Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia
IntroductionStroke patients with hemiplegia are at an increased risk of falling during sit-to-stand (Si-St) and stand-to-sit (St-Si) tasks, partly due to impaired bilateral lower limb symmetry. Maintaining symmetrical movement between the limbs in these tasks can help reduce fall incidence.MethodThi...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Neurology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fneur.2025.1494133/full |
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| author | Meijin Hou Meijin Hou Jian He Dongwei Liu Chenyi Guo Ye Ma Xiaobo Luo |
| author_facet | Meijin Hou Meijin Hou Jian He Dongwei Liu Chenyi Guo Ye Ma Xiaobo Luo |
| author_sort | Meijin Hou |
| collection | DOAJ |
| description | IntroductionStroke patients with hemiplegia are at an increased risk of falling during sit-to-stand (Si-St) and stand-to-sit (St-Si) tasks, partly due to impaired bilateral lower limb symmetry. Maintaining symmetrical movement between the limbs in these tasks can help reduce fall incidence.MethodThis study aimed to investigate bilateral lower limb symmetry during Si-St and St-Si tasks in stroke patients with hemiplegia to compare their performance with healthy controls. Thirteen stroke patients and 13 healthy controls participated in the study. Participants were instructed to perform the 30-s chair stand test at their self-selected pace. Kinematic and kinetic parameters were calculated using OpenSim's inverse kinematics and inverse dynamics tools. Bilateral symmetry was quantified using the symmetry index (SI), with an asymmetry threshold set at 10%.ResultsThe stroke group exhibited significantly greater lower limb asymmetry in both kinematic and kinetic parameters during Si-St and St-Si tasks compared to the healthy controls, with the kinetic parameters being more pronounced. In the stroke group, notable bilateral asymmetry (SI > 10%) was observed in the ankle joint angle (P < 0.05) during both tasks. Furthermore, severe asymmetry (SI > 30%) was identified joint moments across all lower limb joints, vertical ground reaction forces, and medial-lateral center of pressure.DiscussionThese findings highlight the need for targeted rehabilitation programs focusing on improving strength, coordination, and balance. Close monitoring of SI values, particularly for kinetic parameters, is recommended to guide and evaluate the effectiveness of these interventions. |
| format | Article |
| id | doaj-art-943d2bac5e20439a9d7aaf60ffa0ef8e |
| institution | Kabale University |
| issn | 1664-2295 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Neurology |
| spelling | doaj-art-943d2bac5e20439a9d7aaf60ffa0ef8e2025-01-29T05:21:16ZengFrontiers Media S.A.Frontiers in Neurology1664-22952025-01-011610.3389/fneur.2025.14941331494133Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegiaMeijin Hou0Meijin Hou1Jian He2Dongwei Liu3Chenyi Guo4Ye Ma5Xiaobo Luo6National Joint Engineering Research Centre of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou, ChinaKey Laboratory of Orthopaedics and Traumatology of Traditional Chinese Medicine and Rehabilitation (Fujian University of TCM), Ministry of Education, Fuzhou, ChinaResearch Academy of Grand Health, Faculty of Sports Sciences, Ningbo University, Ningbo, ChinaSchool of Information Technology and Artificial Intelligence, Zhejiang University of Finance and Economics, Hangzhou, ChinaDepartment of Electronic Engineering, Tsinghua University, Beijing, ChinaResearch Academy of Grand Health, Faculty of Sports Sciences, Ningbo University, Ningbo, ChinaDepartment of Orthopedics, The 4th Medical Center of the Chinese PLA General Hospital, Beijing, ChinaIntroductionStroke patients with hemiplegia are at an increased risk of falling during sit-to-stand (Si-St) and stand-to-sit (St-Si) tasks, partly due to impaired bilateral lower limb symmetry. Maintaining symmetrical movement between the limbs in these tasks can help reduce fall incidence.MethodThis study aimed to investigate bilateral lower limb symmetry during Si-St and St-Si tasks in stroke patients with hemiplegia to compare their performance with healthy controls. Thirteen stroke patients and 13 healthy controls participated in the study. Participants were instructed to perform the 30-s chair stand test at their self-selected pace. Kinematic and kinetic parameters were calculated using OpenSim's inverse kinematics and inverse dynamics tools. Bilateral symmetry was quantified using the symmetry index (SI), with an asymmetry threshold set at 10%.ResultsThe stroke group exhibited significantly greater lower limb asymmetry in both kinematic and kinetic parameters during Si-St and St-Si tasks compared to the healthy controls, with the kinetic parameters being more pronounced. In the stroke group, notable bilateral asymmetry (SI > 10%) was observed in the ankle joint angle (P < 0.05) during both tasks. Furthermore, severe asymmetry (SI > 30%) was identified joint moments across all lower limb joints, vertical ground reaction forces, and medial-lateral center of pressure.DiscussionThese findings highlight the need for targeted rehabilitation programs focusing on improving strength, coordination, and balance. Close monitoring of SI values, particularly for kinetic parameters, is recommended to guide and evaluate the effectiveness of these interventions.https://www.frontiersin.org/articles/10.3389/fneur.2025.1494133/fullstrokebilateralsymmetry indexsit-to-standstand-to-sit |
| spellingShingle | Meijin Hou Meijin Hou Jian He Dongwei Liu Chenyi Guo Ye Ma Xiaobo Luo Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia Frontiers in Neurology stroke bilateral symmetry index sit-to-stand stand-to-sit |
| title | Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia |
| title_full | Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia |
| title_fullStr | Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia |
| title_full_unstemmed | Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia |
| title_short | Bilateral lower limb symmetry during sit-to-stand and stand-to-sit tasks in stroke patients with hemiplegia |
| title_sort | bilateral lower limb symmetry during sit to stand and stand to sit tasks in stroke patients with hemiplegia |
| topic | stroke bilateral symmetry index sit-to-stand stand-to-sit |
| url | https://www.frontiersin.org/articles/10.3389/fneur.2025.1494133/full |
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