SanteMusiqueV1, Main, Exploration, bibRecord, 001851

Roles of proximal-to-distal sequential organization of the upper limb segments in striking the keys by expert pianists.

Identifieur interne : 001851 ( Main/Exploration ); précédent : 001850; suivant : 001852

Roles of proximal-to-distal sequential organization of the upper limb segments in striking the keys by expert pianists.

Auteurs : Shinichi Furuya [Japon] ; Hiroshi Kinoshita

Source :

Neuroscience letters [ 0304-3940 ] ; 2007.

RBID : pubmed:17574744

Descripteurs français

KwdFr :
- Adulte (MeSH), Analyse de variance (MeSH), Femelle (MeSH), Humains (MeSH), Membre supérieur (physiologie), Mouvement (physiologie), Musique (MeSH), Mâle (MeSH), Performance psychomotrice (physiologie), Phénomènes biomécaniques (MeSH), Pratique professionnelle (MeSH), Temps de réaction (MeSH).
MESH :
- physiologie : Membre supérieur, Mouvement, Performance psychomotrice.
- Adulte, Analyse de variance, Femelle, Humains, Musique, Mâle, Phénomènes biomécaniques, Pratique professionnelle, Temps de réaction.

English descriptors

KwdEn :
- Adult (MeSH), Analysis of Variance (MeSH), Biomechanical Phenomena (MeSH), Female (MeSH), Humans (MeSH), Male (MeSH), Movement (physiology), Music (MeSH), Professional Practice (MeSH), Psychomotor Performance (physiology), Reaction Time (MeSH), Upper Extremity (physiology).
MESH :
- physiology : Movement, Psychomotor Performance, Upper Extremity.
- Adult, Analysis of Variance, Biomechanical Phenomena, Female, Humans, Male, Music, Professional Practice, Reaction Time.

Abstract

Roles played by the proximal-to-distal sequencing (PDS) of the multi-joint limb in a relatively slow target-aiming task by the arm were investigated using keystroke motion on the piano. Kinematic recordings were made while experts (N=7) and novices (N=7) of piano players performed an octave keystroke at four linearly-scaled loudness levels with a short tone production (staccato) technique. The temporal relationship of the peak angular velocity at the shoulder, elbow and wrist joints showed a clear PDS organization for the experts, but not for the novices. The result thus confirmed that the PDS occurred in a slow and skilled multi-joint movement. The summation effect of segmental speed in terms of increment of the peak segmental angular velocity was equal for both groups. Similarly, no group difference was found for the total kinetic energy produced by the upper limb during keystroke. The role of the PDS in piano keystroke thus cannot be explained by the exploitation of speed-summation effect and mechanical efficiency. Compared to the novices, the experts had a longer period and a greater magnitude of deceleration at the shoulder and elbow joints while their adjacent distal joints were accelerating. These results indicated that greater inertial forces had been generated to descend the forearm as well as the hand for the experts. A dominant role of the PDS in pianists can therefore be to effectively exploit motion-dependent interaction torques at the forearm and hand, and thereby reducing muscle-dependent torques to make the keystroke more physiologically efficient.

DOI: 10.1016/j.neulet.2007.05.051
PubMed: 17574744

Affiliations:

Japon

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Le document en format XML

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<term>Femelle</term>
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<front><div type="abstract" xml:lang="en">Roles played by the proximal-to-distal sequencing (PDS) of the multi-joint limb in a relatively slow target-aiming task by the arm were investigated using keystroke motion on the piano. Kinematic recordings were made while experts (N=7) and novices (N=7) of piano players performed an octave keystroke at four linearly-scaled loudness levels with a short tone production (staccato) technique. The temporal relationship of the peak angular velocity at the shoulder, elbow and wrist joints showed a clear PDS organization for the experts, but not for the novices. The result thus confirmed that the PDS occurred in a slow and skilled multi-joint movement. The summation effect of segmental speed in terms of increment of the peak segmental angular velocity was equal for both groups. Similarly, no group difference was found for the total kinetic energy produced by the upper limb during keystroke. The role of the PDS in piano keystroke thus cannot be explained by the exploitation of speed-summation effect and mechanical efficiency. Compared to the novices, the experts had a longer period and a greater magnitude of deceleration at the shoulder and elbow joints while their adjacent distal joints were accelerating. These results indicated that greater inertial forces had been generated to descend the forearm as well as the hand for the experts. A dominant role of the PDS in pianists can therefore be to effectively exploit motion-dependent interaction torques at the forearm and hand, and thereby reducing muscle-dependent torques to make the keystroke more physiologically efficient.</div>
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<Abstract><AbstractText>Roles played by the proximal-to-distal sequencing (PDS) of the multi-joint limb in a relatively slow target-aiming task by the arm were investigated using keystroke motion on the piano. Kinematic recordings were made while experts (N=7) and novices (N=7) of piano players performed an octave keystroke at four linearly-scaled loudness levels with a short tone production (staccato) technique. The temporal relationship of the peak angular velocity at the shoulder, elbow and wrist joints showed a clear PDS organization for the experts, but not for the novices. The result thus confirmed that the PDS occurred in a slow and skilled multi-joint movement. The summation effect of segmental speed in terms of increment of the peak segmental angular velocity was equal for both groups. Similarly, no group difference was found for the total kinetic energy produced by the upper limb during keystroke. The role of the PDS in piano keystroke thus cannot be explained by the exploitation of speed-summation effect and mechanical efficiency. Compared to the novices, the experts had a longer period and a greater magnitude of deceleration at the shoulder and elbow joints while their adjacent distal joints were accelerating. These results indicated that greater inertial forces had been generated to descend the forearm as well as the hand for the experts. A dominant role of the PDS in pianists can therefore be to effectively exploit motion-dependent interaction torques at the forearm and hand, and thereby reducing muscle-dependent torques to make the keystroke more physiologically efficient.</AbstractText>
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Roles of proximal-to-distal sequential organization of the upper limb segments in striking the keys by expert pianists.

Roles of proximal-to-distal sequential organization of the upper limb segments in striking the keys by expert pianists.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki