% CI −5.0 to −1.6). Among the different doses, PG2 showed significant improvements in comparison with PG1 for pain (MD=−1.1, 95% CI −2.0 to −0.1) and disability (MD=−2.8, 95% CI −4.5 to −1.1). The cost-utility analysis showed that PG3 had a 0.78 probability of being cost-effective at a willingness-to-pay of £20 000 per quality-adjusted life-year gained.

Conclusions Adding two sessions of Pilates exercises to advice provided better outcomes in pain and disability than advice alone for patients with NSCLBP; non-specific elements such as greater attention or expectation might be part of this effect. The cost-utility analysis showed that Pilates three times a week was the preferred option.

Trial registration number NCT02241538, Completed.

  • rehabilitation
  • randomised controlled trial
  • lower back
  • exercises

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Footnotes

  • Contributors GCM was involved in setting the research question, trial design, protocol writing, data analysis and manuscript preparation. GCM, KFMF, YRdSF and NTBdO were the therapists of the study. ANCB was the assessor for baseline assessment. DDVA and MLdS were the blinded assessors for follow-up assessment. CMNC contributed in randomisation schedule preparation, protocol writing, and manuscript preparation. MWvT and JMvD contributed in data interpretation and statistical analysis strategy. All authors reviewed and approved the manuscript prior to submission.

  • Funding GCM was granted a PhD scholarship from São Paulo Research Foundation (FAPESP) (process: 2013/26321-8 and 2016/07915-2).

  • Competing interests GCM is an instructor of NeoPilates courses.

  • Patient consent Obtained.

  • Ethics approval Research Ethics Committee of Universidade Cidade de Sao Paulo (CAAE: 29303014.7.0000.0064).

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

  • Data sharing statement No additional data available.

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