Global movements are generally composed of several simple movements. In this study we tested the hypothesis that the effects of practice on the performance of a simple movement cannot be highlighted when it is performed alone but only when it is part of a global movement. For this purpose we examined the performance of the touche movement in fencing, in terms of maximal speed of the foil, when it is performed alone and in combination with the lunge. The touche can be assimilated to a pointing task towards a target while the lunge can be assimilated to a forward stepping movement. Four international class fencers and five novices were tested. The results show that 1) the performance in the isolated touche condition was comparable between the two test populations, 2) the performance was higher in the expert population compared to the novice population in the sequential touche + lunge condition, and 3) the velocity of the centre of mass at the time of the peak velocity of the touche was higher in the expert population than in the novice population in the sequential touche + lunge condition. In line with Bernstein's concepts on the effects of practice on motor control it is suggested that the experts exploit to advantage the forces developed during the lunge whereas the novices do not.
Key words:
Fencing - speed performance - sequential movements
References
-
1
Belenkii Y Y, Gurfinkel V, Paltsev Y I.
Element of control of voluntary movements.
Biofizika.
1967;
12
135-141
-
2 Béraud P. Analyse expérimentale des coordinates posturo-cinétiques liées à la délivrance d'un coup de pied. Cas de la boxe française savate. University Aix-Marseille II; PhD thesis 1995: 134
-
3 Bernstein N. The coordination and regulation of movements. New York; Pergamon Press 1967
-
4
Bouisset S, Zattara M.
A sequence of postural movements precedes voluntary movements.
Neurosci Lett.
1981;
22
263-270
-
5
Bouisset S, Zattara M.
Biomechanical study of the programming of anticipatory postural adjustments associated with voluntary movement.
J Biomech.
1987;
20
735-742
-
6
Brenière Y, Do M C, Sanchez J.
A biomechanical study of the gait initiation process.
J Biophys Med Nucl.
1981;
5
197-205
-
7
Brenière Y, Do M C, Bouisset S.
Are dynamic phenomena prior to stepping essential for walking?.
J Mot Behav.
1987;
19
62-76
-
8
Carslöö S.
The initiation of walking.
Acta Anat.
1966;
65
1-9
-
9
Harmenberg J, Ceci R, Barvestad P, Hjerpe K, Nyström J.
Comparison of different tests of fencing performance.
Int J Sports Med.
1991;
12
573-576
-
10 Herman R, Cook T, Cozzens B, Freedman W. Control of postural reactions in man: the initiation of gait. In: Stein RB, Pearson KG, Smith RS, Redford JB (eds) Control of posture and locomotion. New York; Plenum 1973: 363-388
-
11
Mann R A, Hagy J L, White V, Liddell D.
The initiation of gait.
J Bone Joint Surg.
1979;
61
232-239
-
12
Zehr E P, Sale D G, Dowling J J.
Ballistic movement performance in karate athletes.
Med Sci Sports Exerc.
1997;
29
1366-1373
Éric Yiou
Laboratoire de Physiologie du Mouvement
INSERM U483
Université Paris-Sud
F-91405 Orsay
France
Phone: + 33-169-157231
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Email: eric.yiou@lpm.u-psud.fr
