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Usage of Running Drills in an Interval Training Program: Implications Related to Biomechanical Parameters of Running

Azevedo, Ana P.S.; Mezêncio, Bruno; Valvassori, Raísa; Anjos, Fernanda O.M.; Barbanti, Valdir J.; Amadio, Alberto C.; Serrão, Julio C.

Journal of Strength & Conditioning Research: July 2015 - Volume 29 - Issue 7 - p 1796–1802
doi: 10.1519/JSC.0000000000000831
Original Research

Abstract: Azevedo, APS, Mezêncio, B, Valvassori, R, Anjos, FOM, Barbanti, VJ, Amadio, AC, and Serrão, JC. Usage of running drills in an interval training program: Implications related to biomechanical parameters of running. J Strength Cond Res 29(7): 1796–1802, 2015—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.

Laboratory of Biomechanics, School of Physical Education and Sport, University of São Paulo (USP), São Paulo, Brazil

Address correspondence to Raísa Valvassori, raisa.valvassori@usp.br.

Copyright © 2015 by the National Strength & Conditioning Association.