Physiological responses during interval training with different intensities and duration of exercise

Jorge M Zuniga, Kris Berg, John M Noble, Jeanette Harder, Morgan E. Chaffin, Vidya S. Hanumanthu

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The purpose of this study was to compare 4 interval training (IT) sessions with different intensities and durations of exercise to determine the effect on mean V̇O2, total V̇O2, and duration of exertion ≥95% maximum power output (MPO), and the effects on biomarkers of fatigue such as bloodlactate concentration (BLC) and rating of perceived exertion. The subjects were 12 recreationally competitive male (n = 7, mean ± SD age = 26.2 ± 3.9 years) and female (n = 5, mean ± SD age = 27.6 ± 4.3 years) triathletes. These subjects performed 4 IT sessions on a cycle ergometer varying in intensity (90 and 100% MPO) and duration of exercise (30 seconds and 3 minutes). This study revealed that IT using 30-second duration intervals (30-30 seconds) allows the athlete to perform a longer session, with a higher total and mean V̇O2 HR and lower BLC than 3-minute durations. Similarly, submaximal exertion at 90% of MPO also allows performing longer sessions with a higher total V̇O2 than 100% intensity. Thus, the results of the present study suggested that to increase the total time at high intensity of exercise and total V̇O2 of a single exercise session performed by the athlete, IT protocols of short durations (i.e., 30 seconds) and submaximal intensities (i.e., 90% MPO) should be selected. Furthermore, performing short-duration intervals may allow the athlete to complete a longer IT session with greater metabolic demands (V̇O 2) and lower BLC than longer (i.e., 3 minutes) intervals.

Original languageEnglish (US)
Pages (from-to)1279-1284
Number of pages6
JournalJournal of strength and conditioning research
Volume25
Issue number5
DOIs
StatePublished - May 1 2011

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Athletes
Exercise
Fatigue
Biomarkers

Keywords

  • Cardiovascular response
  • Exercise
  • Maximum oxygen consumption
  • Oxygen cost of exercise

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Physiological responses during interval training with different intensities and duration of exercise. / Zuniga, Jorge M; Berg, Kris; Noble, John M; Harder, Jeanette; Chaffin, Morgan E.; Hanumanthu, Vidya S.

In: Journal of strength and conditioning research, Vol. 25, No. 5, 01.05.2011, p. 1279-1284.

Research output: Contribution to journalArticle

Zuniga, Jorge M ; Berg, Kris ; Noble, John M ; Harder, Jeanette ; Chaffin, Morgan E. ; Hanumanthu, Vidya S. / Physiological responses during interval training with different intensities and duration of exercise. In: Journal of strength and conditioning research. 2011 ; Vol. 25, No. 5. pp. 1279-1284.
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