title: Usage of Running Drills in an Interval Training Program: Implications Related to Biomechanical Parameters of Running.
abstract: The purpose of this study was to investigate the effects of running drills during an interval training program on biomechanical parameters of running. Thirty recreational runners, divided into 2 groups (control group and experimental group [EG]), were submitted to a 15-week interval training, but only EG performed running drills in the training. The test sessions were accomplished before and after intervention. Spatiotemporal and kinetic variables were analyzed at 2 speeds: maximum (Smax) and comfortable (Scomf). For moment effect, significant increases were observed for Scomf (8.9%) and Smax (10.7%) after training. Variables related to mechanical load were also higher after training for both speeds (LR1: 16.4% and Imp75: 7.8% at Scomf; LR1: 21.4% and Imp75: 8.1% at Smax). For training approach effect, higher value of Imp75 was observed in EG (10.1% at Scomf and 11.9% at Smax, without performance improvements). Also, EG presented higher values of Fy2 (6.7% at Scomf and 6.1% at Smax) and FT (13.3% at Scomf), variables related to the center of mass oscillation. As a conclusion, including running drills in a 15-week interval running training seems not to be an efficient procedure to improve parameters related to mechanical load and performance.
authors.affiliation: Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo (USP), São Paulo, Brazil.
authors.forename: Ana P S
authors.initials: AP
authors.lastname: Azevedo
authors.forename: Bruno
authors.initials: B
authors.lastname: Mezêncio
authors.forename: Raísa
authors.initials: R
authors.lastname: Valvassori
authors.forename: Fernanda O M
authors.initials: FO
authors.lastname: Anjos
authors.forename: Valdir J
authors.initials: VJ
authors.lastname: Barbanti
authors.forename: Alberto C
authors.initials: AC
authors.lastname: Amadio
authors.forename: Julio C
authors.initials: JC
authors.lastname: Serrão
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology; D012420:Running / Q000502:physiology*; D016474:Weight-Bearing