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Kriel Y, Askew CD, Solomon C. Sprint interval exercise versus continuous moderate intensity exercise: acute effects on tissue oxygenation, blood pressure and enjoyment in 18-30 year old inactive men. PeerJ. 2019;7:e7077doi: 10.7717/peerj.7077.
Kriel, Y., Askew, C. D., & Solomon, C. (2019). Sprint interval exercise versus continuous moderate intensity exercise: acute effects on tissue oxygenation, blood pressure and enjoyment in 18-30 year old inactive men. PeerJ, 7e7077. https://doi.org/10.7717/peerj.7077
Kriel, Yuri, et al. "Sprint interval exercise versus continuous moderate intensity exercise: acute effects on tissue oxygenation, blood pressure and enjoyment in 18-30 year old inactive men." PeerJ vol. 7 (2019): e7077. doi: https://doi.org/10.7717/peerj.7077
Kriel Y, Askew CD, Solomon C. Sprint interval exercise versus continuous moderate intensity exercise: acute effects on tissue oxygenation, blood pressure and enjoyment in 18-30 year old inactive men. PeerJ. 2019 Jun 07;7:e7077. doi: 10.7717/peerj.7077. eCollection 2019. PMID: 31211019; PMCID: PMC6557258.
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PeerJ. 2019 Jun 07;7:e7077. doi: 10.7717/peerj.7077. eCollection 2019.

Sprint interval exercise versus continuous moderate intensity exercise: acute effects on tissue oxygenation, blood pressure and enjoyment in 18-30 year old inactive men.

PeerJ

Yuri Kriel, Christopher D Askew, Colin Solomon

Affiliations

  1. School of Health and Sports Sciences, University of the Sunshine Coast, Sippy Downs, Australia.

PMID: 31211019 PMCID: PMC6557258 DOI: 10.7717/peerj.7077

Abstract

BACKGROUND: Sprint interval training (SIT) can be as effective, or more effective, than continuous moderate intensity exercise (CMIE) for improving a primary risk factor for cardiometabolic disease, low cardiorespiratory fitness (CRF). However, there has been no direct comparison in inactive individuals, of the acute effects of a session of SIT with a work-matched session of CMIE on local oxygen utilisation, which is a primary stimulus for increasing CRF. Furthermore, post-exercise blood pressure (BP) and enjoyment, if symptomatic and low, respectively, have implications for safety and adherence to exercise and have not been compared between these specific conditions. It was hypothesised that in young inactive men, local oxygen utilisation would be higher, while post-exercise BP and enjoyment would be lower for SIT, when compared to CMIE.

METHODS: A total of 11 inactive men (mean ± SD; age 23 ± 4 years) completed a maximal ramp-incremental exercise test followed by two experiment conditions: (1) SIT and (2) work-matched CMIE on a cycle ergometer on separate days. Deoxygenated haemoglobin (∆HHb) in the pre-frontal cortex (FH), gastrocnemius (GN), left vastus lateralis (LVL) and the right vastus lateralis (RVL) muscles, systemic oxygen utilisation (VO

RESULTS: During SIT, compared to CMIE, ∆HHb in FH (

CONCLUSIONS: In young inactive men, higher levels of physiological stress occurred during SIT, which potentially contributed to lower levels of post-exercise DBP and enjoyment, when compared to CMIE.

Keywords: Blood pressure; CMIE; Continuous moderate intensity exercise; Enjoyment; HIIT; Inactive; NIRS; SIT; Sprint interval training

Conflict of interest statement

The authors declare that they have no competing interests.

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