Relationships between coordination, active drag and propelling efficiency in crawl

Autor: Christophe Schnitzler, Gautier Bideault, Morgan Alberty, Ludovic Seifert, Didier Chollet, Huub M. Toussaint
Přispěvatelé: Centre d’études des transformations des activités physiques et sportives (CETAPS), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut de Recherche Interdisciplinaire Homme et Société (IRIHS), Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Univ Strasbourg, Sport Sci Fac, Strasbourg, France, Laboratoire d'Informatique, de Traitement de l'Information et des Systèmes (LITIS), Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Centre d'Optimisation de la Performance Motrice, Université Montpellier 1 (UM1)
Rok vydání: 2015
Předmět:
Zdroj: Human Movement Science
Human Movement Science, Elsevier, 2015, 39, pp.55-64. ⟨10.1016/j.humov.2014.10.009⟩
ISSN: 0167-9457
DOI: 10.1016/j.humov.2014.10.009
Popis: This study examines the relationships between the index of coordination (IdC) and active drag (D) assuming that at constant average speed, average drag equals average propulsion. The relationship between IdC and propulsive efficiency (ep) was also investigated at maximal speed. Twenty national swimmers completed two incremental speed tests swimming front crawl with arms only in free condition and using a measurement of active drag system. Each test was composed of eight 25-m bouts from 60% to 100% of maximal intensity whereby each lap was swum at constant speed. Different regression models were tested to analyse IdC-D relationship. Correlation between IdC and ep was calculated. IdC was linked to D by linear regression (IdC=0.246·D-27.06; R(2)=0.88, P
Databáze: OpenAIRE