Abstract:
:Wearable robotic devices provide safe and intensive rehabilitation, enabling repeated motions for motor function recovery in stroke patients. The aim of this small case series was to demonstrate the training effects of a three-week robotic leg orthosis, and to investigate possible mechanisms of the sensory-motor alterations and improvements by using gait analysis and EMG. Three survivors of chronic strokes participated in robot-assisted gait therapy for three weeks. EMG signals from the rectus femoris (RF), tibialis anterior (TA), biceps femoris (BF), and medial gastrocnemius (MG), as well as kinetics and kinematics data of the lower limb, were recorded before and after the training. The normalized root mean squared (RMS) values of the muscles, the joint moments, joint angles, and the results of two clinical scales (Berg Balance scale, BBS, and the lower extremity subscale of Fugl-Meyer assessment, LE-FMA) were used for analysis. All participants experienced improved balance and functional performances and increased BBS and LE-FMA scores. The EMG results showed there was an increase of the normalized RMS values of the MG and BF on the affected side. Additionally, EMG activities of the agonist and antagonist pair (i.e. RF and BF) appeared to return to similar levels after training. The peak moment of hip flexor, knee extensor, and plantar flexor, which all contributed to push-off power, were found to have increased after training. In summary, the three-week training period using the wearable RLO improved the three participants' gait performance by regaining push-off power and improved muscle activation and walking speed.
journal_name
Biomed Mater Engjournal_title
Bio-medical materials and engineeringauthors
Li L,Ding L,Chen N,Mao Y,Huang D,Li Ldoi
10.3233/BME-151320subject
Has Abstractpub_date
2015-01-01 00:00:00pages
S329-40eissn
0959-2989issn
1878-3619pii
BME1320journal_volume
26 Suppl 1pub_type
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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doi:
更新日期:1991-01-01 00:00:00
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journal_title:Bio-medical materials and engineering
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更新日期:2005-01-01 00:00:00
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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journal_title:Bio-medical materials and engineering
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