title: The relationship between running economy and biomechanical variables in distance runners.
abstract: In this study, we analyzed the relationship between running economy (RE) and biomechanical parameters in a group running at the same relative intensity and same absolute velocity. Sixteen homogeneous male long-distance runners performed a test to determine RE at 4.4 m.s(-1), corresponding to 11.1% below velocity at the ventilatory threshold. We found significant correlations between RE and biomechanical variables (vertical oscillation of the center of mass, stride frequency, stride length, balance time, relative stride length, range of elbow motion, internal knee, ankle angles at foot strike, and electromyographic activity of the semitendinosus and rectus femoris muscles). In conclusion, changes in running technique can influence RE and lead to improved running performance.
authors.affiliation: Physical Education School, Federal University of Rio Grande do Sul. mtarraruga@hotmail.com
authors.forename: Marcus Peikriszwili
authors.initials: MP
authors.lastname: Tartaruga
authors.forename: Jeanick
authors.initials: J
authors.lastname: Brisswalter
authors.forename: Leonardo Alexandre
authors.initials: LA
authors.lastname: Peyré-Tartaruga
authors.forename: Aluísio Otávio Vargas
authors.initials: AO
authors.lastname: Avila
authors.forename: Cristine Lima
authors.initials: CL
authors.lastname: Alberton
authors.forename: Marcelo
authors.initials: M
authors.lastname: Coertjens
authors.forename: Eduardo Lusa
authors.initials: EL
authors.lastname: Cadore
authors.forename: Carlos Leandro
authors.initials: CL
authors.lastname: Tiggemann
authors.forename: Eduardo Marczwski
authors.initials: EM
authors.lastname: Silva
authors.forename: Luiz Fernando Martins
authors.initials: LF
authors.lastname: Kruel
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology; D001696:Biomechanical Phenomena; D004576:Electromyography; D006801:Humans; D007596:Joints / Q000502:physiology; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D012044:Regression Analysis; D012420:Running / Q000502:physiology*