Changes in balance ability, power output, and stretch-shortening cycle utilisation after two high-intensity intermittent training protocols in endurance runners

  • García-Pinillos F
  • Párraga-Montilla J
  • Soto-Hermoso V
 et al. 
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Abstract

Purpose This study aimed to describe the acute effects of 2 different high-intensity intermittent trainings (HIITs) on postural control, countermovement jump (CMJ), squat jump (SJ), and stretch-shortening cycle (SSC) utilisation, and to compare the changes induced by both protocols in those variables in endurance runners. Methods Eighteen recreationally trained endurance runners participated in this study and were tested on 2 occasions: 10 runs of 400 m with 90 s recovery between running bouts (10 × 400 m), and 40 runs of 100 m with 30 s recovery between runs (40 × 100 m). Heart rate was monitored during both HIITs; blood lactate accumulation and rate of perceived exertion were recorded after both protocols. Vertical jump ability (CMJ and SJ) and SSC together with postural control were also controlled during both HIITs. Results Repeated measures analysis revealed a significant improvement in CMJ and SJ during 10 × 400 m (p 

Author-supplied keywords

  • Long-distance runner
  • Postural control
  • Reactive strength
  • Training prescription
  • Vertical jump

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