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中华脑科疾病与康复杂志(电子版) ›› 2025, Vol. 15 ›› Issue (01) : 15 -20. doi: 10.3877/cma.j.issn.2095-123X.2025.01.003

临床研究

亚急性期脑卒中患者心肺适能预测模型的构建及验证
张泽延1, 段止璇1, 吴惠群2, 王国栋2, 凌华2, 杜晓霞1,()   
  1. 1. 100068 北京,首都医科大学康复医学院
    2. 100068 北京,中国康复研究中心北京博爱医院康复科
  • 收稿日期:2024-11-05 出版日期:2025-02-15
  • 通信作者: 杜晓霞
  • 基金资助:
    国家重点研发计划项目(2022YFC3600305)

Construction and validation of a cardiorespiratory fitness prediction model for subacute stroke patients based on influencing factors

Zeyan Zhang1, Zhixuan Duan1, Huiqun Wu2, Guodong Wang2, Hua Ling2, Xiaoxia Du1,()   

  1. 1. School of Rehabilitation Medicine, Capital Medical University, Beijing 100068,China
    2. Department of Rehabilitation, Beijing Bo'Ai Hospital, China Rehabilitation Research Center,Beijing 100068, China
  • Received:2024-11-05 Published:2025-02-15
  • Corresponding author: Xiaoxia Du
引用本文:

张泽延, 段止璇, 吴惠群, 王国栋, 凌华, 杜晓霞. 亚急性期脑卒中患者心肺适能预测模型的构建及验证[J/OL]. 中华脑科疾病与康复杂志(电子版), 2025, 15(01): 15-20.

Zeyan Zhang, Zhixuan Duan, Huiqun Wu, Guodong Wang, Hua Ling, Xiaoxia Du. Construction and validation of a cardiorespiratory fitness prediction model for subacute stroke patients based on influencing factors[J/OL]. Chinese Journal of Brain Diseases and Rehabilitation(Electronic Edition), 2025, 15(01): 15-20.

目的

构建亚急性期脑卒中患者心肺适能(CRF)-峰值摄氧量(VO2peak)预测模型并验证其效果。

方法

选取自2023年10月至2024年6月在中国康复研究中心北京博爱医院康复科进行康复治疗的轻度及中度脑卒中患者进行前瞻性研究。根据心肺运动试验(CPET)结果,将VO2peak≥15 mL/(kg·min)定义为CRF良好组,<15 mL/(kg·min)定义为CRF较差组。比较2组患者的临床资料,采用多因素Logistic回归分析筛选脑卒中患者VO2peak的影响因素。按照7∶3的比例随机将患者分为训练集和内部测试集,训练集用于构建基于Logistic回归的预测模型,通过内部测试集验证模型的预测效果。

结果

共纳入80例患者,其中CRF良好组41例,CRF较差组39例;训练集56例,内部测试集24例。2组患者的下肢Brunnstrom分期、Fugl-Meyer运动功能评定量表(FMA)、改良Barthel指数、功能性步行能力量表、6-min步行试验距离比较,差异有统计学意义(P<0.05)。多因素Logistic回归分析结果显示FMA评分是VO2peak的独立影响因素(P=0.038)。构建的预测模型在内部测试集中表现出良好的预测效果,受试者工作特征曲线下面积为0.745(95%CI:0.536~0.954),灵敏度为54.5%,特异度为92.3%。

结论

构建基于FMA评分预测亚急性期脑卒中患者CRF-VO2peak的预测模型,有助于临床早期识别低VO2peak患者,制定个性化康复计划。

Objective

To construct a predictive model of cardiorespiratory fitness (CRF) - peak oxygen uptake (VO2peak) in stroke patients in the subacute phase based on influencing factors and to validate its effectiveness.

Methods

Mild and moderate severity stroke patients who underwent rehabilitation in the Neurorehabilitation Department of Beijing Boai Hospital from October 2023 to June 2024 were selected for prospective study. Based on the results of cardiopulmonary exercise test (CPET),VO2peak≥15 mL/(kg·min) was defined as the good CRF group, and <15 mL/(kg·min) was defined as the poor CRF group. The clinical data of 2 groups were compared, and multifactorial Logistic regression analysis was used to screen the influencing factors of VO2peak in stroke patients. The patients were randomly divided into a training set and an internal test set according to the ratio of 7∶3. The training set was used to construct a prediction model based on Logistic regression, and the prediction effect of the model was verified by the internal test set.

Results

A total of 80 patients were included, including 41 patients in the good CRF group and 39 patients in the poor CRF group, 56 patients in the training set and 24 patients in the internal test set. The lower limb Brunnstrom staging, Fugl-Meyer assessment scale(FMA), modified Barthel index, functional walking ability scale, and 6-min walk test distance comparison,the differences were statistically significant (P<0.05). The results of multifactorial Logistic regression analysis showed that FMA score was an independent influence on VO2peakP=0.038). The constructed prediction model showed good predictive effect in the internal test set, with an area under the receiver operating characteristic curve of 0.745 (95%CI: 0.536-0.954), a sensitivity of 54.5%, and a specificity of 92.3%.

Conclusion

Constructing a prediction model for predicting CRF-VO2peak in stroke patients in the subacute stage based on FMA scores helps to identify patients with low VO2peak early in the clinic and formulate personalized rehabilitation plans.

表1 CRF良好组和CRF较差组患者的临床资料比较
Tab.1 Comparison of clinical data between good CRF group and poor CRF group
表2 影响亚急性期脑卒中患者VO2peak的多因素Logistic回归分析
Tab.2 Multivariate Logistic regression analysis of VO2peak in stroke patients in the subacute phase
图1 亚急性期脑卒中患者心肺适能预测模型的ROC曲线 A:建模组;B:验证组;ROC:受试者工作特征;AUC:曲线下面积
Fig.1 ROC curve of cardiorespiratory fitness prediction model in patients with subacute stroke
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