@article{Kalina_Cacec_Grasgruber_2014, title={The dynamics of changes in the indicators of running economy within 48 hours after application of explosive strength training}, volume={9}, url={https://www.jhse.ua.es/article/view/2014-v9-n1-proc-the-dynamics-of-changes-in-the-indicators-of-run}, DOI={10.14198/jhse.2014.9.Proc1.27}, abstractNote={<p>The aim of this study was to determine the dynamics of the indicators of running economy (VO<sub>2</sub>·BM<sup>- 1</sup>·min<sup>-1</sup> and ΔVO<sub>2</sub>·BM<sup>-1</sup>·min<sup>-1</sup>) within 48 hours after the application of explosive strength intervention (ESI). Nine university students, recreational athletes (age 23.8 ± 1.56 years, height 178 ± 4.8 cm, weight 74.8 ± 2.91 kg) underwent ESI (6 explosive strength exercises, 3 sets, 8 reps, rest 90 sec, maximum intensity) aimed mainly at lower limbs. The testing of running economy (RE) was performed during four separate measurements (-48, 0, 24 and 48 h; 0 = test immediately after the intervention) at 8, 10, 12 km·h<sup>-1</sup> (5 min intervals; the last 60 sec of each level were recorded). It was found that when compared with the pretest values (-48 h), the average ΔVO<sub>2</sub>·BM<sup>-1</sup>·min<sup>-1</sup> at 8 km·h<sup>-1</sup> changed by +3.8% immediately after the intervention (0), by +1.6% after 24 h, and by 0% after 48 h.  At 10 km·h<sup>-1</sup>, the changes were 6.3 - 4.3 - 0.4%, and at 12 km.h<sup>-1</sup> they were 5.2 - 4.3 - 1.5%. According to the available literature, it was realistic to expect a peak of O<sub>2</sub> consumption during 48 h after the intervention, but this was not observed. The results show the greatest deterioration of RE immediately after the intervention, with a subsequent decline of O<sub>2</sub> consumption to resting levels within 48 h.<strong> </strong></p><p> </p>}, number={1proc}, journal={Journal of Human Sport and Exercise}, author={Kalina, Tomáš and Cacec, Jan and Grasgruber, Pavel}, year={2014}, month={Jul.}, pages={S417-S421} }