Adolescent Idiopathic Scoliosis Patients Had Higher Metabolic Cost and Easier Fatigability During High-Intensity Interval Training
Invited conference paper presented and published in conference proceedings
CUHK Authors
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AbstractIntroduction
The complex spinal deformity of patients with adolescent idiopathic scoliosis (AIS) could lead
to a lower physical capacity and an increase in energy expenditure. E-Fit exercise intervention
(E-Fit), a modified high-intensity interval training (HIIT), was designed for patients with AIS
to improve their physical health. The current study aimed to investigate the cardiovascular
responses in patients with AIS when performing E-Fit.
Methods
Twenty-two female (10 patients with AIS and 12 healthy controls) aged between 10 to 16 were
recruited. Subjects were instructed to perform two trials of E-Fit. Demographic data and
clinical features of AIS were obtained. Breath-by breath gas exchange parameters including
oxygen consumption (VO2) and heart rate (HR) were measured using telemetric portable gas
analyzer system. Rate of perceived exertion (RPE) using modified Borg Scale was used to
assess physical exertion during exercise.
Results
Patients with AIS had earlier onset of menarche (p=0.01), higher visceral adipose tissue
(p=0.04) and percentage body fat (p=0.03) as compared to healthy controls. When performing
E-Fit exercises, adjusted mean of the highest measured VO2 was numerically higher than
healthy controls reaching statistical significance in second trial (p=0.01) of E-Fit. Patients with
AIS were observed to have a decline in HR peak, HR average and RPE in the second trial.
Both groups exercised at a similar percentage of VO2 peak (62.44% to 65.94%) in both trials.
Conclusion
Patients with AIS showed higher oxygen consumption on average when performing E-Fit
which indicated AIS might have a higher metabolic cost and get fatigue sooner than controls.
The complex spinal deformity of patients with adolescent idiopathic scoliosis (AIS) could lead
to a lower physical capacity and an increase in energy expenditure. E-Fit exercise intervention
(E-Fit), a modified high-intensity interval training (HIIT), was designed for patients with AIS
to improve their physical health. The current study aimed to investigate the cardiovascular
responses in patients with AIS when performing E-Fit.
Methods
Twenty-two female (10 patients with AIS and 12 healthy controls) aged between 10 to 16 were
recruited. Subjects were instructed to perform two trials of E-Fit. Demographic data and
clinical features of AIS were obtained. Breath-by breath gas exchange parameters including
oxygen consumption (VO2) and heart rate (HR) were measured using telemetric portable gas
analyzer system. Rate of perceived exertion (RPE) using modified Borg Scale was used to
assess physical exertion during exercise.
Results
Patients with AIS had earlier onset of menarche (p=0.01), higher visceral adipose tissue
(p=0.04) and percentage body fat (p=0.03) as compared to healthy controls. When performing
E-Fit exercises, adjusted mean of the highest measured VO2 was numerically higher than
healthy controls reaching statistical significance in second trial (p=0.01) of E-Fit. Patients with
AIS were observed to have a decline in HR peak, HR average and RPE in the second trial.
Both groups exercised at a similar percentage of VO2 peak (62.44% to 65.94%) in both trials.
Conclusion
Patients with AIS showed higher oxygen consumption on average when performing E-Fit
which indicated AIS might have a higher metabolic cost and get fatigue sooner than controls.
All Author(s) ListLau Rufina Wing Lum, Kwan Rachel Lai Chu, Cheng Jack Chun Yiu, Hui Stanley Sai Cheun, Lam Tsz Ping
Name of ConferenceThe Hong Kong Orthopaedic Association 2022 Annual Congress
Start Date of Conference05/11/2022
End Date of Conference06/11/2022
Place of ConferenceHong Kong
Country/Region of ConferenceHong Kong
Year2022
LanguagesEnglish-United Kingdom
