Sport-Specific Balance Develops Specific Postural Skills
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LETTER TO THE EDITOR
Sport-Specific Balance Develops Specific Postural Skills Thierry Paillard
Ó The Author(s) 2014. This article is published with open access at Springerlink.com
I read the review by Zemkova´ [1], entitled Sport-Specific Balance, with great interest. This is an important research area that may contribute to a better understanding of the postural control system under various sport performance requirements. The main objectives of this review were to analyse the effects of various types of exercise on balance performance, and to provide new insights into the underlying physiological mechanisms that contribute to these effects. To this end, Zemkova´ [1] investigated the postural sway response to different forms of exercise under laboratory and sport-specific conditions to examine how this effect can vary with expertise, and to provide examples of the association of impaired balance with sport performance and/or increasing risk of injury. This author deduces that athletes of different specializations have a better ability to maintain balance in specific conditions (e.g. while standing on a narrow area of support) than physically active individuals. Zemkova´ [1] also observes differences in magnitude of balance impairment after specific exercises (rebound jumps, repeated rotations, etc.) and mainly in speed of readjustment to baseline. All the concepts proposed by Zemkova´ [1] are informative and enrich the two previous reviews that describe in a complementary way the relationship between sport activities and postural performance [2, 3]. Zemkova´ [1] especially analysed sport-specific balance and the adaptation abilities of the postural system, particularly in sport-
T. Paillard (&) Laboratoire Activite´ Physique, Performance et Sante´ (UPRES EA 4445), De´partement STAPS, Universite´ de Pau et des Pays de l’Adour, ZA Bastillac Sud, 11 rue Morane Saulnier, 65000 Tarbes, France e-mail: [email protected]
specific positions. Hence, one could expect to (also) find in this paper data describing the development of specific postural skills related to the sport practiced, particularly in sport-specific positions; however, Zemkova´ [1] did not really deal with this. Yet, the contribution of these data would have provided further insights into the underlying physiological mechanisms related to the effects of specific exercises on balance performance. Indeed, it is known that the nature and environment of the movements involved in the practise of different sports influence postural adaptation. Each type of sport training leads to specific postural regulations [4] induced by the acquisition of specific new motor skills [5] due to the practice of the specific movements. In fact, sport training develops specific postural skills (in sport-specific positions and in particular environments) in terms of postural performance and strategy. Postural performance (or postural stability) can be characterized by the ability to minimize postural sway, and the postural strategy corresponds to the preferential invol
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