An Investigation of Selected Muscle Potential Activity in Violin/Viola Vibrato Page: 3
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Weber, Matthew Joseph, An investigation of Selected
Muscle Potential Activity in Violin/Viola Vibrato. Doctor
of Philosophy (Music Education), August 1995, 388 pp., 16
tables, 34 figures, references, 37 titles.
The purpose was to investigate muscle potential during
the vibrato motion for successful, healthy violin/viola
performers. Electromyography was used to analyze parameters
of muscle potentials during performance of a standardized
exercise. These parameters were (a) evidence of potentials,
(b) patterns of potentials, and (c) timing relationships (24
muscles). This study also sought to replicate and expand
performance data from previous studies.
Procedures from three pilot studies were used to
standardize collection of EMG data. Synchronized video
recordings were used to determine vibrato speed and
conduct motion analysis. EMG data processing prior to
analysis included power spectrum analysis and
rectification, low-pass filtering, and smoothing data.
Motion analysis findings (£D) were 1.09 for the
elbow joints and 3.25 for the wrist joints. which
was an indication of range of motion, suggested much
greater activity in muscles controlling wrist movement
than those moving the elbow.
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Weber, Matthew J. (Matthew Joseph). An Investigation of Selected Muscle Potential Activity in Violin/Viola Vibrato, dissertation, August 1995; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc278616/m1/3/: accessed April 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; .