Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction
Background: Persistent maladaptive changes of corticospinal tract (CST) and quadriceps strength deficits exist in patients with anterior cruciate ligament reconstruction (ACLR). This study aimed to investigate the relationships between the structural alterations of CST and quadriceps muscle strength...
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Elsevier
2025-01-01
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| Series: | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214687324000281 |
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| author | Le Yu Shanshan Zheng Yushi Chen Xiao'ao Xue Zikun Wang JiaYan Cheng Yang Sun He Wang Yinghui Hua |
| author_facet | Le Yu Shanshan Zheng Yushi Chen Xiao'ao Xue Zikun Wang JiaYan Cheng Yang Sun He Wang Yinghui Hua |
| author_sort | Le Yu |
| collection | DOAJ |
| description | Background: Persistent maladaptive changes of corticospinal tract (CST) and quadriceps strength deficits exist in patients with anterior cruciate ligament reconstruction (ACLR). This study aimed to investigate the relationships between the structural alterations of CST and quadriceps muscle strength deficits in patients with ACLR. Methods: Twenty-nine participants who had undergone unilateral ACLR (29 males; age = 32.61 ± 6.72 years) were enrolled in a cross-sectional investigation. We chose CST as a region of interest and performed diffusion tensor imaging (DTI) that measured the microstructure of white matter tracts. Maximal voluntary isometric quadriceps muscle strength was assessed using a hand-held dynamometer. Simple and partial correlation analyses were performed between the DTI outcomes and quadriceps muscle strength deficits in patients with ACLR before and after controlling for age, sex, BMI, Tegner activity score, and graft type. Sub-group analyses were also performed to investigate the relationships between the DTI outcomes of CST structure and quadriceps muscle strength deficits according to the graft type before and after controlling for age, sex, BMI, and Tegner activity score. Results: Lower limb symmetry index (LSI) of quadriceps muscle strength was associated with a higher ratio of radial diffusivity (RD, r = −0.379, p = 0.042) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score and graft type. In subgroup analyses of ACLR patients with hamstring autografts, we found that higher injured quadriceps muscle strength was associated with higher axial diffusivity (AD, r = 0.616, p = 0.033) of CST structure and lower LSI of quadriceps muscle strength was associated with higher ratio of mean diffusivity (MD, r = −0.682, p = 0.014) and RD (r = −0.759, p = 0.004) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score. Conclusion: Decreased integrity (higher ratio of RD) of CST microstructure in ACLR patients was significantly associated with lower quadriceps limb symmetry index, which hinted that quadriceps muscle strength deficits of injured side may be a demyelinating process of CST microstructure in ACLR. |
| format | Article |
| id | doaj-art-ebf175b4e3cd463a80e8fb4abc8c2b9e |
| institution | Kabale University |
| issn | 2214-6873 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| spelling | doaj-art-ebf175b4e3cd463a80e8fb4abc8c2b9e2025-01-22T05:42:25ZengElsevierAsia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology2214-68732025-01-01393036Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstructionLe Yu0Shanshan Zheng1Yushi Chen2Xiao'ao Xue3Zikun Wang4JiaYan Cheng5Yang Sun6He Wang7Yinghui Hua8Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China; School of Exercise and Health, Shanghai University of Sport, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China; School of Exercise and Health, Shanghai University of Sport, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China; School of Exercise and Health, Shanghai University of Sport, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, ChinaInstitute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China; Human Phenome Institute, Fudan University, Shanghai, China; Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence, Fudan University, Shanghai, ChinaDepartment of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China; Corresponding author.Background: Persistent maladaptive changes of corticospinal tract (CST) and quadriceps strength deficits exist in patients with anterior cruciate ligament reconstruction (ACLR). This study aimed to investigate the relationships between the structural alterations of CST and quadriceps muscle strength deficits in patients with ACLR. Methods: Twenty-nine participants who had undergone unilateral ACLR (29 males; age = 32.61 ± 6.72 years) were enrolled in a cross-sectional investigation. We chose CST as a region of interest and performed diffusion tensor imaging (DTI) that measured the microstructure of white matter tracts. Maximal voluntary isometric quadriceps muscle strength was assessed using a hand-held dynamometer. Simple and partial correlation analyses were performed between the DTI outcomes and quadriceps muscle strength deficits in patients with ACLR before and after controlling for age, sex, BMI, Tegner activity score, and graft type. Sub-group analyses were also performed to investigate the relationships between the DTI outcomes of CST structure and quadriceps muscle strength deficits according to the graft type before and after controlling for age, sex, BMI, and Tegner activity score. Results: Lower limb symmetry index (LSI) of quadriceps muscle strength was associated with a higher ratio of radial diffusivity (RD, r = −0.379, p = 0.042) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score and graft type. In subgroup analyses of ACLR patients with hamstring autografts, we found that higher injured quadriceps muscle strength was associated with higher axial diffusivity (AD, r = 0.616, p = 0.033) of CST structure and lower LSI of quadriceps muscle strength was associated with higher ratio of mean diffusivity (MD, r = −0.682, p = 0.014) and RD (r = −0.759, p = 0.004) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score. Conclusion: Decreased integrity (higher ratio of RD) of CST microstructure in ACLR patients was significantly associated with lower quadriceps limb symmetry index, which hinted that quadriceps muscle strength deficits of injured side may be a demyelinating process of CST microstructure in ACLR.http://www.sciencedirect.com/science/article/pii/S2214687324000281Anterior cruciate ligament reconstructionDiffusion tensor imagingLimb symmetry indexNeuroplasticityQuadriceps muscle strength |
| spellingShingle | Le Yu Shanshan Zheng Yushi Chen Xiao'ao Xue Zikun Wang JiaYan Cheng Yang Sun He Wang Yinghui Hua Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology Anterior cruciate ligament reconstruction Diffusion tensor imaging Limb symmetry index Neuroplasticity Quadriceps muscle strength |
| title | Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| title_full | Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| title_fullStr | Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| title_full_unstemmed | Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| title_short | Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| title_sort | neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction |
| topic | Anterior cruciate ligament reconstruction Diffusion tensor imaging Limb symmetry index Neuroplasticity Quadriceps muscle strength |
| url | http://www.sciencedirect.com/science/article/pii/S2214687324000281 |
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