動作分析於音樂傷害之應用－以大提琴學生演奏顫音時左上肢動作分析為例

Application of Motion Analysis to Studying Injury of Cello Students Playing Vibration-Sound

徐弘正(Horng-Jeng Shyu)

《秀傳醫學雜誌》 5卷1&2期 (2004/04) Pp. 31-36

摘要

Cellists often emplony the technique of plating vibration sound, which influences the sound quality of suing performance. The left hand does more finely coordinated and repetitive actions with the fingers, requiring equal amount of tension of the arm during playing. Left hand anti arm problems are more commonly seen in younger cello players.
We nse three-dimensional motor analysis and biofeedback equipment to evaluate the technique of playing vibration-sound. Twenty cello students were enrolled and divided into two groups according to their grade and years of training. (≥5 years and ＜5 years)
Data of wavelength of finger vibration, elbow stability and shoulder muscle intensity were collected. Statistical analysis by student-t test and correlation analysis showed no difference in shoulder muscle intensity between the two groups. There were statistical differene in wavelength of finger vibration and elbow stability (p＜0.05). The result of correlation analysis revealed strong correlation between left elbow stability and finger vibration wavelength. There was no correlation between shoulder intensity, elbow stability, finger vibration wavelength.
This study showed that shoulder problems are mechanical in nature, resulting from different causes. The most frequent of which were excessive playing and poor posture, over practicing, using excessive tension in any of the involved muscle groups. The vibration wavelength of finger is that main factor of vibration quality. We can observe the elbow stability instead of inspecting vibration wavelength of the fingers.
Three-dimensional motion analysis is better than video in teaching program of music students. It can provide scientific data for evaluating the posture, joint stability and joint speed of a musician during performance, which can shed light on the mechanism of musician's injury.

關鍵字

動作分析 ； 音樂表演傷害 ； 過用症候群

並列摘要

Cellists often emplony the technique of plating vibration sound, which influences the sound quality of suing performance. The left hand does more finely coordinated and repetitive actions with the fingers, requiring equal amount of tension of the arm during playing. Left hand anti arm problems are more commonly seen in younger cello players.
We nse three-dimensional motor analysis and biofeedback equipment to evaluate the technique of playing vibration-sound. Twenty cello students were enrolled and divided into two groups according to their grade and years of training. (≥5 years and ＜5 years)
Data of wavelength of finger vibration, elbow stability and shoulder muscle intensity were collected. Statistical analysis by student-t test and correlation analysis showed no difference in shoulder muscle intensity between the two groups. There were statistical differene in wavelength of finger vibration and elbow stability (p＜0.05). The result of correlation analysis revealed strong correlation between left elbow stability and finger vibration wavelength. There was no correlation between shoulder intensity, elbow stability, finger vibration wavelength.
This study showed that shoulder problems are mechanical in nature, resulting from different causes. The most frequent of which were excessive playing and poor posture, over practicing, using excessive tension in any of the involved muscle groups. The vibration wavelength of finger is that main factor of vibration quality. We can observe the elbow stability instead of inspecting vibration wavelength of the fingers.
Three-dimensional motion analysis is better than video in teaching program of music students. It can provide scientific data for evaluating the posture, joint stability and joint speed of a musician during performance, which can shed light on the mechanism of musician's injury.

並列關鍵字

motion analysis ； musician injury ； overuse injury