Optimizing sprint interval exercise for post-exercise hypotension: A randomized crossover trial

Ketelhut, Sascha; Möhle, Martin; Gürlich, Tina; Hottenrott, Laura; Hottenrott, Kuno (2022). Optimizing sprint interval exercise for post-exercise hypotension: A randomized crossover trial. European journal of sport science, pp. 1-9. Taylor & Francis 10.1080/17461391.2022.2046860

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This study aimed to examine the effects of manipulating the rest intervals during sprint interval training (SIT) on post-exercise hypotension and within-session oxygen consumption.

Thirty healthy, trained adults (aged 30.9 ± 8.7 years; 14 males, 16 females; BMI 22.1 ± 2.3 kg/m2; VO2max 50.7 ± 7.8 ml/kg/min) completed two different SIT protocols (4x 30-seconds all-out cycling sprints) with a one-week washout period. Sprint bouts were separated by either 1 (R1) or 3 (R3) minutes of active recovery. Both before and throughout the 45 min after the training, peripheral systolic (pSBP) and diastolic (pDBP) blood pressure, central systolic (cSBP) and diastolic (cDBP) blood pressure, aortic pulse wave velocity (aPWV), stroke volume (SV), and heart rate (HR) were assessed. Throughout the SIT protocols, oxygen consumption (VO2) was monitored.

There were no significant differences in time spent at 75%, 85%, 95%, and 100% of maximal VO2 between R1 and R3. After R3, there was a significant reduction in pSBP, pDBP, cSBP, cDBP, and aPWV. After R1, there were no changes in the respective parameters. There were significant interaction effects in pSBD (p < 0.001), pDBP (p < 0.001), cSBP (p < 0.001), cDBP (p = 0.001), and aPWV (p = 0.033). HR significantly increased after both conditions. Only R1 resulted in a significant reduction in SV.

Longer resting intervals during SIT bouts seem to result in more substantial post-exercise hypotension effects. Time spent at a high percentage of maximal VO2 was not affected by rest interval manipulation.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Sport Science (ISPW)
07 Faculty of Human Sciences > Institute of Sport Science (ISPW) > Health Science

UniBE Contributor:

Ketelhut, Sascha Ingemar

Subjects:

700 Arts > 790 Sports, games & entertainment

ISSN:

1746-1391

Publisher:

Taylor & Francis

Language:

English

Submitter:

Edith Desideria Imthurn

Date Deposited:

27 Sep 2022 10:10

Last Modified:

27 Sep 2022 10:10

Publisher DOI:

10.1080/17461391.2022.2046860

PubMed ID:

35200094

Uncontrolled Keywords:

Sprint interval training; postexercise hypotension; blood pressure; hemodynamics; rest interval manipulation

BORIS DOI:

10.48350/173290

URI:

https://boris.unibe.ch/id/eprint/173290

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