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Asymmetries during repeated treadmill sprints in elite female Rugby Sevens players.
Girard, Olivier; Racinais, Sébastien; Couderc, Anthony; Morin, Jean-Benoit; Ryu, Joong Hyun; Piscione, Julien; Brocherie, Franck.
Afiliación
  • Girard O; Exercise and Sport Science Department, School of Human Sciences, the University of Western Australia, Perth, Australia.
  • Racinais S; Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
  • Couderc A; Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
  • Morin JB; Research Department, French Rugby Union, Marcoussis, France.
  • Ryu JH; Faculty of Sport Sciences, University of Côte d'Azur, Nice, France.
  • Piscione J; Biomechanics Department, Aspire Academy, Doha, Qatar.
  • Brocherie F; Research Department, French Rugby Union, Marcoussis, France.
Sports Biomech ; 22(7): 863-873, 2023 Jul.
Article en En | MEDLINE | ID: mdl-32538689
This study describes asymmetry in the main running mechanical variables during repeated treadmill sprints in elite female athletes and examines whether inter-limb differences in sprinting mechanics increase with fatigue. Eighteen elite female players (French national Rugby Sevens team) performed 8 × 5-s sprints (25-s rest) on an instrumented motorised sprint treadmill. The group mean 'symmetry angle' (SA) scores were ~1-2% for contact time (1.6 ± 0.6%), aerial time (2.1 ± 0.8%), step frequency (1.3 ± 0.5%) and step length (1.6 ± 0.6%). Mean vertical and horizontal forces, vertical and leg stiffness presented SA values of 1.7 ± 1.5%, 2.4 ± 1.2%, 2.6 ± 0.2% and 2.5 ± 0.2%, respectively. The SA scores were ~2-8% for duration of braking (6.9 ± 5.0%) and propulsive (6.5 ± 4.4%) phases, peak braking (6.5 ± 2.5%) and propulsive (1.6 ± 0.9%) forces as well as net (5.8 ± 5.6%), braking (7.7 ± 5.3%) and propulsive (2.7 ± 1.6%) impulses. However, there was no influence of sprint repetition number on SA scores for tested variables (P > 0.05). In elite female Rugby Sevens players, there was no noticeable difference in asymmetries for the great majority of stride mechanical variables during repeated treadmill sprints.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carrera / Rendimiento Atlético Límite: Female / Humans Idioma: En Revista: Sports Biomech Asunto de la revista: MEDICINA ESPORTIVA Año: 2023 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carrera / Rendimiento Atlético Límite: Female / Humans Idioma: En Revista: Sports Biomech Asunto de la revista: MEDICINA ESPORTIVA Año: 2023 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Reino Unido