School of Medical and Health Sciences, Tung Wah College, Hong Kong SAR, China.
SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
Int J Environ Res Public Health. 2023 Jan 25;20(3):2155. doi: 10.3390/ijerph20032155.
Patients with adolescent idiopathic scoliosis (AIS) are found to have a lower level of physical activity, and may have reduced exercise capacity due to spinal deformity. Previous study showed the benefits of high-intensity interval training (HIIT), named E-Fit, which is specifically designed for patients with AIS to improve musculoskeletal health and psychological well-being. To optimize the beneficial effects of training, the current study aimed to investigate the appropriate exercise intensity and metabolic demand in patients with AIS when performing E-Fit.
In all, 22 female subjects, 10 diagnosed with AIS and 12 gender-matched healthy controls, aged between 10 and 16 years, were recruited. Subjects were instructed to perform two trials of a seven min E-Fit. Breath-by-breath gas exchange parameters including oxygen consumption (VO), heart rate (HR) and the rate of perceived exertion (PRE) were measured during exercise. Demographic data and clinical features of AIS and body composition were obtained. Metabolic demand between AIS and control groups was compared using MANOVA with covariates adjustment.
Patients with AIS had an earlier onset of menarche ( = 0.01), higher visceral adipose tissue ( = 0.04) and percentage body fat ( = 0.03) as compared to controls. Patients with AIS showed a significantly higher adjusted means of VO average in both the first ( = 0.014) and second trials ( = 0.011) of E-Fit. The adjusted mean of the highest measured VO was higher than healthy controls and reached statistical significance in the second trial ( = 0.004). Both the AIS and control group exercised at a similar percentage of VO peak (64.26% vs. 64.60%).
Patients with AIS showed higher oxygen consumption during E-Fit than heathy controls, which might indicate a higher metabolic cost. Patients with AIS could carry out exercise at a moderate exercise intensity similar to that of healthy controls, but special considerations in designing an exercise program, such as frequent rest intervals, would be useful to avoid fatigue among patients with AIS.
青少年特发性脊柱侧凸（AIS）患者的体力活动水平较低，由于脊柱畸形，可能运动能力下降。先前的研究表明高强度间歇训练（HIIT）的益处，即 E-Fit，专门为 AIS 患者设计，以改善骨骼肌肉健康和心理幸福感。为了优化训练的有益效果，本研究旨在探讨 AIS 患者进行 E-Fit 时的适当运动强度和代谢需求。
共招募了 22 名女性受试者，其中 10 名诊断为 AIS，12 名性别匹配的健康对照组，年龄在 10 至 16 岁之间。要求受试者进行两次 7 分钟的 E-Fit 试验。运动过程中测量呼吸到呼吸的气体交换参数，包括耗氧量（VO）、心率（HR）和感知用力（PRE）。获得 AIS 的人口统计学数据和临床特征以及身体成分。使用 MANOVA 比较 AIS 组和对照组之间的代谢需求，并进行协变量调整。
与对照组相比，AIS 患者的初潮时间更早（= 0.01），内脏脂肪组织（= 0.04）和体脂百分比（= 0.03）更高。与对照组相比，AIS 患者在 E-Fit 的第一（= 0.014）和第二试验（= 0.011）中的 VO 平均值调整后显著更高。测量的最高 VO 的平均调整后平均值高于健康对照组，在第二次试验中达到统计学意义（= 0.004）。AIS 组和对照组在 E-Fit 中的运动强度百分比均相似（64.26%比 64.60%）。
与健康对照组相比，AIS 患者在 E-Fit 中表现出更高的耗氧量，这可能表明代谢成本更高。AIS 患者可以进行类似于健康对照组的中等强度运动，但在设计运动方案时需要特别考虑，例如频繁的休息间隔，以避免 AIS 患者疲劳。
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