Current Search: Human locomotion (x)
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Title
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Activity analysis and detection of falling and repetitive motion.
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Creator
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Carryl, Clyde, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
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Abstract/Description
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This thesis examines the use of motion detection and analysis systems to detect falls and repetitive motion patterns of at-risk individuals. Three classes of motion are examined: Activities of daily living (ADL), falls, and repetitive motion. This research exposes a simple relationship between ADL and non-ADL movement, and shows how to use Principal Component Analysis and a kNN classifier to tell the 2 classes of motion apart with 100% sensitivity and specificity. It also identifies a more...
Show moreThis thesis examines the use of motion detection and analysis systems to detect falls and repetitive motion patterns of at-risk individuals. Three classes of motion are examined: Activities of daily living (ADL), falls, and repetitive motion. This research exposes a simple relationship between ADL and non-ADL movement, and shows how to use Principal Component Analysis and a kNN classifier to tell the 2 classes of motion apart with 100% sensitivity and specificity. It also identifies a more complex relationship between falls and repetitive motion, which both produce bodily accelerations exceeding 3G but differ with regard to their periodicity. This simplifies the classification problem of falls versus repetitive motion when taking into account that their data representations are similar except that repetitive motion displays a high degree of periodicity as compared to falls.
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Date Issued
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2013
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PURL
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http://purl.flvc.org/FAU/3360774
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Subject Headings
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Perpetual-motion processes, Human locomotion, Neural networks (Computer science), Artificial intelligence
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Format
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Document (PDF)
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Title
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The Acute Effects of Different Durations of Static Stretching on Dynamic Balance Performance.
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Creator
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Costa, Pablo Brando, Graves, B. Sue, Florida Atlantic University
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Abstract/Description
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The purpose of the study was to determine and compare the effects of different durations of stretching on balance. Female subjects (n=23) had their balance assessed before and after two stretching interventions and a control condition on three separate days, at least 48 hours apart. The quadriceps, hamstrings, and plantar flexors were stretched after a warm-up and repeated three times. In one stretching protocol, the positions were maintained for 45 seconds, while in the other stretching...
Show moreThe purpose of the study was to determine and compare the effects of different durations of stretching on balance. Female subjects (n=23) had their balance assessed before and after two stretching interventions and a control condition on three separate days, at least 48 hours apart. The quadriceps, hamstrings, and plantar flexors were stretched after a warm-up and repeated three times. In one stretching protocol, the positions were maintained for 45 seconds, while in the other stretching protocol, the positions were held for 15 seconds. The 15- second condition produced a significant improvement in the OSI scores (p < 0.05). However, repeated measures ANOVA revealed no significant differences between groups (p = 0.08). These results suggest a stretching protocol with 45-second hold durations does not adversely affect postural stability when using the current stabilometry testing procedure.
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Date Issued
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2007
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PURL
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http://purl.flvc.org/fau/fd/FA00000629
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Subject Headings
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Stretch (Physiology), Joints--Range of motion, Human locomotion, Musculoskeletal system--Physiology
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Format
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Document (PDF)
