Effects of submaximal and supramaximal interval training on determinants of endurance performance in endurance athletes

Scand J Med Sci Sports. 2017 Mar;27(3):318-326. doi: 10.1111/sms.12660. Epub 2016 Feb 16.

Abstract

We compared the effects of submaximal and supramaximal cycling interval training on determinants of exercise performance in moderately endurance-trained men. Maximal oxygen consumption (VO2max ), peak power output (Ppeak ), and peak and mean anaerobic power were measured before and after 6 weeks (3 sessions/week) of submaximal (85% maximal aerobic power [MP], HIIT85 , n = 8) or supramaximal (115% MP, HIIT115 , n = 9) interval training to exhaustion in moderately endurance-trained men. High-intensity training volume was 47% lower in HIIT115 vs HIIT85 (304 ± 77 vs 571 ± 200 min; P < 0.01). Exercise training was generally associated with increased VO2max (HIIT85 : +3.3 ± 3.1 mL/kg/min; HIIT115 : +3.3 ± 3.6 ml/kg/min; Time effect P = 0.002; Group effect: P = 0.95), Ppeak (HIIT85 : +18 ± 9 W; HIIT115 : +16 ± 27 W; Time effect P = 0.045; Group effect: P = 0.49), and mean anaerobic power (HIIT85 : +0.42 ± 0.69 W/kg; HIIT115 : +0.55 ± 0.65 W/kg; Time effect P = 0.01; Group effect: P = 0.18). Six weeks of submaximal and supramaximal interval training performed to exhaustion seems to equally improve VO2max and anaerobic power in endurance-trained men, despite half the accumulated time spent at the target intensity.

Keywords: Aerobic capacity; cycling; endurance training; sprint performance.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Athletes*
  • Athletic Performance / physiology*
  • Fatigue
  • High-Intensity Interval Training / methods*
  • Humans
  • Male
  • Oxygen Consumption*
  • Physical Endurance / physiology*
  • Young Adult