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  1. Article: Abnormal balance control mechanisms during dynamic reaching forward and quiet standing in patients with anterior cruciate ligament reconstruction.

    Wang, Wei / Li, Xudong / Shi, Runxiu / Wang, Cheng / Zhang, Ke / Ren, Xiaomin / Wei, Hui

    Frontiers in physiology

    2023  Volume 14, Page(s) 1176222

    Abstract: Purpose: ...

    Abstract Purpose:
    Language English
    Publishing date 2023-07-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2023.1176222
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Dysfunctional muscle activities and co-contraction in the lower-limb of lumbar disc herniation patients during walking.

    Wang, Wei / Wei, Hui / Shi, Runxiu / Lin, Leitong / Zhang, Lechi / Yue, Shouwei / Zhao, Qin / Jia, Xiaofeng / Li, Ke / Zhang, Yang

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 20432

    Abstract: This study aimed to investigate lower-limb muscle activities in gait phases and co-contraction of one gait cycle in patients with lumbar disc herniation (LDH). This study enrolled 17 LDH patients and 17 sex- and age-matched healthy individuals. Bilateral ...

    Abstract This study aimed to investigate lower-limb muscle activities in gait phases and co-contraction of one gait cycle in patients with lumbar disc herniation (LDH). This study enrolled 17 LDH patients and 17 sex- and age-matched healthy individuals. Bilateral muscle activities of the rectus femoris (RF), biceps femoris long head (BL), tibialis anterior (TA), and lateral gastrocnemius (LG) during walking were recorded. The gait cycle was divided into four phases by the heel strike and top off according to the kinematics tracks. Root mean square (RMS), mean frequency (MF), and co-contraction of surface electromyography signals were calculated. The LDH patients showed enhanced BL RMS during the single support phase (SS), second double support phase, and swing phase (SW) as well as decreased MF of RF during SS and of TA and LG during SW (p < 0.05). The co-contraction of the TA-LG was increased in LDH patients than in the control group (p < 0.05). Positive correlations were observed between TA-LG co-contraction (affected side, r = 0.557, p = 0.020; contralateral side, r = 0.627, p = 0.007) and the Oswestry disability index scores in LDH patients. LDH patients have increased BL firing rate and insufficient motor unit recruitment in specific phases in the lower limbs during walking. Dysfunction in LDH patients was associated with immoderate intermuscular co-contraction of the TA-LG during walking.
    MeSH term(s) Adult ; Aged ; Biomechanical Phenomena ; Case-Control Studies ; Electromyography ; Female ; Gait ; Humans ; Intervertebral Disc Degeneration/physiopathology ; Intervertebral Disc Displacement/physiopathology ; Lower Extremity/physiopathology ; Male ; Middle Aged ; Muscle Contraction ; Walking/physiology
    Language English
    Publishing date 2020-11-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-77150-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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