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Intermittent Exercise at Lactate Threshold Induces Lower Acute Stress than Its Continuous Counterpart in Middle-to-Older Aged Men

Author

Listed:
  • Taiki Yamamoto

    (Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan
    The Fukuoka University Institute for Physical Activity, Fukuoka University, Fukuoka 814-0180, Japan)

  • Yukiya Tanoue

    (Ritsumeikan-Global Innovation Research Organization, Ritsumeikan University, Shiga 525-0058, Japan
    Research Organization of Science and Technology Institute of Advanced Research for Sport and Health Science, Ritsumeikan University, Shiga 525-0058, Japan)

  • Yoshinari Uehara

    (Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan
    The Fukuoka University Institute for Physical Activity, Fukuoka University, Fukuoka 814-0180, Japan)

  • Yasuki Higaki

    (Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan
    The Fukuoka University Institute for Physical Activity, Fukuoka University, Fukuoka 814-0180, Japan)

  • Hiroaki Tanaka

    (Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan
    The Fukuoka University Institute for Physical Activity, Fukuoka University, Fukuoka 814-0180, Japan
    Deceased 23 April 2018.)

  • Kenji Narazaki

    (Center for Liberal Arts, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan)

Abstract

This study aimed to compare the degree of exhaustion and trophic effects between continuous exercise (CE) and intermittent exercise (IE) at lactate threshold (LT) intensity. Seven healthy men (age: 43–69 years) performed the following three experimental tests in a randomized crossover order: (1) control; (2) CE, performed as a 20-min of cycling at LT intensity; and (3) IE, performed as 20 sets of a one-min bout of cycling at LT intensity with a 30-s rest between every two sets. Heart rate (HR), blood lactate concentration (LA), rating of perceived exertion (RPE), catecholamines, cortisol, growth hormone, insulin-like growth factor (IGF)-1, and brain-derived neurotrophic factor (BDNF) were measured. The sampling timing in each test was as follows: 10 min before the onset of exercise, at the 25%, 50%, and 100% time points of exercise, and at 10 min after exercise. IE was found to be accompanied by a lower degree of exhaustion than CE in measures of HR, LA, RPE, catecholamines, and cortisol. In terms of trophic effects, both of IGF-1 and BDNF increased in CE, while a marginal increase of BDNF was observed in IE. The results indicated that IE induces lower stress than CE, but may not be effective for inducing trophic effects.

Suggested Citation

  • Taiki Yamamoto & Yukiya Tanoue & Yoshinari Uehara & Yasuki Higaki & Hiroaki Tanaka & Kenji Narazaki, 2022. "Intermittent Exercise at Lactate Threshold Induces Lower Acute Stress than Its Continuous Counterpart in Middle-to-Older Aged Men," IJERPH, MDPI, vol. 19(12), pages 1-11, June.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:12:p:7503-:d:842463
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