Kenneth Sundaraj, Assoc. Prof. Dr.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/327972024-03-29T11:03:58Z2024-03-29T11:03:58ZGait disorder rehabilitation using vision and non-vision based sensors: a systematic reviewAsraf, AliKenneth, SundarajR. Badlishah, AhmadNizam, AhamedAnamul Islamhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/653672020-06-25T07:41:49Z2012-01-01T00:00:00ZGait disorder rehabilitation using vision and non-vision based sensors: a systematic review
Asraf, Ali; Kenneth, Sundaraj; R. Badlishah, Ahmad; Nizam, Ahamed; Anamul Islam
Even though the amount of rehabilitation guidelines has never been greater, uncertainty continues to arise regarding the efficiency and effectiveness of the rehabilitation of gait disorders. This question has been hindered by the lack of information on accurate measurements of gait disorders. Thus, this article reviews the rehabilitation systems for gait disorder using vision and non-vision sensor technologies, as well as the combination of these. All papers published in the English language between 1990 and June, 2012 that had the phrases “gait disorder”, “rehabilitation”, “vision sensor”, or “non vision sensor” in the title, abstract, or keywords were identified from the SpringerLink, ELSEVIER, PubMed, and IEEE databases. Some synonyms of these phrases and the logical words “and”, “or”, and “not” were also used in the article searching procedure. Out of the 91 published articles found, this review identified 84 articles that described the rehabilitation of gait disorders using different types of sensor technologies. Th is literature set presented strong evidence for the development of rehabilitation systems using a markerless vision-based sensor technology. We therefore believe that the information contained in this review paper will assist the progress of the development of rehabilitation systems for human gait disorders.
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2012-01-01T00:00:00ZSignificance of the electromyographic analysis of the upper limb muscles of cricket bowlers: Recommendations from studies of overhead-throwing athletesNizam Uddin, AhamedSundaraj, Kenneth, Assoc. Prof. Dr.R. Badlishah, Ahmad, Prof. Dr.Matiur J., RahmanMd. Ashraf, AliMd. Anamul, Islamhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/395252015-04-16T09:16:02Z2014-08-01T00:00:00ZSignificance of the electromyographic analysis of the upper limb muscles of cricket bowlers: Recommendations from studies of overhead-throwing athletes
Nizam Uddin, Ahamed; Sundaraj, Kenneth, Assoc. Prof. Dr.; R. Badlishah, Ahmad, Prof. Dr.; Matiur J., Rahman; Md. Ashraf, Ali; Md. Anamul, Islam
The purpose of this study was twofold: (i) to review the existing literature on electromyographic (EMG) analysis of the upper limb muscles of present overhead-throwing (OT) athletes during throwing and of cricket bowlers (CBs) during cricket bowling (CB) and, (ii) to discuss the importance of and generate recommendations for the EMG assessment of the muscle activity of CBs with respect to previous studies of OT athletes. A literature search of the PubMed, Scopus and Google Scholar electronic databases was performed to identify relevant articles published up to December 2012. This search was performed to evaluate the following areas, (i) what are the upper limb muscles that should be evaluated during OT sports and cricket bowling? (ii) what types of EMG methodologies have been used? (iii) what are the anthropometric, performance and physical functional variables that are usually selected? and (iv) what recommendations can be made for the assessment of the muscle activity of CBs? The search identifies 32 publications on OT athletes and 4 on CBs. The results note the following conclusions: (i) there are relatively few CB-related papers that utilize EMG, particularly for the assessment of muscle activity and coordination, (ii) a total of 22 upper limb muscles were investigated using EMG (from both criteria), (iii) surface electrodes are used more frequently than needle electrodes, (iv) most of the article normalized and analyzed the EMG amplitudes than the frequency, and the data was more often analyzed through a descriptive statistical analysis and (v) the majority of the studies analyzed the right limb of physically normal (uninjured) male's both the amateur and professional athletes that were 20 to 29 years of age. Finally, the published evidence on CBs is inadequate to validate a sound recommendation for the assessment of the muscles of CBs using EMG. However, the studies on OT athletes do provide guidelines that can be used to analyze CBs. The overall conclusion of this review show that, further studies are needed to evaluate the efficacy of EMG for the assessment of the upper limb muscle of CBs to ultimately identify and prevent injury which is still a matter of discussion in the sports medicine community.
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2014-08-01T00:00:00ZInter-hemispheric EEG coherence analysis in Parkinson's disease: Assessing brain activity during emotion processingYuvaraj, RajamanickamMurugappan, Muthusamy, Dr.Norlinah, Mohamed Ibrahim, Dr.Sundaraj, Kenneth, Prof. Dr.Mohammad Iqbal, Omar@Ye Htut, Assoc. Prof. Dr.Khairiyah, MohamadPalaniappan, RamaswamySatiyan, Marimuthuhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/394542015-04-14T02:26:44Z2014-06-01T00:00:00ZInter-hemispheric EEG coherence analysis in Parkinson's disease: Assessing brain activity during emotion processing
Yuvaraj, Rajamanickam; Murugappan, Muthusamy, Dr.; Norlinah, Mohamed Ibrahim, Dr.; Sundaraj, Kenneth, Prof. Dr.; Mohammad Iqbal, Omar@Ye Htut, Assoc. Prof. Dr.; Khairiyah, Mohamad; Palaniappan, Ramaswamy; Satiyan, Marimuthu
Parkinson's disease (PD) is not only characterized by its prominent motor symptoms but also associated with disturbances in cognitive and emotional functioning. The objective of the present study was to investigate the influence of emotion processing on inter-hemispheric electroencephalography (EEG) coherence in PD. Multimodal emotional stimuli (happiness, sadness, fear, anger, surprise, and disgust) were presented to 20 PD patients and 30 age-, education level-, and gender-matched healthy controls (HC) while EEG was recorded. Inter-hemispheric coherence was computed from seven homologous EEG electrode pairs (AF3-AF4, F7-F8, F3-F4, FC5-FC6, T7-T8, P7-P8, and O1-O2) for delta, theta, alpha, beta, and gamma frequency bands. In addition, subjective ratings were obtained for a representative of emotional stimuli. Interhemispherically, PD patients showed significantly lower coherence in theta, alpha, beta, and gamma frequency bands than HC during emotion processing. No significant changes were found in the delta frequency band coherence. We also found that PD patients were more impaired in recognizing negative emotions (sadness, fear, anger, and disgust) than relatively positive emotions (happiness and surprise). Behaviorally, PD patients did not show impairment in emotion recognition as measured by subjective ratings. These findings suggest that PD patients may have an impairment of inter-hemispheric functional connectivity (i.e., a decline in cortical connectivity) during emotion processing. This study may increase the awareness of EEG emotional response studies in clinical practice to uncover potential neurophysiologic abnormalities.
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2014-06-01T00:00:00ZA software prototype based emotional impairments detection in neurological disorders patients using wireless EEG signalsMurugappan, Muthusamy, Dr.Yuvaraj, RajamanickamNorlinah, Mohamed Ibrahim, Dr.Kenneth, Sundaraj, Dr.Mohd Iqbal, Omar, Dr.Khairiyah, Mohamadhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/370232014-09-02T06:43:53Z2014-05-01T00:00:00ZA software prototype based emotional impairments detection in neurological disorders patients using wireless EEG signals
Murugappan, Muthusamy, Dr.; Yuvaraj, Rajamanickam; Norlinah, Mohamed Ibrahim, Dr.; Kenneth, Sundaraj, Dr.; Mohd Iqbal, Omar, Dr.; Khairiyah, Mohamad
Social communication and the ability to respond emotional signals are essential for
meaningful Interpersonal Iinteractions
Received a Gold medal in 25th International Invention, Innovation & Technology Exhibition (ITEX'14), 8th-10th May at Kuala Lumpur Convention Centre.
2014-05-01T00:00:00Z