1.Effects of Contralateral Limb Cross-Balance Training on Rehabilitation Outcomes after Anterior Cruciate Ligament Reconstruction
Chao LIU ; Jianping LI ; Shijia LI ; Shaopeng ZOU ; Jianwei XIA ; Honghao ZHANG ; Guqiang LI ; Xiangzhan JIANG
Journal of Medical Biomechanics 2025;40(2):337-343
Objective To evaluates the effects of cross-balance training on knee function,dynamic balance,and rectus femoris(RF)activation in patients after anterior cruciate ligament reconstruction(ACLR).Methods Forty ACLR patients at 5th-6th week after operation were randomly divided into experimental group and control group.The experimental group received the cross-balance training on the basis of standard rehabilitation,while the control group received only standard rehabilitation.Knee function was assessed with the Lysholm score,dynamic balance,and root mean square(RMS)of RF surface electromyography.The correlation between RMS and dynamic balance was also examined.Results After intervention,the Lysholm score of the experimental group was significantly higher than that of the control group(P<0.01).Regarding balance function,both the gait line length and single support line length of the experimental group were significantly greater than those of the control group(P<0.01).Conversely,the mediolateral displacement of the experimental group was significantly lower than that of the control group(P<0.01).Furthermore,the RF RMS of the experimental group was significantly larger than that of the control group(P<0.01).The RF RMS was positively correlated with the gait line length and single support line length,whereas it was negatively correlated with the mediolateral displacement(P<0.05).Conclusions Cross-balance training significantly enhances knee function,dynamic balance,and RF activation in post-ACLR patients,supports the theory of cross-education.Cross-balance training has certain application values in ACL postoperative rehabilitation.
2.Effects of Contralateral Limb Cross-Balance Training on Rehabilitation Outcomes after Anterior Cruciate Ligament Reconstruction
Chao LIU ; Jianping LI ; Shijia LI ; Shaopeng ZOU ; Jianwei XIA ; Honghao ZHANG ; Guqiang LI ; Xiangzhan JIANG
Journal of Medical Biomechanics 2025;40(2):337-343
Objective To evaluates the effects of cross-balance training on knee function,dynamic balance,and rectus femoris(RF)activation in patients after anterior cruciate ligament reconstruction(ACLR).Methods Forty ACLR patients at 5th-6th week after operation were randomly divided into experimental group and control group.The experimental group received the cross-balance training on the basis of standard rehabilitation,while the control group received only standard rehabilitation.Knee function was assessed with the Lysholm score,dynamic balance,and root mean square(RMS)of RF surface electromyography.The correlation between RMS and dynamic balance was also examined.Results After intervention,the Lysholm score of the experimental group was significantly higher than that of the control group(P<0.01).Regarding balance function,both the gait line length and single support line length of the experimental group were significantly greater than those of the control group(P<0.01).Conversely,the mediolateral displacement of the experimental group was significantly lower than that of the control group(P<0.01).Furthermore,the RF RMS of the experimental group was significantly larger than that of the control group(P<0.01).The RF RMS was positively correlated with the gait line length and single support line length,whereas it was negatively correlated with the mediolateral displacement(P<0.05).Conclusions Cross-balance training significantly enhances knee function,dynamic balance,and RF activation in post-ACLR patients,supports the theory of cross-education.Cross-balance training has certain application values in ACL postoperative rehabilitation.
3.Associations of Life's Crucial 9 and the risk of thyroid dysfunction: a cohort study
Juanjuan ZHANG ; Yuerong HE ; Zhiyuan TANG ; Xiangdong SUN ; Jiale SHEN ; Jianping GONG ; Chao LIU ; Yang XIA
Chinese Journal of Epidemiology 2025;46(8):1400-1408
Objective:Exploring the association between Life's Crucial 9 (LC9) and the risk of thyroid dysfunction (TD), as well as its potential predictive capacity.Methods:A total of 247 600 TD-free participants from the UK Biobank were enrolled in the study. The LC9 score was divided into three CVH groups: low (0-), medium (50-), and high (80-100). Cox proportional hazards regression models were used to calculate the HRs and 95% CIs of the risk of TD with LC9 CVH status. Calculate Harrell's concordance index ( C-index), net reclassification improvement (NRI), and integrated discrimination improvement (IDI) to evaluate the predictive ability of the LC9 score and Life's Essential 8 (LE8) score. Results:During a median follow-up of 12.3 years, 5 515, 911, and 4 869 new cases of TD, hyperthyroidism, and hypothyroidism were documented, respectively. Participants with a high LE8 CVH group had 57.00% ( HR=0.43, 95% CI: 0.38-0.49), 55.00% ( HR=0.45, 95% CI: 0.34-0.60), and 58.00% ( HR=0.42, 95% CI: 0.37-0.47) lower risk of TD, hyperthyroidism, and hypothyroidism, respectively, than those with low CVH group. Compared with the LE8 score, the improvement in C-index for the LC9 score predicted TD risk was 0.004 (95% CI: 0.001-0.007), the NRI was 0.101 (95% CI: 0.021-0.103), and the IDI was 0.001 (95% CI: 0.000-0.001). Conclusions:The better CVH status, defined by LC9, was associated with a lower risk of TD. Compared to the LE8 score, the LC9 score demonstrated a significant enhancement in both risk discrimination and reclassification capability for TD risk.
4.Stroke etiology and infarction characteristics in patients with acute ischemic stroke
Yuxi HOU ; Shiyue CHEN ; Xia TIAN ; Hongjian SHEN ; Chengwei SHAO ; Jianping LU ; Bing TIAN
Academic Journal of Naval Medical University 2025;46(9):1108-1115
Objective To explore the correlation between stroke etiology and clinical and imaging features in patients with acute ischemic stroke(AIS)due to large vessel occlusion treated by intravascular thrombectomy.Methods A total of 213 patients with AIS and endovascular embolectomy in our hospital from Oct.2016 to Jun.2018 were enrolled retrospectively.According to the etiological classification criteria of Trial of Org 10172 in Acute Stroke Treatment(TOAST),there were 116 cases of cardioembolism and 97 cases of non-cardioembolism.Multivariate logistic regression analysis was used to screen the clinical and imaging characteristics for identifying cardioembolism and non-cardioembolism.Results Compared with non-cardioembolism AIS,cardioembolism AIS was associated with higher NIHSS scores(adjusted odds ratio[OR]=1.09,95%confidence interval[95%CI]1.01-1.18,P=0.02),atrial fibrillation(adjusted OR=76.46,95%CI 26.75-218.51,P<0.01),absence of hypertension(adjusted OR=0.32,95%CI 0.12-0.84,P=0.02),antiplatelet drug use(adjusted OR=5.03,95%CI 1.22-20.63,P=0.03),shorter onset-to-puncture time(adjusted OR=0.998,95%CI 0.996-1.000,P=0.04),and presence of hyperdense artery sign(HAS)(adjusted OR=4.45,95%CI 1.47-13.49,P=0.01).Conclusion There are some differences in clinical and imaging characteristics between patients with cardioembolism and non-cardioembolism AIS.The occurrence of HAS suggests a higher probability of cardioembolism in AIS patients.
7.Associations of Life's Crucial 9 and the risk of thyroid dysfunction: a cohort study
Juanjuan ZHANG ; Yuerong HE ; Zhiyuan TANG ; Xiangdong SUN ; Jiale SHEN ; Jianping GONG ; Chao LIU ; Yang XIA
Chinese Journal of Epidemiology 2025;46(8):1400-1408
Objective:Exploring the association between Life's Crucial 9 (LC9) and the risk of thyroid dysfunction (TD), as well as its potential predictive capacity.Methods:A total of 247 600 TD-free participants from the UK Biobank were enrolled in the study. The LC9 score was divided into three CVH groups: low (0-), medium (50-), and high (80-100). Cox proportional hazards regression models were used to calculate the HRs and 95% CIs of the risk of TD with LC9 CVH status. Calculate Harrell's concordance index ( C-index), net reclassification improvement (NRI), and integrated discrimination improvement (IDI) to evaluate the predictive ability of the LC9 score and Life's Essential 8 (LE8) score. Results:During a median follow-up of 12.3 years, 5 515, 911, and 4 869 new cases of TD, hyperthyroidism, and hypothyroidism were documented, respectively. Participants with a high LE8 CVH group had 57.00% ( HR=0.43, 95% CI: 0.38-0.49), 55.00% ( HR=0.45, 95% CI: 0.34-0.60), and 58.00% ( HR=0.42, 95% CI: 0.37-0.47) lower risk of TD, hyperthyroidism, and hypothyroidism, respectively, than those with low CVH group. Compared with the LE8 score, the improvement in C-index for the LC9 score predicted TD risk was 0.004 (95% CI: 0.001-0.007), the NRI was 0.101 (95% CI: 0.021-0.103), and the IDI was 0.001 (95% CI: 0.000-0.001). Conclusions:The better CVH status, defined by LC9, was associated with a lower risk of TD. Compared to the LE8 score, the LC9 score demonstrated a significant enhancement in both risk discrimination and reclassification capability for TD risk.
8.Multidimensional CT radiomics for preoperative prediction of TFE3-rearranged renal cell carcinoma
Bin XIA ; Chengwei CHEN ; Na LI ; Yun BIAN ; Chengwei SHAO ; Jianping LU ; Qinqin KANG
Chinese Journal of Urology 2025;46(5):343-348
Objective:To develop a preoperative CT-based radiomics model integrating multidimensional features for the accurate prediction of TFE3-rearranged renal cell carcinoma(TFE3-rRCC).Methods:This study retrospectively enrolled 865 pathologically confirmed renal cell carcinoma(RCC)patients in The First Affiliated Hospital of Naval Medical University from June 2013 to June 2023,including 60 cases of TFE3-rRCC and 805 cases of non-TFE3 RCC(comprising clear cell RCC,papillary RCC,and chromophobe RCC). Among them,627 were male and 238 were female,with a mean age of(54.1 ± 12.7)years(range:14?82 years). The median maximum tumor diameter was 4.0(2.6,6.0)cm. Based on the chronological order of CT examinations,the patients were divided into training( n=478),validation( n=206),and test( n=181)sets in an approximate 6∶2∶2 ratio. Using precontrast and corticomedullary phase CT images,we extracted peritumoral imaging features,habitat features,3D radiomic features,and 2.5D deep learning radiomic features. A deep learning radiomics score(DLR-SCORE)prediction model was constructed using least absolute shrinkage and selection operator(LASSO)regression. The diagnostic performance of the model was evaluated by receiver operating characteristic(ROC)curve analysis,with the area under the curve(AUC)as the primary metric. Additionally,sensitivity,specificity,and accuracy were calculated based on the confusion matrix. Results:A total of 12 442 features were extracted from non-contrast and corticomedullary phase CT images,from which eight key features were selected to construct the DLR-SCORE model. The model demonstrated diagnostic accuracies for TFE3-rRCC of 98.5%(471/478)in the training set,81.6%(168/206)in the validation set,and 86.2%(156/181)in the test set. The AUC of ROC curve was 0.98(95% CI 0.96?1.00)in the training set,0.83(95% CI 0.71?0.94)in the validation set,and 0.88(95% CI 0.76?1.00)in the test set. In the test set,the DLR-SCORE model achieved a sensitivity of 88.9%(16/18)and a specificity of 85.9%(140/163)for detecting TFE3-rRCC. Conclusions:The DLR-SCORE model integrating multidimensional CT radiomics features demonstrated favorable predictive performance for TFE3-rRCC,offering a promising noninvasive tool to assist preoperative diagnosis.
9.Multidimensional CT radiomics for preoperative prediction of TFE3-rearranged renal cell carcinoma
Bin XIA ; Chengwei CHEN ; Na LI ; Yun BIAN ; Chengwei SHAO ; Jianping LU ; Qinqin KANG
Chinese Journal of Urology 2025;46(5):343-348
Objective:To develop a preoperative CT-based radiomics model integrating multidimensional features for the accurate prediction of TFE3-rearranged renal cell carcinoma(TFE3-rRCC).Methods:This study retrospectively enrolled 865 pathologically confirmed renal cell carcinoma(RCC)patients in The First Affiliated Hospital of Naval Medical University from June 2013 to June 2023,including 60 cases of TFE3-rRCC and 805 cases of non-TFE3 RCC(comprising clear cell RCC,papillary RCC,and chromophobe RCC). Among them,627 were male and 238 were female,with a mean age of(54.1 ± 12.7)years(range:14?82 years). The median maximum tumor diameter was 4.0(2.6,6.0)cm. Based on the chronological order of CT examinations,the patients were divided into training( n=478),validation( n=206),and test( n=181)sets in an approximate 6∶2∶2 ratio. Using precontrast and corticomedullary phase CT images,we extracted peritumoral imaging features,habitat features,3D radiomic features,and 2.5D deep learning radiomic features. A deep learning radiomics score(DLR-SCORE)prediction model was constructed using least absolute shrinkage and selection operator(LASSO)regression. The diagnostic performance of the model was evaluated by receiver operating characteristic(ROC)curve analysis,with the area under the curve(AUC)as the primary metric. Additionally,sensitivity,specificity,and accuracy were calculated based on the confusion matrix. Results:A total of 12 442 features were extracted from non-contrast and corticomedullary phase CT images,from which eight key features were selected to construct the DLR-SCORE model. The model demonstrated diagnostic accuracies for TFE3-rRCC of 98.5%(471/478)in the training set,81.6%(168/206)in the validation set,and 86.2%(156/181)in the test set. The AUC of ROC curve was 0.98(95% CI 0.96?1.00)in the training set,0.83(95% CI 0.71?0.94)in the validation set,and 0.88(95% CI 0.76?1.00)in the test set. In the test set,the DLR-SCORE model achieved a sensitivity of 88.9%(16/18)and a specificity of 85.9%(140/163)for detecting TFE3-rRCC. Conclusions:The DLR-SCORE model integrating multidimensional CT radiomics features demonstrated favorable predictive performance for TFE3-rRCC,offering a promising noninvasive tool to assist preoperative diagnosis.
10.Effects of aerobic exercise on learning and memory functions, hippocampal synaptic plasticity and the adiponectin signaling pathway in diabetic rats
Qinghua TIAN ; Xia LIU ; Penghui DENG ; Wei JI ; Jianping LI ; Rundong HU
Chinese Journal of Geriatrics 2024;43(3):348-353
Objective:To explore the effects of aerobic exercise on learning and memory functions, hippocampal synaptic plasticity and the ADPN signaling pathway in diabetic rats.Methods:6-week-old male SD rats were randomly divided into a blank control group(NC group)and a high-fat diet group, and a rat model for diabetes was induced by feeding rats in the high-fat diet group with a high-fat diet combined with intraperitoneal instillation of low-dose streptozotocin(STZ)for 5 weeks.Rats in the high-fat diet group were further divided into a diabetic group(DC group)and a diabetic aerobic exercise group(DM group)after successful establishment of the model.Rats in the DM group were subjected to aerobic exercise for eight weeks and then the Morris water maze test was conducted to assess learning and memory functions, relevant serum markers were measured, Golgi staining was used to examine synaptic changes in the hippocampus, and Western blot was carried out to detect hippocampal protein expression levels of adiponectin(ADPN), AMP-activated protein kinase(AMPK), glucose transporter 4(GLUT4), synaptic plasticity-related protein synaptophysin(SYN)and postsynaptic density protein 95(PSD-95)for rats in each group.Results:Serum FBG and HBA1c in diabetic rats were markedly significantly decreased after 8 weeks of aerobic exercise( P<0.01), and serum ADPN and insulin were significantly increased after 8 weeks of aerobic exercise( P<0.05).When test results from the three groups of rats compared, the F value was 69.248 for FBG, 6.740 for INS, 7.017 for HBA1C and 14.315 for serum ADPN.The results of the water maze test and hippocampal Golgi staining showed that the escape latency of diabetic rats was highly significantly decreased after 8 weeks of aerobic exercise( P<0.01).The platform crossing times, the number of dendritic branches and the dendritic spine density in the hippocampal CA3 region of diabetic rats were significantly increased after 8 weeks of aerobic exercise( P<0.05).When results from the three groups of rats were compared, the F value was 13.934 for escape latency, 5.864 for platform crossing times, 9.307 and 6.734 for the number of dendritic branches and the density of dendritic spine in hippocampal CA3 region.Hippocampal PSD-95, SYN, ADPN, p-AMPK, and GLUT4 protein expression levels of diabetic rats were significantly increased( P<0.05)after 8 weeks of aerobic exercise.When results from the three groups of rats were compared, the F value was 15.137 for SYN, 5.415 for PSD-95, 9.687 for ADPN, 27.761 for GLUT4, and 9.298 for p-AMPK. Conclusions:Eight weeks of aerobic exercise can improve the learning and memory functions of diabetic rats, and the mechanisms may be related to exercise-induced hippocampal ADPN/AMPK/GLUT4 signaling activation in rats, leading to enhanced synaptic plasticity in the hippocampus.

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