Effects of E-Fit Exercise Intervention on Bone Density, Muscle Functions, and Quality of Life in Girls with Adolescent Idiopathic Scoliosis: A Randomised Controlled Pilot Study
Refereed conference paper presented and published in conference proceedings


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AbstractIntroduction: Adolescent idiopathic scoliosis (AIS) is associated with lower bone mineral density (BMD) and muscle strength. We aimed to assess exercise intervention on BMD, muscle functions, and quality of life (QoL) in AIS.
Methods: Girls with AIS were randomly assigned to exercise or control group. Exercise group participated in a 6-month home-based E-Fit exercise programme. At baseline and 6 months, BMD using dual-energy X-ray absorptiometry, muscle strength using shoulder/biceps/leg/back-lift and trunk-curl, QoL using Scoliosis Research Society-22 (SRS-22), and patient’s view using feedback questionnaire were investigated.
Results: Forty girls (age 11-14 years) completed the study, with 16 in the exercise group and 18 in the control group. Both groups had similar maturity, body size, BMD, and muscle functions at baseline. The exercise group had better improvement (as shown by effect size of Cohen’s d) in right femoral neck bone mineral content (0.162); SRS-22 functional (0.252), SRS-22 self-image (0.271) and SRS-22 total scores (0.102); and muscle parameters of biceps (0.460), leg-lift (0.109), and trunk-curl (0.192). However, differences did not reach statistical significance, likely owing to Type II errors. Subjects were positive with the programme for feasibility of domestic application (70%). Some subjects felt the exercise was difficult and timeconsuming and that compliance could be enhanced by shortening exercise duration (47% of subjects, 35% of parents) and positive reinforcement with programme compliance (24% of subjects, 29 of parents).
Conclusion: This pilot study strongly indicated potential benefits of exercise on bone health, muscle functions, and QoL for patients with AIS. It provided valuable information for sample size estimation and ways of enhancing patient’s compliance which are important for long-awaited definitive studies on exercise intervention for patients with AIS.
Declaration: HMRF-funding (Ref: 14152371).
Acceptance Date02/10/2019
All Author(s) ListKY Cheuk, RWL Lau, EMS Tam, SSC Hui, JCY Cheng, TP Lam
Name of ConferenceHong Kong Orthopaedic Association 39th Annual Congress 2019 (HKOA 2019)
Start Date of Conference02/11/2019
End Date of Conference03/11/2019
Place of ConferenceHong Kong
Country/Region of ConferenceHong Kong
Year2019
Month11
Day2
Place of PublicationHong Kong
LanguagesEnglish-United Kingdom

Last updated on 2020-29-05 at 11:34