Three dimensional motion capture applied to violin playing: A study on feasibility and characterization of the motor strategy

Andrea Ancillao, Bernardo Savastano, Manuela Galli, Giorgio Albertini

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Background and Objective Playing string instruments requires advanced motor skills and a long training that is often spent in uncomfortable postures that may lead to injuries or musculoskeletal disorders. Thus, it is interesting to objectively characterize the motor strategy adopted by the players. In this work, we implemented a method for the quantitative analysis of the motor performance of a violin player. Methods The proposed protocol takes advantage of an optoelectronic system and some infra-red reflecting markers in order to track player's motion. The method was tested on a professional violin player performing a legato bowing task. The biomechanical strategy of the upper limb and bow positioning were described by means of quantitative parameters and motion profiles. Measured quantities were: bow trajectory, angles, tracks, velocity, acceleration and jerk. Results A good repeatability of the bowing motion (CV < 2%) and high smoothness (jerk < 5 m/s3) were observed. Motion profiles of shoulder, elbow and wrist were repeatable (CV < 7%) and comparable to the curves observed in other studies. Jerk and acceleration profiles demonstrated high smoothness in the ascending and descending phases of bowing. High variability was instead observed for the neck angle (CV ∼56%). Conclusions “Quantitative” measurements, instead of “qualitative” observation, can support the diagnosis of motor disorders and the accurate evaluation of musicians’ skills. The proposed protocol is a powerful tool for the description of musician's performance, that may be useful to document improvements in playing abilities and to adjust training strategies.

Original languageEnglish
Pages (from-to)19-27
Number of pages9
JournalComputer Methods and Programs in Biomedicine
Volume149
DOIs
Publication statusPublished - Oct 1 2017

Fingerprint

Feasibility Studies
Bending (forming)
Motor Skills
Aptitude
Elbow
Wrist
Posture
Upper Extremity
Optoelectronic devices
Neck
Trajectories
Observation
Infrared radiation
Wounds and Injuries
Chemical analysis

Keywords

  • Bowing
  • Functional evaluation
  • Motion capture
  • Motor control
  • Performance evaluation
  • Violin playing

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Health Informatics

Cite this

Three dimensional motion capture applied to violin playing : A study on feasibility and characterization of the motor strategy. / Ancillao, Andrea; Savastano, Bernardo; Galli, Manuela; Albertini, Giorgio.

In: Computer Methods and Programs in Biomedicine, Vol. 149, 01.10.2017, p. 19-27.

Research output: Contribution to journalArticle

@article{2b5d526d47284658a99f16c8a7302add,
title = "Three dimensional motion capture applied to violin playing: A study on feasibility and characterization of the motor strategy",
abstract = "Background and Objective Playing string instruments requires advanced motor skills and a long training that is often spent in uncomfortable postures that may lead to injuries or musculoskeletal disorders. Thus, it is interesting to objectively characterize the motor strategy adopted by the players. In this work, we implemented a method for the quantitative analysis of the motor performance of a violin player. Methods The proposed protocol takes advantage of an optoelectronic system and some infra-red reflecting markers in order to track player's motion. The method was tested on a professional violin player performing a legato bowing task. The biomechanical strategy of the upper limb and bow positioning were described by means of quantitative parameters and motion profiles. Measured quantities were: bow trajectory, angles, tracks, velocity, acceleration and jerk. Results A good repeatability of the bowing motion (CV < 2{\%}) and high smoothness (jerk < 5 m/s3) were observed. Motion profiles of shoulder, elbow and wrist were repeatable (CV < 7{\%}) and comparable to the curves observed in other studies. Jerk and acceleration profiles demonstrated high smoothness in the ascending and descending phases of bowing. High variability was instead observed for the neck angle (CV ∼56{\%}). Conclusions “Quantitative” measurements, instead of “qualitative” observation, can support the diagnosis of motor disorders and the accurate evaluation of musicians’ skills. The proposed protocol is a powerful tool for the description of musician's performance, that may be useful to document improvements in playing abilities and to adjust training strategies.",
keywords = "Bowing, Functional evaluation, Motion capture, Motor control, Performance evaluation, Violin playing",
author = "Andrea Ancillao and Bernardo Savastano and Manuela Galli and Giorgio Albertini",
year = "2017",
month = "10",
day = "1",
doi = "10.1016/j.cmpb.2017.07.005",
language = "English",
volume = "149",
pages = "19--27",
journal = "Computer Methods and Programs in Biomedicine",
issn = "0169-2607",
publisher = "Elsevier Ireland Ltd",

}

TY - JOUR

T1 - Three dimensional motion capture applied to violin playing

T2 - A study on feasibility and characterization of the motor strategy

AU - Ancillao, Andrea

AU - Savastano, Bernardo

AU - Galli, Manuela

AU - Albertini, Giorgio

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Background and Objective Playing string instruments requires advanced motor skills and a long training that is often spent in uncomfortable postures that may lead to injuries or musculoskeletal disorders. Thus, it is interesting to objectively characterize the motor strategy adopted by the players. In this work, we implemented a method for the quantitative analysis of the motor performance of a violin player. Methods The proposed protocol takes advantage of an optoelectronic system and some infra-red reflecting markers in order to track player's motion. The method was tested on a professional violin player performing a legato bowing task. The biomechanical strategy of the upper limb and bow positioning were described by means of quantitative parameters and motion profiles. Measured quantities were: bow trajectory, angles, tracks, velocity, acceleration and jerk. Results A good repeatability of the bowing motion (CV < 2%) and high smoothness (jerk < 5 m/s3) were observed. Motion profiles of shoulder, elbow and wrist were repeatable (CV < 7%) and comparable to the curves observed in other studies. Jerk and acceleration profiles demonstrated high smoothness in the ascending and descending phases of bowing. High variability was instead observed for the neck angle (CV ∼56%). Conclusions “Quantitative” measurements, instead of “qualitative” observation, can support the diagnosis of motor disorders and the accurate evaluation of musicians’ skills. The proposed protocol is a powerful tool for the description of musician's performance, that may be useful to document improvements in playing abilities and to adjust training strategies.

AB - Background and Objective Playing string instruments requires advanced motor skills and a long training that is often spent in uncomfortable postures that may lead to injuries or musculoskeletal disorders. Thus, it is interesting to objectively characterize the motor strategy adopted by the players. In this work, we implemented a method for the quantitative analysis of the motor performance of a violin player. Methods The proposed protocol takes advantage of an optoelectronic system and some infra-red reflecting markers in order to track player's motion. The method was tested on a professional violin player performing a legato bowing task. The biomechanical strategy of the upper limb and bow positioning were described by means of quantitative parameters and motion profiles. Measured quantities were: bow trajectory, angles, tracks, velocity, acceleration and jerk. Results A good repeatability of the bowing motion (CV < 2%) and high smoothness (jerk < 5 m/s3) were observed. Motion profiles of shoulder, elbow and wrist were repeatable (CV < 7%) and comparable to the curves observed in other studies. Jerk and acceleration profiles demonstrated high smoothness in the ascending and descending phases of bowing. High variability was instead observed for the neck angle (CV ∼56%). Conclusions “Quantitative” measurements, instead of “qualitative” observation, can support the diagnosis of motor disorders and the accurate evaluation of musicians’ skills. The proposed protocol is a powerful tool for the description of musician's performance, that may be useful to document improvements in playing abilities and to adjust training strategies.

KW - Bowing

KW - Functional evaluation

KW - Motion capture

KW - Motor control

KW - Performance evaluation

KW - Violin playing

UR - http://www.scopus.com/inward/record.url?scp=85024854541&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85024854541&partnerID=8YFLogxK

U2 - 10.1016/j.cmpb.2017.07.005

DO - 10.1016/j.cmpb.2017.07.005

M3 - Article

C2 - 28802327

AN - SCOPUS:85024854541

VL - 149

SP - 19

EP - 27

JO - Computer Methods and Programs in Biomedicine

JF - Computer Methods and Programs in Biomedicine

SN - 0169-2607

ER -