46 research outputs found
Human Breathing Classification Using Electromyography Signal with Features Based on Mel-Frequency Cepstral Coefficients
Typical method on assessing the human breathing characteristics is based on measurements of breathing air parameters. Another possible method for human breathing assessment is through the analysis of respiratory muscles electromyography (EMG) signal. The EMG signal from different breathing task will be analyzed in order to determine the characteristics of the EMG signal pattern. Thus, feature extraction need to be done on the EMG signals. This paper will look into the use of Mel-Frequency Cepstral Coefficients (MFCC) in providing the features for EMG signal. Analysis is done using different data analysis frame sizes. EMG signal classification is done using K-Nearest Neighbour. Results shows that MFCC is a good feature extraction method for this purpose with classification accuracy exceeds more than 90% for data analysis frame size of 2000 ms, 4000 ms, 5000 ms and 10000 ms
Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 237
A bibliography is given on the biological, physiological, psychological, and environmental effects to which man is subjected during and following simulated or actual flight in the Earth's atmosphere or in interplanetary space. References describing similar effects of biological organisms of lower order are also included. Such related topics as sanitary problems, pharmacology, toxicology, safety and survival, life support systems, exobiology, and personnel factors receive appropriate attention. In general, emphasis is placed on applied research, but references to fundamental studies and theoretical principles related to experimental development also qualify for inclusion
A four dimensional spatio-temporal EMG mapping technique for study of the neuro-musculo-skeletal system
Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal
Selected topics in surface electromyography for use in the occupational setting: expert perspectives
"e various chapters in this compilation discuss surface electromyography as it can be applied to ergonomic studies. Topics include aspects associated with the use of electromyography for the study of ergonomic problems; the anatomic and physiologic information fundamental to understanding the recording and subsequent study of the electrical activity of muscles using surface electromyographic techniques; the fundamentals of recording electromyographic data during activities of interest to the ergonomist or in the setting where ergonomic activities are performed; the instrumentation required to obtain information from the electromyographic signal (including discussions of the relationship between temporal aspects of electromyography and anatomically associated movement, the relationship between electromyography and the production of force, and the relationship between electromyography and muscle fatigue); output forms for data analysis and applications interpretation of the electromyographic signal; functional muscle and the effects on electromyographic output; and the applications of electromyography in ergonomics." - NIOSHTIC-2"Editor in chief, Gary L. Soderberg"--P. iii."March 1992."Includes bibliographical references
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Cortical and psychophysiological effects of sensory modulation on attentional switching during exercise
The present research programme sought to further understanding of the neurophysiological
mechanisms that underlie the effects of music on exercise. Five original experiments were
conducted using a wide range of psychophysical, psychological, physiological, and
psychophysiological techniques. The results of the first study indicated that music partially
reallocates attention towards task-unrelated thoughts (i.e., external dissociation), suppresses
the amplitude of low-frequency waves in the brain, and enhances task performance. The
findings of the second study indicated that music can have a negative effect if delivered
during the execution of highly-demanding cognitive-motor tasks. In such instances, the right
parietal regions of the brain activate in response to the presence of auditory distractors and
prevent task performance from being compromised. The third study shed new light on the
neural control of working muscles and indicated that music has the potential to reduce the
frequency of electrical outputs emitted to the musculature and reduce the communication
between the central motor command and adjacent regions. The fourth study of this research
programme was conducted in an ecologically valid environment, wherein participants walked
at self-paced speeds in the presence of different auditory stimuli. The results of the fourth
study indicated that music elicits more positive affective responses and up-regulates beta
waves to a greater degree than no-music conditions. Finally, the fifth study of this thesis
made use of functional magnetic resonance imaging to explore the brain regions that activate
in response to exercise and music. The results of this final study revealed that the left inferior
frontal gyrus is highly active when individuals execute part-body exercises with music. The
present research programme provides a neurophysiological basis for the use of music in
exercise settings. The findings presented herein support the use of music as a valuable tool to
explore more complex psychophysiological phenomena such as attention, affect, and fatigue.Brazilian Government (Coordination for the Improvement of Higher Education Personnel [CAPES]
Aerospace medicine and biology: A cumulative index to a continuing bibliography (supplement 345)
This publication is a cumulative index to the abstracts contained in Supplements 333 through 344 of Aerospace Medicine and Biology: A Continuing Bibliography. Seven indexes are included -- subject, personal author, corporate source, foreign technology, contract number, report number, and accession number
A cumulative index to the 1976 issues of a continuing bibliography on Aerospace Medicine and Biology
This publication is a cumulative index to the abstracts contained in Supplements 151 through 162 of Aerospace Medicine and Biology: A continuing bibliography. It includes three indexes - subject, personal author, and corporate source
Workshop on Countering Space Adaptation with Exercise: Current Issues
The proceedings represent an update to the problems associated with living and working in space and the possible impact exercise would have on helping reduce risk. The meeting provided a forum for discussions and debates on contemporary issues in exercise science and medicine as they relate to manned space flight with outside investigators. This meeting also afforded an opportunity to introduce the current status of the Exercise Countermeasures Project (ECP) science investigations and inflight hardware and software development. In addition, techniques for physiological monitoring and the development of various microgravity countermeasures were discussed